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 |
|---|---|---|---|---|---|---|
| 141 | Multi-process electronic control valve system | US12849526 | 2010-08-03 | US08418770B2 | 2013-04-16 | Paul T. Pettit |
| A valve system has a main valve that is adjustable for output flow and pressure. The system also includes an output flow transducer, an output pressure transducer, and a fluid depth transducer. A microcontroller is operatively coupled to the valve, the output flow transducer, the output pressure transducer, and the fluid depth transducer. The microcontroller operates the valve to selectively control the output flow, the output pressure, and the fluid depth according to inputs received from a user. | ||||||
| 142 | Adjustable choke for oil and gas industry | US13095962 | 2011-04-28 | US08402996B2 | 2013-03-26 | Marvin G. Piwonka |
| The disclosure provides a choke with an actuator that contains various components within an actuator housing to adjust the choke, and the housing is configured to be fixedly attached with a relatively large shearing connection on an actuator adapter to resist large overpressure surges within the housing and around the components. The actuator further includes a thrust bearing mounted adjacent a shoulder in the housing and supporting a worm gear, so that any overpressure loads are directed to the shoulder of the housing and retained within the housing while the housing is retained by the shearing connection to the remainder of the choke. | ||||||
| 143 | METHOD OF DRILLING AND RUNNING CASING IN LARGE DIAMETER WELLBORE | US13645848 | 2012-10-05 | US20130043020A1 | 2013-02-21 | Erik P. Eriksen |
| A well is drilled and casing installed utilizing a casing drilling technique. A bottom hole assembly having a drill bit and a fluid diverter is secured to a string of drill pipe and installed within a casing string. Drilling fluid is pumped down the drill pipe string to cause the drill bit to rotate and drill the well while the fluid diverter is in a drilling mode position, At the total depth for the casing string, the operator moves the fluid diverter to a cementing position and pumps cement down the drill pipe and up the casing string annulus. After cementing, the operator moves the fluid diverter to a packer set position and again pumps drilling fluid down the drill string to set the packer. | ||||||
| 144 | Internal Blow Out Preventer | US13521564 | 2011-01-10 | US20120305102A1 | 2012-12-06 | 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. | ||||||
| 145 | Assembly for controlled delivery of downhole treatment fluid | US12627273 | 2009-11-30 | US08186437B2 | 2012-05-29 | Zheng Rong Xu; Jorge A. Lozada Pazzi; Kevin Odom |
| An assembly for delivery of treatment fluid at a target location downhole. The assembly is configured to avoid any substantial loss of treatment fluid in advance of reaching the target location in spite of low well pressure or a potentially excessive depth of the location. The assembly also allows for loading with treatment fluid from a downhole end thereof so as to avoid driving treatment fluid through the entirety of a tubular accommodating the assembly. The assembly may employ a spot valve to enhance filling with treatment fluid along with a backpressure valve coupled to the spot valve on-site so as to avoid premature loss of treatment fluid during a delivery application. | ||||||
| 146 | MATERIALS AND METHODS FOR TEMPORARILY OBSTRUCTING PORTIONS OF DRILLED WELLS | US13107871 | 2011-05-13 | US20110278011A1 | 2011-11-17 | Victor A. Crainich, JR.; Sidney D. Osborn |
| In various embodiments, provided are materials and methods for controlling the flow of water, steam, drilling fluid, hydraulic stimulation fluid, hydrocarbon (oil or gas), or combinations thereof, in drilled wells (such as enhanced geothermal system wells, oil wells, or natural gas wells) by at least partially and temporarily obstructing one or more of a geologic fracture, perforation, or wellbore in a reversible manner. | ||||||
| 147 | ADJUSTABLE CHOKE FOR OIL AND GAS INDUSTRY | US13095962 | 2011-04-28 | US20110266478A1 | 2011-11-03 | Marvin G. PIWONKA |
| The disclosure provides a choke with an actuator that contains various components within an actuator housing to adjust the choke, and the housing is configured to be fixedly attached with a relatively large shearing connection on an actuator adapter to resist large overpressure surges within the housing and around the components. The actuator further includes a thrust bearing mounted adjacent a shoulder in the housing and supporting a worm gear, so that any overpressure loads are directed to the shoulder of the housing and retained within the housing while the housing is retained by the shearing connection to the remainder of the choke. | ||||||
| 148 | Gate Valve Rotary Actuator | US12663414 | 2008-06-09 | US20100171056A1 | 2010-07-08 | Loc Gia Hoang |
| A valve actuator comprising a screw member coupled to a valve stem and a sleeve such that rotation of the sleeve causes translation of the valve stem. The sleeve has a first end that is rotatably coupled to a housing that is fixably coupled to a valve body and a second end that projects out of the housing. The valve stem is partially disposed within the sleeve and extends into the valve body. A transmission is coupled to the housing and engaged with the sleeve. A motor is coupled to the transmission so that operation of the motor causes rotation of the sleeve. | ||||||
| 149 | Automated flowback and information system | US11731382 | 2007-03-29 | US07621324B2 | 2009-11-24 | Don Atencio |
| An automated flowback system allows control and operation of the system from a remote location away from the dangers of high-pressure gases or abrasives traveling at high velocities that cause damage or failure to equipment piping valves. The system provides techniques and mechanical components installed in flowlines in any position without having to cut and thread, weld or fabricate pipe to fit. This system includes an expansion sub with axial adjusting lengths adequate to compensate for variations between two points. The expansion sub is secured and installed into position eliminating field cut and threading, welding or fabrication. The system also includes a blast barrel with an installed choke nipple, choke bean or choke insert with a chosen orifice size for multiple chambered ports. The blast barrel retracts between two fixed points without having to dismantle any connections or be removed from the fluid flow. | ||||||
| 150 | Oilfield Apparatus Comprising Swellable Elastomers Having Nanosensors Therein And Methods Of Using Same In Oilfield Application | US11564467 | 2006-11-29 | US20080125335A1 | 2008-05-29 | Rashmi B. Bhavsar |
| Apparatus, oilfield assemblies, and methods of use are described. The apparatus comprises, in one embodiment, a swellable elastomeric composition comprising a swellable elastomer and one or more nanosensors dispersed therein and shaped into an oilfield element. Methods of the invention comprise using an apparatus of the invention in an oilfield operation, thus exposing the oilfield element to an oilfield environment, and sensing one or more reservoir parameters. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b). | ||||||
| 151 | System and Method for Utilizing Nano-Scale Filler in Downhole Applications | US10905775 | 2005-01-20 | US20050161212A1 | 2005-07-28 | Dwayne Leismer; Yanmei Li |
| A system and method is provided for improving the life and/or function of downhole tools that operate in adverse subterranean environments. Polymeric components, such as seals, are formed with nano-scale filler material. The nano-scale filler material is dispersed in the polymeric material to substantially improve desired material properties. | ||||||
| 152 | Valve for hydrate forming environments | US10041914 | 2002-01-08 | US06688324B2 | 2004-02-10 | Loc G. Hoang; David Rhea Mefford |
| Methods and apparatus for allowing the injection of hydrate inhibitors into a valve cavity without washing out the valve seals, generally comprising a valve having a sealing member, such as a gate or a ball, that provides for fluid communication between the valve cavity and the valve flowbore. One embodiment of a valve constructed in accordance with the present invention is an expanded gate valve comprising a valve body having a flowbore intersecting a valve cavity and a gate assembly disposed within said cavity. The gate assembly is a parallel expanding gate assembly having ported, juxtaposed members that are moveable into a sealing arrangement with upstream and downstream valve seats disposed about the flowbore. The gate assembly further comprises a flow path that enables direct fluid communication between the aligned ports and the valve cavity. This flow path enables hydrate inhibitors injected into the valve cavity to flow freely into the port and the flowbore without crossing the sealing faces of the gate assembly. | ||||||
| 153 | Valve for hydrate forming environments | US10041914 | 2002-01-08 | US20030127141A1 | 2003-07-10 | Loc G. Hoang; David Rhea Mefford |
| Methods and apparatus for allowing the injection of hydrate inhibitors into a valve cavity without washing out the valve seals, generally comprising a valve having a sealing member, such as a gate or a ball, that provides for fluid communication between the valve cavity and the valve flowbore. One embodiment of a valve constructed in accordance with the present invention is an expanded gate valve comprising a valve body having a flowbore intersecting a valve cavity and a gate assembly disposed within said cavity. The gate assembly is a parallel expanding gate assembly having ported, juxtaposed members that are moveable into a sealing arrangement with upstream and downstream valve seats disposed about the flowbore. The gate assembly further comprises a flow path that enables direct fluid communication between the aligned ports and the valve cavity. This flow path enables hydrate inhibitors injected into the valve cavity to flow freely into the port and the flowbore without crossing the sealing faces of the gate assembly. | ||||||
| 154 | Fill up tool and mud saver for top drives | US09865089 | 2001-05-24 | US06571876B2 | 2003-06-03 | David D. Szarka |
| A tubular tool body carried at the end of a drilling rig top drive is received within a drill string being used as a landing string to position casing in a wellbore. External threads on the tool body can be mated with the box threads of the drill string to secure the top drive and drill string together for simultaneous drill string movement and fluid circulation. An annular seal carried about the tool body engages and seals with the internal wall of the drill pipe to prevent drilling fluid leakage when the tool body is received within the drill pipe without thread engagement. The tool has an internal check valve that opens to allow back flow of drilling fluid that may be displaced from the drill pipe as the pipe is lowered into the well. The check valve prevents standing fluid in the top drive from spilling onto the rig floor when the tool is withdrawn from the drill string. Pump pressure applied through the top drive axially moves the check valve against a biasing spring to open a bypass through the wall of the tool to permit forward circulation through the drill string and casing. The spring bias force is sufficient to withstand the hydrostatic force exerted by the standing column of fluid in the top drive and associated piping. | ||||||
| 155 | Fill up tool and mud saver for top drives | US09865089 | 2001-05-24 | US20020174988A1 | 2002-11-28 | David D. Szarka |
| A tubular tool body carried at the end of a drilling rig top drive is received within a drill string being used as a landing string to position casing in a wellbore. External threads on the tool body can be mated with the box threads of the drill string to secure the top drive and drill string together for simultaneous drill string movement and fluid circulation. An annular seal carried about the tool body engages and seals with the internal wall of the drill pipe to prevent drilling fluid leakage when the tool body is received within the drill pipe without thread engagement. The tool has an internal check valve that opens to allow back flow of drilling fluid that may be displaced from the drill pipe as the pipe is lowered into the well. The check valve prevents standing fluid in the top drive from spilling onto the rig floor when the tool is withdrawn from the drill string. Pump pressure applied through the top drive axially moves the check valve against a biasing spring to open a bypass through the wall of the tool to permit forward circulation through the drill string and casing. The spring bias force is sufficient to withstand the hydrostatic force exerted by the standing column of fluid in the top drive and associated piping. | ||||||
| 156 | Control system for deep set subsurface valves | US09574150 | 2000-05-18 | US06427778B1 | 2002-08-06 | Clifford H. Beall; Brian S. Shaw |
| The hydraulic control system for operating a flow tube in a subsurface safety valve is disclosed. An isolation piston is used in conjunction with an operating control line and an engagement control line. Both control lines run from the surface. The isolation piston is spring loaded to equalize pressure across a dynamic piston to allow the flow tube to be shifted by a power spring to allow in turn the subsurface safety valve to close. Application of pressure on the engagement control line directs pressure applied through the operating control line to the top of the dynamic piston thus shifting the flow tube downwardly to open the subsurface safety valve. In an alternative embodiment, a coaxial control line directs fluid to the top of the dynamic piston and additionally to a parallel path leading to the bottom of the dynamic piston where a control valve is mounted. The control valve can be actuated hydraulically, electronically or other ways such that when it is closed the pressure applied to the dynamic piston shifts the flow to open the subsurface safety valve. A loss of signal to the control valve equalizes the dynamic piston allowing the flow tube to shift. | ||||||
| 157 | Drain fitting for oil well tubing | US39093653 | 1953-11-09 | US2804829A | 1957-09-03 | MULLINS EDWARD J |
| 158 | Means for and method of draining well tubing preparatory to pulling same | US57150222 | 1922-06-28 | US1518865A | 1924-12-09 | MCKISSICK WILLIAM H |
| 159 | Annulus installed 6 zone control manifold | US15142837 | 2016-04-29 | US10145208B2 | 2018-12-04 | John Cochrane Leitch |
| A method of controlling a plurality of downhole tools in a wellbore, using first and second codes transmitted by hydraulic line to first address and then actuate the desired tool. A dedicated line is provided for terminating all actuated tools. | ||||||
| 160 | Drill string check valve | US14361235 | 2012-11-27 | US10088064B2 | 2018-10-02 | Andrew Churchill |
| A drilling method comprising running a drill string (12) part way into a bore (11); then pumping fluid through the drill string; then running the drill string further into the bore; and then reconfiguring a check valve (20) located towards the distal end of the drill string from a running configuration, in which the valve permits flow both up and down the string, to a drilling configuration in which the valve permits flow down through the string but prevents flow up through the string. | ||||||
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