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1. 发明公开

EP1871975A4 METHOD AND MEANS FOR PROVIDING TIME DELAY IN DOWNHOLE WELL OPERATIONS 审中-公开
标题翻译：方式和途径提供时间延迟运作良好
公开(公告)号：EP1871975A4
公开(公告)日：2017-04-05
申请号：EP06747614
申请日：2006-04-07
申请人： I-TEC AS
发明人： AKSELBERG FRANK
IPC分类号： E21B31/113
CPC分类号： E21B31/1135
摘要： The present invention relates to an apparatus and method for providing hydraulic load compensated time delay in downhole well operations. The apparatus includes a piston stem enclosed by a piston housing. An axial force, acting either in the direction of stretch or in the direction of compression, causes a pressure buildup in one of two hydraulic chambers which are each filled with an incompressible liquid and which are mutually connected through one or more throttle orifices. A sideways floating, supported piston sleeve is arranged between the piston stem and the piston housing. The piston sleeve is adapted to control the differential pressure across the throttle orifice(s) in such a manner that an increasing axial force will, in a predetermined manner, increase the differential pressure across the throttle orifice(s) and hence delay the flow-through of the incompressible liquid from one of the hydraulic chambers to the other chamber, which also causes a predetermined delay of the relative movement between the piston stem and the piston housing.

2. 发明授权

EP0927296B1 DOUBLE ACTING HYDRAULIC JAR 失效
标题翻译：双作用液压孔吹气装置
公开(公告)号：EP0927296B1
公开(公告)日：2003-02-26
申请号：EP97919166.5
申请日：1997-09-18
申请人： WEATHERFORD/LAMB, INC.
发明人： FRIIS, Niels, Christian, Olaf
IPC分类号： E21B31/113
CPC分类号： E21B31/1135
摘要： A jar mechanism is described as comprising an outer body member (2, 4, 9, 10, 14, 17), an inner body member (1, 5, 11) which is movably mounted on the outer body member (2, 4, 9, 10, 14, 17), and a fluid chamber (35, 37, 42) which is defined by the inner (1, 5, 11) and outer body members (2, 4, 9, 10, 14, 17). Firstly, a resistance mechanism (12, 13, 48, 50) is described which is in fluid communication with the fluid chamber (35, 37, 42). The inner (1, 5, 11) and outer body members (2, 4, 9, 10, 14, 17) are moveable relative to each other between a first configuration in which the resistance mechanism (12, 13, 48, 50) resists relative movement therebetween, and a second configuration in which the resistance mechanism (12, 13, 48, 50) substantially does not resist relative movement therebetween. The resistance mechanism (12, 13, 48, 50) comprises two valve devices (58), where each valve device (58) resists movement of fluid within the fluid chamber (35, 37, 42) in one direction and the valve devices (58) are arranged to resist the movement of fluid in opposite directions. A releasable locking mechanism (5, 8) is secondly described for locking the inner body member (1, 5, 11) with respect to the outer body member (2, 4, 9, 10, 14, 17), where a piston section (48, 50) permits a load to be applied between the body members after the locking mechanism (5, 8) has released. Optionally, there is at least one flow passage to permit fluid located in the annulus between the body members to flow from one side of the locking mechanism (5, 8) to the other.

3. 发明授权

EP0565500B1 Rock drilling device 失效
标题翻译：凿岩设备
公开(公告)号：EP0565500B1
公开(公告)日：1996-12-11
申请号：EP93850055.0
申请日：1993-03-23
申请人： ATLAS COPCO ROCKTECH AB
发明人： Rodert, Jörgen , Andersson, Kurt
IPC分类号： E21B1/04 , E21B31/113
CPC分类号： E21B31/113 , B25D2250/171 , E21B1/02

4. 发明授权

EP0456305B1 Hydraulic drilling jar 失效
标题翻译：液压震击
公开(公告)号：EP0456305B1
公开(公告)日：1996-02-28
申请号：EP91201019.6
申请日：1991-04-27
申请人： Anadrill International SA , SERVICES PETROLIERS SCHLUMBERGER
发明人： Askew, Warren
IPC分类号： E21B31/113
CPC分类号： G05D7/0186 , E21B31/1135

5. 发明公开

EP0503275A3 Large bore hydraulic drilling jar 失效
标题翻译：大型液压钻机
公开(公告)号：EP0503275A3
公开(公告)日：1993-05-19
申请号：EP92102083.0
申请日：1992-02-07
申请人： DAILEY PETROLEUM SERVICES CORP.
发明人： Evans, Robert W.
IPC分类号： E21B31/113
CPC分类号： E21B31/113
摘要： A double acting hydraulic drilling jar 1 includes a mandrel 2 arranged in a housing 3 for sliding longitudinal movement. A hammer 69 is positioned on the mandrel 2 and interacts with anvil surfaces 64, 66 in the housing 3 to deliver both upward and downward jarring forces to a drill string. A hydraulic valve arrangement permits the storage of large amounts of static force before releasing the hammer 69 to strike the anvil surfaces with great force. The hydraulic valve arrangement includes a tripping valve 95 positioned to be actuated by a first pair of engaging surfaces in response to downward movement of the mandrel 2 in the housing 3 and a second pair of engaging surfaces in response to upward movement of the mandrel 2 in the housing 3. Thus, independent control over the upward and downward jarring action is achieved.

6. 发明公开

EP0245892A2 Apparatus for vibrating a pipe string in a borehole 失效
标题翻译：弗罗里敦zumRüttelneines Bohrstranges在einem Bohrloch。
公开(公告)号：EP0245892A2
公开(公告)日：1987-11-19
申请号：EP87200739.8
申请日：1987-04-16
申请人： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人： Worral, Robert Nicholas , Stulemeijer, Ivo Petrus Jozef Maria
IPC分类号： E21B7/24 , E21B4/10 , E21B4/02 , E21B31/113
CPC分类号： E21B4/10 , E21B4/02 , E21B7/24 , E21B31/005 , E21B31/113 , E21B43/04
摘要： An apparatus for vibrating a pipe string in a borehole comprises at a downhole location a hydraulic motor having a stator part (2) and a rotor part (3), the stator part (2) forming part of the string (1) and the rotor part (3) being coupled to a percussion device (6) which longitudinally moves the rotor part (3) relative to the stator part (2) in an oscillating manner during the course of each rotation of the rotor part relative to the stator part.
摘要翻译：一种用于在钻孔中振动管柱的装置包括在井下位置具有定子部分（2）和转子部分（3）的液压马达，定子部分（2）形成弦线（1）的一部分和转子部分（3）联接到冲击装置（6），所述冲击装置（6）在转子部分相对于定子部分转动的过程中以振荡方式相对于定子部分（2）纵向移动转子部分（3）。

7. 发明授权

EP3420180B1 ADJUSTABLE HYDRAULIC JARRING DEVICE 有权
公开(公告)号：EP3420180B1
公开(公告)日：2021-06-30
申请号：EP17757071.0
申请日：2017-02-21
发明人： Evans, Robert W.
IPC分类号： E21B31/107 , E21B31/113

8. 发明授权

EP3265644B1 DOWNHOLE STROKING TOOL 有权
公开(公告)号：EP3265644B1
公开(公告)日：2019-08-14
申请号：EP16707455.8
申请日：2016-03-02
申请人： Welltec A/S
发明人： SOMMER, Rasmus
IPC分类号： E21B31/113 , E21B33/127 , E21B23/00 , E21B23/01 , E21B23/14 , E21B4/06 , E21B4/12 , E21B4/14

9. 发明公开

EP3461989A1 JARRING APPARATUS 有权转让
公开(公告)号：EP3461989A1
公开(公告)日：2019-04-03
申请号：EP18203726.7
申请日：2014-04-17
申请人： Rotojar Limited
发明人： MOYES, Peter Barnes
IPC分类号： E21B31/107 , E21B31/113
摘要： A downhole jarring apparatus for use in jarring an object in a bore comprises a first jarring portion including a first impact surface and a second jarring portion including a second impact surface. The apparatus includes a rotatable jarring arrangement comprising a pressurising apparatus operable by a rotational drive movement to cause relative axial movement of the first and second impact surfaces to establish axial impact therebetween.

10. 发明公开

EP2173966A4 METHOD AND APPARATUS FOR DECREASING DRAG FORCE OF TRIGGER MECHANISM 有权转让
标题翻译：方法和设备，为削减牵引跳闸机构的
公开(公告)号：EP2173966A4
公开(公告)日：2015-07-29
申请号：EP08781735
申请日：2008-07-11
申请人： HALLIBURTON ENERGY SERVICES INC
发明人： EVANS ROBERT W
IPC分类号： E21B31/107 , E21B31/113
CPC分类号： E21B31/1135

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