Core Laboratories LP, Core Laboratories LP is a Limited partnership organized under the laws of Delaware. It is composed of Core Laboratories LLC, Limited liability company, Delaware ()
Core Laboratories LP, Core Laboratories LP is a Limited partnership organized under the laws of Delaware. It is composed of Core Laboratories LLC, Limited liability company, Delaware ()
Oil well completion tools for stimulation treatments, namely, molded cylinders of explosive material surrounding support tubes and detonators for the explosive material
3.
NOVEL METHODS AND RELATED SYSTEMS TO ESTIMATE WATER CONTENT OF SUBTERRANEAN CORE SAMPLES
A method of processing a core sample includes the steps of: hermetically sealing the core sample in a chamber of an enclosure, comminuting the core sample while the chamber is hermetically sealed, injecting a hydrophilic agent into the chamber, wherein a slurry is formed by at least the hydrophilic agent and water released by the core sample, extracting at least a portion of the slurry from the chamber, separating a fluid from the slurry, analyzing the separated fluid to estimate an amount of water in the fluid, and estimating a water content of the core sample using the estimated amount of water in the fluid.
A method of remediation includes positioning a well tool in a bore of the first wellbore tubular, the well tool having at least one shaped charge and at least one propellant body. The method further includes detonating the shaped charge to generate a jet that forms an opening in a first wellbore tubular and a tunnel at least partially in a cement body, but does not form an opening in a second wellbore tubular. The method also includes igniting the propellant body to generate a gas at a volume and pressure selected to disintegrate the cement body.
An apparatus for perforating a wellbore includes a plurality of perforator units that includes a first perforator unit and a second perforator unit; and a signal transfer module connecting the first perforator unit to the second perforator unit. The signal transfer module includes an enclosure having a bore, an input end, and an output end, an initiator positioned adjacent to the first perforator unit and at least partially in the enclosure, an initiator, an igniter, a fuse, and an isolator. The initiator generates a shock wave when initiated. The igniter is positioned in the enclosure and generates a low order output upon receiving the shock wave generated by the initiator. The fuse is positioned in the enclosure and is initiated by the low order output of the igniter. The fuse outputs a high order output from the output end of the enclosure. The isolator secures the fuse body in the bore of the enclosure. The isolator includes a shock attenuator. Only the shock attenuator physically connects the fuse to the enclosure.
A tracer particle includes a silica core and a plurality of polymer-coated oligonucleotides disposed within the silica core, on a surface of the silica core, or a combination thereof. Each of the polymer-coated oligonucleotides include a polymer that at least partially surrounds an oligonucleotide.
C09K 8/92 - Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
G01V 3/26 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
G01V 8/00 - Prospecting or detecting by optical means
C09K 8/70 - Compositions for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
7.
OLIGONUCLEOTIDE-CONTAINING TRACER PARTICLES FOR SUBTERRANEAN APPLICATIONS
A tracer particle includes a silica core and a plurality of polymer-coated oligonucleotides disposed within the silica core, on a surface of the silica core, or a combination thereof. Each of the polymer-coated oligonucleotides comprise a polymer that at least partially surrounds an oligonucleotide.
A tracer particle includes a silica core and a plurality of polymer-coated oligonucleotides disposed within the silica core, on a surface of the silica core, or a combination thereof. Each of the polymer-coated oligonucleotides comprise a polymer that at least partially surrounds an oligonucleotide.
E21B 43/26 - Methods for stimulating production by forming crevices or fractures
C09K 8/92 - Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
C09K 8/70 - Compositions for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams
E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
G01V 8/00 - Prospecting or detecting by optical means
G01V 3/26 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
9.
ALIGNMENT ASSEMBLY FOR DOWNHOLE TOOLS AND RELATED METHODS
An apparatus for perforating a subterranean formation comprises a first perforating gun (33b) having a box end (112) having a nose, a second perforating gun (33a) having a pin end (118) having a shoulder (124); and an alignment assembly. The alignment assembly includes internal threads formed on the box end, external threads formed on the pin end, and an alignment member (120) positioned between the box end nose and the pin end shoulder. The internal threads and the external threads are specified to form an angular alignment between the first perforating gun and the second perforating gun within a first specified angular tolerance. The alignment member has at least one characteristic selected to vary the angular alignment within the first specified angular tolerance without degrading a locking force connecting the first perforating gun to the second perforating gun.
A method for completing a subterranean formation includes conveying a perforator assembly into a borehole drilled in the subterranean formation. The perforator assembly includes at least one shaped charge and at least one tracer package that includes at least one fluid production tracer material and a tracer injector. The method further includes forming at least one tunnel in a production structure by detonating one or more shaped charges and injecting the at least one fluid production tracer material into the formation using the tracer injector after the detonation of the at least one shaped charge. The at least one production tracer material physically associates with at least one resident fluid in the subterranean formation.
An apparatus for analyzing a core sample obtained from a subterranean formation includes a neutron generator, a plurality of detectors, a computed tomography scanner, an information processing device, and a transport system. The neutron generator can operate in a pulsed mode and emit neutrons into the core sample.
G01N 23/046 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
G01N 23/221 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by activation analysis
G01N 23/2206 - Combination of two or more measurements, at least one measurement being that of secondary emission, e.g. combination of secondary electron [SE] measurement and back-scattered electron [BSE] measurement
G01N 23/204 - Measuring back scattering using neutrons
A method of processing a core sample includes the steps of: hermetically sealing the core sample in a chamber of an enclosure, comminuting the core sample while the chamber is hermetically sealed, injecting a hydrophilic agent into the chamber, wherein a slurry is formed by at least the hydrophilic agent and water released by the core sample, extracting at least a portion of the slurry from the chamber, separating a fluid from the slurry, analyzing the separated fluid to estimate an amount of water in the fluid, and estimating a water content of the core sample using the estimated amount of water in the fluid.
A method of remediation includes positioning a well tool in a bore of the first wellbore tubular, the well tool having at least one shaped charge and at least one propellant body. The method further includes detonating the shaped charge to generate a jet that forms an opening in a first wellbore tubular and a tunnel at least partially in a cement body, but does not form an opening in a second wellbore tubular. The method also includes igniting the propellant body to generate a gas at a volume and pressure selected to disintegrate the cement body.
An apparatus for perforating a wellbore includes a plurality of perforator units that includes a first perforator unit and a second perforator unit; and a signal transfer module connecting the first perforator unit to the second perforator unit. The signal transfer module includes an enclosure having a bore, an input end, and an output end, an initiator positioned adjacent to the first perforator unit and at least partially in the enclosure, an initiator, an igniter, a fuse, and an isolator. The initiator generates a shock wave when initiated. The igniter is positioned in the enclosure and generates a low order output upon receiving the shock wave generated by the initiator. The fuse is positioned in the enclosure and is initiated by the low order output of the igniter. The fuse outputs a high order output from the output end of the enclosure. The isolator secures the fuse body in the bore of the enclosure. The isolator includes a shock attenuator. Only the shock attenuator physically connects the fuse to the enclosure.
An apparatus for perforating a subterranean formation comprises a first perforating gun (33b) having a box end (112) having a nose, a second perforating gun (33a) having a pin end (118) having a shoulder (124); and an alignment assembly. The alignment assembly includes internal threads formed on the box end, external threads formed on the pin end, and an alignment member (120) positioned between the box end nose and the pin end shoulder. The internal threads and the external threads are specified to form an angular alignment between the first perforating gun and the second perforating gun within a first specified angular tolerance. The alignment member has at least one characteristic selected to vary the angular alignment within the first specified angular tolerance without degrading a locking force connecting the first perforating gun to the second perforating gun.
A firing head for selectively activating an initiator of a downhole tool may include a housing, a pin, and a moveable stopper. The housing may have a bore and a radially enlarged chamber formed along the bore. The pin is disposed in the bore and has a circumferential groove formed on an outer surface of the shank. The moveable stopper is disposed in the radially enlarged chamber. The stopper is only partially disposed in the groove when the housing is in a vertical position. The stopper moves out of the groove when the housing has a predetermined minimum angular deviation from the vertical position.
F42C 15/34 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
17.
PERFORATING AND TRACER INJECTION SYSTEM FOR OILFIELD APPLICATIONS
A method for completing a subterranean formation includes conveying a perforator assembly into a borehole drilled in the subterranean formation. The perforator assembly includes at least one shaped charge and at least one tracer package that includes at least one fluid production tracer material and a tracer injector. The method further includes forming at least one tunnel in a production structure by detonating one or more shaped charges and injecting the at least one fluid production tracer material into the formation using the tracer injector after the detonation of the at least one shaped charge. The at least one production tracer material physically associates with at least one resident fluid in the subterranean formation.
An apparatus (100) for selectively firing a perforating gun having a plurality of gun assemblies (110,112) may include an end plate (202), a portion of a signal communication circuit (116), an initiator assembly, and an initiating element. The end plate has a cavity (206) formed by at least a first passage intersecting a second passage. The first passage (230) extends from a planar end face of the end plate and the second passage (232) extends from a circumferential surface of the end plate. The portion of a signal communication circuit is disposed in the end plate and conveys signals between the first gun and the second gun. The initiator assembly is at least partially disposed in the first passage. The initiating element (248) is sized to pass through the second passage. The initiating element is also configured to electrically couple to the portion of the signal communication circuit and to thermally couple to the initiator assembly when at least partially seated in the first passage.
A method for analyzing a geologic core sample, comprising (i) obtaining a geologic core sample; (ii) placing the geologic core sample in a container; (iii) placing said container in an analyzer, wherein said analyzer has a pulsed neutron generator, and a high resolution gamma detector and a spectrometer; (iv) bombarding said container with neutrons generated by said pulsed neutron generator; (v) detecting gamma rays emitted by the geologic core sample in said sealed container; and (vi) measuring said gamma rays spectra to determine material properties of the geologic core sample with said high resolution gamma detector and said spectrometer.
G01N 23/222 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by activation analysis using neutron activation analysis [NAA]
An apparatus for selectively firing a perforating gun having a plurality of gun assemblies includes a plurality of cartridge assemblies. Each cartridge assembly is associated with a gun assembly of the plurality of gun assemblies. Each cartridge assembly includes a body having a cavity, an input contact configured to receive a signal, and a throughput contact configured to convey the signal. The perforating gun may include a carrier and at least one bulkhead.
The present disclosure includes a core sample analysis system that includes a portable sampling device configured to be positioned adjacent to a subsurface core sample. The portable sampling device includes a first module that includes a radiation source. Also, the portable sampling device includes a second module that includes a detector that is configured to detect radiation emitted from the radiation source that reflects off of the subsurface core sample.
G01N 23/22 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material
G01N 23/223 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
G01V 5/04 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
G01V 5/12 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using gamma- or X-ray sources
G01N 23/20008 - Constructional details of analysers, e.g. characterised by X-ray source, detector or optical systemAccessories thereforPreparing specimens therefor
G01N 23/20066 - Measuring inelastic scattering of gamma rays, e.g. Compton effect
G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
G01N 23/20 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using diffraction of the radiation by the materials, e.g. for investigating crystal structureInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materialsInvestigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by using reflection of the radiation by the materials
22.
MULTI-PHASE, SINGLE POINT, SHORT GUN PERFORATION DEVICE FOR OILFIELD APPLICATIONS
An apparatus for perforating an unconventional subterranean formation includes a charge holder having a passage along a long axis, a detonating device positioned in the passage and a plurality of shaped charges supported by the charge holder and circumferentially distributed along a same plane that is transverse to the long axis. Each shaped charge is formed of at least a charge case, an explosive material disposed in the charge case, and a liner enclosing the explosive material in the charge case. All of the shaped charges are directly energetically coupled to the detonating device.
A firing head assembly for a well tool includes a shaft, a piston head, a biasing member, and a housing. The shaft has a nose and a terminal end. The shaft also includes a first shoulder and a second shoulder formed between the nose and the terminal end. The piston head slides along the shaft and is positioned between the retaining element and the first shoulder. The biasing member is mounted on the shaft and positioned between the piston head and the second shoulder. The housing has a bore in which the shaft, the piston head, and biasing member are disposed. The housing includes an opening allowing fluid communication between the housing bore and the borehole fluid external to the housing.
A signal transfer assembly includes a signal transfer propellant assembly and a signal transfer connector tube in hydraulic communication with a signal transfer firing head. The signal transfer propellant assembly has a piston and a gas generating energetic material. The signal transfer connector tube has a bore and a first opening allowing fluid communication between a borehole fluid surrounding the connector tube and the bore. The piston generates a pressure pulse when propelled through the bore by the generated gas. The signal transfer firing head assembly includes a housing having a second opening allowing fluid communication between the housing bore and the borehole fluid. A related method includes forming a well tool by operatively connecting a signal transfer assembly as described above to a primary downhole tool and a secondary downhole tool; conveying the well tool into a wellbore using a work string; and activating the secondary downhole tool by initiating the primary downhole tool.
In aspects, the present disclosure provides a perforating gun that includes a carrier tube, and a charge tube assembly. The carrier tube includes a bore and a groove formed along an inner surface. The charge tube assembly is disposed in the bore of the carrier tube and includes a charge tube, an alignment end plate, an insertion end plate, a retention member, shaped charges, and a detonating cord. The charge tube has a plurality of shaped charge openings, a plurality of post openings, a first end, and a second end. The alignment end plate is connected to the first end of the charge tube. The insertion end plate is connected to the second end of the charge tube. The shaped charges are disposed in each of the shaped charge openings. Each shaped charge has a post projecting out of one post opening. The detonating cord is connected to each of the projecting posts.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
A well tool (60) includes a perforating gun (108), a sealing element (130), at least one pressure sensor (150), a detector (132), a controller (152), and an anchor (134). The perforating gun (108) perforates the wellbore tubular in response to a firing signal. The sealing element (130) is connected to the perforating gun (108) and generates a pressure differential thereacross. The at least one pressure sensor (150) is associated with the sealing element (130) and detects a surface transmitted pressure signal. The detector (132) detects at least one marker (70) positioned along the wellbore (12) and which includes a perforating marker (70) associated with a perforating depth. The controller (152) is in signal communication with the at least one pressure sensor (150) and the detector (132) and is configured to transmit the firing signal to the perforating gun (108) only after: (i) the at least one pressure sensor (150) detects the surface transmitted pressure signal, and (ii) the detector (132) detects the perforating marker (70). The anchor (134) is connected to the perforating gun (108) and selectively locks the perforating gun (108) to the wellbore tubular.
A firing head for selectively activating an initiator of a downhole tool may include a housing, a pin, and a moveable stopper. The housing may have a bore and a radially enlarged chamber formed along the bore. The pin is disposed in the bore and has a circumferential groove formed on an outer surface of the shank. The moveable stopper is disposed in the radially enlarged chamber. The stopper is only partially disposed in the groove when the housing is in a vertical position. The stopper moves out of the groove when the housing has a predetermined minimum angular deviation from the vertical position.
A method for completing an unconventional subterranean formation include the steps of positioning a perforating tool in a section of the deviated wellbore that intersects the unconventional formation, forming at least one opening in a production structure without substantially penetrating into a surrounding formation by firing the perforating tool, and fracturing the formation by pumping a fracturing fluid through the at least one opening. The perforating tool may include shaped charges that have a charge case, a liner disposed in the charge case, and an explosive material filling an interior of the charge case.
An apparatus for use with a perforating gun includes a charge tube and at least one endplate. The charge tube has a cylindrical wall, a first end, an upper opening formed proximate to the first end, and a lower opening formed proximate to the first end. The at least one endplate has a central insert having a first section projecting from a second section. The first section seats in the upper opening of the first end and the second section seats in the lower opening of the first end.
A detonator includes a metal casing having a bore defined by an inner surface an electrical circuit. The electrical circuit may include an insulating body at least partially disposed in the bore, a first and a second lead wire at least partially enclosed by the insulating body, wherein the insulating body includes a gap forming an open space between the first and the second lead wire and the inner surface, and a heating element connecting the first lead wire to the second lead wire. The detonator may also include an energetic material positioned in the bore and next to the heating element.
A well tool (60) includes a perforating gun (108), a sealing element (130), at least one pressure sensor (150), a detector (132), a controller (152), and an anchor (134). The perforating gun (108) perforates the wellbore tubular in response to a firing signal. The sealing element (130) is connected to the perforating gun (108) and generates a pressure differential thereacross. The at least one pressure sensor (150) is associated with the sealing element (130) and detects a surface transmitted pressure signal. The detector (132) detects at least one marker (70) positioned along the wellbore (12) and which includes a perforating marker (70) associated with a perforating depth. The controller (152) is in signal communication with the at least one pressure sensor (150) and the detector (132) and is configured to transmit the firing signal to the perforating gun (108) only after: (i) the at least one pressure sensor (150) detects the surface transmitted pressure signal, and (ii) the detector (132) detects the perforating marker (70). The anchor (134) is connected to the perforating gun (108) and selectively locks the perforating gun (108) to the wellbore tubular.
A perforating tool (40) includes a charge holder (60) connected to a work string (112) and a perforator (10) fixed in a charge holder disposed along the work string. The perforator includes a cylindrical case (12), an explosive material, a metal cap (14), and a detonating cord (46). The case has a bulkhead (50) at a first end, an open mouth at a second end, and an interior volume. The first end includes a post (54) having a slot (56). The explosive material is disposed in the interior volume. The metal cap (14) covers the open mouth of the case and has a disk section (20) defined by a separator ring (22). The separator ring has a structurally weakened zone (24) that encircles the disk section. The detonating cord is received in the slot of the post.
A perforating gun includes a charge tube disposed inside a carrier and a plurality of sets of shaped charges axially distributed along the charge tube. Each shaped charge of the plurality of shaped charges is supported at an opening in the charge tube. The perforating gun also includes a plurality of detonator cords. Each detonator cord of the plurality of detonator cords connects to one shaped charge in each set of shaped charges.
A perforating tool (100) includes an encapsulated shaped charge (10) that has a bulkhead (26) with a reduced wall thickness section (34), a plate (55) having a shallow recess, and a detonating cord (50) having an energetic core (52). The energetic core forms the plate into an explosively formed perforator when detonated. The plate is positioned to direct the explosively formed perforator into the reduced wall thickness section.
A modular lifting system, including an enclosable lifting device support structure. The enclosable lifting device support structure includes a deployable top, a plurality of lateral sides, a base coupled to the plurality of lateral sides, and a plurality of extension arms. The deployable top is configured to support a lifting device on a first side of the deployable top. The plurality of extension arms are configured to extend and support the deployable top when the deployable top is deployed.
B66C 1/42 - Gripping members engaging only the external or internal surface of the articles
E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
B66C 23/14 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontalLevel-luffing jib cranes with means, e.g. pantograph arrangements, for varying jib configuration
B66C 23/20 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes with supporting couples provided by walls of buildings or like structures
A perforating gun has shaped charges that can generate a high-pressure gas. A valve sub connects to the perforating gun and a reservoir sub connects to the valve sub. The valve sub has an enclosure with a port. A mandrel in the enclosure has a piston head and a fluid path extending at least partially through the mandrel. A sleeve is slidably mounted on the mandrel and selectively blocks fluid flow through the port. A pressure chamber in the sleeve receives the generated high-pressure gas via the fluid path. The sleeve slides toward the perforating gun after a predetermined pressure is created by the generated high-pressure gas in the pressure chamber. The reservoir sub may have at least one chamber in fluid communication with the interior of the valve sub.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
An initiation block for connecting a detonator with a detonating cord has a body that includes opposing first and second faces and a first and a second chamber extending between the opposing faces. The first chamber is formed by a first bore serially arranged with a second bore, which is shaped to seat the detonator adjacent to the second face. The second chamber is parallel with the first chamber and shaped complementary to the detonating cord. A passage provides communication between the first chamber and the second chamber. A booster is positioned in the first bore, proximate to the first face, and along the passage. The body further has an opening that provides communication between an exterior of the body and a portion of the chamber between the booster and the detonator.
An initiation block for connecting a detonator with a detonating cord may have a body having a first face opposing a second face; a first chamber extending between the opposing faces and through the body, the first chamber being formed by a first bore serially arranged with a second bore, the second bore being shaped to seat the detonator adjacent to the second face; a second chamber extending between the opposing faces and through the body, the second chamber being parallel with the first chamber, the second chamber shaped complementary to the detonating cord; a passage providing communication between the first chamber and the second chamber; a booster positioned in the first bore and proximate to the first face, the booster positioned along the passage; and an opening formed in the body, the opening providing communication between an exterior of the body and a portion of the chamber between the booster and the detonator.
In aspects, the present disclosure provides a perforating gun that includes a carrier tube, and a charge tube assembly. The carrier tube includes a bore and a groove formed along an inner surface. The charge tube assembly is disposed in the bore of the carrier tube and includes a charge tube, an alignment end plate, an insertion end plate, a retention member, shaped charges, and a detonating cord. The charge tube has a plurality of shaped charge openings, a plurality of post openings, a first end, and a second end. The alignment end plate is connected to the first end of the charge tube. The insertion end plate is connected to the second end of the charge tube. The shaped charges are disposed in each of the shaped charge openings. Each shaped charge has a post projecting out of one post opening. The detonating cord is connected to each of the projecting posts.
A switch (100) includes a casing (110) having a bore (112), a piston assembly (130) having a first end (134) and an exposed end (140), a plurality of flanges (138) formed at the first end; an insulating sleeve (136) enclosing the first end, a contact assembly (150) disposed in the casing bore; a pin (170) disposed in the bore; a predetermined quantity of lubricant (210) deposited in the bore; and a spring (190) urging the pin into engagement with the piston assembly. The insulating sleeve and the plurality of flanges are at least partially disposed in the casing bore. The pin has: (i) a first position wherein the pin electrically contacts the piston assembly and is electrically isolated from the contact assembly; and (ii) a second position wherein the pin is electrically isolated from the piston assembly and electrically engages the contact assembly. The predetermined quantity of lubricant may be approximately 0.3 grams.
An apparatus for use with a perforating device includes a section having a window and a detonating cord disposed in a bore of the section. The apparatus may include a detonator configured to generate a high order detonation; and a clip connecting the detonator to the detonating cord. The clip may be formed as a ribbon having a base and a prong extending from opposing sides of the base. The base has an opening for receiving the detonator. The prongs have biased ends to secure the detonating cord against a face of the detonator.
Apparatus for use with a perforating device (10) includes a section (140) having a window (142) and a detonating cord (20) disposed in a bore (144) of the section. The apparatus may include a detonator (102) configured to generate a high order detonation; and a clip (100) connecting the detonator to the detonating cord. The clip may be formed as a ribbon having a base (110) and a prong (114) extending from opposing sides of the base. The base has an opening (112) for receiving the detonator. The prongs have biased ends (116) to secure the detonating cord against a face of the detonator.
A quick connection for coiled tubing run tools eases the assembly and disassembly while deploying such tools. The quick connection utilizes a locking collet and an inner mandrel with locking sleeve system. Such a quick connection does not require perfect alignment between mating pieces.
E21B 17/20 - Flexible or articulated drilling pipes
F16L 37/133 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members using flexible hooks
F16L 37/138 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members using an axially movable sleeve
F16L 37/10 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
A quick connection for coiled tubing run tools eases the assembly and disassembly while deploying such tools. The quick connection utilizes a locking collet (132) and an inner mandrel (160) with locking sleeve system (162). Such a quick connection does not require perfect alignment between mating pieces.
F16L 37/10 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
45.
System and method for a self-contained lifting device
A modular lifting system, including an enclosable lifting device support structure. The enclosable lifting device support structure includes a deployable top, a plurality of lateral sides, a base coupled to the plurality of lateral sides, and a plurality of extension arms. The deployable top is configured to support a lifting device on a first side of the deployable top. The plurality of extension arms are configured to extend and support the deployable top when the deployable top is deployed.
B66C 1/42 - Gripping members engaging only the external or internal surface of the articles
B66C 23/14 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontalLevel-luffing jib cranes with means, e.g. pantograph arrangements, for varying jib configuration
B66C 23/20 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes with supporting couples provided by walls of buildings or like structures
46.
DEVICES AND RELATED METHODS FOR ACTUATING WELLBORE TOOLS WITH A PRESSURIZED GAS
An apparatus for activating a wellbore tool includes a cylinder, a shaft, and a pressure dissipater. The cylinder has a first inner surface defining a smooth bore section and a second inner surface adjacent to the first inner surface. The shaft has a piston section that includes at least one seal forming a fluid seal with the first inner surface when the seal is at a nominal diameter. The pressure dissipater is formed along the second inner surface of the cylinder, the pressure dissipater contacts and physically destabilizes the at least one seal after the at least one seal exits the smooth bore section.
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
47.
Devices and related methods for actuating wellbore tools with a pressurized gas
An apparatus for activating a wellbore tool includes a cylinder, a shaft, and a pressure dissipater. The cylinder has a first inner surface defining a smooth bore section and a second inner surface adjacent to the first inner surface. The shaft has a piston section that includes at least one seal forming a fluid seal with the first inner surface when the seal is at a nominal diameter. The pressure dissipater is formed along the second inner surface of the cylinder, the pressure dissipater contacts and physically destabilizes the at least one seal after the at least one seal exits the smooth bore section.
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
An apparatus for selectively activating a downhole tool by using a Shockwave generated by a detonator assembly may include an outer housing having a bore and an inner housing disposed in the bore of the outer housing. The inner housing may include a chamber having at least one canted surface, an inlet communicating with the chamber and being positioned between the chamber and the detonator assembly, an outlet communicating with the chamber and being positioned between the chamber and the downhole tool, and an energy blocker disposed in the chamber and being freely movable in the chamber as the inner housing changes orientation relative to a vertical datum. The energy blocker axially aligns with the inlet and the outlet when the inner housing is angularly offset less than a specified amount relative to a vertical datum.
An apparatus for activating a wellbore tool may include a first sub, gas transfer sub, and a second sub. The first sub has an igniter that generates a flame output that ignites a power charge. The power charge generates a high pressure gas when ignited by the flame output. The gas transfer sub has a first end receiving a portion of the power charge, a longitudinal bore, and a plurality of flow passages radiating from the longitudinal bore. The flow passages provide fluid communication between the longitudinal bore and the first sub. The second sub includes a shaft having a first end connectable with the gas transfer sub.
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
E21B 23/06 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
An apparatus for detonating an explosive body associated with a downhole tool includes a plurality of firing heads, each firing head including an initiating explosive body generating a high-order input when detonated; and a funnel configured to detonate the explosive body associated with the downhole tool by using a single high-order output. The funnel has a body that includes: a plurality of input openings, each input opening positioned next to an associated initiating explosive body to receive the generated high-order input, a single output opening, and a flow path connecting the plurality of input openings with the single output opening.
An apparatus for activating a wellbore tool may include a first sub having a an igniter disposed in the first chamber, the igniter generating a flame output when ignited and a power charge disposed in the second chamber, the power charge generating a high pressure gas when ignited by the flame output The well tool also includes a gas transfer sub connectable with the first sub, the gas transfer sub having: a first end receiving a portion of the power charge, a longitudinal bore, and a plurality of flow passages radiating from the longitudinal bore, the plurality of flow passages providing fluid communication between the longitudinal bore and the second chamber of the first sub; and a second sub connectable with the gas transfer sub.
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
An apparatus for detonating an explosive body associated with a downhole tool includes a plurality of firing heads, each firing head including an initiating explosive body generating a high-order input when detonated; and a funnel configured to detonate the explosive body associated with the downhole tool by using a single high-order output. The funnel has a body that includes: a plurality of input openings, each input opening positioned next to an associated initiating explosive body to receive the generated high-order input, a single output opening, and a flow path connecting the plurality of input openings with the single output opening.
A perforating gun includes an orienting device retained in a carrier and a charge tube rotatably connected to the orienting device. The orienting device misaligns a center axis of the charge tube with a different second axis such that gravity can cause the charge tube to rotate about the different second axis. The charge tube does not rotate about the center axis of the charge tube while the charge tube rotates about the different second axis.
An interrupter for use with a wellbore tool may include a housing having an interior and a fusible body disposed in the housing interior. The fusible body may be solid below a specified temperature and liquid above the specified temperature. The fusible body communicates a first high-order detonation to a detonator only when liquid. The communicated the first high-order detonation is at a magnitude sufficient to cause the detonator to produce a second high-order detonation.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
A perforating gun includes an orienting device retained in a carrier and a charge tube rotatably connected to the orienting device. The orienting device misaligns a center axis of the charge tube with a different second axis such that gravity can cause the charge tube to rotate about the different second axis. The charge tube does not rotate about the center axis of the charge tube while the charge tube rotates about the different second axis.
An interrupter for use with a wellbore tool may include a housing having an interior and a fusible body disposed in the housing interior. The fusible body may be solid below a specified temperature and liquid above the specified temperature. The fusible body communicates a first high-order detonation to a detonator only when liquid. The communicated the first high-order detonation is at a magnitude sufficient to cause the detonator to produce a second high-order detonation.
An apparatus for selectively isolating a firing head associated with a perforating gun may include an igniter coupled to a firing head, a time delay module coupled to the igniter and generating a pressure pulse after being activated by the igniter, a metering module, and a second firing head. The metering module may be coupled to the time delay module and including a housing having a bore and at least one opening exposed to a wellbore annulus. A piston disposed in the housing bore may have at least one passage. The piston is axially displaced from a first position to a second position by the generated pressure pulse. The second firing head is coupled to the metering module and is in fluid communication with the housing bore. The piston blocks fluid communication from the at least one opening of the housing and the second firing head in a first position and allows fluid communication from the at least one opening of the housing to the second firing head in the second position.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
An apparatus for selectively isolating a firing head associated with a perforating gun may include an igniter coupled to a firing head, a time delay module coupled to the igniter and generating a pressure pulse after being activated by the igniter, a metering module, and a second firing head. The metering module may be coupled to the time delay module and including a housing having a bore and at least one opening exposed to a wellbore annulus. A piston disposed in the housing bore may have at least one passage. The piston is axially displaced from a first position to a second position by the generated pressure pulse. The second firing head is coupled to the metering module and is in fluid communication with the housing bore. The piston blocks fluid communication from the at least one opening of the housing and the second firing head in a first position and allows fluid communication from the at least one opening of the housing to the second firing head in the second position.
An enclosable lifting device support structure (102) includes a deployable top (202), a plurality of lateral sides (204), a base (200) coupled to the plurality of lateral sides, and a plurality of extension arms (304). The deployable top is configured to support a lifting device (118) on a first side of the deployable top. The plurality of extension arms are configured to extend and support the deployable top when the deployable top is deployed.
B66C 23/14 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontalLevel-luffing jib cranes with means, e.g. pantograph arrangements, for varying jib configuration
B66C 23/20 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes with supporting couples provided by walls of buildings or like structures
60.
BI-DIRECTIONAL SHAPED CHARGES FOR PERFORATING A WELLBORE
A shaped charge assembly for perforating a wellbore tubular and a subterranean formation intersected by a wellbore may include a first shaped charge and a second shaped charge disposed on an outer surface of the wellbore tubular. The first shaped charge points radially outward toward the formation, and the second shaped charge points radially inward toward the wellbore tubular.
According to various embodiments, a method may include supplying a gas to an upstream side of a core holder 96 containing a core sample 94, accumulating permeated gas that has flowed through the core sample 94 in a cavity 110 coupled to a downstream side of the core holder 96, measuring an elapsed time during which the permeated gas accumulates in the cavity 110 using a timer 124, measuring a pressure of the permeated gas using a pressure transducer 120 coupled to the cavity 110, and determining a gas permeability of the core sample 94 based at least in part on the pressure of the permeated gas and the elapsed time.
A well isolation includes a radially expandable sealing element that engages an interior wall of the wellbore tubular and a radially expandable expansion cone in telescopic relationship with the sealing element. The expansion cone expands the sealing element and a swage telescopically engages and expands the expansion cone.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
An apparatus and method for perforating a subterranean formation is disclosed. The apparatus includes a tubular carrier; a charge tube disposed in the tubular carrier; and at least one shaped charge mounted in the charge tube which includes a casing, an explosive material and a liner enclosing the explosive material within the casing. An apex portion of the liner has a cross-sectional thickness greater than a cross-sectional thickness of any other portion of the liner. The cross-sectional thickness of the apex portion may be at least fifty percent thicker than a cross-section of a portion adjacent the apex portion. A density of the apex portion may be greater than the density of any other portions of the liner.
In aspects, the present disclosure provides a well isolation apparatus for use in a wellbore. The apparatus may include a radially expandable sealing element configured to engage an interior wall of the wellbore tubular; a radially expandable expansion cone in telescopic relationship with the sealing element, the expansion cone being configured to expand the sealing element; and a swage configured to telescopically engage and expand the expansion cone. The above-recited examples of features of the disclosure have been summarized rather broadly in order that the detailed description thereof that follows may be better understood, and in order that the contributions to the art may be appreciated.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
65.
SYSTEM AND METHOD FOR ENHANCED WELLBORE PERFORATIONS
An apparatus for perforating a subterranean formation may include a casing, an energetic material, a liner, and an acid-generating material. The casing may have a slotted end configured to receive a detonator cord, and an open end. The energetic material may be disposed in the open end and in ballistic. The liner may enclose the open end, and the liner may include an acid-generating material that is configured to form an acid upon detonation of the explosive material.
According to various embodiments, a method 90 may include measuring a first capacitance of a sample at a first frequency using a measurement system 40, measuring a second capacitance of the sample at a second frequency using the measurement system 40, calculating a ratio of the first capacitance to the second capacitance 94, and determining a formation water resistivity or conductivity of the sample using the ratio 96.
G01V 3/24 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current using AC
67.
Systems and methods for the determination of formation water resistivity and conductivity
According to various embodiments, a method may include measuring a first capacitance of a sample at a first frequency using a measurement system, measuring a second capacitance of the sample at a second frequency using the measurement system, calculating a ratio of the first capacitance to the second capacitance, and determining a formation water resistivity or conductivity of the sample using the ratio.
G01V 3/24 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current using AC
An apparatus and a method for cutting a wellbore tubular are described herein. The apparatus and the method may include an upper section and a lower section mating at a juncture plane defined by a plane transverse to the longitudinal axis of the wellbore tubular. Each section may include a support plate having a passage, a liner positioned adjacent to the support plate, and an energetic material disposed between the support plate and the liner. An initiator having a shaft may be positioned in the passages of the upper section and the lower section.
E21B 43/263 - Methods for stimulating production by forming crevices or fractures using explosives
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
An apparatus and a method for cutting a wellbore tubular may include an upper section and a lower section mating at a juncture plane defined by a plane transverse to the longitudinal axis of the wellbore tubular. Each section may include a support plate having a passage, a liner positioned adjacent to the support plate, and an energetic material disposed between the support plate and the liner. An initiator having a shaft may be positioned in the passages of the upper section and the lower section.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
A perforating gun includes a charge tube having shaped charges affixed thereto. Each shaped charge includes a radially outward pointing post adapted to receive a detonator cord. A retention member installed on the post provides a compressive force that energetically couples the detonator cord to the post. The radially outermost portion of the retention member is radially flush with or radially recessed relative to the radially outermost portion of each post. In one embodiment, the retention member has a rounded medial portion, a central opening and a pair of locking tabs that point radially inward to the central opening. Each post may include a slot for receiving the detonator cord and a circumferential groove that is adapted to receive the locking tabs.
A perforating gun train for perforating two or more zones of interest includes two or more gun sets made up of guns, one or more activators, and other associated equipment. An illustrative apparatus may include a first perforating gun; an activator responsive to the firing of the first perforating gun and a fuse element detonated by the activator; and a second perforating gun that is fired by the fuse element. An illustrative method for perforating a subterranean formation may include forming a perforating gun train using at least a first perforating gun and a second perforating gun; and energetically coupling the first perforating gun and the second perforating gun with an activator.
A device for perforating and fracturing a formation in a single trip includes shaped charges and a volume of a gas generator. When activated by detonation of the shaped charges, the gas generator forms a high-pressure gas, which includes steam, that expands to stress and fracture the formation. Suitable gas generating materials include hydrates and hydroxides. Other materials that can be employed with the gas generator include oxidizers and material such as metals that increase the available heat for the activation of the gas generator.
A perforating gun train for perforating two or more zones of interest includes two or more gun sets made up of guns, one or more activators, and other associated equipment. An illustrative apparatus may include a first perforating gun; an activator responsive to the firing of the first perforating gun and a fuse element detonated by the activator; and a second perforating gun that is fired by the fuse element. An illustrative method for perforating a subterranean formation may include forming a perforating gun train using at least a first perforating gun and a second perforating gun; and energetically coupling the first perforating gun and the second perforating gun with an activator.
An apparatus and method for perforating a subterranean formation is disclosed. The apparatus includes a tubular carrier; a charge tube disposed in the tubular carrier; and at least one shaped charge mounted in the charge tube which includes a casing, an explosive material and a liner enclosing the explosive material within the casing. An apex portion of the liner has a cross-sectional thickness greater than a cross-sectional thickness of any other portion of the liner. The cross-sectional thickness of the apex portion may be at least fifty percent thicker than a cross-section of a portion adjacent the apex portion. A density of the apex portion may be greater than the density of any other portions of the liner.
An apparatus and method for perforating a subterranean formation is disclosed. The apparatus includes a tubular carrier; a charge tube disposed in the tubular carrier; and at least one shaped charge mounted in the charge tube which includes a casing, an explosive material and a liner enclosing the explosive material within the casing. An apex portion of the liner has a cross-sectional thickness greater than a cross-sectional thickness of any other portion of the liner. The cross-sectional thickness of the apex portion may be at least fifty percent thicker than a cross-section of a portion adjacent the apex portion. A density of the apex portion may be greater than the density of any other portions of the liner.
A method for perforating a subterranean formation includes positioning a shaped charge and a reactant composite material in a carrier; positioning the carrier in the wellbore; detonating the shaped charge; and disintegrating the reactant composite material using a shock generated by the detonated shaped charge. The method may also include initiating a first deflagration by using carbon and heat resulting from the detonation of the shaped charge and an oxygen component of the disintegrated reactant composite material. A system for performing the method may include a carrier, a shaped charge positioned in the carrier; and a reactant composite material positioned in the carrier. The reactant composite material may be configured to disintegrate upon detonation of the shaped charge.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
77.
System and method for enhanced wellbore perforations
A method for perforating a subterranean formation includes positioning a shaped charge and a reactant composite material in a carrier; positioning the carrier in the wellbore; detonating the shaped charge; and disintegrating the reactant composite material using a shock generated by the detonated shaped charge. The method may also include initiating a first deflagration by using carbon and heat resulting from the detonation of the shaped charge and an oxygen component of the disintegrated reactant composite material. A system for performing the method may include a carrier, a shaped charge positioned in the carrier; and a reactant composite material positioned in the carrier. The reactant composite material may be configured to disintegrate upon detonation of the shaped charge.
An apparatus for controlling a wellbore energy train may include a firing head, a detonator cord associated with the firing head, and a plurality of serially aligned modules. Each module may include an enclosure, a first portion of a high order detonation material positioned at one end of the enclosure, a second portion of the high order detonation material positioned at the other end of the enclosure, and a low order detonation material interposed between the first portion and the second portion. A method for controlling an energy train generated in a wellbore may include serially aligning a plurality of the modules along the path of the energy train, and detonating at least one of the plurality of modules by detonating a detonator cord.
An apparatus for providing zonal isolation in a wellbore includes a plurality of interlocking sealing elements having anchor elements at the opposing ends. Each anchor element sealingly engages a wellbore tubular whereas the interlocking sealing elements do not engage any portion of wellbore therebetween. In one exemplary application utilizes a wellhead and lubricator positioned over a wellbore under pressure and a conveyance device for conveying equipment into the wellhead. The first anchor, the second anchor and the plurality of interlocking sealing elements are separately conveyed into the wellbore with the conveyance device and sequentially assembled in the wellbore to provide zonal isolation.
A perforating system has a perforating module comprising a unitary body of explosive. The explosive is contained within a non-explosive casing, or liner, having formed indentations and a cover thereover. The indentations, which will transform into explosively formed penetrators (EFP's) upon detonation, have a perimeter shape that allows for improved packing density, e.g., a hexagonal perimeter, which results in relatively little 'dead space' wherein no perforating penetrators are generated. In operation, the module provides a relatively dense shot pattern and substantially reduced amount of post-detonation debris that could clog the perforations and/or require remedial clean-up or repeat perforation.
A carrier tube for use in a wellbore perforating gun has inner and outer layers selected from materials of different, comparative physical properties. The inner layer has a higher compressive strength, and the outer layer has a higher yield strength. The inner layer enables the tube to withstand wellbore compressive pressures, which may, depending upon the material selected, include relatively high pressures, while the outer layer contains any fragments of the inner layer that result upon detonation of the gun. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
A carrier tube for use in a wellbore perforating gun has inner and outer layers selected from materials of different, comparative physical properties. The inner layer has a higher compressive strength, and the outer layer has a higher yield strength. The inner layer enables the tube to withstand wellbore compressive pressures, which may, depending upon the material selected, include relatively high pressures, while the outer layer contains any fragments of the inner layer that result upon detonation of the gun. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
An apparatus for providing zonal isolation in a wellbore includes a plurality of interlocking sealing elements having anchor elements at the opposing ends. Each anchor element sealingly engages a wellbore tubular whereas the interlocking sealing elements do not engage any portion of wellbore therebetween. In one exemplary application utilizes a wellhead and lubricator positioned over a wellbore under pressure and a conveyance device for conveying equipment into the wellhead. The first anchor, the second anchor and the plurality of interlocking sealing elements are separately conveyed into the wellbore with the conveyance device and sequentially assembled in the wellbore to provide zonal isolation.
The present invention provides systems, methods and devices for selectively firing a gun train formed of a plurality of guns. Conventionally, the guns each include a detonator assembly that detonates upon receiving a firing signal transmitted by a surface source. In one embodiment of the present invention, an operator provided in the gun train selectively couples one or more of the guns to the signal transmission medium. The operator has an safe state wherein the operator isolates the gun from the firing signal and an armed state wherein the operator enable the transmission of the firing signal to the gun. A control signal is used to move operator between the safe state and the armed state. In some embodiments, two or more guns are each provided with a separate operator. In other embodiments, one operator can selectively engage two or more guns.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
85.
Apparatus and method for selective actuation of downhole tools
The present invention provides systems, methods and devices for selectively firing a gun train formed of a plurality of guns. Conventionally, the guns each include a detonator assembly that detonates upon receiving a firing signal transmitted by a surface source. In one embodiment of the present invention, an operator provided in the gun train selectively couples one or more of the guns to the signal transmission medium. The operator has an safe state wherein the operator isolates the gun from the firing signal and an armed state wherein the operator enable the transmission of the firing signal to the gun. A control signal is used to move operator between the safe state and the armed state. In some embodiments, two or more guns are each provided with a separate operator. In other embodiments, one operator can selectively engage two or more guns.
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
86.
SYSTEM AND METHOD FOR PERFORMING MULTIPLE DOWNHOLE OPERATIONS
A device for perforating and fracturing a formation in a single trip includes shaped charges and a volume of a gas generator. When activated by detonation of the shaped charges, the gas generator forms a high-pressure gas, which includes steam, that expands to stress and fracture the formation. Suitable gas generating materials include hydrates and hydroxides. Other materials that can be employed with the gas generator include oxidizers and material such as metals that increase the available heat for the activation of the gas generator.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
A device for perforating and fracturing a formation in a single trip includes shaped charges and a volume of a gas generator. When activated by detonation of the shaped charges, the gas generator forms a high-pressure gas, which includes steam, that expands to stress and fracture the formation. Suitable gas generating materials include hydrates and hydroxides. Other materials that can be employed with the gas generator include oxidizers and material such as metals that increase the available heat for the activation of the gas generator.
In connection with thermal recovery projects, a system determines temperature gradients for a heat affected zone associated with a subterranean hydrocarbon reservoir. An exemplary system includes a plurality of temperature sensors distributed in the wellbore at least partially along the heat affected zone. A downhole processor positioned proximate and substantially outside of the heat affected zone receives and digitizes the temperature measurements. A data link such as a data cable coupled to the downhole processor conveys the temperature measurements to a surface interface.
A perforating gun train for perforating two or more zones of interest includes two or more gun sets made up of guns, detonators, and other associated equipment. In one embodiment, the gun sets are connected with connectors that can convey activation signals between the gun sets. The firing of a gun set creates this conveyed activation signal either directly or indirectly. In one arrangement, a surface signal initiates the firing of a first gun set while subsequent firings are initiated by firing of the gun sets making up the gun train. An exemplary connector is at least temporarily filled with signal conveyance medium adapted to transmit activation signals between the gun sets. In one embodiment, the signal conveyance medium is a liquid. The liquid can be added to the connector either at the surface or while in the wellbore.
Core Laboratories LP, a Delaware Limited Partnership (USA)
Inventor
Ferguson, Royce B.
Hampton, Tom
Abstract
A method for determining the extent of recovery of materials injected or otherwise introduced into oil wells or subsurface formations is practiced using a portable device. The portable device can also be used to determiner the occurrence of a predetermined condition in an oil well such as water break through in a production zone, or the opening or closing of a sliding sleeve. When, for example, water breakthrough is detected, the zone producing too much water can be plugged, using, for example, a flow-through bridge plug, if there are other producing zones further downhole.
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
In one aspect, the present invention provides a sealing apparatus for use in a tubular member. In one embodiment, the sealing apparatus includes an expandable sleeve and an expandable a toroidal/ring-shaped seal. The seal seats within a circumferential saddle or groove formed in the sleeve. An exemplary seal has an enlarged diameter portion and presents a radially outward sealing surface. During expansion, the enlarged diameter portion is compressed against the tubular member but, at least initially, the remainder of the sealing surface is not compressed. Thus, the pressure associated with the compression is focused on the limited contact area between the seal and the tubular. Continued expansion can increase the contact pressure and/or the amount of contact area. In one arrangement, the seal is configured to provide a gas tight seal.
09 - Scientific and electric apparatus and instruments
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
[ COMPUTER PROGRAMS AND MANUALS FOR COMPUTER PROGRAMS FOR DESIGN OF FRACTURING OPERATIONS IN OIL AND GAS WELL OPERATIONS ] CONSULTATION ON USE OF PROPPANTS FOR THE FRACTURING PROCESSES IN OIL AND GAS PRODUCTION OIL AND GAS WELL FRACTURING SERVICES, NAMELY, TESTING SERVICES TO ENHANCE THE FRACTURING PROCESSESS TO INCREASE OIL AND GAS PRODUCTION; CONSULTATION ON THE USE OF PROPPANTS FOR THE FRACTURING PROCESSES IN OIL AND GAS FRACTURE DESIGN; DESIGN OF OIL AND GAS WELL FRACTURING PROCESSES IN OIL AND GAS WELL PRODUCTION OPERATIONS; AND ROCK TESTING FOR THE FRACTURING PROCESSES
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Explosive equipment for completing oil and gas wells, namely, perforating guns and parts thereof, oil tools pipe recovery equipment, namely, explosive cutters, namely, tubing cutters, casing cutters, shot splitting and severing cutters; and well completion equipment, namely, perforating casing patches and bridge plugs RENTAL OF OIL AND GAS WELL COMPLETION EQUIPMENT [OIL AND GAS WELL TREATMENT, OIL AND GAS WELL PERFORATION, OIL AND GAS WELL FRACTURING] [OIL AND GAS WELL LOGGING]
42 - Scientific, technological and industrial services, research and design
Goods & Services
ENGINEERING AND CONSULTING SERVICES, namely, CORE SAMPLING AND ANALYSIS, ROCK CATALOGUING, LOGGING OF MUD AND CUTTINGS, FLUID SAMPLING AND ANALYSIS, MONITORING DOWNHOLE AND RESERVOIR, RESERVOIR MANAGEMENT, RESERVOIR CHARACTERIZATION, RESERVOIR MAXIMIZATION, COORDINATION OF DOWNHOLE DATA AND PROCESSING SEISMIC DATA; SURVEYING AND ENGINEERING; SEISMIC SIGNAL PROCESSING SERVICES, namely, [COMPUTER PROCESSING OF SEISMIC DATA USING TIME-LAPSE SEISMIC SIGNAL PROCESSING SERVICES, namely, ]COMPUTER PROCESSING OF SEISMIC DATA USING TIME-LAPSE THREE DIMENSIONAL IMAGING AND FOUR DIMENSIONAL IMAGING SEISMIC METHODS FOR RESERVOIR MANAGEMENT; DEVELOPMENT OF ANALYTICAL EQUIPMENT; TECHNICAL CONSULTATION AND RESEARCH IN THE FIELD OF RESERVOIR ENGINEERING, SEISMIC IMAGING, WELL COMPLETION AND STIMULATION, GEOLOGY, GEOPHYSICS, GEOCHEMISTRY, GEOSCIENCE AND WATER TECHNOLOGY; CHEMICAL ANALYSIS; ANALYSIS OF OILFIELD AND OIL WELLS AND DOWNHOLES; TESTING AND ANALYSIS OF OIL WELLS AND DOWNHOLES
42 - Scientific, technological and industrial services, research and design
Goods & Services
ENGINEERING SERVICES, NAMELY, CORE SAMPLING AND ANALYSIS, ROCK CATALOGUING, LOGGING OF MUD AND CUTTINGS, FLUID SAMPLING AND ANALYSIS, MONITORING DOWNHOLE AND RESERVOIR, RESERVOIR MANAGEMENT, RESERVOIR CHARACTERIZATION, RESERVOIR MAXIMIZATION, COORDINATION OF DOWNHOLE DATA AND PROCESSING SEISMIC DATA; SURVEYING AND ENGINEERING; SEISMIC SIGNAL PROCESSING SERVICES, NAMELY, COMPUTER PROCESSING OF SEISMIC DATA USING TIME-LAPSE THREE DIMENSIONAL IMAGING AND FOUR DIMENSIONAL IMAGING SEISMIC METHODS FOR RESERVOIR MANAGEMENT; DEVELOPMENT OF ANALYTICAL EQUIPMENT; TECHNICAL CONSULTATION AND RESEARCH IN THE FIELD OF RESERVOIR ENGINEERING, SEISMIC IMAGING, WELL COMPLETION AND STIMULATION, GEOLOGY, GEOPHYSICS, GEOCHEMISTRY, GEOSCIENCE AND WATER TECHNOLOGY; CHEMICAL ANALYSIS; ANALYSIS OF OILFIELD AND OIL WELLS AND DOWNHOLES; TESTING AND ANALYSIS OF OIL WELLS AND DOWNHOLES
42 - Scientific, technological and industrial services, research and design
Goods & Services
ENGINEERING SERVICES, NAMELY, CORE SAMPLING AND ANALYSIS, ROCK CATALOGUING, LOGGING OF MUD AND CUTTINGS, FLUID SAMPLING AND ANALYSIS, MONITORING DOWNHOLE AND RESERVOIR, RESERVOIR MANAGEMENT, RESERVOIR CHARACTERIZATION, RESERVOIR MAXIMIZATION, COORDINATION OF DOWNHOLE DATA AND PROCESSING SEISMIC DATA; SURVEYING AND ENGINEERING; SEISMIC SIGNAL PROCESSING SERVICES, NAMELY, COMPUTER PROCESSING OF SEISMIC DATA USING TIME-LAPSE THREE DIMENSIONAL IMAGING AND FOUR DIMENSIONAL IMAGING SEISMIC METHODS FOR RESERVOIR MANAGEMENT; DEVELOPMENT OF ANALYTICAL EQUIPMENT; TECHNICAL CONSULTATION AND RESEARCH IN THE FIELD OF RESERVOIR ENGINEERING, SEISMIC IMAGING, WELL COMPLETION AND STIMULATION, GEOLOGY, GEOPHYSICS, GEOCHEMISTRY, GEOSCIENCE AND WATER TECHNOLOGY; CHEMICAL ANALYSIS; ANALYSIS OF OIL FIELD AND OIL WELLS AND DOWNHOLES; TESTING AND ANALYSIS OF OIL WELLS AND DOWNHOLES
42 - Scientific, technological and industrial services, research and design
Goods & Services
ENGINEERING SERVICES, NAMELY, CORE SAMPLING AND ANALYSIS, ROCK CATALOGUING, LOGGING OF MUD AND CUTTINGS, FLUID SAMPLING AND ANALYSIS, MONITORING DOWNHOLE AND RESERVOIR, RESERVOIR MANAGEMENT, RESERVOIR CHARACTERIZATION, RESERVOIR MAXIMIZATION, COORDINATION OF DOWNHOLE DATA [ AND PROCESSING SEISMIC DATA ] ; SURVEYING AND ENGINEERING; [ SEISMIC SIGNAL PROCESSING SERVICES, NAMELY, COMPUTER PROCESSING OF SEISMIC DATA USING TIME-LAPSE THREE DIMENSIONAL IMAGING AND FOUR DIMENSIONAL IMAGING SEISMIC METHODS FOR RESERVOIR MANAGEMENT; ] DEVELOPMENT OF ANALYTICAL EQUIPMENT; TECHNICAL CONSULTATION AND RESEARCH IN THE FIELD OF RESERVOIR ENGINEERING, [ SEISMIC IMAGING, ] WELL COMPLETION AND STIMULATION, GEOLOGY, GEOPHYSICS, GEOCHEMISTRY, GEOSCIENCE AND WATER TECHNOLOGY; CHEMICAL ANALYSIS; ANALYSIS OF OILFIELD AND OIL WELLS AND DOWNHOLES; TESTING AND ANALYSIS OF OIL WELLS AND DOWNHOLES
