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US20140151133 EARTH BORING TOOL WITH IMPROVED ARRANGEMENT OF CUTTER SIDE RAKES  
Earth boring tools with a plurality of fixed cutters have side rake or lateral rakes configured for improving chip removal and evacuation, drilling efficiency, and/or depth of cut management as...
US20100326741 NON-PARALLEL FACE POLYCRYSTALLINE DIAMOND CUTTER AND DRILLING TOOLS SO EQUIPPED  
A superabrasive cutter including a superabrasive table having a cutting face in non-perpendicular orientation with respect to a longitudinal axis of the cutter. A superabrasive cutter having a...
US20120138365 SHOULDER DURABILITY ENHANCEMENT FOR A PDC DRILL BIT USING SECONDARY AND TERTIARY CUTTING ELEMENTS  
A PDC bit includes a plurality of blades. A blade includes a primary cutter row and a secondary cutter row. Primary PDC cutters on the primary cutter row are set in accordance with a single set...
US20100051352 Cutter Pocket Inserts  
A method for optimizing drill bit design and an optimized drill bit for drilling a well in an earth formation, wherein, in one embodiment, the optimized drill bit comprises a bit body with a...
US20110127089 ENHANCED CUTTER PROFILE FOR FIXED CUTTER DRILL BITS  
In one aspect, a cutting structure for a drill bit includes cutters arranged to form a cutter profile. Substantially all of the cutters in a shoulder section of the cutter profile are positioned...
US20080035383 Non-rotating Pick with a Pressed in Carbide Segment  
In one aspect of the present invention, a high impact resistant tool has a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The cemented metal carbide...
US20110198128 EARTH-BORING TOOLS INCLUDING ABRASIVE CUTTING STRUCTURES AND RELATED METHODS  
A drill bit includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation...
US20100089664 DRILL BIT WITH CONTINUOUSLY SHARP EDGE CUTTING ELEMENTS  
A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade...
US20100025121 EARTH BORING DRILL BITS WITH USING OPPOSED KERFING FOR CUTTERS  
A drill bit configured having eight blades thereon with secondary cutters on four blades using opposed kerfing for the secondary cutters located on four of the blades.
US20150090502 SHEAR CLAW BIT  
A shear claw drill bit includes a bit body and a plurality of pick receptacles fixedly attached to the bit body. Each pick receptacle has a pick cavity. The shear claw drill bit further includes a...
US20090145668 IMPREGNATED ROTARY BIT  
A drill bit includes a plurality of continuous segments impregnated with diamond that are each mounted to form a corresponding blade. The regions between the blades define a plurality of fluid...
US20100012388 Optimized central PDC cutter and method  
A drill bit, insert and method useful for subterranean drilling, or forming boreholes in subterranean formations is provided. More particularly, a more efficient cutting structure and method is...
US20080190670 ROTARY DRAG BIT WITH INCREASED BACK RAKE ANGLE GAUGE CUTTER  
A fixed cutter rotary drill bit having gauge cutting elements at large back rake angles are disclosed. The gauge is located at the outer diameter side wall portion of the bit that extends from the...
US20090008155 PDC CUTTER WITH OVAL CROSS-SECTION  
A drag bit having cutting elements, wherein the cross section of the cutting elements is an oval shape, wherein in one embodiment the major axis is perpendicular to the surface of the drag bit...
US20080190666 GAGE INSERT  
A hard formation drill bit that includes a bit body, and at least one roller cone attached to the bit body, and able to rotate with respect to the bit body. Furthermore, the drill bit includes a...
US20120312603 OPTIMIZATION OF DRILL BIT CUTTING STRUCTURE  
Disclosed is method for designing a fixed cutter drill bit comprising: (a) defining initial primary placement parameters for primary cutter elements; (b) repeatedly: selecting back up placement...
US20110297454 ROLLING CUTTER ASSEMBLED DIRECTLY TO THE BIT POCKETS  
A drill bit having a bit body, a plurality of blades extending radially from the bit body, a plurality of cutter pockets disposed on the plurality of blades, at least one rolling cutter disposed...
US20080164071 SUPERABRASIVE CUTTING ELEMENTS WITH ENHANCED DURABILITY AND INCREASED WEAR LIFE, AND DRILLING APPARATUS SO EQUIPPED  
A cutting element for use in drilling subterranean formations. The cutting element includes a superabrasive table mounted to a supporting substrate. The superabrasive table includes a...
US20080179108 ROTARY DRAG BIT AND METHODS THEREFOR  
A rotary drag bit includes a primary cutter row comprising at least one primary cutter, and at least two additional cutters configured relative to one another. In one embodiment, the cutters are...
US20080308321 Interchangeable bearing blocks for drill bits, and drill bits including same  
A bearing block is provided that may be used with a drag bit body or frame to limit depth of cut of cutters on a bit. The bearing block is designed so that it may be interchangeably replaced or...
US20090145669 Drill Bit Cutting Structure and Methods to Maximize Depth-0f-Cut For Weight on Bit Applied  
A drill bit for drilling a borehole in earthen formations comprises a bit body including a cone region, a shoulder region, and a gage region. In addition the bit comprises a first primary blade...
US20090145663 Drill Bit Having Enhanced Stabilization Features  
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...
US20090084608 CUTTING STRUCTURES FOR CASING COMPONENT DRILLOUT AND EARTH BORING DRILL BITS INCLUDING SAME  
A drill bit includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation...
US20080179106 ROTARY DRAG BIT  
A rotary drag bit includes a primary cutter row comprising at least one primary cutter and a multiple backup cutter group. The multiple backup cutter group comprises a first and second trailing...
US20110024193 Optimized central cutter and method  
A central cutting structure for use with a drill bit includes a plurality of cutters, of which at least one overlaps the center of a supporting member from which the cutters extend. Each cutter...
US20140332285 FORMATION-ENGAGING ELEMENT PLACEMENT ON EARTH-BORING TOOLS AND RELATED METHODS  
Earth-boring tools include a cutting element positioned on a drill bit body at a radial distance from a longitudinal axis thereof. At least two formation-engaging elements are positioned at the...
US20140367178 CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS  
A downhole cutting tool may include a tool body; a plurality of blades extending azimuthally from the tool body; and a plurality of cutting elements disposed on the plurality of blades, the...
US20130277120 CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS  
A downhole cutting tool may include a tool body; a plurality of blades extending azimuthally from the tool body; and a plurality of cutting elements disposed on the plurality of blades, the...
US20080296070 CUTTER GEOMETRY FOR INCREASED BIT LIFE AND BITS INCORPORATING THE SAME  
An improved cutter for fixed cutter drill bits includes a base portion with a longitudinal axis that extends through a center of the base portion and a cutting face which is generally centered...
US20100326742 DRILL BIT FOR USE IN DRILLING SUBTERRANEAN FORMATIONS  
A drill bit for drilling subterranean formations comprising a drill bit body including a group of primary cutting elements comprising a first primary cutting element and a second primary cutting...
US20110284294 ROTATIONAL DRILL BITS AND DRILLING APPARATUSES INCLUDING THE SAME  
A rotary drill bit may include a bit body rotatable about a central axis. The rotary drill bit may also include at least one cutting element coupled to the bit body. The at least one cutting...
US20120234610 CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS  
A downhole cutting tool may include a tool body; a plurality of blades extending azimuthally from the tool body; and a plurality of cutting elements disposed on the plurality of blades, the...
US20150233188 Downhole Mills and Improved Cutting Structures  
A drill bit for cutting through a downhole metal structure includes a bit body having a central axis and a bit face. The bit body is configured to rotate about the central axis in a cutting...
US20100175929 CUTTER PROFILE HELPING IN STABILITY AND STEERABILITY  
An improved drill bit comprises a bit body, a plurality of blades disposed on the bit body, a first plurality of cutting elements disposed on the blades, such that the first plurality of cutting...
US20110240366 Inner Bit Disposed within an Outer Bit  
In one aspect of the present invention, a drill bit assembly for downhole drilling comprises an outer bit comprising a central axis and an outer cutting area and an inner bit disposed within the...
US20080179107 ROTARY DRAG BIT AND METHODS THEREFOR  
A rotary drag bit includes a bit body having a face and an axis, a plurality of blades extending radially and longitudinally outward from the face, and at least one split cutter set. The split...
US20100101870 Combination coring bit and drill bit using fixed cutter PDC cutters  
A drill bit having fixed Polycrystalline Diamond Compact cutters is used to drill a borehole having a core stump therein. A plurality of additional fixed Polycrystalline Diamond Compact cutters...
US20150233185 DRILL BIT APPARATUS TO CONTROL TORQUE ON BIT  
In accordance with some embodiments of the present disclosure, a drill bit for drilling a wellbore in a subterranean formation comprises a plurality of cutters disposed at a contact face of the...
US20110036640 DIAMOND IMPREGNATED BIT WITH AGGRESSIVE FACE PROFILE  
A drill bit includes a crown defining a central axis. The crown includes at least one segment. The segment includes a planar portion and a plurality of surface features continuous with and...
US20100139988 DRILL BIT WITH MULTIPLE CUTTER GEOMETRIES  
A drill bit has cutting elements with multiple cutting surface geometries that are positioned so that their cutting profiles overlap, but do not completely contain or engulf one another. The...
US20130146370 EARTH-BORING TOOLS AND METHODS OF FORMING EARTH-BORING TOOLS  
A fixed-cutter earth-boring tool includes a first blade carrying a first plurality of cutting elements and having a first stiffness and a second blade configured to have a second stiffness...
US20130008724 DRILL BIT WITH DISTRIBUTED FORCE PROFILE  
A method of making a drill bit for drilling subterranean formations includes forming a first blade having a shape and configuration defined by one or more first parameters and forming a second...
US20100187011 CUTTING STRUCTURES FOR CASING COMPONENT DRILLOUT AND EARTH-BORING DRILL BITS INCLUDING SAME  
An earth-boring tool includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean...
US20130220706 KERFING HYBRID DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS  
A drill bit for drilling a borehole in earth formations may include a bit body having a bit axis and a bit face; a plurality of blades extending radially along the bit face; and a plurality of...
US20150034394 EARTH-BORING TOOLS AND METHODS OF FORMING SUCH EARTH-BORING TOOLS  
Earth-boring drill bits may include a bit body including blades extending radially over a face of the earth-boring drill bit and cutting elements attached to each blade. Only cutting elements...
US20080156545 Method, System, and Apparatus of Cutting Earthen Formations and the like  
A cutter element is provided for use on a rotary drill bit of a drilling string to cut earthen formation and the like. The cutter element includes a cutting portion formed from cutting material...
US20140174827 Drilling Systems and Fixed Cutter Bits with Adjustable Depth-of-Cut to Control Torque-on-Bit  
A drill bit for drilling a borehole in an earthen formation includes a connection member having a pin end. In addition, the drill bit includes a bit body coupled to the connection member and...
US20120273281 METHODS OF ATTACHING ROLLING CUTTERS IN FIXED CUTTER BITS USING SLEEVE, COMPRESSION SPRING, AND/OR PIN(S)/BALL(S)  
A cutting element is disclosed that has a sleeve with a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a...
US20130292185 FIXED CUTTER DRILL BIT WITH ROTATING CUTTER DISC  
A fixed cutter drill bit that includes one or more integrally-mounted rotating disc with cutters around the circumference of the disc. Each disc is mounted to bearings to handle the torque...
US20150068816 ORIENTATION OF CUTTING ELEMENT AT FIRST RADIAL POSITION TO CUT CORE  
A fixed cutter drill bit may include a bit body having a bit centerline; a plurality of blades extending radially from the bit body and separated by a plurality of flow courses therebetween, each...
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