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| Number | Title | Issue Date |
| 7852232 | Downhole tool adapted for telemetry A cycleable downhole tool such as a Jar, a hydraulic hammer, and a shock absorber adapted for telemetry. This invention applies to other tools where the active components of the tool are displaced when the tool is rotationally or translationally cycled. The inventio... | 12/14/2010 |
| 7568534 | Dual-edge working surfaces for polycrystalline diamond cutting elements A polycrystalline diamond cutting element for earth boring drill bits presents regions of different abrasion resistance to the earthen formation when in operation. The cutting element has an end working surface and a region which is substantially free of catalyzing ... | 08/04/2009 |
| 7528736 | Loaded transducer for downhole drilling components A system for transmitting information between downhole components has a first downhole component with a first mating surface and a second downhole component having a second mating surface configured to substantially mate with the first mating surface. The system als... | 05/05/2009 |
| 7527301 | Pipe/connector weld joint, and methods of welding same The present invention is directed to a pipe section and a connector that are adapted to be welded together, wherein each of the pipe and connector have inner and outer beveled surfaces and the joint is comprised of an angular alignment land. In one embodiment, an ou... | 05/05/2009 |
| 7455329 | Fast make-up fatigue resistant rotary shouldered connection A thread form having improved strength and fatigue resistance. The root of the thread may be cut on multiple cutting radii having displaced centers. At least two of the root surfaces formed by cutting radii may have lengths that are greater than the root truncation.... | 11/25/2008 |
| 7318492 | Rotary drill bit A drill bit for drilling a borehole with a steerable drilling system, the drill bit comprising a longitudinal axis, and a cutting profile with a leading face section blended with a curved region into a tapered gauge region having a tapered gauge profile. The tapered... | 01/15/2008 |
| 7303029 | Filter for a drill string A filter for a drill string comprises a perforated receptacle having an open end and a perforated end and first and second mounting surfaces are adjacent the open end. A transmission element is disposed within each of the first and second mounting surfaces. A capaci... | 12/04/2007 |
| 7299867 | Hanger mounted in the bore of a tubular component A hanger mounted within a bore of a tubular string component has a split ring, a tapered key and a passageway formed in the hanger. The split ring has interfacial surfaces cooperating with interfacial surfaces of the tapered key. The bore may be located within a tub... | 11/27/2007 |
| 7298287 | Transmitting data through a downhole environment The invention is a system for transmitting data through downhole environments comprising a downhole network integrated into a downhole tool string. The downhole tool string comprises a plurality of downhole components. Each downhole component also comprises a conduc... | 11/20/2007 |
| 7291303 | Method for bonding a transmission line to a downhole tool An apparatus for bonding a transmission line to the central bore of a downhole tool includes a pre-formed interface for bonding a transmission line to the inside diameter of a downhole tool. The pre-formed interface includes a first surface that substantially confor... | 11/06/2007 |
| 7288857 | Self-latching power supply apparatus A self-latching power supply apparatus is disclosed. The apparatus comprises an activation transistor in electrical communication with an input voltage source and a battery-switching transistor. Voltage detection circuitry may be intermediate the input voltage sourc... | 10/30/2007 |
| 7275597 | Remote power management method and system in a downhole network A method for remotely managing downhole power consumption in a downhole network system is disclosed. The method comprises the steps of monitoring an activation state for each of a plurality of individually activatable electrically-powered modules in a downhole devic... | 10/02/2007 |
| 7274304 | System for loading executable code into volatile memory in a downhole tool A system for loading an executable code into volatile memory in a downhole tool string component comprises a surface control unit comprising executable code. An integrated downhole network comprises data transmission elements in communication with the surface contro... | 09/25/2007 |
| 7268697 | Laterally translatable data transmission apparatus A data transmission apparatus having first and second electrical conductors is disclosed. The first and second electrical conductors are disposed within recesses of a first and second complementary surfaces that are magnetically conducting and electrically insulatin... | 09/11/2007 |
| 7253745 | Corrosion-resistant downhole transmission system An apparatus in accordance with the invention may include a downhole tool and a data transmission path incorporated into the downhole tool. The data transmission path may include one or more contact surfaces providing electrical continuity to the data transmission p... | 08/07/2007 |
| 7248177 | Down hole transmission system A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. The electrically conducting coil comprises at... | 07/24/2007 |
| 7243717 | Apparatus in a drill string An apparatus in a drill string comprises an internally upset drill pipe. The drill pipe comprises a first end, a second end, and an elongate tube intermediate the first and second ends. The elongate tube and the ends comprising a continuous an inside surface with a ... | 07/17/2007 |
| 7237628 | Fixed cutter drill bit with non-cutting erosion resistant inserts The present invention is directed to a drill bit with non-cutting erosion resistant inserts. In one illustrative embodiment, the apparatus comprises a matrix drill bit body comprising a plurality of blades, a plurality of cutting elements positioned on each of the b... | 07/03/2007 |
| 7212040 | Stabilization of state-holding circuits at high temperatures A state-holding circuit having improved stability at high temperatures includes a bi-stable circuit capable of assuming one of two reversible and stable states. The bi-stable circuit comprises a plurality of logic components (e.g., transistors) arranged into two sid... | 05/01/2007 |
| 7207396 | Method and apparatus of assessing down-hole drilling conditions A method and apparatus for use in assessing down-hole drilling conditions are disclosed. The apparatus includes a drill string, a plurality of sensors, a computing device, and a down-hole network. The sensors are distributed along the length of the drill string and ... | 04/24/2007 |
| 7201240 | Biased insert for installing data transmission components in downhole drilling pipe An apparatus for installing data transmission hardware in downhole tools includes an insert insertable into the box end or pin end of drill tool, such as a section of drill pipe. The insert typically includes a mount portion and a slide portion. A data transmission ... | 04/10/2007 |
| 7200070 | Downhole drilling network using burst modulation techniques A downhole drilling system is disclosed in one aspect of the present invention as including a drill string and a transmission line integrated into the drill string. Multiple network nodes are installed at selected intervals along the drill string and are adapted to ... | 04/03/2007 |
| 7198118 | Communication adapter for use with a drilling component A communication adapter is disclosed that provides for removable attachment to a drilling component when the drilling component is not actively drilling and for communication with an integrated transmission system in the drilling component. The communication adapter... | 04/03/2007 |
| 7193527 | Swivel assembly A swivel assembly for a downhole tool string comprises a first and second coaxial housing cooperatively arranged. The first housing comprises a first transmission element in communication with surface equipment. The second housing comprises a second transmission ele... | 03/20/2007 |
| 7190280 | Method and apparatus for transmitting and receiving data to and from a downhole tool A transmission line network system for transmitting and/or receiving data from a downhole tool. The invention is achieved by providing one or more transceiving elements, preferably rings, at either end of a downhole tool. A conduit containing a coaxial cable capable... | 03/13/2007 |
| 7168506 | On-bit, analog multiplexer for transmission of multi-channel drilling information The invention includes, in its various aspects and embodiments, a method and apparatus for multiplexing data on-bit in a drilling operation. The apparatus comprises a bit; a plurality of transducers situated on the bit; and an analog multiplexer situated on the on t... | 01/30/2007 |
| 7165633 | Drilling fluid filter A drilling fluid filter for placement within a bore wall of a tubular drill string component comprises a perforated receptacle with an open end and a closed end. A hanger for engagement with the bore wall is mounted at the open end of the perforated receptacle. A ma... | 01/23/2007 |
| 7139218 | Distributed downhole drilling network A high-speed downhole network providing real-time data from downhole components of a drilling strings includes a bottom-hole node interfacing to a bottom-hole assembly located proximate the bottom end of a drill string. A top-hole node is connected proximate the top... | 11/21/2006 |
| 7135933 | System for adjusting frequency of electrical output pulses derived from an oscillator A system for setting and adjusting a frequency of electrical output pulses derived from an oscillator in a network is disclosed. The system comprises an accumulator module configured to receive pulses from an oscillator and to output an accumulated value. An adjusto... | 11/14/2006 |
| 7132904 | Apparatus for reducing noise An apparatus for electromagnetically connecting surface equipment to a rotating downhole tool string comprises a plurality of electrical conductors, first and second differential interfaces, and at least one electromagnetic shield. The plurality of electrical conduc... | 11/07/2006 |
| 7123160 | Method for triggering an action A method for triggering an action of at least one downhole device on a downhole network integrated into a downhole tool string synchronized to an event comprises determining latency, sending a latency adjusted signal, and performing the action. The latency is determ... | 10/17/2006 |
| 7116199 | Inductive coupler for downhole components and method for making same An inductive coupler for downhole components. The inductive coupler includes an annular housing having a recess defined by a bottom portion and two opposing side wall portions. At least one side wall portion includes a lip extending toward but not reaching the other... | 10/03/2006 |
| 7098767 | Element for use in an inductive coupler for downhole drilling components The present invention includes an element for use in an inductive coupler in a downhole component. The element includes a plurality of ductile, generally U-shaped leaves that are electrically conductive. The leaves are less than about 0.0625″ thick and are separat... | 08/29/2006 |
| 7098802 | Signal connection for a downhole tool string A signal transmission connection for a tool string used in exploration and production of natural resources, namely: oil, gas, and geothermal energy resources. The connection comprises first and second annular elements deployed in cooperative association with each ot... | 08/29/2006 |
| 7091810 | Element of an inductive coupler An element for an inductive coupler in a downhole component comprises magnetically conductive material, which is disposed in a recess in annular housing. The magnetically conductive material forms a generally circular trough. The circular trough comprises an outer g... | 08/15/2006 |
| 7069999 | Apparatus and method for routing a transmission line through a downhole tool A method for routing a transmission line through a tool joint having a primary and secondary shoulder, a central bore, and a longitudinal axis, includes drilling a straight channel, at a positive, nominal angle with respect to the longitudinal axis, through the tool... | 07/04/2006 |
| 7064676 | Downhole data transmission system A system for transmitting data through a string of downhole components. In one aspect, the system includes first and second magnetically conductive, electrically insulating elements at both ends of the component. Each element includes a first U-shaped trough with a ... | 06/20/2006 |
| 7053788 | Transducer for downhole drilling components A robust transmission element for transmitting information between downhole tools, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The transmission element maintai... | 05/30/2006 |
| 7044216 | Large diameter flush-joint pipe handling system An elevator for assembling a plurality of a large diameter pipe joints into a pipe string with a drilling rig is disclosed. The first one of a number of large diameter pipe joints is adapted to threadingly engage another large diameter pipe joint. The elevator is de... | 05/16/2006 |
| 7041908 | Data transmission system for a downhole component The invention is a system for transmitting data through a string of downhole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. Each component has a first an... | 05/09/2006 |
