子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 281 | Control Line Sharing Between a Lower and an Insert Safety Valve | US14298094 | 2014-06-06 | US20150354316A1 | 2015-12-10 | Charles T. Kirkpatrick |
| A system involving a lower tubing mounted safety valve having one or two control lines further contains a landing nipple above for a wireline insert valve. One line that serves the lower safety valve is tied to a connection on the landing nipple for the insert valve. When the lower safety valve malfunctions the landing nipple wall is penetrated to get communication to the line coming from the lower safety valve so that such line can serve as a balance line for the insert valve. The other line from the surface to the other connection on the landing nipple serves as the operating line for the insert valve. Making one line serve a dual purpose eliminates one control line from the surface. | ||||||
| 282 | SELF-REGULATING SURPLUSSING CHECK VALVE | US14652154 | 2013-12-16 | US20150322743A1 | 2015-11-12 | John THOMPSON; Paul CHUBBOCK |
| A check valve assembly (100, 200) is provided for subsea applications. The check valve assembly comprises a housing (102, 202), having an inlet port (106, 206) and an outlet port (108, 208) forming an internal fluid passageway through the housing; a valve member (112, 212), moveable within the internal fluid passageway between a first position, where fluid flow through the internal fluid passageway is prevented, and a second position, where fluid flow through the internal fluid passageway is permitted; a biasing member (110, 210), adapted to urge the valve member into the first position at a predetermined cracking force, and a pressure interface (116, 216). The pressure interface operatively links the valve member and an external fluid of a region exterior of the check valve assembly so as to provide a supplemental force, proportional to the ambient pressure of the external fluid, adapted to urge the valve member towards the first position. | ||||||
| 283 | SYSTEM AND METHOD FOR STEERING IN A DOWNHOLE ENVIRONMENT USING VIBRATION MODULATION | US14714842 | 2015-06-04 | US20150260031A1 | 2015-09-17 | TODD W. BENSON |
| A system for making bottom hole assembly (BHA) measurements in the bottom hole assembly (BHA) includes a vibration mechanism configured to use mechanical energy provided by a mechanical energy source to produce a plurality of vibration beats at the BHA. At least one vibration sensor detects the plurality of vibration beats generated by the vibration mechanism. A controller generates a waveform responsive to the detected plurality of vibration beats. The waveform is generated in a first configuration when the BHA has a first weight on bit (WOB) or revolutions per minute (RPM) measurement based on the detected plurality of vibration beats and the waveform is generated in a second configuration when the BHA has a second WOB or RPM measurement based on the detected plurality of vibration beats. | ||||||
| 284 | Rotary servo pulser and method of using the same | US13747315 | 2013-01-22 | US09133950B2 | 2015-09-15 | Manoj Gopalan; Robert Arthur Weber |
| A servo pulser used to actuate a pulser valve and create pressure pulses in downhole measurement while drilling tools is described. An electric gearmotor is used to rotate a shaft which in turn operates a servo valve. A facing portion of the shaft is compressed onto the face of a servo seat having passages connected to the inside of a drill collar and the rotating action is used to open and/or obstruct a fluid path through those passages. The shaft may include wear-resistant tips to obstruct the fluid path. Part of the torque-transmitting apparatus between the gearmotor and the shaft can be hydrostatically compensated, and part sealed against the operating environment. A magnetic torque coupler may be used as part of the torque-transmitting apparatus between the gearmotor and the shaft. The servo pulser is coupled to a pulser valve, a power source and a sensor package all of which reside inside a short section of drill pipe near the bottom of well bore being drilled. | ||||||
| 285 | Fluid Loss Well Treatment | US14417683 | 2014-06-06 | US20150252638A1 | 2015-09-10 | William Mark Richards; Andy Cheng Chang |
| A well treatment for treating a well includes discrete stop loss elements to seal a fluid loss opening of a well. The discrete stop loss elements include polymer resistive to deformation with an initial stiffness in response to an initial strain rate of the polymer to produce a specified initial pressure signal and deformable with a subsequent, lower stiffness in response to a subsequent, lower strain rate of the polymer to produce a subsequent, different specified pressure signal. | ||||||
| 286 | Well | US14712007 | 2015-05-14 | US20150247373A1 | 2015-09-03 | Shaun Compton Ross; Leslie David Jarvis |
| A well (10) comprising a packer apparatus, the packer apparatus comprising: a packer (16) and an activation mechanism; wherein the activation mechanism comprises an expansion mechanism for expanding the packer (16) and a wireless receiver (360) optionally a transceiver. For certain embodiments the wireless receiver may be acoustic and/or electromagnetic. The receiver is adapted to receive a wireless control signal and control the activation mechanism and wherein the packer apparatus is provided downhole in any one of the following locations, (i) on a production tubing; (ii) in a casing annulus between two different casing strings; (iii) between the casing and formation; (iv) on a sub-assembly within an uncased section of the well and (v) on a drill string. | ||||||
| 287 | CASING VALVE | US14711993 | 2015-05-14 | US20150240597A1 | 2015-08-27 | Shaun Compton Ross; Leslie David Jarvis |
| A safety mechanism (401) comprising: (i) an obstructing member (412,414) moveable between a first position where fluid flow is permitted, and a second position where fluid flow is restricted; (ii) a movement mechanism (416,418); (iii) a wireless receiver (360), optionally a transceiver, adapted to receive a wireless signal such as electromagnetic or acoustic. The movement mechanism (416,418) is operable to move the obstructing member (412,414) from one of the first and second positions to the other of the first and second positions in response to a change in the signal being received by the wireless receiver (360). The safety mechanism also has (iv) a valve (401) in a casing sub; the valve (401) being adapted to move from one of the first and second positions to the other of the first and second positions, and then back to the first of the first and second positions. | ||||||
| 288 | Well System Cementing Plug | US14417738 | 2014-06-06 | US20150198008A1 | 2015-07-16 | Charles Timothy Smith; William Mark Richards; Andy Cheng Chang |
| A wellbore cementing plug includes a plug element including a polymer. The polymer is deformable at a first stiffness when subjected to a first strain rate to allow the plug element to pass through a wellbore while sealing against passage of cement past the plug element. The polymer resists deformation at a second, higher stiffness when subjected to a second, higher strain rate to resist allowing the plug element to pass through the wellbore while sealing against passage of cement past the plug element. | ||||||
| 289 | Gas lift system having expandable velocity string | US13368564 | 2012-02-08 | US09068444B2 | 2015-06-30 | William C. Lane; Deborah L. Banta |
| A velocity string deploys in production tubing of a gas well (or a gassy oil well) to help lift fluid toward the surface. The velocity string reduces flow area in the production tubing so that a critical flow velocity can be reached to lift liquid. Overtime, the reservoir pressure and resulting gas flow may decrease such that less liquid is produced toward the surface. At such a stage, operators then expand the velocity string to further decrease the flow area in the production tubing, which can produce the needed critical flow velocity to allow produced liquid to be lifted toward the surface. | ||||||
| 290 | System and method for using controlled vibrations for borehole communications | US14508849 | 2014-10-07 | US09057258B2 | 2015-06-16 | Todd W. Benson |
| A system for producing controlled vibrations within a borehole comprises a vibration mechanism an impact to produce a plurality of vibration beats. The vibration mechanism is located substantially near a bottom hole assembly within the borehole. A damping mechanism selectively damps the vibration beats to encode information therein. The damping mechanism is located remotely from the vibration mechanism along a drill string of the bottom hole assembly. | ||||||
| 291 | Well gate valve greasing tool and method of use | US13672479 | 2012-11-08 | US09052061B2 | 2015-06-09 | Henry He; Scott Thistle; Christina L. Shannon |
| A grease tool lubricates a valve having an actuator assembly for moving a valve element of the valve. The tool has a housing with a piston carried in a bore. The housing is open for inserting and sealing a portion of the actuator assembly into the bore. A fill port in the housing allows grease to be introduced into the bore. A piston rod joins the piston and has external threads engaging internal threads of the housing, so that rotating the piston rod causes the piston to move axially. A lever is mounted to the housing for imparting rotation to the housing. A lock pin extends through a side wall of the housing to engage the actuator assembly to cause the actuator assembly to rotate in unison with the housing. | ||||||
| 292 | PRESSURE CONTAINMENT DEVICE | US14542776 | 2014-11-17 | US20150144400A1 | 2015-05-28 | Christian LEUCHTENBERG; George MICHAUD |
| A pressure containment device for containing pressure in an annulus around a tubular body, the device comprising a housing having an axis and a passage extending generally parallel to the housing axis, and a seal assembly comprising a seal located in the housing to surround and enter into sealing engagement with a tubular body extending along the passage, wherein the housing is provided with a returns outlet port, an injection port, and an overflow outlet port, all of which extend through the housing from the exterior of the housing into the passage, the injection port being located between the returns outlet port and a first end of the seal, and the overflow outlet port being located adjacent a second, opposite end of the seal, and thus being separated from the injection port by the seal. | ||||||
| 293 | Back-up ring for a liner top test tool | US13530278 | 2012-06-22 | US09022121B1 | 2015-05-05 | Dennis Joel Penisson |
| A back-up ring for use in a liner top test tool for testing casing integrity in a wellbore is disclosed. The back-up ring is comprised of first and second ring elements that are biased apart by a compression springs. The first ring element has a plurality of radially extending flanges that cover a plurality of channels in the second ring element when the back-up ring is compressed against a seal element on the liner top test tool to seal the wellbore casing. | ||||||
| 294 | Applications of Degradable Polymer for Delayed Mechanical Changes in Wells | US14493770 | 2014-09-23 | US20150090440A1 | 2015-04-02 | Claude E. Cooke, JR. |
| Degradable polylactic or polyhydroxyalkanoate polymers may be used to viscosify aqueous fluids for use in wells. Sand control screen or liner can be coated with a solid degradable polymer during placement in a well. Mechanical changes or flow changes in a well can be caused by solid degradable polymer that changes physical properties after it is placed in a well. Parts of devices or entire devices can be made of solid degradable polymer that converts to a fluid after selected times in an aqueous environment in a well. | ||||||
| 295 | Hydraulic Cycle Opening Sleeve | US13963147 | 2013-08-09 | US20150041148A1 | 2015-02-12 | Iain Greenan |
| According to one aspect of the disclosure, a hydraulic cycle opening sleeve includes a valve assembly and an opening assembly. The valve assembly includes at least one valve chamber and valve piston positioned to move in response to fluid pressure. The opening assembly includes a sliding piston to selectively open or close the hydraulic cycle opening sleeve. | ||||||
| 296 | Casing Joint Assembly for Producing an Annulus Gas Cap | US14502800 | 2014-09-30 | US20150041140A1 | 2015-02-12 | Robert F. Mitchell |
| A casing joint assembly and methods for producing an annulus gas cap using the casing joint assembly. The casing joint assembly comprises a first valve and a second valve to control fluid pressure in the sealed annulus between the casing string and a wall of the well bore or another casing string. | ||||||
| 297 | Internal blow out preventer | US13521564 | 2011-01-10 | US08950430B2 | 2015-02-10 | Slawomir Kukielka |
| An internal blow out preventer for use in a drill string, comprising a housing having an outer valve closure element and where the outer valve closure element is configured to be moved between an open and a closed position, wherein the outer valve closure element is provided with an inner valve closure element that is configured to be moved between an open and a closed position inside the outer valve closure element. | ||||||
| 298 | BACK PRESSURE VALVE | US14514288 | 2014-10-14 | US20150027731A1 | 2015-01-29 | Dennis P. Nguyen; Kirk P. Guidry; Thomas E. Taylor |
| A system in some embodiments includes a back pressure valve configured to mount in a mineral extraction system. The back pressure valve comprises a cylindrical body comprising a venting port coaxial with a longitudinal axis of the cylindrical body and a plunger disposed in the venting port, wherein the plunger comprises a stem that extends from the venting port into an adjacent cavity of the cylindrical body. In some embodiments, a method of operating a valve, includes biasing a plunger to an open position, biasing a valve locking mechanism to a locked position in relation to a bore of a mineral extraction system, and biasing a plunger to a closed position. | ||||||
| 299 | SYSTEM AND METHOD FOR USING CONTROLLED VIBRATIONS FOR BOREHOLE COMMUNICATIONS | US14508849 | 2014-10-07 | US20150023137A1 | 2015-01-22 | TODD W. BENSON |
| A system for producing controlled vibrations within a borehole comprises a vibration mechanism an impact to produce a plurality of vibration beats. The vibration mechanism is located substantially near a bottom hole assembly within the borehole. A damping mechanism selectively damps the vibration beats to encode information therein. The damping mechanism is located remotely from the vibration mechanism along a drill string of the bottom hole assembly. | ||||||
| 300 | Methods of magnetic particle delivery for oil and gas wells | US12790151 | 2010-05-28 | US08936095B2 | 2015-01-20 | Murat Ocalan; Manuel Marya |
| An apparatus and method of conveying magnetic particles into a wellbore is disclosed. A plurality of particles which are magnetically attracted to one another in response to exposure to a magnetic field are delivered downhole via a degradable material. The degradable material confines the particles and conveys the particles to a desired location downhole. The structure comprising the degradable material and the confined particles can be lowered into a subterranean well by a cable or wire, or alternatively released into the well under the influence of gravity and flow induced forces. The material degrades in response to conditions encountered in a subterranean environment thus releasing the particles. | ||||||
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