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| Number | Title | Issue Date |
| 7675253 | Linear actuator using magnetostrictive power element A linear actuator includes a substantially cylindrical magnetostrictive element disposed in a housing. A retainer is cooperatively engaged with the housing and an exterior of the magnetostrictive element such that relaxed portions of the magnetostrictive element are... | 03/09/2010 |
| 7668411 | Distributed vibration sensing system using multimode fiber An optical time domain reflectometry (OTDR) system is configured to detect Rayleigh backscatter reflected from a multimode sensing optical fiber. The system includes a single spatial mode filtering system to select a single speckle of the Rayleigh backscatter produc... | 02/23/2010 |
| 7661474 | Connector assembly and method of use A connector assembly for interconnecting wellbore tools to form a tool string include a first adapter having a tool end connectable to a first wellbore tool and an alignment end, a mandrel that has a pin end and an opposing end, the pin end being matable with the al... | 02/16/2010 |
| 7661367 | Radial-linear shaped charge pipe cutter A radial-linear shaped charge pipe cutter is constructed with the booster explosive packed intimately into a booster aperture that is bored axially through the charge upper end plate. The cutter explosive is initiated at the interface between the upper margin of the... | 02/16/2010 |
| 7661366 | Signal conducting detonating cord A downhole perforating device includes: a perforating gun having incorporated therein at least two shape charges; an elongated detonating cord incorporated with the perforating gun and extending along a length of the perforating gun, the detonating cord including: a... | 02/16/2010 |
| 7658883 | Interstitially strengthened high carbon and high nitrogen austenitic alloys, oilfield apparatus comprising same, and methods of making and using same Novel carbon-plus-nitrogen corrosion-resistant ferrous and austenitic alloys, apparatus incorporating an inventive alloy, and methods of making and using the apparatus are described. The corrosion-resistant ferrous and austenitic alloys comprise no greater than abou... | 02/09/2010 |
| 7654315 | Apparatus, pumping system incorporating same, and methods of protecting pump components Apparatus and pumping systems including the apparatus are described, the apparatus including a protector body comprising a material allowing expansion and contraction of an internal fluid, the body serving as a barrier between fluids external of the body and the int... | 02/02/2010 |
| 7647975 | Gas lift valve assembly An apparatus that is usable with a well includes a gas lift valve and an isolation member. The gas lift valve includes a valve element that is located between an annulus and a passageway of a tubing. The valve element is adapted to selectively open and close to cont... | 01/19/2010 |
| 7640986 | Device and method for reducing detonation gas pressure A perforating gun has a gun carrier extending in a longitudinal direction and a loading tube located within the gun carrier. The loading tube extends in the longitudinal direction and a shape charge is supported by the loading tube. The shape charge has a casing, an... | 01/05/2010 |
| 7640979 | System for well logging A technique is provided to facilitate logging in a well environment. Downhole well related equipment is deployed in a wellbore with an internal, longitudinal passageway. A logging tool system is moved through the longitudinal passageway for performance of logging pr... | 01/05/2010 |
| 7640977 | System and method for connecting multiple stage completions A technique is provided to facilitate connection of multiple stage completions. A first completion stage is deployed at a wellbore location. Subsequently, the next completion stage is moved downhole into engagement with the first completion stage. The completion sta... | 01/05/2010 |
| 7640857 | Protective electrically conductive layer covering a reactive layer to protect the reactive layer from electrical discharge A tool for use in a wellbore has an activation assembly, which has a support structure and a reactive layer on the support structure. The reactive layer is formed of a pyrotechnic material. The activation assembly also includes an electrically conductive protective ... | 01/05/2010 |
| 7635029 | Downhole electrical-to-hydraulic conversion module for well completions An apparatus that is usable with a well includes an power converter and a controller. The power converter translates electrical power into hydraulic power downhole in the well to generate a first hydraulic signal to cause a downhole tool to transition to a first sta... | 12/22/2009 |
| 7634168 | Apparatus and method for forming an optical fiber device An apparatus for forming an optical fiber device comprising at least one optical fiber includes a mold having a forming surface, a heating source for heating the mold or the optical fiber, and an insert defining at least one optical fiber locator passage for guiding... | 12/15/2009 |
| 7631697 | Oilfield apparatus comprising swellable elastomers having nanosensors therein and methods of using same in oilfield application An oilfield apparatus has a swellable elastomeric composition that includes a swellable elastomer and one or more nanosensors dispersed therein. An oilfield assembly for exploring for, drilling for, testing for, or producing hydrocarbons includes various oilfield el... | 12/15/2009 |
| 7631695 | Wellbore zonal isolation system and method A method of completing a wellbore includes the steps of connecting an isolation tool to a conveyance, the isolation tool including a tubular base member having an internal bore and an outer housing forming a first chamber and a second chamber separated by a wall; th... | 12/15/2009 |
| 7629604 | Nano-based device and method A nano-based device includes a support structure providing a support surface, a second structure providing a second surface angled with respect to the support surface, and at least one nano-emitter provided on the second surface. ... | 12/08/2009 |
| 7628207 | Accumulator for subsea equipment Pressure-balanced accumulator apparatus for use in subsea operations is disclosed which comprises a housing and an accumulator within the housing at the first end of the housing. The accumulator has first and second chambers that are hermetically sealed from one ano... | 12/08/2009 |
| 7624810 | Ball dropping assembly and technique for use in a well A technique that is usable with a well includes running string that includes a tool and a flowable object that is held in a retained position within the string downhole in the well. After the string is run downhole in the well, the flowable object is released to per... | 12/01/2009 |
| 7624800 | System and method for sensing parameters in a wellbore A system and method is provided for sensing parameters within a wellbore. At least one sensor sub is coupled between stage components of an electric submersible pumping system. A plurality of sensor subs can be disposed between adjacent pairs of stage components to ... | 12/01/2009 |
| 7624681 | Initiator activated by a stimulus A detonator assembly for initiating an explosive comprises a power source, an initiator, and a switch coupled between the power source and initiator. The switch has a trigger input responsive to a stimulus to activate the switch, where activation of the switch cause... | 12/01/2009 |
| 7621339 | Downhole production and injection pump system A downhole pump, positionable in a fluid column that is substantially separated into an oil portion and a water portion, for selectively lifting the oil to a surface and injecting the water into an injection zone includes a housing having a top wall, and a bottom wa... | 11/24/2009 |
| 7621331 | Fluid communication nipple having an interior passageway with an interior wall section that may be opened to establish fluid communication with the passageway A fluid communication nipple including a tubular mandrel having an interior surface defining an internal bore and a passageway extending substantially lengthwise along a portion of the mandrel. The passageway is defined by an exterior wall section and an interior wa... | 11/24/2009 |
| 7617876 | Formation isolation valve and method of use The present invention provides for high volume flow from a well. A retrievable formation isolation valve allows high volume flow through the remaining casing or tubing. Alternatively, a large bore valve configuration that is not retrieved, but remains as part of the... | 11/17/2009 |
| 7617874 | Flexible matrix composite actuator for use in subsurface wellbores A valve control system for a wellbore includes a fiber composite actuator functionally coupled to a valve operating member and means for controllably charging an interior of the actuator with fluid under pressure. A valve for a wellbore includes a valve stem and a v... | 11/17/2009 |
| 7604049 | Polymeric composites, oilfield elements comprising same, and methods of using same in oilfield applications Oilfield elements and assemblies are described comprising a polymeric matrix formed into an oilfield element, and a plurality of expanded graphitic nanoflakes and/or nanoplatelets dispersed in the polymeric matrix. Methods of using the oilfield elements and assembli... | 10/20/2009 |
| 7603009 | Double-ended distributed temperature sensing systems The present invention comprises a system for deploying double-ended distributed temperature sensing (DTS) systems which utilizes less space than prior art systems. In one embodiment, the present invention comprises a cable having at least two independent optical fib... | 10/13/2009 |
| 7600928 | System and method for performing and protecting hybrid line splices A method for providing a protected splice in a hybrid cable that has a fiber optic line and an electrical line includes the steps of providing an optic splice in the fiber optic line; providing a electrical splice in the electrical line proximate to the optic splice... | 10/13/2009 |
| 7600534 | Valve closing device An apparatus capable of moving a shiftable valve member into a closed position, the shiftable valve member mounted in a valve housing having a bore and being moveable between at least one open and at least one closed position relative to the bore, includes at least ... | 10/13/2009 |
| 7595865 | Optical time domain reflectometry for two segment fiber optic systems having an optical amplifier therebetween An optical time domain reflectometry apparatus for sensing a parameter in a region of interest is characterized in that the optical fiber includes a first section into which optical radiation at the probe wavelength is launched and a second section deployed in the r... | 09/29/2009 |
| 7595573 | Submersible electric motor terminated for auxiliary tools A submersible electric motor in a submersible pump system is provided that facilitates connecting auxiliary tools with the motor and disconnecting auxiliary tools from the motor without draining the fluid from the motor. The motor includes electrical terminals for c... | 09/29/2009 |
| 7594542 | Alternate path indexing device An embodiment of a method of shifting a valve between a plurality of flow condition positions, includes the steps of providing a mechanical indexer device in operational connection with a valve, the indexer device including a primary path defining a sequence through... | 09/29/2009 |
| 7591321 | Zonal isolation tools and methods of use Zonal isolation tools and methods of using same are described. The zonal isolation tools include a wellbore sealing member expandable by fluid pressure to contact a wellbore over an initial contact area, an inflation valve open during expansion of the sealing member... | 09/22/2009 |
| 7584800 | System and method for indexing a tool in a well A technique is provided to control a downhole tool in a well. An indexer is used to adjust a downhole tool to specific positions on a plurality of positions. The indexer is actuated between settings via control fluid input. The indexer is designed such that a unique... | 09/08/2009 |
| 7581734 | Peek coated seal surfaces A sealing apparatus is combined in a housing, such as a motor protector housing, having a hole extending therethrough. A shaft is movably disposed through the hole. A lip is disposed about the shaft and a ring is movably disposed about the shaft between the section ... | 09/01/2009 |
| 7580797 | Subsurface layer and reservoir parameter measurements Method and system for determining a characteristic of a subsurface formation traversed by a wellbore. A fluid flow rate in the wellbore is established, the flow being associated with fluid movement in one or more layers in the formation. Fluid data is generated from... | 08/25/2009 |
| 7565927 | Monitoring an explosive device An explosive device includes a housing, and at least one of an initiator and an explosive in the housing. The at least one of the initiator and explosive are activatable in response to stimulus from a control line. A monitor in the housing monitors a state of the st... | 07/28/2009 |
| 7562713 | Downhole actuation tools Implementations of various technologies are directed to a downhole actuation tool. In one implementation, the downhole actuation tool includes a tubular housing, an oil piston disposed inside the tubular housing, and a first housing disposed inside the tubular housi... | 07/21/2009 |
| 7562712 | Setting tool for hydraulically actuated devices A tool is actuated in a well based on one or more issued commands being interpreted and implemented by the apparatus. The apparatus comprises a power generation module that multiplies pressure delivered downhole to enable actuation of the tool without requiring deli... | 07/21/2009 |
| 7562709 | Gravel pack apparatus that includes a swellable element A gravel pack apparatus for use in a wellbore includes a screen assembly to filter particulates, at least one shunt conduit to carry gravel slurry, and a swellable element around a portion of the at least one shunt conduit. The swellable element swells in response t... | 07/21/2009 |
