Patent application number | Description | Published |
20080197691 | Locking fixture for a degradation assembly - In one aspect of the invention, a degradation assembly comprises an impact tip brazed to a carbide bolster. A stem protrudes from the bolster, being adapted to be retained within a bore connected to a driving mechanism. A locking fixture is disposed within the bore and locking the stem to a wall of the bore. | 08-21-2008 |
20080197692 | Locking fixture - In one aspect of the invention, a degradation assembly comprises an impact tip brazed to a carbide bolster. A stem protrudes from the bolster, being adapted to be retained within a bore connected to a driving mechanism. A locking fixture is disposed within the bore and locking the stem to a wall of the bore. | 08-21-2008 |
20080202742 | Open Cavity in a Pocket of a Downhole Tool String Component - A downhole tool string component, having a tubular body with an inner and outer diameter. A pocket is formed in the outer diameter and is adapted to receive downhole instrumentation. A covering is attached to the outer diameter of the component and is adapted to seal the pocket from outside debris, the pocket having a bottom floor and a plurality of side walls. An open cavity is formed in at least one of the side walls. | 08-28-2008 |
20080202765 | Method of Manufacturing Downhole Tool String Components - A method for making a downhole electrical transmission system, having the steps of providing an electrically conductive assembly disposed within a first downhole tool string component, the assembly having a first end and being anchored to the first tool string component at a first predetermined distance from a primary shoulder of the first end of the component; stretching the assembly by pulling on a second end of the assembly with a stretching tool such that the second end of the assembly is held; enlarging the diameter of the second end of the assembly to a diameter larger than an original diameter of the assembly by flaring the second end of the assembly with a flaring tool; and anchoring the second end of the assembly to the first tool string component at a second predetermined distance from a primary shoulder of the second end of the component. | 08-28-2008 |
20080211290 | Tapered Bore in a Pick - In one aspect of the present invention, a high impact resistant excavation pick having a super hard material is bonded to a cemented metal carbide substrate at a non-planar interface. The cemented metal carbide substrate is bonded to a front end of a cemented metal carbide frustum. A tapered bore is formed in the base end of the carbide frustum opposite the front end and a steel shank with a tapered interface is fitted into the tapered bore. | 09-04-2008 |
20080220664 | Wiper for Tool String Direct Electrical Connection - In one aspect of the invention, a downhole electrical connection system comprises first and second tubular bodies adapted for threaded connection to each other, each tubular body comprising an inner and an outer diameter. First and second electrical conductor assemblies are disposed within the inner diameters of the tubular bodies and are substantially coaxial with the tubular bodies and generally extend the length of the tubular bodies. The first electrical conductor assembly comprises a first electrical contact adapted to abut a second electrical contact of the second electrical conductor assembly when the first and second tubular bodies are coupled together. The first electrical contact is disposed within an elastically deformable wiper, and the elastically deformable wiper is adapted to expose the first electrical contact as it is engaged by the second electrical contact under an axially compressive load. | 09-11-2008 |
20080238181 | Retention System - A retention assembly, comprises a carbide bolster comprising a cavity formed in its base end. A shaft comprises an inserted end disposed within the cavity. The shaft is disposed within a hollow shank which comprises a first end contacting the bolster and a loaded end in mechanical communication with the shaft. The inserted end is interlocked to an inner surface of the cavity through a casting. | 10-02-2008 |
20080246329 | Retention System - A retention assembly has a carbide bolster with a first and second segment brazed together, each segment forming at least part of a cavity formed of the bolster. A shaft has an inserted end is interlocked within the cavity. | 10-09-2008 |
20080264697 | Retention for an Insert - In one aspect of the present invention, a tensioning element adapted to connect a first object to a second object. The tensioning element comprising a breakaway tensile bearing interlocking geometry on a first end, a thread form on a second end, and a breakaway torque bearing feature affixed to the first end. | 10-30-2008 |
20080302572 | Drill Bit Porting System - In one aspect of the present invention a drill bit has a jack element with a distal end extending beyond a working face. A porting mechanism within the bore comprises first and second discs contacting along a flat interface. The first disc is attached to a turbine which is adapted to rotate the first disc with respect to the second disc. The discs comprise a first set of ports adapted to align and misalign with each other as the first disc rotates. The first set of ports is adapted to route a drilling fluid to extend the jack element. | 12-11-2008 |
20080309146 | Degradation assembly shield - In one aspect of the present invention, a degradation assembly comprises a shank with a forward end and a rearward end, the rearward end being adapted for attachment to a driving mechanism, with a shield rotatably attached to the forward end of the shank. The shield comprises an underside adapted for rotatable attachment to the shank and an impact tip disposed on an end opposing the underside. A seal is disposed intermediate the shield and the shank. | 12-18-2008 |
20080309147 | Shield of a Degradation Assembly - In one aspect of the present invention, a degradation assembly comprises a shank with a forward end and a rearward end, the rearward end being adapted for attachment to a driving mechanism, with a shield rotatably attached to the forward end of the shank. The shield comprises an underside adapted for rotatable attachment to the shank and an impact tip disposed on an end opposing the underside. A seal is disposed intermediate the shield and the shank. | 12-18-2008 |
20080309148 | Degradation Assembly Shield - In one aspect of the present invention, a degradation assembly comprises a shank with a forward end and a rearward end, the rearward end being adapted for attachment to a driving mechanism, with a shield rotatably attached to the forward end of the shank. The shield comprises an underside adapted for rotatable attachment to the shank and an impact tip disposed on an end opposing the underside. A seal is disposed intermediate the shield and the shank. | 12-18-2008 |
20080309514 | Data and/or PowerSwivel - In one aspect of the invention, a swivel for use in a drilling operation comprises a body with a central bore adapted for threaded connection to a tool string component. At least one electrically conductive medium is rotationally supported within the bore and adapted to rotate with respect to an electrically conductive receiver that is rotationally fixed to and disposed within the body. The electrically conductive medium and the receiver are in electrical communication through an electrically conductive arm that is rotationally fixed to the electrically conductive medium and at least partially disposed within an electrically conductive fluid disposed within a reservoir. The reservoir comprises a rigid shape that is partially filled by the conductive fluid. A least one rotary seal is disposed intermediate the reservoir and the electrically conductive medium. The rigid shape of the reservoir is adapted to prevent the conductive fluid from accumulating around the rotary seal. | 12-18-2008 |
20090007558 | Energy Storage - A system for performing work having a hydraulic circuit has a length of hose, a hydraulic fluid in the circuit in communication with the hose and with a hydraulic actuator for doing the work, and a mechanism for pressurizing the hydraulic circuit such that at least 50 foot pounds of energy is stored within the hose to perform the work. | 01-08-2009 |
20090050372 | Downhole Turbine - In one aspect of the present invention, a drill bit has a jack element that is substantially coaxial with an axis of rotation of the drill bit and the jack element has an asymmetrical distal end that extends beyond a working face of the drill bit. A turbine is located within a bore formed in the drill bit and a flow valve is actuated by the turbine. The flow valve is adapted to route a drilling fluid in the bore into a porting mechanism adapted to extend the jack element farther beyond the working surface of the drill bit. The turbine is also adapted to rotate the jack element at variable speeds. | 02-26-2009 |
20090057016 | Downhole Turbine - In one aspect of the present invention, a drill bit has a jack element that is substantially coaxial with an axis of rotation of the drill bit and the jack element has an asymmetrical distal end that extends beyond a working face of the drill bit. A turbine is located within a bore formed in the drill bit and a flow valve is actuated by the turbine. The flow valve is adapted to route a drilling fluid in the bore into a porting mechanism adapted to extend the jack element farther beyond the working surface of the drill bit. The turbine is also adapted to rotate the jack element at variable speeds. | 03-05-2009 |
20090114195 | Hybrid Vehicle - A hybrid vehicle comprises a deceleration mechanism adapted to decelerate a wheel of the vehicle and adapted to drive an air compressor attached to the vehicle from the wheel deceleration. An engine of the vehicle comprises at least one cylinder assembly having a cylinder with an air in-take opening, and the cylinder assembly being adapted to rotate at least in part a crankshaft which is adapted to apply torque to the wheel of the vehicle. An air passage connects the compressor directly to the in-take opening, and the compressor comprises a flow regulator adapted to control an amount of air which passes from the compressor into the cylinder through the in-take valve. | 05-07-2009 |
20090139711 | Tool String Threads - A downhole tool string component comprises a tubular body with a first and second end. The tubular body of the tool string comprises an inner surface and an outer surface. A loading member near the other end of the tubular component is disposed about the outer surface and is adapted for loading the at least one sleeve against a shoulder. The loading member comprises an internal threadform adapted to threadingly engage an external threadform in the outer surface of the tubular body. Either the external threadform or the internal threadform comprises a plurality of threads with a distal thread comprising a first thread height and a proximal thread comprising a second thread height. The first thread height is greater than the second thread height and a plurality of the threads heights between the first and second thread heights accumulatively taper from the first height to the second height. | 06-04-2009 |
20090146489 | Retention System - A retention assembly, comprises a carbide bolster comprising a cavity formed in its base end. A shaft comprises an inserted end disposed within the cavity. The shaft is disposed within a hollow shank which comprises a first end contacting the bolster and a loaded end in mechanical communication with the shaft. Wherein, the inserted end is brazed to an inner surface of the cavity. | 06-11-2009 |
20090183919 | Downhole Percussive Tool with Alternating Pressure Differentials - A downhole percussive tool is disclosed comprising an interior chamber and a piston element slidably sitting within the interior chamber forming two pressure chambers on either side. The piston element may slide back and forth within the interior chamber as drilling fluid is channeled into either pressure chamber. Input channels supply drilling fluid into the pressure chambers and exit orifices release that fluid from the same. An exhaust orifice allows additional drilling fluid to release from the interior chamber. The amount of pressure maintained in either pressure chamber may be controlled by the size of the exiting orifices and exhaust orifices. In various embodiments, the percussive tool may form a downhole jack hammer or vibrator tool. | 07-23-2009 |
20090183920 | Downhole Percussive Tool with Alternating Pressure Differentials - A downhole percussive tool is disclosed comprising an interior chamber and a piston element slidably sitting within the interior chamber forming two pressure chambers on either side. The piston element may slide back and forth within the interior chamber as drilling fluid is channeled into either pressure chamber. Input channels supply drilling fluid into the pressure chambers and exit orifices release that fluid from the same. An exhaust orifice allows additional drilling fluid to release from the interior chamber. The amount of pressure maintained in either pressure chamber may be controlled by the size of the exiting orifices and exhaust orifices. In various embodiments, the percussive tool may form a downhole jack hammer or vibrator tool. | 07-23-2009 |
20090212970 | Wired Tool String Component - A system is disclosed as having first and second tubular tool string components. Each component has a first end and a second end, and the first end of the first component is coupled to the second end of the second component through mating threads. First and second inductive coils are disposed within the first end of the first component and the second end of the second component, respectively. Each inductive coil has at least one turn of an electrical conductor, and the first coil is in magnetic communication with the second coil. The first coil has more turns than the second coil. | 08-27-2009 |
20090229883 | Flow Guide Actuation - In one aspect of the present invention, a downhole drill string assembly comprises a bore there through to receive drilling fluid. A turbine may be disposed within the bore and exposed to the drilling fluid. At least one flow guide may be disposed within the bore and exposed to the drilling fluid wherein the flow guide acts to redirect the flow of the drilling fluid across the turbine. The flow guide may be adjusted by an actuator. Adjustments to the flow guide may be controlled by a downhole telemetry system, a processing unit, a control loop, or any combination thereof. In various embodiments the turbine may comprise rotatable turbine blades. | 09-17-2009 |
20090236148 | Flow Guide Actuation - In one aspect of the present invention, a downhole drill string assembly comprises a bore there through to receive drilling fluid. A turbine may be disposed within the bore and exposed to the drilling fluid. At least one flow guide may be disposed within the bore and exposed to the drilling fluid wherein the flow guide acts to redirect the flow of the drilling fluid across the turbine. The flow guide may be adjusted by an actuator. Adjustments to the flow guide may be controlled by a downhole telemetry system, a processing unit, a control loop, or any combination thereof. In various embodiments the turbine may comprise rotatable turbine blades. | 09-24-2009 |
20090294182 | Degradation Assembly - In one aspect of the invention, a tool has a working portion with at least one impact tip brazed to a carbide extension. The carbide extension has a cavity formed in a base end and is adapted to interlock with a shank assembly of the cutting element assembly. The shank assembly has a locking mechanism adapted to interlock a first end of the shank assembly within the cavity. The locking mechanism has a radially extending catch formed in the first end of the shank assembly. The shank assembly has an outer surface at a second end of the shank assembly adapted to be press-fitted within a recess of a driving mechanism. The outer surface of the shank assembly has a coefficient of thermal expansion of 110 percent or more than a coefficient of thermal expansion of a material of the driving mechanism. | 12-03-2009 |
20090301784 | Constricting Flow Diverter - In one aspect of the present invention, a downhole assembly has a downhole tool string component with a bore adapted to accommodate drilling mud having a central passage and at least one periphery passage. At least two movable segments are peripherally positioned around a bore wall adapted to constrict a diameter of the central passage and are adapted to divert drilling mud into the at least one periphery passage. At least one opening mechanism is adapted to move a portion of the at least two movable segments toward the bore wall. | 12-10-2009 |
20100018699 | Low Stress Threadform with a Non-conic Section Curve - In one aspect of the present invention a threadform has a load bearing flank and a non-load bearing flank joined by a thread root. The load bearing flank tangentially joins the thread root at a first angle, and the non-load bearing flank joins the root to a second angle. The root is made of a single non-conic section curve. | 01-28-2010 |
20100051256 | Downhole Tool String Component that is Protected from Drilling Stresses - In one aspect of the present invention, a downhole tool string component has a first and second threaded end on a mandrel, the first threaded end attached to a first sleeve and the second threaded end attached to a second sleeve. An intermediate sleeve assembly is disposed circumferentially around the mandrel and intermediate the first and second threaded ends, and the intermediate sleeve assembly is primarily isolated from stress of the first or second sleeve. | 03-04-2010 |
20100063691 | Sensors on a Degradation Machine - In one aspect of the invention, a machine for degrading a natural and/or manmade formation has picks connected to a drum of the machine and at least one accelerometer mounted to the machine adapted to measure forces acting on the machine. Electronic equipment is in communication with the at least one accelerometer and the electronic equipment has a processor adapted to determine a change in the formation based off of input from the at least one accelerometer. The electronic equipment also is in communication with a mechanism adapted to control, at least in part, a location of the drum. | 03-11-2010 |
20100065290 | Sensors on a Degradation Machine - In one aspect of the invention, a machine for degrading a natural and/or man-made formation has picks connected to a drum of the machine and at least one accelerometer mounted to the machine adapted to measure forces acting on the machine. Electronic equipment is in communication with the at least one accelerometer and the electronic equipment has a processor adapted to determine a change in the formation based off of input from the at least one accelerometer. The electronic equipment also is in communication with a mechanism adapted to control, at least in part, a location of the drum. | 03-18-2010 |
20100065334 | Turbine Driven Hammer that Oscillates at a Constant Frequency - In one aspect of the present invention a hammer assembly comprises a substantially coaxial jack element with a distal end extending beyond a working face of a drill bit. A porting mechanism within the bore comprises a first and second disc substantially contacting along a flat interface substantially normal to the axis of rotation. The first disc is attached to a turbine which is adapted to rotate the first disc with respect to the second disc. The first disc comprises a first set of ports adapted to align and misalign with a second and third set of ports in the second disc. As the first disc rotates, the sets of ports are adapted to route a drilling fluid into a piston chamber where the porting mechanism causes the jack element to repeatedly extend further beyond the working surface of the drill bit at a constant frequency. | 03-18-2010 |
20100065338 | Thick Pointed Superhard Material - In one aspect of the invention, a high impact resistant tool having a superhard bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having 0.050 to 0.125 inch radius. The superhard material also has a 0.100 to 0.500 inch thickness from the apex to the non-planar interface. The diamond material comprises a 1 to 5 percent concentration of binding agents by weight. | 03-18-2010 |
20100065339 | Thick Pointed Superhard Material - In one aspect of the invention, a high impact resistant tool having a superhard bonded to a cemented metal carbide substrate at a no n-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having 0.050 to 0.125 inch radius. The superhard material also has a 0.100 to 0.500 inch thickness from the apex to the non-planar interface. The diamond material comprises a 1 to 5 percent concentration of binding agents by weight. The tool further comprises a central axis which intersects the interface between the diamond material, substrate, and the radius of curvature. | 03-18-2010 |
20100071964 | Thick Pointed Superhard Material - In one aspect of the invention, a high impact resistant tool having a superhard bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having 0.050 to 0.125 inch radius measured from a direction substantially perpendicular to a central axis of the tool. The superhard material also has a 0.100 to 0.500 inch thickness from the apex to the non-planar interface. | 03-25-2010 |
20100212884 | Ratchet Mechanism in a Fluid Actuated Device - In one aspect of the present invention, a tool comprises a fluid path defined by a bore formed within a tubular body. A guided sleeve and a reciprocating sleeve are both disposed within the bore. A gearwheel is located on an outer surface of the guided sleeve and at least one pawl located on an inner surface of the reciprocating sleeve. When the reciprocating sleeve translates axially, it rotates in a first direction. As the reciprocating rotates, the at least one pawl pushes the gearwheel and causes the guided sleeve to rotate in the first direction into a new position. | 08-26-2010 |
20100212885 | Downhole Tool Actuation having a Seat with a Fluid By-Pass - In one aspect of the present invention, a downhole tool has a fluid path defined by a bore formed within a tubular body of the tool, a reciprocating sleeve located within the bore, the sleeve has a segmented seat with a fluid by-pass; at least one seat segment is positioned by an outer diameter of the sleeve to complete the seat, and a relief formed in a wall adjacent the outer diameter of the sleeve; wherein when the seat is occupied by an obstruction only a portion of the fluid path is obstructed and fluid impinging the obstruction causes the sleeve to move in the direction of flow until the at least one segment is relieved by the relief and releases the obstruction. | 08-26-2010 |
20100212886 | Downhole Tool Actuation having a Seat with a Fluid By-Pass - In one aspect of the present invention, a downhole tool has a fluid path defined by a bore formed within a tubular body of the tool, a reciprocating sleeve located within the bore, the sleeve has a segmented seat with a fluid by-pass; at least one seat segment is positioned by an outer diameter of the sleeve to complete the seat, and a relief formed in a wall adjacent the outer diameter of the sleeve; wherein when the seat is occupied by an obstruction only a portion of the fluid path is obstructed and fluid impinging the obstruction causes the sleeve to move in the direction of flow until the at least one segment is relieved by the relief and releases the obstruction. | 08-26-2010 |
20100212965 | Downhole Tool Actuation - In one aspect of the invention, a downhole tool string component has at least one end adapted to connect to an adjacent tool sting component and a bore adapted to accommodate a flow of drilling fluid. A turbine is disposed within the bore and an actuating assembly is arranged such that a clutch may mechanically connect and disconnect with the turbine. | 08-26-2010 |
20110104318 | High Pressure, High Temperature Back-Up with a Circumferential Relief - In one aspect of the present invention, a cartridge assembly for connection to the frame of a high-pressure, high-temperature press comprises a front end comprising a back-up intermediate and coaxial with an anvil and a piston, the anvil comprising a proximal end in contact with the back-up and a distal end that forms part of a pressurized chamber within the frame, the back-up comprising a proximal end comprising a first diameter proximate an interface with a distal end of the piston, and a distal end comprising a second diameter proximate an interface with the proximal end of the anvil, the back-up comprising one or more circumferential reliefs disposed on the first diameter. | 05-05-2011 |
20110120701 | Stress Relief in a Pocket of a Downhole Tool String Component - A downhole tool string component has a tubular body with an inner and outer diameter. A pocket is formed in the outer diameter and is adapted to receive downhole instrumentation. A covering is attached to the outer diameter of the component and is adapted to seal the pocket from outside debris, the pocket having a bottom floor and a plurality of side walls. A stress relief is formed in the pocket. | 05-26-2011 |
20110200840 | CYLINDER WITH POLYCRYSTALLINE DIAMOND INTERIOR - A rigid composite structure includes a tubular body made from a metallic material and having a first bore formed therein along a longitudinal axis, and one or more segments formed from a super hard material disposed within the first bore. Each segment has a hole formed in the center thereof, and the segments may be positioned end-to-end and adjacent to one another to align the center holes about the longitudinal axis and form a second bore. The segments can be held under compression within the first bore of the tubular body. The segments may be made of super hard materials such as natural diamond, synthetic diamond, polycrystalline diamond, single crystalline | 08-18-2011 |
20110240369 | Downhole Steerable Hammer Element - In one aspect of the present invention, a drill bit has an axis of rotation and drill bit body intermediate a threaded end and a working face. The drill bit body houses a jack element protruding from the drill bit body and the jack element has a plurality of inserts disposed on the indenting end. | 10-06-2011 |
20110240377 | Drill Bit Jack Element with a Plurality of Inserts - In one aspect of the present invention, a drill bit has an axis of rotation and drill bit body intermediate a threaded end and a working face. The drill bit body houses a jack element protruding from the drill bit body and the jack element has a plurality of inserts disposed on the indenting end. | 10-06-2011 |
20110240378 | Tapered Blade Profile on an Outer Bit - In one aspect of the present invention, a drill bit assembly is configured for downhole drilling. The drill bit assembly comprises an outer bit with a plurality of outer blades and a bore disposed within an outer cutting face. In addition, the outer bit comprises a rotational axis. The drill bit assembly comprises an inner cutting face that is configured to cut a hole with an inner gauge diameter in front of the outer bit. At least one outer blade on the outer bit comprises a central most cutter configured to degrade the inner gauge diameter. The central most cutter is axially and laterally displaced from the second most central cutter on the at least blade such that less than fifty percent of the central most cutter axially and laterally overlaps the second most central cutter. | 10-06-2011 |
20110247882 | Exhaust Port in a Protruding Element of a Downhole Drill Bit - In one aspect of the present invention, a drill bit comprises an axis of rotation and a drill bit body that comprises a central bore and a working face, the working face comprising a plurality of fixed element cutting elements, a jack element extending from the working face and being coaxial with the axis of rotation, the jack element comprising a proximal end in mechanical communication with an oscillating hammer mechanism, the jack element also comprising a channel in fluid communication with the central bore, the channel directing a fluid flow into a formation, wherein a fluid volume defined by the hammer mechanism and the central bore is evacuated through the channel. | 10-13-2011 |
20110280105 | Downhole Turbine Communication - In one aspect of the present invention a downhole drill string assembly includes a bore there through to receive a flow of drilling fluid, a signal generator that produces a signal in the drilling fluid by rotating within the flow, a processing unit disposed within the assembly, and a flow guide that directs drilling fluid to the signal generator. The flow guide is in communication with the processing unit so that in response to commands received from the processing unit, the signal generator produces a signal in the drilling fluid by the flow guide changing its position. | 11-17-2011 |
20110296730 | Rigid Composite Structure with a Superhard Interior Surface - A rigid composite structure has a first bore formed in a metallic material and a second bore formed by a super hard interior segment or segments disposed within the first bore. Each segment may be lined adjacent to one another and held under compression within the first bore. The segments may be made of super hard materials such as natural diamond, synthetic diamond, polycrystalline diamond, single crystalline diamond, cubic boron nitrate or other superhard composite materials which exhibit low thermal expansion rates and are generally chemically inert. The resultant rigid composite structure may possess higher tolerances to high pressures and high temperatures within the second bore. | 12-08-2011 |
20120012398 | Expandable Tool with at least One Blade that Locks in Place through a Wedging Effect - In one aspect of the present invention, an expandable tool for an earth boring system comprises a mandrel with a sleeve positioned around the outer surface and a blade disposed in a slot formed in the sleeve. The sleeve is also configured to slide along the tubular body. The blade comprises an interior slide groove located on an interior surface and an exterior slide groove located on an exterior surface. A sleeve protrusion is configured to extend into the interior slide groove, while a mandrel protrusion is configured to extend into the exterior slide groove. The blade is configured to shift laterally out of the slot as the sleeve slides axially, wherein the interior and exterior slide grooves are oriented at different angles and as the sleeve slides axially along the length of the mandrel, the slide grooves lock the blade in a pre-determined position through a wedging effect. | 01-19-2012 |
20120080234 | Drill Bit Steering Assembly - In one aspect of the present invention, a steering assembly for downhole directional drilling comprises an outer bit comprising a bore and an outer cutting area and in inner bit comprising an inner cutting area and connected to a shaft that is disposed within the bore. At least one biasing mechanism is disposed around the shaft. At least one fluid channel is disposed within the outer bit and redirects fluid to the at least one biasing mechanism causing the at least one biasing mechanism to push the shaft and alter an axis of the inner bit with respect to an axis of the outer bit. | 04-05-2012 |
20120193147 | Fluid Path between the Outer Surface of a Tool and an Expandable Blade - In one aspect of the invention, an expandable tool for an earth boring system comprises a through bore configured to accommodate drilling fluid. A blade is configured to extend and retract out of an outer surface of the tool. A secondary fluid pathway connects the bore with an interface between the outer surface of the tool and a surface of the blade. The secondary pathway directs drilling fluid through the interface. | 08-02-2012 |
20120234604 | Timed Steering Nozzle on a Downhole Drill Bit - In one aspect of the present invention, a downhole rotary steerable system comprises a fluid path defined by a bore formed within a drill string component. A valve located within a wall of the bore which hydraulically connects the bore with a fluid cavity. A steering nozzle disposed on the drill string component and in communication with the fluid cavity. The valve is configured to control flow from the bore to the fluid cavity with an azimuthal sensing mechanism configured to determine the azimuth of the steering nozzle and instrumentation configured to control the valve based off of input from the azimuthal sensing mechanism. | 09-20-2012 |
20120234606 | Timed Steering Nozzle on a Downhole Drill Bit - In one aspect of the present invention, a downhole rotary steerable system comprises a fluid path defined by a bore formed within a drill string component. A valve located within a wall of the bore which hydraulically connects the bore with a fluid cavity. A steering nozzle disposed on the drill string component and in communication with the fluid cavity. The valve is configured to control flow from the bore to the fluid cavity with an azimuthal sensing mechanism configured to determine the azimuth of the steering nozzle and instrumentation configured to control the valve based off of input from the azimuthal sensing mechanism. | 09-20-2012 |
20120261977 | Thick Pointed Superhard Material - In one aspect of the invention, a high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having a radius of curvature of 0.050 to 0.125 inches. The superhard material also has a thickness of 0.100 to 0.500 inches thickness from the apex to a central region of the cemented metal carbide substrate. | 10-18-2012 |
20120273187 | Detecting a Reamer Position through a Magnet Field Sensor - In one aspect of the present invention, a tool string component comprises at least one end that attaches to an adjacent component in a through bore. The invention also comprises a laterally extending member disposed along a length of the tool string component. A magnetic mechanism is configured to sense an extension depth of the laterally extending member. | 11-01-2012 |
20120313741 | Data Transmission Apparatus Comprising a Helically Wound Conductor - In one aspect of the present invention, an inductive coupling comprises an inner and outer casing. The inner casing comprises an inner trough formed into an exterior surface with an inner electrical conductor disposed within the inner trough. The outer casing comprises an outer trough formed into the interior surface with an outer electrical conductor disposed within the outer trough. The outer casing is configured to encircle the inner casing such that the inner electrical conductor is in magnetic communication with the outer electrical conductor. A helical geometry is formed in at least one of the inner or outer troughs. The inner and outer casings are configured to move relative to each other. | 12-13-2012 |
20130059474 | Conical Inductive Coupler - In one aspect of the present invention, an inductive coupling comprises a pin section and a box section. The pin section comprises an inner electrical conductor supported in an exterior tapered surface of the pin section. The box section comprises an outer electrical conductor supported in an interior tapered surface of the box section. The exterior and interior tapered surfaces are configured to align each other such that the interior and exterior tapered surfaces are coaxial with each other when fully engaged. | 03-07-2013 |
20130083536 | Optical Window in Wear Assembly - In one aspect of the present invention, a degradation assembly comprises a superhard material configured to degrade a formation. At least one light transparent window is disposed within the superhard material. An energy source and/or energy receiver is disposed behind the at least one light transparent window. | 04-04-2013 |