| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Subsurface safety valve and method for communicating hydraulic fluid therethrough | US10635076 | 2003-08-06 | US06880641B2 | 2005-04-19 | Stuart M. Dennistoun; Roddie Robert Smith; Imre I. Gazda |
| A system for communicating hydraulic fluid to a wireline retrievable safety valve (44) comprises a tubing retrievable safety valve (50) having a non annular hydraulic chamber (60) in a sidewall portion thereof and a communication tool (100) that is selectively locatable within the tubing retrievable safety valve (50). The communication tool (100) creates a fluid passageway (150) between the non annular hydraulic chamber (60) and the interior of the tubing retrievable safety valve (50) by penetrating through the sidewall portion and into the non annular hydraulic chamber (60). Thereafter, when the wireline retrievable safety valve (44) is positioned within the tubing retrievable safety valve (50), hydraulic fluid is communicatable thereto through the fluid passageway (150). | ||||||
| 162 | Subsurface safety valve lock out and communication tool and method for use of the same | US10292223 | 2002-11-12 | US06742595B2 | 2004-06-01 | Stuart M. Dennistoun; Roddie Robert Smith; Imre I. Gazda |
| A communication tool (100) for communicating hydraulic fluid through a tubing retrievable safety valve (50) is disclosed. The tool (100) has a first section (102) and a second section (132) that are initially coupled together. A set of axial locating keys (112) is operably attached to the first section (102) and is engagably positionable within a profile (62). A radial cutting device (148) is radially extendable through a window (152) of the second section (132). A circumferential locating key (140) is operably attached to the second section (132) and is engagably positionable within a pocket (66) of the safety valve (50) when the first and second sections (102, 132) are decoupled, thereby circumferentially aligning the radial cutting device (148) with the non annular hydraulic chamber (60). | ||||||
| 163 | Central circulation completion system | US10276135 | 2002-10-21 | US20040074635A1 | 2004-04-22 | Graeme John Collie; David Ramsay Hutchison; Richard Kent |
| A completion system comprises a christmas tree (10) mounted on a wellhead housing (11), a tubing hanger (12) landed in the tree or wellhead housing, the wellhead housing (11) being mounted on a casing string (100) and a tubing string (14) being suspended from the tubing hanger within the casing string; wherein, in use, the annulus defined between the tubing (14) and the casing (100) serves as a production bore. A second tubing string (98) is expanded into sealing engagement with the casing string (100) over at least a portion of their lengths. The annulus normally used to provide well service functions is thus eliminated. Well servicing is instead provided via the tubing string (14), which may be coiled tubing. | ||||||
| 164 | Deformable member | US10336848 | 2003-01-06 | US20030217844A1 | 2003-11-27 | Peter Barnes Moyes |
| A deformable member can be used in a well tool for use in downhole oil/gas wells. In one embodiment, a deformable member (46) is described which is deformable between undeformed and deformed positions, and comprises a generally hollow cylindrical body (48) defining a wall (50). The wall (50) includes three circumferential lines of weakness in the form of grooves, with two grooves (52, 54) provided in an outer surface (56) of the member wall (50), and the other groove (58) provided in an inner surface (60). The member (46) is deformed outwardly by folding about the lines of weakness (52, 54, 56) and is used in particular to obtain sealing contact with a tube in which the member (46) is located. | ||||||
| 165 | Subsurface safety valve lock out and communication tool and method for use of the same | US10292223 | 2002-11-12 | US20030070817A1 | 2003-04-17 | Stuart M. Dennistoun; Roddie Robert Smith; Imre I. Gazda |
| A communication tool (100) for communicating hydraulic fluid through a tubing retrievable safety valve (50) is disclosed. The tool (100) has a first section (102) and a second section (132) that are initially coupled together. A set of axial locating keys (112) is operably attached to the first section (102) and is engagably positionable within a profile (62). A radial cutting device (148) is radially extendable through a window (152) of the second section (132). A circumferential locating key (140) is operably attached to the second section (132) and is engagably positionable within a pocket (66) of the safety valve (50) when the first and second sections (102, 132) are decoupled, thereby circumferentially aligning the radial cutting device (148) with the non annular hydraulic chamber (60). | ||||||
| 166 | Apparatus and method to shut down a pipeline | US09582462 | 2000-08-17 | US06408944B1 | 2002-06-25 | Juhani Niinivaara; Tarmo Niinivaara; Tero Hurtta |
| For an apparatus and method to shut down pipelines, an apparatus frame is supported by the pipe to be shut down, and includes a pointed drill and a drill cylinder to drill a hole, essentially similar in diameter size with the plug cylinder or, when in the same temperature, essentially smaller in diameter size than the plug cylinder, through the pipe to be shut down. The apparatus includes a plug cylinder and equipment for installing the plug cylinder in the drill hole. There is a channel inside the drill cylinder and/or plug cylinder and/or shaft to feed a coolant, a flowing substance, preferably hydrogen, carbonic acid, or other such substance, cooling and at the same time reducing the size of the plug cylinder until it is inserted in the drilled hole. After the plug cylinder has been inserted, the flow of the coolant stops. As a result, the temperature of the plug cylinder increases, and the size of the plug cylinder increases as well. Thus, the seal created by the plug cylinder in the drilled hole is fortified. | ||||||
| 167 | Subsea dual in-line ball valves | US138687 | 1998-08-24 | US6152229A | 2000-11-28 | Charles E. Jennings |
| A dual in-line ball valve assembly for a subsea tree intervention tool has a pair of axially-movable pistons and a rotatable linkage member pinned between each of the pistons and the independently operable ball valves. The linkage members have eccentric hubs which rotate the ball valves between open and closed positions when the pistons are axially actuated. A recess is formed in each ball valve adjacent to the central flow passage of the assembly for accommodating a lower side of tubing or wireline. The recesses prevent shearing of the tubing or wireline in two places when one of the valves moves to the closed position. | ||||||
| 168 | System for controlling and stopping oil drilling fires | US332681 | 1999-06-14 | US6125928A | 2000-10-03 | Tarmo Ninivaara; Tero Hurtta; Juhani Ninivaara |
| System for controlling oil well fires by blocking the production or drilling pipes. A box incorporating a movable piston is fitted around the pipe. The piston carries, on its forward end, a drilling cylinder (3), which can be brought to the pipe by a hydraulic piston-cylinder arrangement. Subsequently, the drilling cylinder drills through the pipe wall and after that the drilling cylinder or a separate plugging cylinder (4) is left in the drilled hole and blocks the fluid flow through the pipe. The process is remote controlled. | ||||||
| 169 | Shearable completion riser joint | US111922 | 1993-08-26 | US5979943A | 1999-11-09 | Jose Roberto Ferreira Moreira; Orlando Jose Soares Ribeiro |
| The present invention refers to a completion riser joint (1) shearing by the shear ram of the blow-out preventer (BOP) (2), to be coupled, at its lower part, to the column hoist running tool and, at its upper part, to the completion riser column, the referred shearing completion riser joint (1) comprising upperly a riser bolt (3), connected at its lower portion to an access pipe (4) to the production column, shearing by the shear ram of the BOP (2), enveloped by hydraulic lines (5, 6) that allow the actuating of the column hoist running tool and the access to the annular, the referred pipe (4) being connected lowerly to a re-entry mandrel (8), which function is to allow the locking of the recovery tool (12) and, through it, allow the hydraulic continuity for actuating the unlocking function of the piping hoist and, following, its release, and lowerly to a riser box (9) on top of the piping hoist running tool. | ||||||
| 170 | Submersible work vessel for installing a blow out preventer | US971161 | 1997-11-14 | US5931442A | 1999-08-03 | Emmette L. Cummins |
| A submersible work vessel and a method of using the same are disclosed. The vessel contains an internal work space. It also contains a set of openable jaws that are designed to engage an underwater pipe. When the pipe is engaged, it will pass through the internal work space of the submersible work vessel. When the jaws have engaged the pipe, the internal work space should be substantially watertight, at which point the water in internal work space may be pumped out. When the water has been substantially evacuated, a worker may enter the internal work space and work on the pipe. One of the principal tasks the work vessel is designed to facilitate is the installation of a blow out preventer. The worker will install the blow out preventer on the pipe. The blow out preventer is designed to remove a section of the pipe and then to seal the severed pipe. This is preferably done with a cutter mounted on a hydraulic arm and a sealing block also mounted on a hydraulic arm. Positioning the sealing block over the severed pipe will cut off flow through the pipe. When the restoration of flow is desired, the block may be removed, allowing the blow out preventer to function as a valve. | ||||||
| 171 | Well plugging apparatus and method | US723355 | 1996-09-30 | USRE36244E | 1999-07-06 | Bruce Matthews |
| An apparatus for plugging a burning or gushing well comprises a hollow tubular plug body (20) sized for insertion into a well casing (112). Provided on the plug body are a retainer module (54) for retaining the plug within the well casing; a sealing sleeve (46) provided for forming a seal between the plug body and the well casing; and a valve assembly (50) for selectively closing a hollow internal passageway of the tubular plug body. The plug body is loaded on a gantry assembly (21), which in turn is carried by a shielded vehicle (24). At the base of the gantry assembly are provided an alignment assembly (37) for aid in approach to the well casing and a cutter assembly (40) for sawing off inordinately protruding casings. In one embodiment, a protective break-away shell (118) circumferentially surrounds at least a portion of the plug body. | ||||||
| 172 | Shearing gate valve | US521677 | 1995-08-31 | US5803431A | 1998-09-08 | Loc Gia Hoang; Brian Haynes |
| The shearing gate valve includes a gate reciprocably mounted between opposing seat rings. The gate has an opening which aligns with bores in the mating seat rings. The opening in the gate and the bores of the seat rings each have a cutting recess. The cutting recess in each mouth of the opening of the gate is formed by a counterbore which is filled with a weld overlay material that bonds with the material of the gate. A layer of hard facing material covers the sides of the gate and also extends over the bond formed between the gate and weld overlay material but does not completely cover the weld overlay material thus forming the cutting recess. The cutting recess has a depth equal to the thickness of the hard facing material. The weld overlay material is hard so as to prevent the formation of an upset which will score or gall the sealing surfaces between the gate and seat rings. | ||||||
| 173 | Apparatus for cutting columnar structures with reciprocally movable tensioned cutting wire | US167092 | 1993-12-16 | US5524517A | 1996-06-11 | Jerry H. Robinson |
| Systems and methods for cutting a well casing and then capping the cut well casing are provided. A well casing cutting assembly having a tensioned wire cutting element may first be moved into position relative to the well casing and operated so that the cutting element reciprocates transversely (i.e., in saw-like fashion) while simultaneously being advanced forwardly into cutting relationship with the well casing. The cutting assembly is removed from the cut well casing and replaced with a well capping assembly having a shield enclosure and a thread cutting subassembly. The thread cutting subassembly includes an interiorly threaded pipe coupling which rigidly carries a normally open, remotely controlled valving assembly and is mounted to the shield enclosure so as to be capable of both rotational and vertical movements relative to the cut well casing. By simultaneously rotating and downwardly displacing the thread cutting element, threads will be formed on the exterior surface of the well casing and will threadably couple the pipe coupling automatically thereto. The valving mechanism may then be operated so as to cap the well casing. Structure is provided which enable quick disassembly of the thread cutting subassembly from the pipe coupling so that the well capping assembly can be removed and reused. | ||||||
| 174 | Device for cutting a pipe in order to stop a fluid flow | US193156 | 1994-02-09 | US5509440A | 1996-04-23 | Elie Cantaloube; Yves Cantaloube |
| Device for cutting a pipe (1) transporting fluid in order to stop the circulation of the fluid at any point, comprising a casing (2, 3) susceptible of being sealingly mounted on the pipe (1). The casing (2, 3) contains at least one blade (8) which is driven in rotation and feed motions so as to cut off the pipe (1) by sawing it transversely. The blade (8) forms a stop surface to the circulation along the section plane of the saw blade. The device is useful in the cutting of fluid flow in pipes and particularly in the case of accidents such as fires in oil wells. | ||||||
| 175 | Pipe threading apparatus | US849711 | 1992-03-11 | US5285706A | 1994-02-15 | Jerry H. Robinson |
| Systems and methods for cutting a well casing and then capping the cut well casing are provided. A well casing cutting assembly having a tensioned wire cutting element may first be moved into position relative to the well casing and operated so that the cutting element reciprocates transversely (i.e., in saw-like fashion) while simultaneously being advanced forwardly into cutting relationship with the well casing. The cutting assembly is removed from the cut well casing and replaced with a well capping assembly having a shield enclosure and a thread cutting subassembly. The thread cutting subassembly includes an interiorly threaded pipe coupling which rigidly carries a normally open, remotely controlled valving assembly and is mounted to the shield enclosure so as to be capable of both rotational and vertical movements relative to the cut well casing. By simultaneously rotating and downwardly displacing the thread cutting element, threads will be formed on the exterior surface of the well casing and will threadably couple the pipe coupling automatically thereto. The valving mechanism may then be operated so as to cap the well casing. Structure is provided which enable quick disassembly of the thread cutting subassembly from the pipe coupling so that the well capping assembly can be removed and reused. | ||||||
| 176 | Well casing and well casing method | US842027 | 1992-02-25 | US5219028A | 1993-06-15 | James W. Martin; Edward G. Dew |
| The present invention provides a preperforated casing for a well bore and a method of installing a preperforated casing in a well bore. The inventive casing comprises (a) a conduit having a plurality of apertures extending through the wall thereof and (b) a liner fixed adjacent at least a portion of the interior surface of the conduit such that the liner is positioned adjacent the apertures and is operable for preventing fluid flow through the apertures. The liner is removable from the conduit by drilling. Additionally, the liner comprises a material which, upon drilling, will break up into pieces which can be readily circulated out of the well. The inventive method comprises the steps of running the inventive casing into a well bore and then drilling the liner such that the liner is broken up into pieces and the above-mentioned apertures are open for fluid flow. | ||||||
| 177 | Wire cutting valve actuator | US585721 | 1990-09-19 | US5178360A | 1993-01-12 | Terry G. Young |
| The invention is a valve actuator or a booster module for an existing valve actuator that provides an incremental force to the valve stem at a position close to valve closure. The force is stored in a spring which is held in the compressed position by a collet. Upon sufficient movement of the valve actuator stem in the direction towards valve closure, the collet which had previously held the spring in a compressed position is freed to move to allow the spring to expand against the collet. Since movement of the collet has caused it to be engaged to the valve actuator stem, the spring forces are transmitted directly to the valve actuator stem via the collet. The spring is oriented in a direction substantially parallel to the valve stem so that substantially all of its retained energy is transmitted directly to the valve stem through the collet. | ||||||
| 178 | Valve | US310697 | 1989-02-15 | US5050839A | 1991-09-24 | Rennie L. Dickson; Craig W. Godfrey; Kenneth L. Schwendemann; Timothy J. Noack |
| A valve employing a coupling disk to rotate the valve member so that rotative force is applied to the valve member in a direction away from the seat during opening of the valve and/or in a direction toward the seat during closing of the valve. Closing force is provided by a spring in a dome chamber and a gas charge in the dome chamber. A float valve controls fluid entry into the dome chamber to trap the gas charge therein while permitting the introduction of liquid from a balance-closure assist line to increase the pressure of the gas charge and assist in closing the valve member. | ||||||
| 179 | Coiled tubing velocity string hangoff method and apparatus | US554248 | 1990-07-17 | US5027903A | 1991-07-02 | Thomas C. Gipson |
| A method and apparatus for hanging off a coiled tubing velocity string in an existing, active gas production well. The method allows for the "hot" tapping into a charged coiled tubing run thereby eliminating the need for an end plug and blow out equipment on site. A sealed cutter assembly is connected to the hangoff assembly, the charged coiled tube is cut, and back pressure leakage is avoided by the use of a hangoff head which seals in two directions. The cutter assembly is removed and the coiled tubing velocity string is piped to a new sales line. | ||||||
| 180 | System for handling reeled tubing | US471788 | 1990-01-29 | US4986360A | 1991-01-22 | Tibor Laky; Stewart H. Fowler, Jr. |
| A fluid handling system with an injector in an enclosure and at least one stripper with upper and lower cup-shaped receptacles and resilient seals in the receptacles together with a fluid relief port between the receptacles for recovering fluid passing the seals. | ||||||
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