A method for monitoring a drilling operation includes: providing a drill bit for drilling a wellbore into a geological formation using a drilling motor for rotating the drill bit; determining depth of cut (DOC) of the drill bit and torque exerted on the drill bit by the drilling motor using parameters measured while drilling the wellbore; simulating drilling of a hypothetical wellbore using a hypothetical drill bit similar or identical to the drill bit and determining a function that provides strength of a hypothetical geological formation from the DOC of the hypothetical drill bit and the torque exerted on the hypothetical drill bit; and determining strength of the geological formation using the function and the determined DOC and the torque.
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 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
2.
MANUFACTURE OF POLYCRYSTALLINE SUPERHARD CUTTER UTILIZING INTERNAL WIREFRAME
A method for manufacturing a cutter includes: placing a can into a press, the can comprising superhard powder, a plurality of wires embedded in the superhard powder, and catalyst; and operating the press to sinter the superhard powder, thereby forming a polycrystalline superhard cutting head. An outer portion of each wire melts and forms a transition region in the cutting head and an inner portion of each wire remains intact. The method further includes exposing at least a portion of the polycrystalline superhard cutting head to acid for removing at least a portion of the catalyst from the polycrystalline superhard cutting head. The acid tunnels into the polycrystalline superhard cutting head by dissolving at least the inner portion of each wire.
B22F 3/14 - Both compacting and sintering simultaneously
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
B23B 27/14 - Cutting tools of which the bits or tips are of special material
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 80/00 - Products made by additive manufacturing
3.
HIGH ANGLE CLAW SHAPED GOUGING CUTTER FOR FIXED CUTTER DRILL BIT
A cutter for use with a drill bit includes: a substrate for mounting in a pocket of the drill bit and made from a cermet material; and a head made from a superhard material, mounted to the substrate, and having a chisel inclined relative to a longitudinal axis of the cutter by an attack angle greater than sixty degrees.
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 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
A cutter for a drill bit includes: a substrate for mounting the cutter to the drill bit; and a cutting table. The cutting table: is made from a superhard material, is mounted to the substrate, has an interface with the substrate at a lower end thereof, and has a working face at an upper end thereof. The working face has a protruding center section and a plurality of protruding ribs. Each rib extends radially outward from the center section to a side of the cutting table. Each rib has a triangular profile formed by a pair of inclined side surfaces and a ridge connecting opposing ends of the side surfaces. The working face further has a plurality of recessed bases located between adjacent ribs and each extending inward from the side.
E21B 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
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
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
7.
METHOD FOR MANUFACTURING A POLYCRYSTALLINE SUPERHARD CUTTER UTILIZING LEACHING PASSAGES
A method for manufacturing a cutter includes: boring a passage into a polycrystalline superhard cutting head, the passage extending from a front face of the cutting head toward a side thereof; and introducing acid into the passage, thereby removing at least a portion of a metal from the cutting head.
A completions bit for use in a wellbore includes: a body having a coupling formed at an upper end thereof and a plurality of lower legs; a plurality of roller cones forming a cutting face of the completions bit, each roller cone mounted to a bearing shaft of a respective leg for rotation relative thereto; a row of crushers mounted around each roller cone at an outer portion of the cutting face; and a mill structure mounted to each roller cone at an inner portion of the cutting face, each mill structure comprising a plurality mill cutters and a matrix material bonding the mill cutters to the respective roller cone.
E21B 10/16 - Roller bits characterised by tooth form or arrangement
E21B 10/52 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts
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 bit for drilling a wellbore includes: a body; and a cutting face including: a blade protruding from the body; and a row of cutters, each cutter including: a substrate mounted in a pocket formed adjacent to a leading edge of the blade; and a cutting table made from a superhard material, mounted to the substrate, and having a working face. A first subset of the row of cutters is oriented at a negative side rake angle. A second subset of the row of cutters is oriented at a zero or slightly positive side rake angle. The first and the second subsets are alternating. An innermost cutter of the first subset has a maximum absolute value of the negative side rake angle. The absolute value negative side rake angles of the rest of the cutters decrease as their distance from a center of the cutting face increases.
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 10/55 - 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
E21B 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
A completions bit for use in a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a tangentially oriented leading cutter mounted to a bearing face of the blade adjacent to a leading edge of the blade at an inner portion of the cutting face; and a radially oriented leading cutter mounted to the bearing face of the blade in proximity to the leading edge thereof at an outer portion of the cutting face.
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 10/60 - Drill bits characterised by conduits or nozzles for drilling fluids
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
E21B 10/50 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
A completions bit for use in a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a tangentially oriented leading cutter mounted to a bearing face of the blade adjacent to a leading edge of the blade at an inner portion of the cutting face; and a radially oriented leading cutter mounted to the bearing face of the blade in proximity to the leading edge thereof at an outer portion of the cutting face.
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 bit for drilling a wellbore includes: a body; and a cutting face including: a blade protruding from the body; and a row of cutters, each cutter including: a substrate mounted in a pocket formed adjacent to a leading edge of the blade; and a cutting table made from a superhard material, mounted to the substrate, and having a working face. A first subset of the row of cutters is oriented at a negative side rake angle. A second subset of the row of cutters is oriented at a zero or slightly positive side rake angle. The first and the second subsets are alternating. An innermost cutter of the first subset has a maximum absolute value of the negative side rake angle. The absolute value negative side rake angles of the rest of the cutters decrease as their distance from a center of the cutting face increases.
E21B 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
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
E21B 10/573 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
13.
Drill bit having shaped impregnated shock studs and/or intermediate shaped cutter
A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a leading cutter including: a substrate mounted in a pocket formed in a leading edge of the blade; and a cutting table made from a superhard material and mounted to the substrate; and a shock stud having a nonplanar working portion made from a composite material and mounted in a lower face of the blade at a position trailing the leading cutter. The composite material comprises a ceramic or cermet matrix impregnated with a superhard material.
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 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
14.
DRILL BIT HAVING SHAPED IMPREGNATED SHOCK STUDS AND/OR INTERMEDIATE SHAPED CUTTER
A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a leading cutter including: a substrate mounted in a pocket formed in a leading edge of the blade; and a cutting table made from a superhard material and mounted to the substrate; and a shock stud having a nonplanar working portion made from a composite material and mounted in a lower face of the blade at a position trailing the leading cutter. The composite material comprises a ceramic or cermet matrix impregnated with a superhard material.
E21B 10/573 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
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 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
15.
Drill bit having shaped leading cutter and impregnated backup cutter
A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a leading cutter including: a substrate mounted in a pocket formed in a leading edge of the blade; and a cutting table made from a superhard material, mounted to the substrate, and having a non-planar working face with a cutting feature; and a backup cutter mounted in a lower face of the blade at a position trailing the leading cutter and made from a composite material including a ceramic or cermet matrix impregnated with a superhard material.
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 10/55 - 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
E21B 10/62 - Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
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 10/567 - Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
E21B 10/42 - Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
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
16.
SUPERABRASIVE CUTTERS FOR EARTH BORING BITS WITH MULTIPLE RAISED CUTTING SURFACES
A cutter for a drill bit includes: a substrate for mounting the cutter to the drill bit; and a cutting table. The cutting table: is made from a superhard material, is mounted to the substrate, has an interface with the substrate at a lower end thereof, and has a working face at an upper end thereof. The working face has a protruding center section and a plurality of protruding ribs. Each rib extends radially outward from the center section to a side of the cutting table. Each rib has a triangular profile formed by a pair of inclined side surfaces and a ridge connecting opposing ends of the side surfaces. The working face further has a plurality of recessed bases located between adjacent ribs and each extending inward from the side.
A cutter for a drill bit includes: a substrate for mounting the cutter to the drill bit; and a cutting table. The cutting table: is made from a superhard material, is mounted to the substrate, has an interface with the substrate at a lower end thereof, and has a working face at an upper end thereof. The working face has a protruding center section and a plurality of protruding ribs. Each rib extends radially outward from the center section to a side of the cutting table. Each rib has a triangular profile formed by a pair of inclined side surfaces and a ridge connecting opposing ends of the side surfaces. The working face further has a plurality of recessed bases located between adjacent ribs and each extending inward from the side.
A roller-mill bit for use in a wellbore includes: a body having a coupling formed at an upper end thereof and a plurality of lower legs; a plurality of roller disks, each roller disk secured to a bearing shaft of a respective leg for rotation relative thereto; a row of crushers mounted around each roller disk; and a fixed mill mounted to the bearing shafts and comprising a pad for each roller disk. Each pad is dressed with a cermet material.
E21B 10/14 - Roller bits combined with non-rolling cutters other than of leading-portion type
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
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) High impact, abrasion and thermal resistant polycrystalline diamond compact (PDC) cutters for use in drilling and reaming oil and gas wells. (1) Design and development of technical solutions for improving performance of cutters for use in drilling and reaming oil and gas wells.
42 - Scientific, technological and industrial services, research and design
Goods & Services
High impact, abrasion and thermal resistant polycrystalline diamond compact (PDC) cutters for use in drilling and reaming oil and gas wells. Design and development of technical solutions for improving performance of cutters for use in drilling and reaming oil and gas wells.
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
(1) Metal matrix powder for use in creating drill bits for earth boring drilling tools and equipment.
(2) Drill bits for earth boring drilling tools and equipment.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer software used to improve drill bit performance,
design and production of drill bits. Computer services, namely, providing computer software used
to improve drill bit performance, design and production of
drill bits.
31.
Method for drilling out a plug using a hybrid rotary cone drill bit
A method for drilling out a plug includes directing a hybrid rotary cone drill bit having a plurality of rotary cones into a borehole lined with a casing. A body of the plug is drilled out using milled teeth formed in the hybrid rotary cone drill bit. A slip of the plug is drilled out using cutter inserts secured into the rotary cone where the slip contacts the casing. The drilled out plug is directed up the borehole using a drilling fluid.
E21B 10/16 - Roller bits characterised by tooth form or arrangement
E21B 10/52 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts
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
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Computer software used to improve drill bit performance, design and production of drill bits used in oil and gas and mining applications (1) Computer services, namely, providing computer software used to improve drill bit performance, design and production of drill bits used in oil and gas and mining applications
42 - Scientific, technological and industrial services, research and design
Goods & Services
Testing, analysis, monitoring or measuring variables associated with the drilling of boreholes; geological and mechanical consultancy services relating to drilling, drill bits and drill strings.
A hybrid rotary cone drill bit includes a plurality of legs. A bearing shaft extends from each leg, and a rotary cone is rotationally coupled to each bearing shaft. At least one rotary cone includes a nose row of cutting structures, an inner row of cutting structures, and a gage row of cutting structures. The nose row and the inner row of cutting structures are formed of milled teeth. The gage row of cutting structures is formed of cutter inserts.
E21B 10/16 - Roller bits characterised by tooth form or arrangement
E21B 10/52 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts
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
(1) Roller cone, fixed cutter, and PDC drilling bits for oil and gas completion work, specifically for the drilling of hydraulic fracturing plugs and downhole equipment associated with well completions.
Roller Cone, Fixed Cutter, and polycrystalline diamond compact drilling bits for oil and gas completion work, specifically for the drilling of hydraulic fracturing plugs and downhole equipment associated with well completions.
Roller Cone [ Fixed Cutter, and PDC ] drilling bits for oil and gas completion work, specifically for the drilling of hydraulic fracturing plugs and downhole equipment associated with well completions
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Earth boring and drilling equipment and tools; oilfield and mining drill bits and drilling equipment for use in mining, construction, oil and gas exploration and recovery; parts and fittings for all aforementioned goods. Computer software designed for the analysis of oilfields; computer software for analysis of hydraulics and rock strength; computer software designed for geological and geographical analysis. Scientific and technological services and research; industrial analysis and research services relating to oilfield and mining drilling, hydraulics and rock strength; geological prospecting, research and surveys; land surveying.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Earth boring and drilling equipment and tools; oilfield and mining drill bits and drilling equipment for use in mining, construction, oil and gas exploration and recovery; parts and fittings for all aforementioned goods. Computer software designed for the analysis of oilfields; computer software for analysis of hydraulics and rock strength; computer software designed for geological and geographical analysis. Scientific and technological services and research; industrial analysis and research services relating to oilfield and mining drilling, hydraulics and rock strength; geological prospecting, research and surveys; land surveying.
(1) Earth boring equipment, namely, drill bits and earth boring tools for mining, construction and oil and gas exploration and recovery, all being used with earth boring machines or drilling rigs.
