子分类：
- E21B29/002： .{用沿着管子周围转动的切割器切割管子,例如,研磨}
- E21B29/02： .使用炸药或热力或化学方法(通过爆炸释放粘住的物品入E21B31/002;通过爆炸破坏井眼或井中的物体入E21B31/16)
- E21B29/04： .切割钢丝绳或类似物(E21B29/02优先)
- E21B29/06： .切割窗口,例如,用于造斜器操作的定向窗口切割器(E21B29/005和E21B29/08优先;造斜器入E21B7/061)
- E21B29/08： .切割管道或使管道变形来控制液体流动(剪切型防喷器入E21B33/06)
- E21B29/10： .修复井筒,例如,调直
- E21B29/12： .专门适用于水下安装的(E21B29/08优先)
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Method for fixing well provided with casing by cement, and stage collar for fixing work | JP26229689 | 1989-10-09 | JPH02144492A | 1990-06-04 | GERII RII POOTAA; UIRIAMU BANKAA KEIDO |
| PURPOSE: To surely close a side discharge port of a casing against a cement flow by rotating a drive tool to form a passage passing through a cement cured in a chamber of a stage collar, and abutting the tool on a sleeve to move the sleeve to the position where a secondary discharge port can be closed. CONSTITUTION: A control sleeve drive tool 56 is lowered while turned, and cooperated with a stage collar 14 to crush and remove a solidified cement contained in a casing. When the drive tool 56 is advanced downwardly, at least one part of an annular projecting part 37a for sealing of an upper sleeve segment 29 is removed. Then, the drive tool 56 is brought into contact with the upper segment 29 of a compound sleeve, and the segment is advanced to the downwardly moved position, i.e., the intended closing position. An internal chamber of a casing, i.e., a center passage is isolated from a wellbore 10 by closing a side cement discharge port 27. COPYRIGHT: (C)1990,JPO | ||||||
| 62 | Rotary cutter for cable driven device | JP196785 | 1985-01-09 | JPS60234409A | 1985-11-21 | DAGURASU PATORITSUKU KERII |
| 63 | 电缆式电液控制割管工具 | CN201520924526.9 | 2015-11-19 | CN205117265U | 2016-03-30 | 生凯章; 单永斌 |
| 本实用新型涉及的电缆式电液控制割管工具，包括锚固模块和切割模块，所述锚固模块设置在后部，切割模块设置在前部，所述锚固模块由电液油源装置、环境压力平衡装置、电液驱动控制装置和锚固执行装置构成；通过本技术方案，采用模块化设计，利用电液系统功率重量比大、卸荷方便的特点，利用新的刀片进给机制，以实现锚固输出力大且可控、故障回收方便的特点，具备锚固状态预紧功能，以防止外界振动使得锚固失效进而提高切割作业稳定性之特性，具备切割范围裕度大的特点，避免井下套管变形而导致切割工作藕断丝连情况。所述刀片切割径向最大直径与刀头直径比为1.97:1，通过采用模块化设计，具有较高的互换性和维修方便的特点。 | ||||||
| 64 | WELL TOOL DEVICE WITH A FRANGIBLE GLASS BODY | EP17700035.3 | 2017-01-02 | EP3400367A1 | 2018-11-14 | HIORTH, Espen |
| A well tool device may include a housing having an inner surface defining a through bore, a frangible glass body with upper and lower chamfered supporting surfaces and a seat for supporting the frangible glass body in relation to the housing. Additionally, a sealing device is provided between the frangible disc and the seat. Further, the frangible glass body is provided as one glass body with a barrier portion supported by the seat and a neck portion protruding in the direction of the through bore, where the diameter of the neck portion is smaller than the diameter of the barrier portion. | ||||||
| 65 | Downhole valve assembly, actuation device for a downhole valve assembly and method of controlling fluid flow downhole | EP08252522.1 | 2008-07-24 | EP2022933B1 | 2018-08-15 | Burnett, William Stephen |
| A downhole valve assembly including a valve mounted in a tubular body, the valve moveable between an open and closed position. Movement is achieved by a fluid operated valve actuation mechanism located downhole of the valve having a fluid inlet port located uphole of the valve. A method of controlling fluid flow downhole is also described allowing the valve to be moved between the open and closed positions and between closed and open positions. | ||||||
| 66 | DOWNHOLE CUTTING TOOL | EP16833493.6 | 2016-07-15 | EP3332084A1 | 2018-06-13 | JOHNSON, Ashley Bernard; BATTOCCHIO, Francesco |
| A rotary tool for milling tubing in a borehole comprises at least one cutter with a cutter body and a cutting surface on the body. Each cutter is shaped and positioned on the tool so as to reduce tensile stress in the cutter, thereby reducing risk of the cutter becoming chipped or broken in use and produces swarf of reduced rigidity, less likely to form a blockage in the borehole. | ||||||
| 67 | BIT FOR DRILLING WITH CASING OR LINER STRING AND MANUFACTURE THEREOF | EP17177550.5 | 2017-06-23 | EP3269919A1 | 2018-01-17 | THIGPEN, Gary M.; CUILLIER DE MAINDREVILLE, Bruno; GALLEGO, Gilles |
A bit for drilling with a casing or liner string includes: a tubular stem made from a high strength metal or alloy; a head: having a cutting face with an inner cone, an outer shoulder, and an intermediate nose between the cone and the shoulder; attached to an end of the stem; and made from a nonferrous metal or alloy; a plurality of blades formed integrally with the head, made from the nonferrous metal or alloy, and each extending from a center of the cutting face to the shoulder; a plurality of superhard cutters mounted along each blade; a plurality of gauge pads formed integrally with the stem; and a flush joint formed between each blade and a respective gauge pad. A yield strength of the high strength metal or alloy is at least twice a yield strength of the nonferrous metal or alloy. |
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| 68 | A SPACE PROVISION SYSTEM USING COMPRESSION DEVICES FOR THE REALLOCATION OF RESOURCES TO NEW TECHNOLOGY, BROWNFIELD AND GREENFIELD DEVELOPMENTS | EP12807648.6 | 2012-07-05 | EP2729662B1 | 2017-10-04 | Tunget, Bruce A. |
| 69 | VALVE ASSEMBLY AND CONTROL METHOD FOR EXTRACTION WELLS UNDER EMERGENCY CONDITIONS | EP15801242.7 | 2015-10-22 | EP3209854A1 | 2017-08-30 | MOLASCHI, Claudio; MALIARDI, Alberto; NISTA, Alessio |
| A safety valve assembly for extradition of hydrocarbons includes a valve body including a passage duct, configured to be traversed by a production and/or drilling line. The valve body includes housings for a punch and counter-punch, arranged diametrically opposite to one another with a common longitudinal axis substantially perpendicular to the longitudinal axis of the valve. The punch slides linearly in a controlled manner in the housing along the axis which intersects the longitudinal axis of the pipe, and the counter-punch slides linearly in a controlled manner in the housing along the axis which intersects the longitudinal axis of the pipe. The punch and counter-punch are configured to allow the counter-punch to slidingly receive the punch in its interior to create two different shearing planes. The counter-punch includes a hollow part to slidingly receive the section of tubular material and the punch, in the linear movement during the shearing operation. | ||||||
| 70 | HIGH POWER LASER DECOMMISSIONING OF MULTISTRING AND DAMAGED WELLS | EP13899044 | 2013-12-13 | EP3080384A4 | 2017-08-30 | DEUTCH PAUL D; MARSHALL SCOTT A; GRUBB DARYL L; DE WITT RONALD A; ZEDIKER MARK S; FAIRCLOTH BRIAN O |
| High power laser systems, high power laser tools, and methods of using these tools and systems for opening up damaged wells and for cutting, sectioning and removing structures objects, and materials, and in particular, for doing so in difficult to access locations and environments, such as offshore, underwater, or in hazardous environments, such as nuclear and chemical facilities. And, high power laser systems, high power laser tools, and methods of using these systems and tools for providing rock-to-rock plugs for decommissioning of wells. | ||||||
| 71 | DOWNHOLE TOOL FOR GUIDING A CUTTING TOOL | EP15821462.7 | 2015-06-26 | EP3169866A1 | 2017-05-24 | WATSON, Brock; SCHULTZ, Roger |
| An apparatus that includes a guiding tool for transferring fluid pressure to movement of a cutting tool relative to the guiding tool while the cutting tool is cutting slots in a casing or formation via at least one nozzle disposed in the cutting tool. Furthermore, a method of cutting a slot in a casing or formation using the apparatus. | ||||||
| 72 | DECOMMISSIONING OFFSHORE OIL AND GAS WELLS | EP15795896.8 | 2015-05-12 | EP3145805A1 | 2017-03-29 | GARDER, Jean |
| Method and structures perform decommissioning of offshore oil and gas platforms with associated wells. By installing on a platform (1) a movable decommissioning rig tower (2) but stripping away most of the other structures and equipment on the platform (1), and specifically not providing supporting resources such as drilling mud and power, accommodation, etc. on the platform, it is possible for both the rig tower (2) and a further rig tower (28) installed on a jack up rig (20) located alongside the platform (1) to access the well bay (5) of the platform. Thereby, two wells may be accessed simultaneously through the same well bay (5) and respective decommissioning operations carried out simultaneously and independently. | ||||||
| 73 | METHOD AND APPARATUS FOR SEVERING A DRILL STRING | EP15717610.8 | 2015-04-17 | EP3132110A2 | 2017-02-22 | CHURCHILL, Andrew Philip |
| A downhole tool comprises a body having a fluid inlet and a fluid outlet and configured to accelerate fluid flowing along a fluid flow path from the inlet to the outlet. The fluid outlet is configured to provide a radially directed and substantially circumferentially continuous stream of fluid. The stream of fluid may be used to clean or cut downhole tubing, such as casing. | ||||||
| 74 | APPARATUS AND METHOD FOR ISOLATING A SECTION OF A PIPE RISER BORE IN THE COURSE OF RISER RENEWAL | EP14780299 | 2014-03-31 | EP2981668A4 | 2017-01-25 | BERUBE GUY; BROWN GRAHAM T; BLAIR TOM |
| The isolation tool works at depth in the bore of a pipe whose upper end is to be severed and replaced. The tool isolates the lower pipe bore from the upper bore so that flammable downhole fluid is prevented from reaching a welding site along the pipe wall. The tool incorporates: means for establishing a pair of axially spaced apart annular seals engaging the pipe inner surface; means for venting downhole fluid to ground surface; and means for monitoring for seal leakage. The tool is primarily mechanical in nature. It finds use in connection with off-shore platform riser renewal operations. | ||||||
| 75 | DOWNHOLE TUBULAR ASSEMBLY OF A WELL TUBULAR STRUCTURE | EP15165785.5 | 2015-04-29 | EP3088655A1 | 2016-11-02 | Hazel, Paul |
The present invention relates to a downhole tubular assembly configured to be mounted as part of a well tubular structure in a borehole of a well having a top. The downhole tubular assembly comprises a well metal tubing configured to be mounted as part of the well tubular structure, the well metal tubing having a longitudinal extension, a tubing length along the longitudinal extension, an inner diameter and an outer diameter defining a wall, and an inner face and an outer face. The downhole tubular assembly further comprises a tubular metal receptacle having an inner receptacle face and an outer receptacle face, a receptacle length and a first part closest to the top of the well, and having an inner receptacle diameter larger than the outer diameter of the well tubing part, and a second part extending from the first part towards the well metal tubing. The tubing length is larger than the receptacle length, and the wall of the well metal tubing extends inside the tubular metal receptacle along the entire length of the tubular metal receptacle, and the second part of the tubular metal receptacle is fastened to the outer face of the well metal tubing, thereby closing the tubular metal receptacle in one end and defining an annular space between the tubular metal receptacle and the well metal tubing. Furthermore, the invention relates to a well tubular structure for being arranged in a borehole in a well and to a downhole system configured to be arranged in a borehole of a well. Finally, the invention relates to a structure replacement method for replacing at least part of the well tubular structure of a downhole system.
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| 76 | CORRUGATED DOWNHOLE TUBULARS | EP03762789.0 | 2003-07-04 | EP1520084B1 | 2016-04-13 | SIMPSON, Neil, Andrew, Abercrombie; HARRAL, Simon, John |
| 77 | MACHINING APPARATUS | EP12738833 | 2012-01-16 | EP2667992A4 | 2016-02-10 | ANDA ROGER; KLEPPE MATZ |
| 78 | RETRIEVABLE SWELLABLE PACKER | EP11843796 | 2011-11-15 | EP2643546A4 | 2015-12-30 | SEVRE ALF K |
| A well tool can include a swellable material, and a degradable material which supports the swellable material, but which degrades in response to contact with a selected fluid in a well. A packer for use in a subterranean well can include a swellable material, and a degradable material which supports the swellable material. A method of unsetting a packer in a subterranean well can include the steps of, after the packer has been set in the well, exposing a degradable material of the packer to a selected fluid, thereby degrading the degradable material, and a seal element of the packer being unsupported by the degradable material in response to the exposing step. | ||||||
| 79 | WELLBORE CASING CUTTING TOOL | EP12837943 | 2012-09-28 | EP2766562A4 | 2015-11-18 | RUTTLEY DAVID J |
| 80 | KOBE SUB WITH INFLOW CONTROL, WELLBORE TUBING STRING AND METHOD | EP12803334 | 2012-06-20 | EP2721247A4 | 2015-11-11 | THEMIG DANIEL JON; COON ROBERT JOE |
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