公开(公告)号：EP4007839B1

公开(公告)日：2024-08-21

申请号：EP20751272.4

申请日：2020-07-31

IPC分类号： E21B33/12 ,  E21B33/134 ,  E21B36/00

CPC分类号： E21B33/1204 ,  E21B33/134 ,  E21B36/008

公开(公告)号：EP4158149B1

公开(公告)日：2024-08-14

申请号：EP21737822.3

申请日：2021-05-26

IPC分类号： E21B33/134 ,  E21B33/12 ,  E21B29/00

CPC分类号： E21B33/134 ,  E21B33/1204 ,  E21B33/1212 ,  E21B29/00

公开(公告)号：EP3033479B1

公开(公告)日：2018-10-03

申请号：EP14836487.0

申请日：2014-08-12

申请人： Hydra Systems AS

发明人： MYHRE, Morten ,  LARSEN, Arne Gunnar ,  JENSEN, Roy Inge ,  ANDERSEN, Patrick ,  DAHL, Arnt Olav ,  ENGELSGJERD, Erlend ,  IUELL, Markus ,  ØSTVOLD, Arnold

IPC分类号： E21B33/13 ,  E21B7/06 ,  E21B43/116 ,  E21B37/08 ,  E21B33/12

CPC分类号： E21B37/00 ,  E21B7/061 ,  E21B33/12 ,  E21B33/1204 ,  E21B33/13 ,  E21B33/16 ,  E21B37/08 ,  E21B43/11 ,  E21B43/116

摘要： A method is for establishment of a new well path from a well. The method comprises disposing and anchoring a plug base in a casing in the well; lowering a perforation tool into the casing; forming holes in the casing along a longitudinal section; pumping a flushing fluid out through outlets in a flushing tool and into the casing and further out into an annulus; pumping a fluidized plugging material out through the flushing tool and into the casing and further out into the annulus; placing the fluidized plugging material along the longitudinal section so as to form a plug across a cross section of the well; wherein the outlets in the flushing tool are angled non-perpendicularly relative to a longitudinal axis of the flushing tool. The method also comprises removing a portion of the plug until a cross-sectional section of the plug remains in the annulus; disposing and anchoring a direction-guiding element in the casing within the longitudinal section; by means of the element, guiding a drilling tool against the inside of the casing; and forming an exit hole through the casing and the cross-sectional section of the plug, thereby allowing a new well path to be formed from the well.

公开(公告)号：EP3196402A1

公开(公告)日：2017-07-26

申请号：EP16152418.6

申请日：2016-01-22

申请人： Shell Internationale Research Maatschappij B.V.

发明人： SCHOENMAKERS, Jules Marcus Marie

IPC分类号： E21B27/02 ,  E21B33/12 ,  E21B29/02

CPC分类号： E21B27/02 ,  E21B29/02 ,  E21B33/1204

摘要： A to-be-abandoned underground wellbore(4) is plugged along any desired longitudinal interval and radial extent by:
- dropping capsules (2) filled with a grout, pyrotechnic, swelling, bismuth, clay, bentonite, (thermo)hardening, sintering, and/or other plug generating material(3) into the wellbore (4) at selected time intervals;
- inducing the capsules (2) to accumulate above a downhole cement or other barrier (5) in the wellbore (4);
- inducing the accumulated capsules (2) to disintegrate and to release the plug generating material (3) into the wellbore (4); and
- inducing the released plug generating material to generate a fluid tight barrier (7) of a desired length and radial extent within the wellbore (4).

摘要翻译： 将要弃置的地下井筒（4）沿任何所需的纵向间隔和径向范围通过以下方式堵塞： - 填充有灌浆，烟火，膨胀，铋，粘土，膨润土，（热）硬化的滴下胶囊（2），烧结 和/或其它的塞生成材料（3）以选定的时间间隔进入井筒（4）中; - 诱导胶囊（2）积聚在井眼（4）中的井下水泥或其它屏障（5）上方; - 诱导积聚的胶囊（2）分解并将栓塞生成材料（3）释放到井眼（4）中; 和 - 诱导释放的塞子生成材料在井眼（4）内产生具有期望长度和径向范围的流体密封屏障（7）。

公开(公告)号：EP2283204B1

公开(公告)日：2017-05-31

申请号：EP09806976.8

申请日：2009-08-13

申请人： Robertson Intellectual Properties, LLC

发明人： Robertson, Michael C.

IPC分类号： E21B29/02 ,  E21B17/06 ,  E21B23/06 ,  E21B31/00

CPC分类号： E21B33/1204 ,  E21B17/06 ,  E21B23/06 ,  E21B29/02 ,  E21B31/002

公开(公告)号：EP2935766B1

公开(公告)日：2017-04-19

申请号：EP13815109.7

申请日：2013-12-20

申请人： Bisn Tec Ltd

发明人： CARRAGHER, Paul

IPC分类号： E21B36/00 ,  E21B33/134 ,  E21B33/12

CPC分类号： E21B33/13 ,  C06B33/00 ,  C06B47/00 ,  C09K8/426 ,  C22C9/00 ,  C22C12/00 ,  E21B17/1028 ,  E21B27/02 ,  E21B33/12 ,  E21B33/1204 ,  E21B33/134 ,  E21B33/136 ,  E21B36/008 ,  E21B47/00

摘要： A chemical reaction heat source for use in heaters used in down-hole applications is provided. The heat source has a fuel composition that comprises thermite and a damping agent. The use of the thermite mix enables the heaters of the present invention to generate hotter temperatures down wells. This in turn allows the use of Bismuth/Germanium alloys, which have higher melting points, to enable the production of plugs for the abandonment of deeper wells where subterranean temperatures are higher.

摘要翻译： 提供了用于井下应用的加热器中的化学反应热源。 热源具有包含耐热铁和阻尼剂的燃料组合物。 使用白蚁混合物可以使本发明的加热器在井下产生较热的温度。 这又允许使用具有较高熔点的铋/锗合金，以便能够生产用于放置地下温度较高的较深井的塞子。

公开(公告)号：EP3135857A1

公开(公告)日：2017-03-01

申请号：EP16169642.2

申请日：2013-03-08

申请人： Interwell P&A AS

发明人： SKJOLD, Michael

IPC分类号： E21B29/02

CPC分类号： E21B29/02 ,  E21B17/00 ,  E21B33/1204 ,  E21B36/008

摘要： Method and use of abandoning a well 2 or removing a well element which is arranged in a well by melting surrounding materials or by melting the well element, the method comprising the steps of; providing an amount of a heat generating mixture 6, the amount being adapted to perform one of the desired operations, positioning the heat generating mixture 6 at a melting position in the well 2, igniting the heat generating mixture, thereby melting the surrounding materials in the well or melting the well element.

摘要翻译： 废弃井2或通过熔化周围材料或通过熔化井元件而排列在井中的井元件的方法和用途，所述方法包括以下步骤： 提供一定量的发热混合物6，该量适于执行所需操作之一，将发热混合物6定位在井2中的熔化位置，点燃发热混合物，从而熔化发泡混合物6中的周围材料 井或熔化井元素。

公开(公告)号：EP3094814A1

公开(公告)日：2016-11-23

申请号：EP14877624.8

申请日：2014-12-22

申请人： Rise Mining Developments Pty Ltd

发明人： PHILLIPS, Jeffrey Bruce

IPC分类号： E21B33/12 ,  F16L55/11 ,  F42D1/18

CPC分类号： E21B33/12 ,  E21B33/1204 ,  F16L55/1141 ,  F42D1/18

摘要： A plug (10) for blocking off mining exploration drill holes. The plug (10) comprises an elongate body (12) of solid impervious material, and an engineered surface (14) is provided on an external circumference of the elongate body (12). The engineered surface (14) comprises an annular anchoring groove (16) having a ramp (18) extending from a maximum diameter to a minimum diameter of the engineered surface (14) in a braking direction, in which it is intended to prevent movement of the plug (10) in the drill hole. The plug (10) also comprises an O-ring (20) received in the anchoring groove (16) and having a thickness whereby it protrudes slightly above the maximum diameter of the engineered surface (14) and engages with a wall (22) of the drill hole. In use, when the plug (10) is moved in the braking direction in the drill hole, the O-ring (20) rolls up the ramp (18) and wedges between the engineered surface (14) and the wall (22) of the drill hole to provide a braking action for the plug (10) against the wall (22) of the drill hole.

公开(公告)号：EP2877668B1

公开(公告)日：2016-09-28

申请号：EP12738303.2

申请日：2012-07-03

申请人： Halliburton Energy Services, Inc.

发明人： PARLIN, Joseph Dewitt

IPC分类号： E21B7/06 ,  E21B29/06 ,  E21B43/17 ,  E21B43/30

CPC分类号： E21B7/04 ,  E21B7/061 ,  E21B29/06 ,  E21B33/1204 ,  E21B43/17 ,  E21B43/30 ,  E21B43/305

公开(公告)号：EP2877668A1

公开(公告)日：2015-06-03

申请号：EP12738303.2

申请日：2012-07-03

申请人： Halliburton Energy Services, Inc.

发明人： PARLIN, Joseph Dewitt

IPC分类号： E21B7/06 ,  E21B29/06 ,  E21B43/17 ,  E21B43/30

CPC分类号： E21B7/04 ,  E21B7/061 ,  E21B29/06 ,  E21B33/1204 ,  E21B43/17 ,  E21B43/30 ,  E21B43/305

摘要： In some general aspects, methods for intersecting a first, cased well bore include drilling a second well bore that has a distal end proximal to the first, cased well bore to be intersected, disposing a mill guiding device in the second well bore near a casing of the first, cased well bore, the mill guiding device being configured to direct a mill of a milling assembly away from a central axis of the second well bore and towards the first, cased well bore, inserting the milling assembly into the second well bore, operating the mill of the mill assembly and guiding the milling assembly along the mill guide and into the casing of the first well bore, and removing material from the casing of the first well bore until the first, cased well bore and the second well bore are fluidly connected.