A drill rod and core tube handler assembly for use with a drill rig including an elongate mast, a drill head, and a drill string, including a drill rod traversing assembly with elongate rail mounted to the mast, a carriage slidably secured to the elongate rail, a pivot arm having a proximal end pivotably secured to the carriage about a first pivot axis, and a rod holder assembly pivotably secured to a distal end of the pivot arm about a second pivot axis, the rod holder assembly including a body portion and a pair of opposed rollers, the pair of opposed rollers being configured to both grip a drill rod section therebetween and move the drill rod section axially along a longitudinal axis of the drill rod section.
E21B 19/087 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods by means of a swinging arm
E21B 15/04 - Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
E21B 19/15 - Racking of rods in horizontal positionHandling between horizontal and vertical position
E21B 19/20 - Combined feeding from rack and connecting, e.g. automatically
E21B 19/14 - Racks, ramps, troughs or bins, for holding the lengths of rod singly or connectedHandling between storage place and borehole
E21B 15/00 - Supports for the drilling machine, e.g. derricks or masts
E21B 19/00 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrickApparatus for feeding the rods or cables
A drill string component having a central axis can comprise an outer tube having a pin end and a box end. The outer tube can define an inner bore. An inner tube can be disposed within the inner bore of the outer tube. The inner tube can defines an inner bore. A plurality of rolling elements can be disposed between the outer tube and the inner tube. The wall thickness of each of the outer tube and the inner tube can be less than ¼ inch.
E21B 17/18 - Pipes provided with plural fluid passages
E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
E21B 21/12 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
Devices, systems, and methods for anchoring a drill rig at a borehole are disclosed. An anchor assembly includes a rod mountable within a borehole, an adapter positioned on an end of the rod, an anchor face unit having a plurality of drill rig assembly mounting features, and an anchor clamp mounted to the anchor face unit. The anchor clamp has a plurality of jaws movable from an engagement position wherein said plurality of jaws are positioned within an adapter groove to a disengagement position wherein said plurality of jaws are positioned away from said adapter groove.
Devices, systems, and methods for retrieving inner tubes following core sampling are disclosed. Exemplary systems include a drill rig having a drilling axis. The drill rig can have a mast having a longitudinal axis and opposed first and second ends, the first end of the mast being configured for positioning proximate a drilling formation. A drill head can be configured to impart rotation to a drill string. The drill head can be configured for movement about and between a first position in which the drilling axis extends through the drill head; and a second position in which drill head is spaced from the drilling axis.
E21B 25/02 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
Drill string components having at least two threads extending around a body. The leading end of each thread can have a configuration having increased strength and resistance to jamming and cross-threading. In particular, the leading end of each thread can comprise a planar surface normal to the body. The leading end of each thread can provide an abrupt transition to full thread depth that helps reduce or eliminate cross-threading and can be oriented at an angle relative to the axis of the drill string component. Each thread can further provide at least one of a variable thread width and a variable thread pitch configured to create an axial progressive fit. Each thread can also provide a cylindrical thread root and a thread crest that circumscribes a frusta-cone over at least a portion of the axial length of the threads configured to create a radial progressive fit.
A kickout tray assembly can be used with exploratory drill rigs. The assembly may include a first pivotable structure mountable on a mast of a drill rig. The first pivotable structure may pivot toward and away from the mast about a first axis oriented parallel to the mast. A second pivotable structure coupled to the first pivotable structure may be pivotable toward and away from the first pivotable stmcture about a second axis parallel to the first axis. A tray, including a first end coupled to the second pivotable stmcture and a free second end, may pivot toward and away from the second pivotable stmcture about a third axis transverse to the second axis proximate to the first end. The tray may be configured to receive and move a core tube toward and awav from the mast.
A method includes drilling a first bore into a formation to a first depth, the bore having a bore wall and a first diameter that is sufficient to receive a casing pipe. A casing pipe is driven into the drill bore, the casing pipe having a binder on an exterior surface of the casing pipe that is configured to secure the casing pipe to the bore wall, the casing pipe being secured to an anchoring nut at a proximal end. The anchoring nut includes a gripping feature. An anchoring clamp of a drill rig is engaged with the gripping feature of the anchoring nut to thereby anchor the drill rig to the formation. The anchoring clamp includes a plurality of jaws that are movable toward and away from a central axis.
E21B 7/20 - Driving or forcing casings or pipes into boreholes, e.g. sinkingSimultaneously drilling and casing boreholes
E21B 10/26 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers
E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
E21B 19/14 - Racks, ramps, troughs or bins, for holding the lengths of rod singly or connectedHandling between storage place and borehole
E21B 19/16 - Connecting or disconnecting pipe couplings or joints
E21B 19/20 - Combined feeding from rack and connecting, e.g. automatically
E21B 21/01 - Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
E21B 31/18 - Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
9.
Drill Rods Having Stabilizers, And Systems And Methods Comprising Same
A drill rod having a central axis can comprise a hollow, elongate body having a box end portion defining a first end of the elongate body and an opposing pin end portion. The elongate body can have an outer surface that defines a circumference of the elongate body. A plurality of stabilizing projections can extend outwardly from the circumference of the elongate body. The plurality of stabilizing projections can be spaced from the first end by at least 40 cm. The plurality of stabilizing projections can be spaced about the circumference of the elongate body.
A drill rod having a central axis can comprise a hollow, elongate body having a box end portion defining a first end of the elongate body and an opposing pin end portion. The elongate body can have an outer surface that defines a circumference of the elongate body. A plurality of stabilizing projections can extend outwardly from the circumference of the elongate body. The plurality of stabilizing projections can be spaced from the first end by at least 40 cm. The plurality of stabilizing projections can be spaced about the circumference of the elongate body.
A gripping apparatus includes an inner sleeve having an outer surface and an inner bore. The inner sleeve defines at least one radial opening that extends from the outer surface to the inner bore. The inner sleeve is at least partly received within the interior space of an outer sleeve. At least one rolling locking element is positioned within the at least one radial opening of the inner sleeve. The inner surface of the outer sleeve is shaped so that rotation of the outer sleeve relative to the inner sleeve drives the at least one rolling locking element radially inwardly into the inner bore of the inner sleeve, and axial movement of the outer sleeve relative to the inner sleeve in an axial direction opposite drives the at least one rolling locking element radially inwardly into the inner bore of the inner sleeve.
F16B 2/16 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using rollers or balls
A drill bit having a longitudinal axis extending through a center of the drill bit is disclosed. A plane including the longitudinal axis of the drill bit bisects the drill bit and divides the drill bit into first and second sides. The drill bit has a shank defining an interior space and a crown coupled to the shank. The crown has a circumferential outer surface, a cutting face, and at least one bore that extends through the crown from the interior space of the shank to the cutting face. Each bore has an outlet defined by the cutting face. The cutting face defines a face channel that extends to the circumferential outer surface of the crown. The face channel has an outlet where the face channel meets the circumferential outer surface of the crown. The longitudinal axis intersects the face channel. The majority of the perimeter of the outlet of each bore is positioned on the first side of the drill bit. The outlet of the face channel is on the second side of the drill bit.
A drill bit having a longitudinal axis extending through a center of the drill bit is disclosed. A plane including the longitudinal axis of the drill bit bisects the drill bit and divides the drill bit into first and second sides. The drill bit has a shank defining an interior space and a crown coupled to the shank. The crown has a circumferential outer surface, a cutting face, and at least one bore that extends through the crown from the interior space of the shank to the cutting face. Each bore has an outlet defined by the cutting face. The cutting face defines a face channel that extends to the circumferential outer surface of the crown. The face channel has an outlet where the face channel meets the circumferential outer surface of the crown. The longitudinal axis intersects the face channel. The majority of the perimeter of the outlet of each bore is positioned on the first side of the drill bit. The outlet of the face channel is on the second side of the drill bit.
Devices, systems, and methods for identifying, tracking, evaluating, and/or conditioning drill bits (e.g., rock drill bits). A computing device can be configured to receive and store data associated with the drill bit. The system can include an imaging device that is in communication with the computing device and configured to acquire at least one image of the drill bit. The computing device and/or a remote computing device in communication with the computing device can store informational profiles associated with respective drill bits, and the imaging device can provide data/information that is used to update or modify the drill bit informational profiles stored by the computing device and/or remote computing device. The drill bit informational profiles can include information that is used to determine reconditioning (e.g., sharpening) steps that will prepare the drill bits for further usage.
A drill bit for cutting a hole in a formation can have a longitudinal axis extending along a center of the drill bit. The drill bit can comprise a crown comprising at least one crown portion having a cutting face. A plurality of wear-resistant members can be embedded in the crown of the drill bit, wherein at least one wear-resistant member of the plurality of wear-resistant members extends to within 0.1 inches of the cutting face of the at least one crown portion.
E21B 10/54 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
E21B 10/60 - Drill bits characterised by conduits or nozzles for drilling fluids
E21B 10/43 - Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
A system for detecting gold in a sample using X-ray fluorescence can comprise an X-ray device having an X-ray tube assembly. The X-ray tube assembly can comprise a target material. The target material can comprise uranium (e.g., U-238). The X-ray device is configured to emit X-rays at a core or rock sample.
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
G01N 23/2204 - Specimen supports thereforSample conveying means therefor
A method includes advancing a drill bit into a formation to form core sample pieces. The drill bit has a central axis and includes a crown defining an inner operative circumference. The crown is configured to form a core sample. A core receiving space is configured to receive the core sample as the drill bit is advanced into the formation. A base surface is spaced from the cutting face along the central axis of the drill bit. The base surface is configured to break apart portions of the core sample to form core sample pieces. The method can further include associating the core sample pieces with respective depths at which the core sample pieces were separated from the formation.
E21B 10/60 - Drill bits characterised by conduits or nozzles for drilling fluids
E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
An overshot assembly can include a distal body portion. The distal body portion can have a central axis, a length along the central axis, and an outer surface. An outer surface of the distal body portion can define, along at least a portion of the length, at least one drill string engagement portion having a first radial distance from the central axis of the distal body portion. The drill string engagement portion(s) can be configured to bias against and slide along an inner surface of a drill string. At least one recessed portion can be inwardly spaced from said first radial distance from the central axis. The recessed portion(s) can each be configured to cooperate with the inner surface of the drill string to define a respective flow path along the length of the distal body portion. A plane that is perpendicular to the central axis of the distal body portion can extend through each drill string engagement portion of the at least one drill string engagement portion and each portion of the at least one recessed portion.
A system can comprise a drill string sub that is configured to couple to a drill rod of a drill string, wherein the drill string sub defines a shoulder and at least one through hole. A plug assembly can be receivable with a bore of the drill. The plug assembly can be releasably coupled to the drill string sub. When decoupled from the drill string, the plug assembly can be configured to be pumped into the drill string. The plug assembly can comprise a distal subassembly that defines a receiver that is configured engage a reverse circulation overshot. A proximal subassembly can be coupled to the distal subassembly. The proximal subassembly can comprise a brake apparatus that is configured to inhibit proximal movement of the plug assembly.
E21B 25/02 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
A drill bit having a central axis can comprise a shank defining an inner bore and a crown having a cutting face. The crown can define an outer operative circumference. The crown can comprise a core-receiving slot in communication with the inner bore of the shank. One or more peripheral slots can be in communication with the inner bore of the shank. The crown can comprise one or more face channels that are in communication with the core-receiving slot and a respective peripheral slot. A base portion can be positioned within the core-receiving slot. The base portion can define a breaking surface. The peripheral slots can be configured to receive fluid moving in a distal direction toward the cutting face of the crown. The face channels can be configured to deliver fluid from the respective peripheral slot to the core-receiving slot.
Provided herein are methods and systems for improved core sample analysis. At least one image of a core sample may be analyzed to determine structural data associated with the core sample (e.g., attributes of the core sample). A machine learning model may analyze the at least one image and determine one or more attributes associated with the core sample. The machine learning model may generate a segmentation mask. An output image may be generated. A user may interact with the output image and provide one or more user edits. The one or more user edits may be provided to the machine learning model for optimization thereof.
Disclosed herein, in one aspect, is a system for determining depth within a borehole. The system can comprise a downhole device comprising at least one inertial sensor, at least one processor, and a memory in communication with the at least one processor. The memory can comprise instructions thereon that, when executed, cause the processor to: receive data from the at least one inertial sensor and store the data from the at least one inertial sensor in the memory with respective correlated time values. The system can further comprise a drill rig comprising at least one depth measurement device. The at least one depth measurement device can comprises a drill string position sensor that is configured to produce a measurement indicative of a length of a portion of a drill string removed from a borehole or a wireline sensor that is configured to determine a length of deployed wireline cable.
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 47/09 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes
E21B 47/26 - Storing data down-hole, e.g. in a memory or on a record carrier
G01B 21/18 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
G01B 7/04 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01B 7/26 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring depth
G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
G01P 15/02 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces
G01B 7/02 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness
23.
MODULAR CONTROL UNIT AND SYSTEMS COMPRISING THE SAME
A control unit can comprise a housing and circuitry disposed within the housing. The circuitry can comprise a communications module, a memory, and a processor in communication with the memory and the communications module. A power source can be disposed within the housing. An input port that is configured to mate with a complementary output of a sensor unit that is external to the housing. The input port can be in communication with the circuitry. The input port can be configured to interface with the sensor unit.
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
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
G01D 9/02 - Producing one or more recordings of the values of a single variable
G01V 1/44 - SeismologySeismic or acoustic prospecting or detecting specially adapted for well-logging using generators and receivers in the same well
A core sampling tool having a core barrel and a core barrel head assembly coupled to a proximal end of the core barrel. The core barrel head assembly does not include a grease port or a grease fitting. The core barrel head assembly has a spindle and at least one bearing that rotationally engages the spindle. Each of the bearings is a self-lubricating bearing, such as, for example, a solid oil bearing.
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores
E21B 25/02 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
E21B 25/04 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe the core receiver having a core forming cutting edge or element, e.g. punch type core barrels
E21B 34/08 - Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
E21B 44/06 - Automatic control of the tool feed in response to the flow or pressure of the motive fluid of the drive
E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
(1) Earth drilling tools and equipment for rotary, vibratory and percussive drilling, namely, rock drills, drilling rods, drill bits, couplings, shanks, and rock drilling inserts for use in earth and rock formations.
Earth drilling tools and equipment for rotary, vibratory and percussive drilling, namely, rock drills, drilling rods, drill bits, couplings, shanks, and rock drilling inserts for use in earth and rock formations
A drill bit comprises a first and a second body received within the first body. Each of the first body and second body has a respective crown, each crown having an inner and an outer operative circumference. The outer operative circumference of the second body and the inner operative circumference of the first body can define a first volume that can receive a tubular core sample. The second body can define a break surface that breaks the tubular core sample into core pieces. The drill bit can be employed in a borehole with a reverse circulation system that pumps fluid around an outer surface of the bit, and returning fluid can carry the core pieces out of the borehole.
E21B 10/60 - Drill bits characterised by conduits or nozzles for drilling fluids
E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
Devices, systems, and methods for retrieving inner tubes following core sampling are disclosed. Exemplary systems include a drill rig having a drilling axis. The drill rig can have a mast having a longitudinal axis and opposed first and second ends, the first end of the mast being configured for positioning proximate a drilling formation. A drill head can be configured to impart rotation to a drill string. The drill head can be configured for movement about and between a first position in which the drilling axis extends through the drill head; and a second position in which drill head is spaced from the drilling axis.
E21B 15/00 - Supports for the drilling machine, e.g. derricks or masts
E21B 19/08 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods
E21B 19/084 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
E21B 19/15 - Racking of rods in horizontal positionHandling between horizontal and vertical position
E21B 19/22 - Handling reeled pipe or rod units, e.g. flexible drilling pipes
E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
Devices, systems, and methods for anchoring a drill rig at a borehole are disclosed. An anchor assembly includes a rod mountable within a borehole, an adapter positioned on an end of the rod, an anchor face unit having a plurality of drill rig assembly mounting features, and an anchor clamp mounted to the anchor face unit. The anchor clamp has a plurality of jaws movable from an engagement position wherein said plurality of jaws are positioned within an adapter groove to a disengagement position wherein said plurality of jaws are positioned away from said adapter groove.
A drill bit for cutting a hole in a formation can have a longitudinal axis extending along a center of the drill bit. The drill bit can comprise a crown comprising at least one crown portion having a cutting face. A plurality of wear-resistant members can be embedded in the crown of the drill bit, wherein at least one wear-resistant member of the plurality of wear-resistant members extends to within 0.1 inches of the cutting face of the at least one crown portion.
E21B 10/43 - Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
E21B 10/54 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
A drill rig having a longitudinal drilling axis, a front portion, and a rear portion can comprise a feedframe aligned with the longitudinal drilling axis, a first head assembly coupled to the feedframe and configured to rotate a drill string, and a rod holder proximate the front portion of the drill rig. A second head assembly can be movable on the feedframe along the longitudinal axis and can include a powered water swivel assembly comprising a spindle having an interior bore a drill rod connector at a first end of the spindle, a motor that is configured to rotate the spindle, a clutch configured to disengage the motor from the spindle, a gearbox that couples the motor to the spindle, and a water swivel that is configured to provide drilling fluid to the interior bore of the spindle.
E21B 7/20 - Driving or forcing casings or pipes into boreholes, e.g. sinkingSimultaneously drilling and casing boreholes
E21B 10/26 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers
E21B 17/042 - CouplingsJoints between rod and bit, or between rod and rod threaded
E21B 19/14 - Racks, ramps, troughs or bins, for holding the lengths of rod singly or connectedHandling between storage place and borehole
E21B 19/16 - Connecting or disconnecting pipe couplings or joints
E21B 21/01 - Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
E21B 31/18 - Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 19/20 - Combined feeding from rack and connecting, e.g. automatically
E21B 19/084 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
32.
APPARATUSES AND METHODS FOR USE WITH REVERSE CIRCULATION OVERSHOT SYSTEMS
A system can comprise a drill string sub that is configured to couple to a drill rod of a drill string, wherein the drill string sub defines a shoulder and at least one through hole. A plug assembly can be receivable with a bore of the drill. The plug assembly can be releasably coupled to the drill string sub. When decoupled from the drill string, the plug assembly can be configured to be pumped into the drill string. The plug assembly can comprise a distal subassembly that defines a receiver that is configured engage a reverse circulation overshot. A proximal subassembly can be coupled to the distal subassembly. The proximal subassembly can comprise a brake apparatus that is configured to inhibit proximal movement of the plug assembly
E21B 31/18 - Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
E21B 17/04 - CouplingsJoints between rod and bit, or between rod and rod
E21B 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
E21B 25/02 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
33.
HIGH SPEED DRILLING SYSTEM AND METHODS OF USING SAME
A method comprises rotating a drill bit of a drilling system at at least 1000 rpm. The drill system can comprise a drill feed, a drill head comprising a motor and coupled to the drill feed, a drill string, comprising at least one drill rod, operatively coupled to the drill head so that the drill head is configured to axially and rotationally drive the drill string, and the drill bit coupled to the bottom end of the drill string.
E21B 10/55 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits with preformed cutting elements
An overshot assembly can include a distal body portion. The distal body portion can have a central axis, a length along the central axis, and an outer surface. An outer surface of the distal body portion can define, along at least a portion of the length, at least one drill string engagement portion having a first radial distance from the central axis of the distal body portion. The drill string engagement portion(s) can be configured to bias against and slide along an inner surface of a drill string. At least one recessed portion can be inwardly spaced from said first radial distance from the central axis.
Provided herein are methods and systems for improved core sample analysis. At least one image of a core sample may be analyzed to determine structural data associated with the core sample (e.g., attributes of the core sample). A machine learning model may analyze the at least one image and determine one or more attributes associated with the core sample. The machine learning model may generate a segmentation mask. An output image may be generated. A user may interact with the output image and provide one or more user edits. The one or more user edits may be provided to the machine learning model for optimization thereof.
G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
G06V 10/94 - Hardware or software architectures specially adapted for image or video understanding
E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
36.
High pressure injection flushing heads and systems including such flushing heads
A high pressure injection flushing head includes a flushing body comprising an upper body portion, and a lower body portion coupled to the upper body portion. The upper body portion and the lower body portion cooperate to define a bore. A shaft is rotatably disposed at least partially within the bore. A plurality of rotary elements are configured to facilitate rotational movement of the shaft relative to the flushing body. The flushing body comprises a lubrication system having a plurality of grease nipples, and a network of pathways in fluid communication with the grease nipples that are configured to deliver grease to the rotary bearings. The flushing head couples to an adapter via a flanged connection so that the flushing head can be adapted for use with a plurality of drill rod types.
A core analysis system having a trailer and an analysis assembly secured to the trailer. The analysis assembly includes an X-ray Fluorescence (XRF) detection subassembly defining a sample analysis area. The analysis assembly further includes a conveyor subassembly configured to selectively deliver one of more core samples to the sample analysis area of the XRF detection subassembly.
B60P 3/14 - Vehicles adapted to transport, to carry or to comprise special loads or objects the object being a workshop for servicing, for maintenance, or for carrying workmen during work
B60P 1/52 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using rollers in the load supporting or containing element
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
38.
SYSTEMS AND METHODS FOR MEASURING DEPTH WITHIN A BOREHOLE
Disclosed herein, in one aspect, is a system for determining depth within a borehole. The system can comprise a downhole device comprising at least one inertial sensor, at least one processor, and a memory in communication with the at least one processor. The memory can comprise instructions thereon that, when executed, cause the processor to: receive data from the at least one inertial sensor and store the data from the at least one inertial sensor in the memory with respective correlated time values. The system can further comprise a drill rig comprising at least one depth measurement device. The at least one depth measurement device can comprises a drill string position sensor that is configured to produce a measurement indicative of a length of a portion of a drill string removed from a borehole or a wireline sensor that is configured to determine a length of deployed wireline cable.
E21B 47/26 - Storing data down-hole, e.g. in a memory or on a record carrier
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
G01B 21/18 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
G01C 19/00 - GyroscopesTurn-sensitive devices using vibrating massesTurn-sensitive devices without moving massesMeasuring angular rate using gyroscopic effects
39.
MODULAR CONTROL UNIT AND SYSTEMS COMPRISING THE SAME
A control unit can comprise a housing and circuitry disposed within the housing. The circuitry can comprise a communications module, a memory, and a processor in communication with the memory and the communications module. A power source can be disposed within the housing. An input port that is configured to mate with a complementary output of a sensor unit that is external to the housing. The input port can be in communication with the circuitry. The input port can be configured to interface with the sensor unit.
A reverse-circulation drilling assembly having an overshot subassembly and a head subassembly. In the event retrieval of the drilling assembly by reverse-circulation fails, the drilling assembly can be retrieved using a secondary overshot.
E21B 31/20 - Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
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
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Machine tools for aligning drill rigs and drilling templates Apparatus for the recording, reproduction and transmission of sound or images for aligning drill rigs and drilling templates; apparatus for information transmission for aligning drill rigs and drilling templates, namely, wireless communication devices using electromagnetic signals for transmission of data Provision of research services, namely, geophysical survey for equipment positioning
A core tube handling device can be used with exploratory drilling rigs. The device can include a slew arm mounted on the rig's mast and a pivot arm mounted on the slew arm. When the slew arm is adjacent to the mast, clamping devices on the pivot arm can grasp and hold a core tube from the drill string. The slew arm can pivot away from the mast and align the pivot arm with a tray that receives and holds the tubes. The pivot arm can pivot to a position proximate the tray and release the tube. The tray can be rotatable and translatable to facilitate transfer of the tube from the pivot arm to the tray.
A drilling system can comprise a drill string having a longitudinal axis and comprising at least one drill rod and a wireless sub coupled to the at least one drill rod. The wireless sub can comprise processing circuitry that is configured to detect mechanical impulses of the drill string. The processing circuitry can be configured to wirelessly transmit signals indicative of the mechanical impulses to a remote computing device.
E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
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
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
H04L 67/125 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
E21B 47/13 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range
44.
DEVICES, SYSTEMS, AND METHODS FOR WIRELESS DATA ACQUISITION DURING DRILLING OPERATIONS
A drilling system can comprise a drill string having a longitudinal axis and comprising at least one drill rod and a wireless sub coupled to the at least one drill rod. The wireless sub can comprise processing circuitry that is configured to detect mechanical impulses of the drill string. The processing circuitry can be configured to wirelessly transmit signals indicative of the mechanical impulses to a remote computing device.
E21B 47/14 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
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
45.
Core barrel head assembly with an integrated sample orientation tool and system for using same
A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.
A drill bit comprises a first and a second body received within the first body. Each of the first body and second body has a respective crown, each crown having an inner and an outer operative circumference. The outer operative circumference of the second body and the inner operative circumference of the first body can define a first volume that can receive a tubular core sample. The second body can define a break surface that breaks the tubular core sample into core pieces. The drill bit can be employed in a borehole with a reverse circulation system that pumps fluid around an outer surface of the bit, and returning fluid can carry the core pieces out of the borehole.
E21B 10/48 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
E21B 10/62 - Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
A drill rod can include a body having an outer surface, an inner surface, a longitudinal axis aligned with a drilling axis, and at least one longitudinally extending groove extending radially outwardly from the longitudinal axis relative to the inner surface. The inner surface and the at least one longitudinally extending groove can cooperate to define an interior space through which an inner assembly can be received as the inner assembly is advanced and retracted relative to the drilling axis. The at least one longitudinally extending groove of the body of the drill rod can be configured to permit axial flow of fluid through the drill rod as portions of the inner assembly engage the inner surface of the body of the drill rod.
A drill bit comprises a first and a second body received within the first body. Each of the first body and second body has a respective crown, each crown having an inner and an outer operative circumference. The outer operative circumference of the second body and the inner operative circumference of the first body can define a first volume that can receive a tubular core sample. The second body can define a break surface that breaks the tubular core sample into core pieces. The drill bit can be employed in a borehole with a reverse circulation system that pumps fluid around an outer surface of the bit, and returning fluid can carry the core pieces out of the borehole.
E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
E21B 10/62 - Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
E21B 10/48 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing temporary use of non-downloadable cloud-based software to access and analyze geologic and geochemical data, namely, nondownloadable user interface for accessing and analyzing geologic and geochemical data
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing temporary use of non-downloadable cloud-based computer software for use in geological applications, namely, to record, interpret and analyze geologic data from photographic or graphical representations using machine learning algorithms
51.
UNDERGROUND DRILL RIG AND SYSTEMS AND METHODS OF USING SAME
A drill rig having a longitudinal drilling axis, a front portion, and a rear portion can comprise a feedframe aligned with the longitudinal drilling axis, a first head assembly coupled to the feedframe and configured to rotate a drill string, and a rod holder proximate the front portion of the drill rig. A second head assembly can be movable on the feedframe along the longitudinal axis and can include a powered water swivel assembly comprising a spindle having an interior bore a drill rod connector at a first end of the spindle, a motor that is configured to rotate the spindle, a clutch configured to disengage the motor from the spindle, a gearbox that couples the motor to the spindle, and a water swivel that is configured to provide drilling fluid to the interior bore of the spindle.
E21B 7/02 - Drilling rigs characterised by means for land transport, e.g. skid mounting or wheel mounting
E21B 7/00 - Special methods or apparatus for drilling
E21B 19/08 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods
E21B 19/16 - Connecting or disconnecting pipe couplings or joints
E21B 19/20 - Combined feeding from rack and connecting, e.g. automatically
A method comprises rotating a drill bit of a drilling system at at least 1000 rpm. The drill system can comprise a drill feed, a drill head comprising a motor and coupled to the drill feed, a drill string, comprising at least one drill rod, operatively coupled to the drill head so that the drill head is configured to axially and rotationally drive the drill string, and the drill bit coupled to the bottom end of the drill string.
A drill rod can include a body having an outer surface, an inner surface, a longitudinal axis aligned with a drilling axis, and at least one longitudinally extending groove extending radially outwardly from the longitudinal axis relative to the inner surface. The inner surface and the at least one longitudinally extending groove can cooperate to define an interior space through which an inner assembly can be received as the inner assembly is advanced and retracted relative to the drilling axis. The at least one longitudinally extending groove of the body of the drill rod can be configured to permit axial flow of fluid through the drill rod as portions of the inner assembly engage the inner surface of the body of the drill rod.
E21B 21/12 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
57.
Overshot assembly and systems and methods of using same
An overshot assembly for operative coupling to a wireline and a head assembly within a drilling system. The overshot assembly has a proximal body portion, a distal body portion, and a spindle received within the distal body portion. The distal body portion is moveable axially relative to the spindle to effect movement of a latching assembly about and between a deployed position in which the latching assembly extends radially outwardly from the distal body portion and a retracted position in which the latching assembly is received within the distal body portion.
A high pressure injection flushing head includes a flushing body comprising an upper body portion, and a lower body portion coupled to the upper body portion. The upper body portion and the lower body portion cooperate to define a bore. A shaft is rotatably disposed at least partially within the bore. A plurality of rotary elements are configured to facilitate rotational movement of the shaft relative to the flushing body. The flushing body comprises a lubrication system having a plurality of grease nipples, and a network of pathways in fluid communication with the grease nipples that are configured to deliver grease to the rotary bearings. The flushing head couples to an adapter via a flanged connection so that the flushing head can be adapted for use with a plurality of drill rod types.
F16D 31/00 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution
E21B 7/00 - Special methods or apparatus for drilling
E21B 7/02 - Drilling rigs characterised by means for land transport, e.g. skid mounting or wheel mounting
59.
Drill string components having multiple-thread joints
Drill string components having at least two threads extending around a body. The leading end of each thread can have a configuration having increased strength and resistance to jamming and cross-threading. In particular, the leading end of each thread can comprise a planar surface normal to the body. The leading end of each thread can provide an abrupt transition to full thread depth that helps reduce or eliminate cross-threading and can be oriented at an angle relative to the axis of the drill string component. Each thread can further provide at least one of a variable thread width and a variable thread pitch configured to create an axial progressive fit. Each thread can also provide a cylindrical thread root and a thread crest that circumscribes a frusta-cone over at least a portion of the axial length of the threads configured to create a radial progressive fit.
A core tube handling device can be used with exploratory drilling rigs. The device can include a slew arm mounted on the rig's mast and a pivot arm mounted on the slew arm. When the slew arm is adjacent to the mast, clamping devices on the pivot arm can grasp and hold a core tube from the drill string. The slew arm can pivot away from the mast and align the pivot arm with a tray that receives and holds the tubes. The pivot arm can pivot to a position proximate the tray and release the tube. The tray can be rotatable and translatable to facilitate transfer of the tube from the pivot arm to the tray. CA 03121238 2021-05-27 WO 2020/112988 Al I IllIl RINI II lIllIl 0 Ill IIIII 0 Ill MI I 0 Ill 0 Ill 0 Ill 0 Ill 11111 11111 11 0 IIIII01111 0 II 1111 Published: ¨ with international search report (Art. 21(3))
E21B 19/08 - Apparatus for feeding the rods or cablesApparatus for increasing or decreasing the pressure on the drilling toolApparatus for counterbalancing the weight of the rods
Infiltrated diamond bodies for use in gripping drill rods and other tubulars. One example of such an infiltrated diamond body is a cast diamond roller having a plurality of pads that are separated by channels. Another example of such an infiltrated diamond body is a cast wrench jaw having at least one raised jaw pad.
A core tube handling device can be used with exploratory drilling rigs. The device can include a slew arm mounted on the rig's mast and a pivot arm mounted on the slew arm. When the slew arm is adjacent to the mast, clamping devices on the pivot arm can grasp and hold a core tube from the drill string. The slew arm can pivot away from the mast and align the pivot arm with a tray that receives and holds the tubes. The pivot arm can pivot to a position proximate the tray and release the tube. The tray can be rotatable and translatable to facilitate transfer of the tube from the pivot arm to the tray.
A drill bit comprises a first and a second body received within the first body. Each of the first body and second body has a respective crown, each crown having an inner and an outer operative circumference. The outer operative circumference of the second body and the inner operative circumference of the first body can define a first volume that can receive a tubular core sample. The second body can define a break surface that breaks the tubular core sample into core pieces. The drill bit can be employed in a borehole with a reverse circulation system that pumps fluid around an outer surface of the bit, and returning fluid can carry the core pieces out of the borehole.
E21B 10/60 - Drill bits characterised by conduits or nozzles for drilling fluids
E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
A core analysis system having a trailer and an analysis assembly secured to the trailer. The analysis assembly includes an X-ray Fluorescence (XRF) detection subassembly defining a sample analysis area. The analysis assembly further includes a conveyor subassembly configured to selectively deliver one or more core samples to the sample analysis area of the XRF detection subassembly.
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
B60P 3/14 - Vehicles adapted to transport, to carry or to comprise special loads or objects the object being a workshop for servicing, for maintenance, or for carrying workmen during work
B60P 1/52 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using rollers in the load supporting or containing element
A wireline system for use during drilling operations. The wireline system has a wireline assembly and a roller assembly. Both the wireline assembly and the roller assembly are positioned within a front portion of a drill rig.
A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.
A reverse-circulation drilling assembly having an overshot subassembly and a head subassembly. In the event retrieval of the drilling assembly by reverse-circulation fails, the drilling assembly can be retrieved using a secondary overshot.
E21B 31/20 - Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
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
69.
Systems and methods for analyzing core using x-ray fluorescence
A core analysis system having a trailer and an analysis assembly secured to the trailer. The analysis assembly includes an X-ray Fluorescence (XRF) detection subassembly defining a sample analysis area. The analysis assembly further includes a conveyor subassembly configured to selectively deliver one or more core samples to the sample analysis area of the XRF detection subassembly.
B60P 3/14 - Vehicles adapted to transport, to carry or to comprise special loads or objects the object being a workshop for servicing, for maintenance, or for carrying workmen during work
B60P 1/52 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using rollers in the load supporting or containing element
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
A drill string components having a thread extending around a body. The leading end of the thread can have a configuration that resists jamming and cross-threading. In particular, the leading end of the thread can include a planar surface normal to the body. The leading end of the thread can provide an abrupt transition to full thread depth that helps reduce or eliminate cross-threading. The leading end of the thread can be oriented at an angle relative to the axis of the drill string component. When mating male and female threads are similarly structured, the mating threads slide together along an interface at the thread start face and are drawn into a fully thread-coupled condition. The thread starts may have full circumference mating with no jamming positions.
09 - Scientific and electric apparatus and instruments
Goods & Services
A core orientation tool used in geological core drilling, namely, an electronic position measuring device that enables marking of core samples to record their original orientation in the ground
72.
Systems and methods for releasing a portion of a drill string from a drilled cable
A cable release system for permitting detachment of a drilling cable from a drill string. The cable release system has a swivel body, a bearing assembly, one or more locking elements, and a release sleeve assembly. The swivel body is coupled to a drilling cable. The bearing assembly has a receptacle body that receives a portion of the swivel body and defines openings that receive a portion of corresponding locking elements. The bearing assembly has an outer sleeve that circumferentially surrounds the receptacle body and has a variable inner diameter such that axial movement of outer sleeve controls the radial position of the locking elements relative to the swivel body. The release sleeve assembly can be moved in a distal direction to engage the outer sleeve of the bearing assembly to move the outer sleeve to an axial position in which the swivel body and drilling cable are detachable from the remainder of the drill string.
Implementations described herein include a hoisting device and method for handling, coupling and recovery of tubular members such as drill string components. The hoisting device has a self-energizing gripping means configured to releasably engage a drill string component. In one aspect, the self-energizing gripping means can be operable to increase at least one of a radial biasing force and a contact friction force applied to a drill string component, causing the gripping means to increase the overall gripping force applied to the component with minimal effort exerted by a hoisting device operator.
ABSTRACT Infiltrated diamond bodies for use in gripping drill rods and other tubulars. One example of such an infiltrated diamond body is a cast diamond roller having a plurality of pads that are separated by channels. Another example of such an infiltrated diamond body is a cast wrench jaw having at least one raised jaw pad. Date Recue/Date Received 2020-12-22
Infiltrated diamond bodies for use in gripping drill rods and other tubulars. One example of such an infiltrated diamond body is a cast diamond roller having a plurality of pads that are separated by channels. Another example of such an infiltrated diamond body is a cast wrench jaw having at least one raised jaw pad.
A drill rod clamping system for securing a drill rod in a selected position. The drill rod clamping system has a hollow spindle with an upper portion that defines axial slots and a base portion that defines at least one radial opening. A plurality of jaws are moveable radially inwardly to a drill rod gripping position and radially outwardly to a drill rod releasing position. Each jaw is received within a respective axial slot of the hollow spindle. An actuator moves the plurality of jaws between the drill rod gripping position and the drill rod releasing position. A compressed gas spring assembly exerts force on the actuator to close the jaws. A hydraulic operator exerts force on the actuator to overcome the force of the compressed gas spring assembly to open the jaws. The radial openings of the base portion of the spindle permit flushing of material flowing within the spindle.
A brake device for engaging an inner surface of a drill string within a borehole. The brake device has a driving member that defines a plurality of wedge surfaces, a brake retainer that receives at least a portion of the driving member, and a plurality of braking elements positioned in contact with at least a portion of the outer surface of the driving member. The brake retainer has a biasing member that is operatively coupled to the driving member. The biasing member of the brake retainer biases the driving member in a proximal direction relative to the longitudinal axis of the drill string to position the wedge surfaces in contact with corresponding braking elements, and the wedge surfaces drive the braking elements radially outwardly to engage the inner surface of the drill string. The brake device is not coupled to an inner tube assembly.
E21B 23/01 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
E21B 25/02 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
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
A core barrel head assembly having at least one electronic instrument that is configured to obtain orientation data; a power source; and a communication means to receive and/or transmit orientation data for use in a core sample down hole surveying and sample orientation system that is configured to provide an indication of the orientation of a core sample relative to a body of material from which the core has been extracted, and also to a method of core sample orientation identification.
Threaded drill string component having a hollow elongate body with a box end portion, an opposing pin end portion and a cylindrical mid-body portion that extends longitudinally between the respective box and pin end portions and has a variable wall diameter. The mid-body inner wall of the mid-body portion has at least one projecting portion or upset that is spaced from both the box and pin end portions and extends inwardly toward a central longitudinal axis of the hollow body and a plurality of troughs defined in the mid-body inner wall of the mid-body portion.
A reverse-circulation drilling assembly having an overshot subassembly and a head subassembly. In the event retrieval of the drilling assembly by reverse-circulation fails, the drilling assembly can be retrieved using a secondary overshot.
E21B 23/02 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
E21B 25/02 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
E21B 31/18 - Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
E21B 31/20 - Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Drill string components having at least two threads extending around a body. The leading end of each thread can have a configuration having increased strength and resistance to jamming and cross-threading. In particular, the leading end of each thread can comprise a planar surface normal to the body. The leading end of each thread can provide an abrupt transition to full thread depth that helps reduce or eliminate cross-threading and can be oriented at an angle relative to the axis of the drill string component. Each thread can further provide at least one of a variable thread width and a variable thread pitch configured to create an axial progressive fit. Each thread can also provide a cylindrical thread root and a thread crest that circumscribes a frusta-cone over at least a portion of the axial length of the threads configured to create a radial progressive fit.
Implementations of the present invention include drill string components having a thread extending around a body. The leading end of the thread can have a configuration that resists jamming and cross-threading. In particular, the leading end of the thread can include a planar surface normal to the body. The leading end of the thread can provide an abrupt transition to full thread depth that helps reduce or eliminate cross-threading. The leading end of the thread can be oriented at an angle relative to the axis of the drill string component. When mating male and female threads are similarly structured, the mating threads slide together along an interface at the thread start face and are drawn into a fully thread-coupled condition. The thread starts may have full circumference mating with no jamming positions.
A drill bit for cutting a hole in a formation. The drill bit has a shank and a crown. The crown has a plurality of crown portions that are spaced about an operative circumference of the drill bit. The shank and crown cooperate to define an interior space that receives water or other drilling fluid. Each crown portion has two longitudinal edges, an outer surface, at least one inner surface and a cutting face. The crown has a base surface that is spaced from the cutting faces of the crown portions and cooperates with the inner surface of each of the two crown portions to define a slot.
A core lifter and method for making same for use in a drilling system. The core lifter can include a tubular body having an exterior surface and an interior surface and can have a plurality of longitudinally-oriented recesses formed in the exterior surface of the tubular body of the core lifter and extending radially inwardly relative to the central axis of the core lifter. The plurality of longitudinally-oriented recesses formed in the exterior surface of the tubular body of the core lifter can extend along at least 50 percent of the length of the core lifter.
A threaded drill string component having a hollow elongate body with a box end portion, an opposing pin end portion and a cylindrical mid-body portion that extends longitudinally between the respective box and pin end portions and has a variable wall diameter. The mid-body inner wall of the mid-body portion has at least one projecting portion or upset that is spaced from both the box and pin end portions and extends inwardly toward a central longitudinal axis of the hollow body and a plurality of troughs defined in the mid-body inner wall of the mid-body portion.
Threaded drill string component having a hollow elongate body with a box end portion, an opposing pin end portion and a cylindrical mid-body portion that extends longitudinally between the respective box and pin end portions and has a variable wall diameter. The mid-body inner wall of the mid-body portion has at least one projecting portion or upset that is spaced from both the box and pin end portions and extends inwardly toward a central longitudinal axis of the hollow body and a plurality of troughs defined in the mid-body inner wall of the mid-body portion.
A drill rod clamping system for securing a drill rod in a selected position. The drill rod clamping system has a hollow spindle with an upper portion that defines axial slots and a base portion that defines at least one radial opening. A plurality of jaws are moveable radially inwardly to a drill rod gripping position and radially outwardly to a drill rod releasing position. Each jaw is received within a respective axial slot of the hollow spindle. An actuator moves the plurality of jaws between the drill rod gripping position and the drill rod releasing position. A compressed gas spring assembly exerts force on the actuator to close the jaws. A hydraulic operator exerts force on the actuator to overcome the force of the compressed gas spring assembly to open the jaws. The radial openings of the base portion of the spindle permit flushing of material flowing within the spindle.
A release sleeve assembly of a cable release system for permitting detachment of a drilling cable from a drill string. The release sleeve assembly has a thimble body and a release sleeve. A central bore of die thimble body receives a portion of the drilling cable. A wall of the release sleeve defines a central bore and an axial slit and a side opening. The axial slit and the side opening receive the cable, and the side opening of the release sleeve receives a distal end portion of the thimble body. The axial slit and side opening of the release sleeve permit engagement between the release sleeve and the distal end portion of the thimble body after the cable is positioned through the central bore of the thimble body.
