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公开(公告)号：US10184302B2
公开(公告)日：2019-01-22
申请号：US14821900
申请日：2015-08-10
摘要： Apparatus and method for sealingly connecting tubular members in a wellbore. In a connector apparatus where a portion of a tubular member is radially expanded into sealing contact within a second tubular member, and the second tubular member has circumferential recesses on an inner surface, an annular resilient band member is arranged in the recesses. The annular resilient band member is acted on by the portion of the tubular member during expansion and maintains sealing contact to the portion after expansion.
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公开(公告)号：US09752419B2
公开(公告)日：2017-09-05
申请号：US14866988
申请日：2015-09-27
发明人： David Glen Martin , Neil Thomson
IPC分类号： E21B43/10
CPC分类号： E21B43/105 , E21B43/103 , E21B43/108
摘要： A hydraulic fluid delivery tool for morphing a tubular downhole and a method of morphing a tubular downhole. The tool has spaced apart annular elastomer seal assemblies which operate by application of a piston against each elastomer to create a seal against the tubular. A first hydraulic fluid delivery line delivers fluid at a first pressure to operate the pistons. A second hydraulic fluid delivery line delivers fluid at a second pressure, lower than the first, to a location between the seals to morph the tubular and act on a second face of each piston to assist in maintaining the seal.
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公开(公告)号：US09739121B2
公开(公告)日：2017-08-22
申请号：US14867066
申请日：2015-09-28
发明人： Neil Thomson
IPC分类号： E21B43/10 , E21B23/04 , F15B3/00 , E21B33/124
CPC分类号： E21B43/105 , E21B23/04 , E21B33/124 , E21B43/108 , F15B3/00
摘要： A pressure intensifier for morphing tubulars downhole. An elongate mandrel defines an inner bore, being co-axially located within an elongate hollow outer cylindrical body to form a co-axial annular bore therebetween. Pistons are mounted upon the mandrel with each piston having an annular fluid facing face extending across the annular bore, with fluid communication between the inner bore and the annular bore to act upon each face. Stops are located on an inner surface of the outer cylindrical body to limit travel of each piston. A morph fluid is located in the annular bore between an opposing face of a first piston and a first stop, with the first stop having delivery ports to deliver the morph fluid at a greater pressure than the pressure of fluid delivered through the inner bore.
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公开(公告)号：US20220259934A1
公开(公告)日：2022-08-18
申请号：US17618024
申请日：2020-06-09
发明人： Peter Wood , Neil Thomson , Davidson Harman
IPC分类号： E21B23/01 , E21B33/128 , E21B33/129 , E21B33/12
摘要： A technique facilitates anchoring between tubular structures in various well applications. The technique may utilize a load anchor having a radially expandable mandrel with an interior passage. Circumferential biasing members are mounted around the mandrel and each circumferential biasing member has a biasing surface. Additionally, a gripper system is positioned axially between the circumferential biasing members. The gripper system is configured such that engagement with the biasing surface of either circumferential biasing member causes radially outward biasing of the gripper system upon movement of the mandrel in either axial direction. A sealing element also may be disposed about the mandrel. The configuration of the gripper system and the circumferential biasing members protects the sealing element against undue axial movement once the load anchor is radially expanded into engagement with a surrounding surface.
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