| 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 | Cutting tool and method of cutting an object in a well | US10708998 | 2004-04-06 | US07128155B2 | 2006-10-31 | Brian W. Cho |
| A cutting device cuts one or more downhole control lines such that the cut ends of the one or more control lines will not interfere with subsequent fishing operations. The cutting device comprises a mandrel, a cutting sleeve and a housing supported on a tubing. Movement of the tubing induces relative motion of the cutting sleeve to cut the one or more control lines. | ||||||
| 162 | Method for releasing cables from an attached well tool and apparatus for excercising the method | US10532215 | 2002-10-24 | US20060011338A1 | 2006-01-19 | Jorgen Hallundbaek |
| In a method for releasing cables (2) from an attached well tool, where the cutting and the time for cutting can be decided from the surface above the well, and where a cable cutter (6) is arranged between the main part of a cable and a well tool, said cubic culler being controlled by a timer, it is suggested that at least three parameters are used for controlling the cutter, e.g. a pulling force exerted by the cable on the well tool, the pressure in the well location, and time, where the timer (1) is working electronically. | ||||||
| 163 | Cutting Tool | US10708998 | 2004-04-06 | US20050006102A1 | 2005-01-13 | Brian Cho |
| The present invention provides for a cutting device and associated method to cut one or more downhole control lines such that the cut ends of the one or more control lines will not interfere with subsequent fishing operations. | ||||||
| 164 | Control line cutting tool and method | US09839187 | 2001-04-19 | US06789627B2 | 2004-09-14 | Dwayne D. Leismer |
| An apparatus includes a first member, a second member releasably attached to the first member, and a control line shear mechanism disposed proximate an interface between the first member and the second member. The first and second members can each have a longitudinal bore therethrough and can be moveable in an axial direction to release from one another. The control line shear mechanism may comprise a first shear member attached to the first number and a second shear member attached to the second member, wherein the first and second shear members are adapted to cooperatively shear a control line as the first and second members separate. A method includes separating a first member from a second member and, before or during the separating step, cutting a control line proximal to the paint of separation of the first and second members. | ||||||
| 165 | High torque and high capacity rotatable center core and floatable sealed body assemblies with universals ram applications and method | US10190193 | 2002-07-03 | US06651746B2 | 2003-11-25 | Anthony R. Boyd |
| A high torque and high capacity rotatable center core and floatable sealed body apparatus with universal ram applications. The apparatus includes a central core assembly, connected between a swivel on its upper end and the work string below, with the central core assembly having a central passageway therethrough. The apparatus further includes a first outer assembly, having a central bore for slidably engagement around a portion of the central core assembly. In one embodiment, a second outer assembly is included, with the second outer assembly having a central bore for slidably engaging around a portion of the central core assembly above the first outer assembly. A pair of opposing transverse bores is contained within both of the first and second outer assemblies, corresponding to a pair of transverse bores in the central core assembly. The apparatus further includes sleeve members for aligning the bores of the central core assembly and the first and second outer assemblies; and rams positional in the transverse bores in the first and second outer assemblies for sealing off the passageway in the central core assembly when moved to the sealing position. A method of sealing a work string on a drill rig is also disclosed. | ||||||
| 166 | High torque and high capacity rotatable center core and floatable sealed body assemblies with universal RAM applications and method | US09994161 | 2001-11-26 | US06637516B1 | 2003-10-28 | Anthony R. Boyd |
| A high torque and high capacity rotatable center core and floatable sealed body assembly with universal ram applications and method for use in a drill string, including a central core assembly, connected between a swivel on its upper end and the drill string below, having a central passageway therethrough; a first outer assembly, having a central bore for slidably engagement around a portion of the central core assembly; a second outer assembly, having a central bore for slidably engaging around a portion of the central core assembly above the first outer assembly; a pair of opposing transverse bores in both the first and second outer assemblies, corresponding to transverse bores in the central core assembly; sleeve members for aligning the bores of the core assembly and the first and second outer assemblies; and rams positionable in the transverse bores in the first and second outer assemblies for sealing off the passageway in the central core assembly when moved to the sealing position. | ||||||
| 167 | Tubing hanger with lateral feed-through connection | US09848898 | 2001-05-04 | US06609567B2 | 2003-08-26 | Gary Ingram; Patrick J. Zimmerman |
| A packer and method for sealing an annulus in a wellbore is provided. In one aspect the packer comprises a body having one or more conduits formed there-through; a chamber disposed within the body, wherein the chamber is in fluid communication with each of the one or more conduits; and an aperture for pressurizing the chamber. In another aspect, the packer comprises a body having one or more conduits formed there-through; a lock body disposed on a first end of the body; a collapsible member threadably engaged to the body at a first end and shouldered against the lock body at a second end; and a slideable member disposed within the collapsible member. In yet another aspect, the packer comprises a body having one or more conduits formed there-through, wherein the one or more conduits comprises an enlarged first end; and a cutting member disposed with the enlarged first end. | ||||||
| 168 | Tubing hanger with lateral feed-through connection | US09848898 | 2001-05-04 | US20020162667A1 | 2002-11-07 | Gary Ingram; Patrick J. Zimmerman |
| A packer and method for sealing an annulus in a wellbore is provided. In one aspect the packer comprises a body having one or more conduits formed there-through; a chamber disposed within the body, wherein the chamber is in fluid communication with each of the one or more conduits; and an aperture for pressurizing the chamber. In another aspect, the packer comprises a body having one or more conduits formed there-through; a lock body disposed on a first end of the body; a collapsible member threadably engaged to the body at a first end and shouldered against the lock body at a second end; and a slideable member disposed within the collapsible member. In yet another aspect, the packer comprises a body having one or more conduits formed there-through, wherein the one or more conduits comprises an enlarged first end; and a cutting member disposed with the enlarged first end. | ||||||
| 169 | Shearing gate valve | US09610392 | 2000-07-05 | US06454015B1 | 2002-09-24 | John Taylor Armstrong; Ian Gourlay; Peter Kent; Chau Hoang |
| A gate valve has downstream shear and seal capabilities in which the gate will stroke far enough to cover the downstream seat interface, and has a single shearing surface for shearing of a wireline. The gate has an inlay of a hard ductile material such as Stellite® along the shearing edge of the gate. The gate also has a coating of an extremely hard material such as tungsten carbide on the sealing surface of the gate. The seat also has an inlay of a hard ductile material such as Stellite® along its shearing edge. The gate fully covers and seals the upstream seat interface after the shear media has fallen below the upstream gate/seat interface. An upstream lip seal for the upstream seat ring is energized to seal on upstream pressure. | ||||||
| 170 | Controlled breaking of cables in a well casing | US09721934 | 2000-11-27 | US06296053B1 | 2001-10-02 | Henning Hansen |
| A pipe string in an oil well has a cable 2 slidingly attached along it. It may be necessary to break the pipe string. Apparatus is provided for controlling the position of a fracture in the cable, as it is desirable to break the cable at about the same point. The apparatus comprises a pocket 1 attached to the cable and having a passage through which the cable passes, and upper and lower nipples 5 and 6 attached to the cable in the pocket. The lower face 5′ of the nipple 5 is skewed relative to the lower internal face 3′ of the pocket and the facing faces (5″, 6′) of the two nipples are skewed relative to each other, so bending and kinking the cable when tension is applied. The cable therefore breaks at the bend or kink. The pipe string includes a plurality of such apparatuses located at spaced points along its length. | ||||||
| 171 | Apparatus and method for cutting wire | US635147 | 1996-04-23 | US5720348A | 1998-02-24 | Jack C. Hisaw |
| A device for cutting a wire line is disclosed. Generally, the device comprises a tubular member having an inner diameter therethrough for placement of the wire line. A power mandrel is associated with the tubular member. A housing is operatively associated with the mandrel. Also included will be a rotatable cutting blade pivotally attached to the housing, and selective attachment means (operatively associated with the mandrel and the housing) for selectively attaching the mandrel and the housing together. The device may contain an activating member for activating the rotatable cutting blade into engagement with the wire so as to cut the wire. The device may further comprise a wire wedge member, positioned within the mandrel slot, that is adapted to wedge the wire into engagement with the mandrel. In one embodiment, the rotatable cutting blade comprises a disc member having a channel therethrough for receiving the wire, with the channel having sides contoured to cut the wire. | ||||||
| 172 | Gate valve | US137653 | 1993-10-15 | US5370362A | 1994-12-06 | Peter M. Kent; Anton J. Dach; Hernani G. Deocampo; Ted D. Williams |
| An improved gate for a gate valve will allow shearing of a wireline extending through the gate valve while preserving post-shear seal integrity. The improved gate comprises an inlay of a hard ductile material such as Stellite along the shearing edge of the gate. The gate also comprises a coating of an extremely hard material such as tungsten carbide on the sealing surface of the gate. The invention also covers an improved gate seat. The improved seat also comprises an inlay of a hard ductile material such as Stellite along its shearing edge. The improved seat can also have a coating of an extremely hard material such as tungsten carbide on part of its sealing surface. | ||||||
| 173 | Downhole safety valve for subterranean well and method | US426762 | 1989-10-26 | US4944351A | 1990-07-31 | Erik P. V. Eriksen; Brian K. Drakeley; Michael A. Carmody |
| A method and apparatus for replacing a defective downhole well safety valve of the full bore type by a wireline valve sealably insertable in the bore of the housing for the defective valve by wireline and operating the wireline inserted safety valve by fluid pressure supplied through an existing control fluid passage provided in the original safety valve housing. An internally projecting integral protuberance is provided in the bore of the original safety valve housing and a connecting fluid conduit is provided between the interior of the protuberance and the existing control fluid passage. A cutting tool is mounted on an axially shiftable sleeve disposed immediately above the protuberance. The axially shiftable sleeve is manipulated by an auxiliary tool temporarily inserted in the bore of the original valve housing and causing the cutting tool to remove the protuberance and thus establish fluid communication for the control fluid with the internal bore of the original safety valve housing. The insertion of a conventional in-tubing safety valve apparatus will permit such apparatus to be operated by control fluid pressure supplied through the opening provided by the severed or removed protuberance. | ||||||
| 174 | Wireline safety mechanism for wireline tools | US257693 | 1988-10-14 | US4886115A | 1989-12-12 | Henry H. Leggett; Howard R. Kitney |
| A pressure containing wireline safety mechanism for wireline assemblies incorporates a tubular body for attachment between the lubricators and stuffing box of the wireline assembly. An inner housing is releasably retained within the tubular body and is provided with a wireline cutter to cut the wireline and release a wireline tool string that is stuck in a position blocking closure of the wellhead saftey valves and the wireline blowout preventor. The inner housing also incorporates a valve mechanism that automatically forms a pressure containing seal after the wireline has been cut to thus permit the stuffing box to be removed and another wireline assembly installed above the first wireline assembly for removing the inner housing and releasing the stuck wireline tool string. | ||||||
| 175 | Well servicing system | US202361 | 1988-06-06 | US4825953A | 1989-05-02 | Kwok-Ping Wong; Peter Cowan |
| Disclosed is a wireline well servicing system for underwater wells utilizing a lubricator stack having upper and lower sections connected by a remotely operable connector. The lower lubricator section includes a remotely operable valve connectable to a wellhead and a stress joint connected on the valve. The valve may be closed to retain pressure control of the well if the stress joint is fractured in bending by side loading on the lubricator stack. The upper lubricator section includes a remotely operable wireline clamp and cutter unit on a stuffing box. The clamp and cutter are remotely operable by the same control conduit to quickly clamp and cut the wireline to permit emergency removal of the surface service vessel. After the service vessel has moved back into working position above the underwater well, wireline servicing operations may be continued by latching onto the clamp cutter unit with a pulling tool on wireline from the vessel, and lifting the clamp cutter unit while pulling the cut wireline through the stuffing box until the tools attached to the wireline reach top in the upper lubricator section. The upper lubricator section is disconnected from the lower section and lifted to the vessel to prepare the clamp and cutter unit for further operation and replace the cut wireline with continuous line. | ||||||
| 176 | Cable cutting coupling for drilling, production, well logging or other operations in wells | US870946 | 1986-06-05 | US4738312A | 1988-04-19 | Christian Wittrisch |
| A cable cutting sub or coupling for drilling, production, well logging or troubleshooting operations in wells, comprising a drilling pipe in which a cable is engaged. This sub allowing the cable to be severed if required comprises a tubular body in which a liner may slide. The side wall of said tubular liner has an opening in which is engaged a member for severing the cable and said liner is movable from a first position offering free axial passage to the cable to a second position in which an internal shoulder of said liner urges the cable against said severing member. | ||||||
| 177 | Rotatable ball valve apparatus and method | US549256 | 1983-11-04 | US4681133A | 1987-07-21 | Harry Weston |
| A safety valve and method is disclosed having a housing in which a rotatable valve is disposed between upper and lower passages and lateral outlets. The ball has a removable insert such that in one position of the ball, the insert can be removed to provide full bore access in line with the wall. The housing may be incorporated with the tubing head or may be attached to the top of the tubing head. During insertion of or workover of tubing, a blowout preventer may be attached to the top of the valve housing. The ball may be rotated for closing off the flow path from the well below. A Christmas tree may be installed after the blowout preventer is removed. Diverter valves may be connected to the lateral outlets. "T" shaped passages in the ball insert may be aligned with the lateral outlets and the tubing to divert well fluid when desired via the diverter valves. The valve may be used as a master valve of a Christmas tree with a control valve attached to the lateral outlet. This abstract of the disclosure is neither intended to define the scope of the invention, which is measured by the claims, nor is it intended to limit the invention in any way. | ||||||
| 178 | Wireline cutting actuator and valve | US827201 | 1986-02-03 | US4671312A | 1987-06-09 | Billy R. Bruton |
| Disclosed is a wireline cutting actuator and valve assembly. The valve includes a valve body having a gate reciprocatingly mounted therein. The gate has a stepped bore. The actuator includes a bonnet adapted for connection to the valve body and an actuator shaft having an inner end adapted for connection to the valve member. The actuator shaft extends outwardly of the bonnet. An actuator housing is releasibly connected to the bonnet and positioned about the actuator shaft. A spring is provided for urging the actuator shaft outwardly with respect to the bonnet. A piston housing assembly is releasibly connected to the actuator housing. A piston is slidingly mounted in the piston and is abuttable with the outer end of the actuator shaft to urge the actuator shaft inwardly with respect to the bonnet. A piston shaft is inwardly and outwardly movable with the piston and extends outwardly of the piston housing. | ||||||
| 179 | Shear type gate valve | US787344 | 1985-10-15 | US4612983A | 1986-09-23 | Michael A. Karr, Jr. |
| A gate valve for cutting a wire line (20) and closing in a well has a gate assembly (24) formed of an upper gate (32) and a lower gate (34). The lower gate (34) closes first shearing the wire line. Upper gate (32) closes second and seals against upper valve seat (42). | ||||||
| 180 | Gate valve apparatus and method | US549255 | 1983-11-04 | US4572298A | 1986-02-25 | Harry Weston |
| Safety equipment for land or marine well completions is disclosed. In one embodiment of the invention a gate valve is provided in which the gate has a removable insert so that in one position of the valve, the insert can be removed (or inserted) via an upper vertical passage of the valve to provide full-bore access via an attached blowout preventer stack to the well head below.In another embodiment of the invention a gate valve is provided having at least two vertical passages through the gate. The first is large enough to provide full-bore access via an upper passage in the housing of the valve. The second is of a smaller diameter to provide vertical communication with tubing disposed in a lower vertical passage and in an upper vertical passage.Either of the above embodiments may be used in a lateral production tree where the gate is provided with an "L" or "T" shaped passage in another lateral portion of the gate and lateral outlets are provided in the valve housing.This abstract of the disclosure is neither intended to define the scope of the invention, which is measured by the claims, nor is it intended to limit the invention in any way. | ||||||
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