公开(公告)号：EP2017432B1

公开(公告)日：2018-04-18

申请号：EP08252382.0

申请日：2008-07-11

Applicant: Halliburton Manufacturing & Services Limited

Inventor： Burnett, William Stephen ,  Reid, Michael Adam

IPC: E21B33/12 ,  E21B33/128

CPC classification number: E21B33/1216 ,  E21B33/128

Abstract: A support assembly for a deformable sealing element of a downhole tool such as a packer, bridge plug or straddle. The support assembly has first and second support devices at each end of the sealing element with each device having an elastically deformable support member adapted to be located between the respective end of the sealing element and an actuating member of the downhole tool. Additionally, a guide member with an inclined guide surface is provided such that the support member travels along the inclined surface when a force is exerted by the actuating member to expand the sealing element radially into abutment with a surface downhole. The support member moves radially outwards to support the respective end of the sealing element during deformation.

公开(公告)号：EP3225776A1

公开(公告)日：2017-10-04

申请号：EP17164824.9

申请日：2012-04-16

Applicant: Halliburton Energy Services, Inc.

Inventor： McGlothen, Jody Ray ,  Ezell, Michael D. ,  Falconer, Roderick Brand ,  Scott, James W.

IPC: E21B33/124 ,  E21B33/128 ,  E21B33/1295

Abstract: A packer (200) for establishing sealing engagement with a surface disposed in a wellbore includes a packer mandrel (202) and a seal assembly slidably disposed about the packer mandrel (202). The seal assembly has a running position and a radially expanded sealing position. A piston (206) is slidably disposed about the packer mandrel (202) and operably associated with the seal assembly. A release assembly (220) is disposed about the packer mandrel (202) and is releasably coupled to the piston (206) such that actuation of the release assembly (220) decouples the release assembly (220) from the piston (206) allowing the piston (206) to shift longitudinally relative to the packer mandrel (202) to operate the seal assembly from the running position to the radially expanded sealing position, thereby setting the packer (200).

公开(公告)号：EP3211176A1

公开(公告)日：2017-08-30

申请号：EP17164802.5

申请日：2012-04-16

Applicant: Halliburton Energy Services, Inc.

Inventor： MCGLOTHEN, Jody Ray ,  EZELL, Michael D. ,  FALCONER, Roderick Brand ,  SCOTT, James W.

IPC: E21B33/124 ,  E21B33/128 ,  E21B33/1295

Abstract: A packer (200) for establishing sealing engagement with a surface disposed in a wellbore includes a packer mandrel (202) and a seal assembly slidably disposed about the packer mandrel (202). The seal assembly has a running position and a radially expanded sealing position. A piston (206) is slidably disposed about the packer mandrel (202) and operably associated with the seal assembly. A release assembly (220) is disposed about the packer mandrel (202) and is releasably coupled to the piston (206) such that actuation of the release assembly (220) decouples the release assembly (220) from the piston (206) allowing the piston (206) to shift longitudinally relative to the packer mandrel (202) to operate the seal assembly from the running position to the radially expanded sealing position, thereby setting the packer (200).

Abstract translation: 一种用于与布置在井眼中的表面建立密封接合的封隔器（200）包括封隔器心轴（202）和可滑动地围绕封隔器心轴（202）设置的密封组件。 密封组件具有运行位置和径向膨胀的密封位置。 活塞（206）可滑动地设置在封隔器心轴（202）的周围并可操作地与密封组件相关联。 释放组件（220）围绕封隔器心轴（202）布置并且可释放地联接到活塞（206），使得释放组件（220）的致动使释放组件（220）与活塞（206）分离，从而允许 活塞（206）相对于封隔器心轴（202）纵向地移动，以使密封组件从运行位置运动到径向膨胀的密封位置，从而设置封隔器（200）。

公开(公告)号：EP3209855A1

公开(公告)日：2017-08-30

申请号：EP15787867.9

申请日：2015-10-23

Applicant: Hydrawell Inc.

Inventor： CORONADO, Martin P. ,  GARCIA, Luis A. ,  PLANTE, Mark E. ,  BENNETT, Rodney D.

IPC: E21B33/128 ,  E21B33/129 ,  E21B43/26

CPC classification number: E21B23/01 ,  E21B33/128 ,  E21B33/129 ,  E21B43/26

Abstract: Disclosed embodiments relate to methods and devices for setting a plug seat within a downhole well, for example in fracing operations. In an embodiment, the expandable plug seat may include an expandable slip ring and one or more wedge rings. To set the expandable plug seat in place within the casing of the wellbore, longitudinal force would typically be applied to the one or more wedge rings, thereby deforming the expandable slip ring and driving it radially outward into contact with the casing in the wellbore. In some embodiments, the expandable plug seat may be used with a dissolvable ball, which can be pumped to seat onto the plug seat for sealing of the wellbore. Once the downstream section of the well has been isolated in this manner, hydraulic fracturing operations can commence. Eventually, the ball may dissolve, allowing access to the wellbore without the need to drill the plug.

Abstract translation: 所公开的实施例涉及用于例如在压裂操作中将塞座设置在井下井内的方法和装置。 在一个实施例中，可膨胀插头座可以包括可膨胀滑环和一个或多个楔形环。 为了将可膨胀塞座设置在井筒的壳体内，通常将纵向力施加到一个或多个楔环上，由此使可膨胀滑环变形并使其径向向外驱动并与井眼中的壳体接触。 在一些实施例中，可膨胀塞座可以与可溶解的球一起使用，该可溶解的球可以被泵送以安置到塞座装置上以密封井筒。 一旦井下游部分以这种方式被隔离，就可以开始水力压裂作业。 最终，球可能溶解，允许进入井筒而不需要钻出塞子。

公开(公告)号：EP3094813A4

公开(公告)日：2017-08-16

申请号：EP14888977

申请日：2014-04-09

Applicant: HALLIBURTON ENERGY SERVICES INC

Inventor： DOCKWEILER DAVID ALLEN

IPC: E21B33/12 ,  E21B33/128 ,  E21B33/129

CPC classification number: E21B33/128 ,  E21B23/01 ,  E21B23/06 ,  E21B33/12 ,  E21B33/1208 ,  E21B33/1293

Abstract: Expansion sealing elements used to prevent fluid, flow through an annul us formed by tubing within the well and the wall of the wellbore or casing are provided. The expansion sealing elements are useful on downhole tools including those that need to be lowered through a first casing to be set in a second casing, which, has a larger diameter than the first casing.

Abstract translation: 提供用于防止流体通过由井内的管道和井筒或套管的壁形成的环流的膨胀密封元件。 膨胀密封元件对于井下工具是有用的，包括那些需要通过第一壳体降低以安装在第二壳体内的工具，该第二壳体具有比第一壳体更大的直径。

公开(公告)号：EP2357316A3

公开(公告)日：2017-04-05

申请号：EP11152836.0

申请日：2011-02-01

Applicant: Weatherford Technology Holdings, LLC

Inventor： Derby, Michael

IPC: E21B33/128 ,  E21B33/12

CPC classification number: E21B33/1285 ,  E21B33/1208

Abstract: A downhole tool has a mandrel with packing elements. Collars between the packing elements define ports communicating with gaps between the packing elements and the mandrels. Opposing piston housings on the mandrel can move in opposing directions to compress the packing elements against the collars. Each piston housing defines a space with the mandrel and has a second port communicating with the gap. Pistons disposed in the spaces are temporarily affixed thereto. Hydraulic pressure communicated through the mandrel's bore acts against the pistons. While affixed to the piston housings, the pistons move the piston housings toward the packing elements to compress then. When the packing elements set, continued pressure breaks shear pins affixing the pistons to the piston housings so the pistons move and eventually seal fluid communication between the second ports in the pistons and the gaps.

公开(公告)号：EP2994605A4

公开(公告)日：2017-01-18

申请号：EP14794363

申请日：2014-03-25

Applicant: FREUDENBERG OIL & GAS LLC

Inventor： PORTA SANTIAGO GALVEZ

IPC: E21B33/12 ,  E21B33/128 ,  E21B33/129

CPC classification number: E21B33/1285 ,  E21B33/1208 ,  E21B33/128 ,  E21B33/1293

Abstract: A packing element comprising a tube having a longitudinal length. The tube includes a first end and a second end opposing the first end, an external portion including a plurality of circumferential ribs, and an internal portion opposing the external portion. The internal portion of the tube includes i) a central portion extending along a portion of the longitudinal length of the tube between the first end and second end of the tube, wherein the central portion includes a relief, ii) a first tapered portion radially tapering along the longitudinal length from the central portion towards the first end, and iii) a second tapered portion tapering along the longitudinal length from the central portion towards the second end.

Abstract translation: 包括具有纵向长度的管的包装元件。 管包括与第一端相对的第一端和第二端，包括多个周向肋的外部部分和与外部部分相对的内部部分。 管的内部包括：i）在管的第一端和第二端之间沿着管的纵向长度的一部分延伸的中心部分，其中中心部分包​​括浮雕，ii）径向渐缩的第一锥形部分 沿着从中心部分朝向第一端的纵向长度，以及iii）沿着从中心部分朝向第二端的纵向长度渐缩的第二锥形部分。

公开(公告)号：EP2867447A4

公开(公告)日：2016-08-03

申请号：EP12880470

申请日：2012-07-02

Applicant: HALLIBURTON ENERGY SERVICES INC

Inventor： EZELL MICHAEL DALE ,  MALLORY BEAUFORD SEAN

IPC: E21B33/128 ,  E21B23/06 ,  E21B33/124

CPC classification number: E21B33/1285 ,  E21B23/06 ,  E21B33/124 ,  E21B33/128

Abstract: A packer for use in a wellbore includes a packer mandrel. First and second pistons are slidably disposed about the packer mandrel defining first and second chambers therewith. An activation assembly initially prevents movement of the first piston. A release assembly initially prevents movement of the second piston. First and second seal assemblies are disposed about the packer mandrel such that actuation of the activation assembly allows a force generated by a pressure difference between the wellbore and the first chamber to shift the first piston in a first direction toward the first seal assembly to radially expand the first seal assembly and to actuate the release assembly and, actuation of the release assembly allows a force generated by a pressure difference between the wellbore and the second chamber to shift the second piston in the first direction toward the second seal assembly to radially expand the second seal assembly.

Abstract translation: 用于井眼的封隔器包括封隔器心轴。 第一和第二活塞可滑动地设置在封隔器心轴周围，限定第一和第二腔室。 启动组件最初防止第一活塞的移动。 释放组件最初防止第二活塞的运动。 第一和第二密封组件设置在封隔器心轴周围，使得致动组件的致动允许由井眼与第一腔室之间的压力差产生的力沿第一方向朝向第一密封组件移动以径向扩张 所述第一密封组件并且致动所述释放组件，并且所述释放组件的致动允许由所述井筒和所述第二室之间的压力差产生的力沿所述第一方向将所述第二活塞向所述第二密封组件移动， 第二密封组件。

公开(公告)号：EP2719856A3

公开(公告)日：2016-07-27

申请号：EP13188451.2

申请日：2013-10-14

Applicant: Weatherford Technology Holdings, LLC

Inventor： Smith, Roddie

IPC: E21B34/10 ,  E21B33/128

CPC classification number: E21B33/128 ,  E21B33/1285 ,  E21B34/10 ,  E21B34/105

Abstract: A seal assembly for use in a tubular includes a mandrel (124), upper and lower compressible seal members (111, 113) disposed around the mandrel, first and second upper piston assemblies (102, 108) in contact with a first end of the seal member, and first and second lower piston assemblies (104, 106) in contact with a second end of the seal member. The piston assemblies include a piston head (107A, 109A), and a piston extension sealing member (107B, 109B) integrally formed with the piston head, and extending at least partially between the mandrel and the compressible seal member. The compressible seal members form a seal with the tubular when at least one of the piston assemblies is urged toward the compressible seal member.

公开(公告)号：EP2882925A4

公开(公告)日：2016-06-15

申请号：EP13827940

申请日：2013-08-06

Applicant: ENVENTURE GLOBAL TECHNOLOGY

Inventor： NOEL GREGORY MARSHALL ,  BUTTERFIELD CHARLES ANTHONY JR

IPC: E21B19/24 ,  E21B23/06 ,  E21B33/128

CPC classification number: E21B43/105