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| Number | Title | Issue Date |
| 8141662 | Downhole lubrication system What is claimed is a downhole lubrication system comprising a drill string component comprising an outer diameter and an inner bore. A reservoir may be disposed intermediate the outer diameter and inner bore. A piston may be disposed at least partially within the re... | 03/27/2012 |
| 8140259 | Location device with a gravity measuring device A location device has a gravity measurement instrument in communication with a database which has the locations relative to time of an astronomical object. The location device also has a timepiece indicating the time which may be used to determine the location of th... | 03/20/2012 |
| 8136887 | 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 substrate is bonded to a front end of a cemented metal carbide segment. A... | 03/20/2012 |
| 8130118 | 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 i... | 03/06/2012 |
| 8130117 | Drill bit with an electrically isolated transmitter In one aspect of the invention a downhole drill bit with a body intermediate a shank and a working surface. Extending from the work surface is a wear resistant electric transmitter electrically isolated from the drill bit body. A wear resistant electrically conducti... | 03/06/2012 |
| 8123302 | Impact tool An impact tool for use with a driving mechanism, the impact tool including an impact tip formed from a super hard material and having an apex and an attachment end, with the attachment end being bonded to a cemented metal carbide substrate at a non-planar interface.... | 02/28/2012 |
| 8122980 | Rotary drag bit with pointed cutting elements In one aspect of the invention a rotary drag bit has a bit body intermediate a shank and a working surface. The working surface has a plurality of blades converging at a center of the working surface and diverging towards a gauge of the working surface. At least one... | 02/28/2012 |
| 8118371 | Resilient pick shank In one aspect of the invention, a pick assembly comprises a pick shank press fitted within a bore of a pick holder. The pick comprises a pick head opposite the shank. The shank also comprises at least one longitudinal slot extending towards the pick head along the s... | 02/21/2012 |
| 8109349 | 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 curvat... | 02/07/2012 |
| 8072221 | Externally guided and directed field induction resistivity tool An induction resistivity tool incorporated into a downhole tool string comprises an outer wall of a downhole component having an outer surface, and at least one induction transmitter assembly disposed along the outer surface. The transmitter assembly includes at lea... | 12/06/2011 |
| 8061784 | 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 en... | 11/22/2011 |
| 8061457 | Chamfered pointed enhanced diamond insert An impact tool that includes an impact body made from a superhard material bonded to a substrate at a non-planer interface, the impact body having a pointed geometry that includes a substantially frustoconical portion between an apex and a base end, the substantiall... | 11/22/2011 |
| 8061443 | Downhole sample rate system In one aspect of the invention, a downhole sensor system comprises at least one downhole sensor disposed on or within a downhole component of a tool string. The downhole sensor is adapted to detect at least one characteristic of a downhole formation adjacent the dow... | 11/22/2011 |
| 8046314 | Apparatus, method and system for stochastic workflow in oilfield operations The invention relates to a method for performing an oilfield operation. The method steps include obtaining oilfield data sets associated with oilfield entities, generating a stochastic database from the oilfield data sets based on an artificial neural network of the... | 10/25/2011 |
| 8038223 | Pick with carbide cap A high-impact resistant pick having a superhard material 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 bolster. A bore formed in a base end of the car... | 10/18/2011 |
| 8033616 | Braze thickness control A degradation tool or assembly comprises an inverted conical face formed in a top end of a tool body, which top face tapers towards a central axis of the tool body. A base end of a carbide bolster is adapted to be brazed to the inverted conical top face. At least on... | 10/11/2011 |
| 8033615 | 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. ... | 10/11/2011 |
| 8033330 | Tool string threads A downhole tool string component that includes a tubular body with an inner surface, an outer surface and a shoulder extending from the outer surface at one end of the tubular body, a sleeve disposed about the outer surface having an end face in contact with the sho... | 10/11/2011 |
| 8033328 | Downhole electric power generator A downhole electric power generator is disclosed in one embodiment of the invention as including an inlet channel formed in a bore of a downhole tool string component for conveying a moving downhole fluid and a turbine coupled to the inlet channel to receive the dow... | 10/11/2011 |
| 8030936 | Logging tool with independently energizable transmitters A downhole induction resistivity assembly that comprises a downhole tool string component. The tool string component comprises an induction transmitter. The transmitter is adapted to induce an induction field in the surrounding formation. A first induction receiver ... | 10/04/2011 |
| 8029068 | 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 ... | 10/04/2011 |
| 8028774 | Thick pointed superhard material 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. Th... | 10/04/2011 |
| 8028768 | Displaceable plug in a tool string filter A filter for a drill string comprises a perforated receptacle having an upper end and a lower end. The upper end of the filter comprises a drilling mud intake, and the lower end of the filter comprises an opening. A displaceable plug is seated on the opening at the ... | 10/04/2011 |
| 8020637 | Downhole lubrication system What is claimed is a downhole lubrication system comprising a drill string component comprising an outer diameter and an inner bore. A reservoir may be disposed intermediate the outer diameter and inner bore. A piston may be disposed at least partially within the re... | 09/20/2011 |
| 8020471 | Method for manufacturing a drill bit In one aspect of the present invention, a drill bit has a body intermediate a shank and a working face, the working face comprising a plurality of blades formed on the working face and extending outwardly from the bit body. Each blade comprises at least one cutting ... | 09/20/2011 |
| 8020333 | 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 for... | 09/20/2011 |
| 8011457 | Downhole hammer assembly A drill bit assembly comprises a bit body intermediate a shank and a working face. The shank is adapted for connection to a drill string. The drill string comprising a fluid passage at least partially disposed within the body. A hammer assembly is movably disposed w... | 09/06/2011 |
| 8007051 | Shank assembly In one aspect of the invention, a pick comprises a carbide bolster disposed intermediate an impact tip and a shank assembly. The impact tip comprises a superhard material bonded to a carbide substrate, and the tip is bonded to the bolster opposing a base of the bols... | 08/30/2011 |
| 8007050 | Degradation assembly A degradation assembly comprises a rotating portion and a fixed portion. The rotating portion comprises a wear resistant tip bonded to a carbide bolster. The bolster is attached to a shaft adapted for a rotatable connection within a bore of the fixed portion. The fi... | 08/30/2011 |
| 7997661 | 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 ... | 08/16/2011 |
| 7994791 | Resistivity receiver spacing A downhole induction resistivity assembly that comprises a downhole tool string component. The tool string component comprises an induction transmitter. The transmitter is adapted to induce an induction field in the surrounding formation. A first induction receiver ... | 08/09/2011 |
| 7992945 | Hollow pick shank In one aspect of the invention, a degradation pick comprises a bolster disposed intermediate a shank and an impact tip. The shank comprises an outer diameter and first and second ends. The shank is coupled to the bolster through the first end and the second end is a... | 08/09/2011 |
| 7992944 | Manually rotatable tool A degradation assembly comprises a rotary portion and a stationary portion. The rotary portion includes a cemented metal bolster bonded to a tip. The tip comprises a asymmetric, substantially conically shaped tip formed of diamond and a cemented metal carbide substr... | 08/09/2011 |
| 7982463 | Externally guided and directed field induction resistivity tool In one aspect an induction resistivity tool incorporated into a downhole tool string comprises an outer wall of a downhole component comprising an outer diameter and at least one induction transmitter assembly disposed along the outer diameter. The at least one tran... | 07/19/2011 |
| 7980612 | Clamping assembly A clamping assembly for use in gripping an object. The clamping assembly includes a pair of opposed jaws, with each jaw having a pivot end pivotally attached to a frame structure, a clamp end opposite the pivot end, and a socket located between the clamp end and the... | 07/19/2011 |
| 7980331 | Accessible downhole power assembly A drill string component includes a downhole power assembly and a center mandrel with a through-bore adapted to accommodate a flow of drilling fluid. The downhole power assembly includes a tubular battery cage disposed around the center mandrel. At least one battery... | 07/19/2011 |
| 7969819 | Method for taking time-synchronized seismic measurements A method for taking seismic measurements that includes a downhole sensor positionable within a tool string located within the bore of a well, the tool string having a network which effects communication with a downhole sensor. The downhole sensor includes a downhole... | 06/28/2011 |
| 7967083 | Sensor for determining a position of a jack element A drill string having a drill bit with a bit body located between a shank and a working face. The working face has at least one cutting element and a jack element disposed partially within the drill bit body and partially protruding from the working face. The jack e... | 06/28/2011 |
| 7967082 | Downhole mechanism A tubular downhole tool string component having a sidewall with a fluid passageway formed therein between a first end and second end, and a valve mechanism disposed within the fluid passageway adapted to substantially cyclically build-up and release pressure within ... | 06/28/2011 |
| 7963617 | Degradation assembly A degradation assembly for use with a driving mechanism includes a working portion coupled to a shank assembly. The working portion has an impact tip brazed to a working end of a carbide extension. The carbide extension has a cavity formed in a base end that is adap... | 06/21/2011 |
