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Smith International, Inc. Patents
Assignee:
Smith International, Inc.
Address:
Newport Beach, CA
No. of patents:
1039
Patents:












Patent Number Title Of Patent Date Issued
T970002 Cutting elements for drill bits May 2, 1978
a cutting element for mounting in a rolling cone cutter of a rock drill bit has a notch in the periphery of its base for improved retention of the cutting element in the rolling cone cutter. The longitudinal axis of the notch is essentially transverse to the direction of insertion of the
T969007 Method for making rock bits April 4, 1978
a method of making a rock bit which is a welded assembly of legs each carrying a rotatable cutter. Electrochemical grinding is used for finish machining of mating surfaces of heat-treated bit legs, and the legs are secured together by electron-beam welding along the mating surfaces.
RE37006 High flow weld-in nozzle sleeve for rock bits January 2, 2001
A nozzle sleeve for the retention of replaceable fluid nozzles for rock bits is disclosed. The sleeve is secured within the body of the rock bit. A first upstream end of the sleeve communicates with a fluid plenum formed by the bit body. A second downstream end of this sleeve is adapted
RE36848 Air percussion drilling assembly September 5, 2000
An air percussion hammer drill is disclosed for operation in an earthen formation. The air compression hammer mechanism comprises a piston that reciprocates while simultaneously rotating within its housing. A hammer drill bit slidably keyed to the bottom of the piston transfers the impac
RE36452 Composite seal for rotary cone rock bits December 21, 1999
An elastomeric o-ring rock bit seal is disclosed with two or more integrally bonded elastomers or phenolic type materials joined together to form the seal. The dynamic sealing face adjacent the journal bearing is fabricated from an elastomer/phenolic engineered specifically for wear
RE36166 Air percussion drilling assembly for directional drilling applications March 30, 1999
An air percussion hammer drill is disclosed for operation in an earthen formation. The air compression hammer mechanism comprises a piston that reciprocates while simultaneously rotating within its housing. A hammer drill bit slidably keyed to the bottom of the piston transfers the impac
RE33751 System and method for controlled directional drilling November 26, 1991
A system and method for controlled directional drilling utilizes a system approach to design the hardware for drilling according to the well plan. The bend angle of a bent housing, connected between the bit and downhole motor, the diameter of a plurality of stabilizers and placement of t
RE32495 Chip relief for rock bits September 8, 1987
This invention relates to roller cone, air circulation type rock bits. Means are provided on the rock bit body as well as on the shirttail portion of each of the legs extending from the body to provide a relief to pass rock chips from the borehole bottom and up the drill string as the
H1566 Matrix diamond drag bit with PCD cylindrical cutters August 6, 1996
A drag bit mold fabricated from high temperature resisting material is machined to accept cylindrically shaped polycrystalline diamond cutters (PCD) having tungsten carbide bodies. Each of the multiple PCD matrix pockets in the mold is formed by two independent non-parallel end mill
8589124 Methods for modeling wear of fixed cutter bits and for designing and optimizing fixed cutter bit November 19, 2013
In one aspect, the invention provides a method for modeling the wear of a fixed cutter bit drilling earth formations. A method for determining wear of a fixed cutter drill bit includes simulating the fixed cutter drill bit drilling an earth formation; determining a cutter-formation i
8579053 Polycrystalline diamond material with high toughness and high wear resistance November 12, 2013
A cutting element that includes a substrate; and an outer layer of polycrystalline diamond material disposed upon the outermost end of the cutting element, wherein the polycrystalline diamond material: a plurality of interconnected diamond particles; and a plurality of interstitial r
8573330 Highly wear resistant diamond insert with improved transition structure November 5, 2013
An insert for a drill bit may include a metallic carbide body; an outer layer of polycrystalline diamond material on the outermost end of the insert, the polycrystalline diamond material comprising a plurality of interconnected first diamond grains and a first binder material in inte
8567534 Thermally stable polycrystalline diamond cutting elements and bits incorporating the same October 29, 2013
Cutting elements have substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits incorporate such cutting elements.
8567531 Cutting elements, methods for manufacturing such cutting elements, and tools incorporating such October 29, 2013
The present disclosure relates to cutting elements incorporating polycrystalline diamond bodies used for subterranean drilling applications, and more particularly, to polycrystalline diamond bodies having a high diamond content which are configured to provide improved properties of t
8567525 Method for determining fluid control events in a borehole using a dynamic annular pressure contr October 29, 2013
A method for determining existence of a borehole fluid control event by controlling formation pressure during the drilling of a borehole includes selectively pumping a drilling fluid through a drill string extended into a borehole, out a drill bit at the bottom end of the drill string, a
8562703 Thermally stable diamond polycrystalline diamond constructions October 22, 2013
Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and a plurality of interstitial regions disposed among the crystals. A metallic substrate is attached to the diamond body. A working surface is positioned along an outside por
8561731 Hardmetal for use in oil and gas drilling applications October 22, 2013
A down hole drill bit is disclosed that includes a plurality of cutting elements mounted on a cutting structure. At least one of the plurality of cutting elements comprises a wear resistant material, the wear resistant material comprising coarse grains disposed in a binder matrix phase,
8286699 Multiple production string apparatus October 16, 2012
A production tubing assembly for accessing multiple boreholes. The assembly includes an outer shroud having an axial throughbore, a deflector disposed in the axial throughbore and releasably coupled to the outer shroud. At least two tubular members are releasably coupled to the defle
8285531 Neural net for use in drilling simulation October 9, 2012
A method of optimizing a drilling tool assembly including inputting well data into an optimization system, the optimization system having an experience data set and an artificial neural network. The method further including comparing the well data to the experience data set and devel
8281881 Rolling cone drill bit having cutting elements with improved orientations October 9, 2012
A rolling cone drill bit for drilling a borehole in earthen formations. In an embodiment, the bit comprises a bit body. In addition, the bit comprises a cone cutter mounted on the bit body and adapted for rotation about a cone axis in a cutting direction. Further, the bit comprises at
8271199 Binning method for borehole imaging September 18, 2012
A method for forming a borehole image includes fitting logging sensor measurements residing in each of a plurality of azimuthal windows with corresponding mathematical fitting functions. The functions may then be evaluated at one or more corresponding azimuthal positions to obtain at
8256517 Downhole multiple bore tubing apparatus September 4, 2012
A tubing assembly for entering multiple boreholes includes an outer shroud having an axial throughbore, and an inner tubular member disposed in the axial throughbore, wherein the tubular member is releasably coupled to the shroud, and wherein the outer diameter of the shroud is adjus
8235149 Diamond bit steel body cutter pocket protection August 7, 2012
A drill bit that includes a steel bit body having at least one blade thereon, at least one cutter pocket disposed on the at least one blade; at least one cutter disposed in the at least one cutter pocket; at least one recess formed in at least a portion of the surface of the at least
8211203 Matrix powder for matrix body fixed cutter bits July 3, 2012
A matrix powder for forming a matrix bit body, the matrix powder essentially consisting of a plurality of carbide particles having a particle size distribution of .+-.20% of a median particle size; and a plurality of metal binder particles is disclosed.
8207738 Non-planar antennae for directional resistivity logging June 26, 2012
A downhole measurement tool includes at least one non-planar antenna configured for transmitting and/or receiving electromagnetic radiation. The non-planar antenna includes at least one non-planar loop of antenna wire deployed about a tool body. In one exemplary embodiment, the non-p
8205692 Rock bit and inserts with a chisel crest having a broadened region June 26, 2012
A drill bit for cutting a borehole comprises a bit body. In addition, the drill bit comprises a rolling cone cutter mounted on the bit body and adapted for rotation about a cone axis. Further, the drill bit comprises at least one insert having a base portion secured in the rolling cone
8201641 Vibrating downhole tool and methods June 19, 2012
A vibrating downhole tool includes a housing having a central axis defined therethrough, an inner mandrel disposed within the housing and configured to receive a drilling fluid, wherein the inner mandrel is misaligned relative to the housing central axis, and a plurality of turbine b
8197936 Cutting structures June 12, 2012
A polycrystalline diamond compact cutter that includes a thermally stable polycrystalline diamond layer, a carbide substrate, and a polycrystalline cubic boron nitride layer interposed between the thermally stable polycrystalline diamond layer and the carbide substrate such that at l
8195438 Method for designing cutting structure for roller cone drill bits June 5, 2012
New cutting structures for roller cone drill bits are disclosed. In one aspect, a drill bit includes a bit body, roller cones attached to the bit body and able to rotate with respect to the bit body, and a plurality of cutting elements disposed on each of the roller cones, such that axia
8195400 Directional resistivity imaging using harmonic representations June 5, 2012
A method for making directional resistivity measurements and forming a directional resistivity image of a subterranean formation includes processing a plurality of directional resistivity measurements and corresponding azimuth angles to calculate a first order harmonic representation
8191640 Universal pump holddown system June 5, 2012
A pump seating nipple is provided for engagement with a downhole pump in order to seal and anchor the downhole pump relative to the pump seating nipple. The pump seating nipple includes a nipple sealing component for coupling with the downhole pump to provide a seal device, a nipple axia
8186458 Expandable window milling bit and methods of milling a window in casing May 29, 2012
A method of milling a window through a casing in a primary well bore and drilling an enlarged sidetracked well bore comprises running into the primary well bore a drilling assembly comprising at least one cutting apparatus adapted to drill an enlarged borehole, milling a window through
8185366 Methods for modeling, displaying, designing, and optimizing fixed cutter bits May 22, 2012
In one aspect, the invention provides a method for modeling the performance of a fixed cutter bit drilling an earth formation. In one embodiment, the method includes selecting a drill bit and an earth formation to be represented as drilled, simulating the bit drilling the earth forma
8185365 Radial force distributions in rock bits May 22, 2012
A method for designing a drill bit in an earth formation, including defining parameters for a simulation of the drill bit drilling in earth formation, where the parameters comprise at least bit design parameters; executing the defined simulation; obtaining radial forces resulting from
8181723 Bits and cutting structures May 22, 2012
A cutting element for a downhole cutting tool including a support element, a shearing element disposed on said support, wherein the shearing element is disposed proximal to a leading edge of the downhole cutting tool, and a retaining element overlaying at least a portion of said shea
8159227 Methods for making directional resistivity measurements April 17, 2012
One exemplary embodiment of a method for making directional resistivity measurements includes transmitting an axial electromagnetic wave in a borehole and receiving substantially pure axial and transverse components of the wave. A ratio of the axial and transverse components is computed
8157029 Thermally stable polycrystalline diamond cutting elements and bits incorporating the same April 17, 2012
Cutting elements have substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits incorporate such cutting elements.
8157002 Slip ring apparatus for a rotary steerable tool April 17, 2012
A downhole tool includes a slip ring assembly deployed radially between a shaft and a housing. The slip ring assembly may be configured as a stand-alone assembly and is further configured to provide a plurality of distinct electrical communication channels between the shaft and housing.
8147572 Thermally stable diamond polycrystalline diamond constructions April 3, 2012
Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and a plurality of interstitial regions disposed among the crystals. A metallic substrate is attached to the diamond body. A working surface is positioned along an outside por
8130903 Nondestructive device and method for evaluating ultra-hard polycrystalline constructions March 6, 2012
A device, system and method for nondestructively obtaining qualitative and/or quantitative information relating to the material properties of a region in a diamond body comprises directing x-rays onto the body. The body can comprise sintered or unsintered diamond. The body can ultimately
8129994 Microresistivity imaging in conductive and nonconductive drilling fluid March 6, 2012
A microresistivity logging tool includes a shield electrode deployed between a guard electrode and a return electrode. A measuring electrode is deployed in and electrically isolated from the guard electrode and first and second potential electrodes are deployed in and electrically is
8127863 Drill bit having enhanced stabilization features and method of use thereof March 6, 2012
A drill bit for drilling a borehole in earthen formations comprising a bit body having a bit axis and a bit face. In addition, the drill bit comprises a primary blade extending radially along the bit face, the primary blade including a cutter-supporting surface that defines a blade p
8122977 Cutting device with multiple cutting structures February 28, 2012
A cutting device for downhole operations includes a first cutting structure, and a second cutting structure, wherein at least the second cutting structure is selectively presentable for operation. A method of performing a downhole cutting operation comprises running into a well bore
8118114 Closed-loop control of rotary steerable blades February 21, 2012
A steering tool has a controller configured to provide closed-loop control of blade pressure and position. In one embodiment, the controller is configured to execute a directional control methodology in which the drilling direction is controlled via control of the blade position. The
8118104 Downhole valve with pass through ID February 21, 2012
A downhole valve assembly is attached to a drillstring and includes an upper drillstring connection, a lower drillstring connection, and a tubular body comprising a through bore, and further includes a weight activated mechanism configured to close the through bore when the drillstri
8113303 Modified cutters and a method of drilling with modified cutters February 14, 2012
A cutter for a fixed cutter drill bit including a substrate and an ultrahard material layer disposed on an end surface of the substrate, the ultra hard material layer having an upper surface opposite the substrate end surface and a peripheral surface such that the upper surface inter
8112258 PDC drill bit using optimized side rake angle February 7, 2012
A fixed cutter drill bit and a method for designing a fixed cutter drill bit includes simulating the fixed cutter drill bit drilling in an earth formation. A performance characteristic of the simulated fixed cutter drill bit is determined. A side rake angle distribution of the cutters is
8109177 Bit body formed of multiple matrix materials and method for making the same February 7, 2012
Drill bit bodies are provided having one portion formed of one composition and a further portion formed of a different composition. The different compositions provide different functional properties to respective portions of the drill bit body. Methods for forming such drill bit bodi
8100203 Diamond impregnated bits and method of using and manufacturing the same January 24, 2012
A drill bit that includes a body having a lower end face for engaging a rock formation, the end face having a plurality of raised ribs extending from the face of the bit body and separated by a plurality of channels therebetween; and at least one of the plurality of ribs having a cutting
8100202 Fixed cutter bit with backup cutter elements on secondary blades January 24, 2012
In an embodiment, a drill bit for drilling a borehole comprises a bit body having a bit axis and a bit face. In addition, the drill bit comprises a primary blade extending radially along the bit face. Further, the drill bit comprises a plurality of primary cutter elements mounted to

 
 
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