公开(公告)号：US5730419A

公开(公告)日：1998-03-24

申请号：US274079

申请日：1994-07-12

Applicant: Michael R. Williams ,  Jeffrey L. Mathews ,  Jimmy D. Andrews

Inventor： Michael R. Williams ,  Jeffrey L. Mathews ,  Jimmy D. Andrews

IPC: F16K41/14 ,  F16K41/16 ,  F16K41/04

CPC classification number: F16K41/14 ,  F16K41/16

Abstract: The present invention is directed to a dual backseat valve assembly comprising a valve body having an interior valve chamber and a generally horizontal flow passage; a valve gate adapted to reciprocate vertically within said valve chamber; a valve stem adapted to be received in threaded engagement with a gate lift nut mounted in said gate such that rotation of said stem causes vertical movement of said gate and a valve bonnet fixed to said valve body receiving said stem therethrough; wherein the valve stem comprises a radially extending portion defining a downward facing surface, a first enlarged diameter portion proximate the radially extending portion and a reduced diameter portion adjacent the first enlarged diameter portion; a first backseat seal comprising a radially energized seal ring fixed relative to said bonnet and having a first sealing portion for sealing against said bonnet and a second sealing portion which is adapted to be spaced apart from said reduced diameter portion when said valve is in normal operation and to engage said first enlarged diameter portion only when said stem is in a backseated position with said valve in the open position; a second backseat seal for providing a seal between said stem and said bonnet when said stem is in a backseated position with said valve in the closed position; and a structure fixed relative to said bonnet defining an upward facing surface adapted to engage said downward facing surface when said valve is in the open position to thereby tighten and lock said stem in the backseated position when said stem is moved against the fixed structure.

Abstract translation: 本发明涉及一种双后座阀组件，其包括具有内阀室和大致水平流动通道的阀体; 阀门，其适于在所述阀室内垂直往复运动; 阀杆，适于被接收成与安装在所述门中的门提升螺母螺纹接合，使得所述杆的旋转导致所述闸门的垂直运动和固定到所述阀体的阀帽，所述阀体容纳所述杆穿过; 其中所述阀杆包括限定面向下的表面的径向延伸部分，靠近所述径向延伸部分的第一扩大直径部分和与所述第一扩大直径部分相邻的减小直径部分; 第一后座密封件包括相对于所述发动机罩固定的径向通电的密封环，并且具有用于密封所述阀盖的第一密封部分和当所述阀处于正常操作时适于与所述减小直径部分间隔开的第二密封部分 并且仅当所述杆位于所述阀处于打开位置的后座位置时啮合所述第一扩大直径部分; 第二后座密封件，用于当所述阀杆处于处于关闭位置的所述阀门处于后座位置时，在所述阀杆和所述阀盖之间提供密封; 以及当所述阀处于打开位置时相对于所述发动机罩固定的结构，所述结构限定向上表面，所述表面适于接合所述朝下的表面，从而当所述杆相对于所述固定结构移动时，将所述杆紧固并锁定在所述后座位置。

公开(公告)号：US09441461B2

公开(公告)日：2016-09-13

申请号：US14423667

申请日：2012-08-24

Applicant: Michael R. Williams ,  Thomas L. Hergarden ,  Howard J. Hartley ,  Andrei Strikovski ,  Eric Randall Smedstad ,  Harold Brian Skeels ,  John D. Dafler, Jr. ,  Jimmy D. Andrews

Inventor： Michael R. Williams ,  Thomas L. Hergarden ,  Howard J. Hartley ,  Andrei Strikovski ,  Eric Randall Smedstad ,  Harold Brian Skeels ,  John D. Dafler, Jr. ,  Jimmy D. Andrews

IPC: E21B43/01 ,  E21B41/00 ,  E21B33/035 ,  E21B41/04 ,  E21B7/124

CPC classification number: E21B43/01 ,  E21B7/124 ,  E21B33/035 ,  E21B41/0007 ,  E21B41/04

Abstract: Generally, the present disclosure is directed to systems that may be used to facilitate the retrieval and/or replacement of production and/or processing equipment that may be used for subsea oil and gas operations. In one illustrative embodiment, a method is disclosed that includes, among other things, removing at least a portion of trapped production fluid (101a, 101b) from subsea equipment (100) while the subsea equipment (100) is connected to a subsea equipment installation (185) in a subsea environment (180), and storing at least the removed portion of the trapped production fluid (101a, 101b) in a subsea containment structure (120, 120a, 120b, 132) that is positioned in the subsea environment (180). Additionally, the disclosed method also includes disconnecting the subsea equipment (100) from the subsea equipment installation (185) and retrieving the subsea equipment (100) from the subsea environment (180).

Abstract translation: 通常，本公开涉及可用于促进可用于海底油气操作的生产和/或加工设备的检索和/或更换的系统。 在一个示例性实施例中，公开了一种方法，其特征在于，其中包括从海底设备（100）移除截留的生产流体（101a，101b）的至少一部分，而海底设备（100）连接到海底设备设备 （180），并且将至少被捕获的生产流体（101a，101b）的去除部分存储在位于海底环境中的海底防护结构（120,120a，120b，132）中 180）。 此外，所公开的方法还包括从海底设备装置（185）断开海底设备（100）和从海底环境（180）检索海底设备（100）。

公开(公告)号：US20150315879A1

公开(公告)日：2015-11-05

申请号：US14423667

申请日：2012-08-24

Applicant: Michael R. WILLIAMS ,  Thomas L. HERGARDEN ,  Howard J. HARTLEY ,  Andrei STRIKOVSKI ,  Eric Randall SMEDSTAD ,  Harold Brian SKEELS ,  John D. DAFLER, JR. ,  Jimmy D. ANDREWS

Inventor： Michael R. WILLIAMS ,  Thomas L. HERGARDEN ,  Howard J. HARTLEY ,  Andrei STRIKOVSKI ,  Eric Randall SMEDSTAD ,  Harold Brian SKEELS ,  John D. DAFLER, JR. ,  Jimmy D. ANDREWS

IPC: E21B41/04 ,  E21B43/01

CPC classification number: E21B43/01 ,  E21B7/124 ,  E21B33/035 ,  E21B41/0007 ,  E21B41/04

Abstract: Generally, the present disclosure is directed to systems that may be used to facilitate the retrieval and/or replacement of production and/or processing equipment that may be used for subsea oil and gas operations. In one illustrative embodiment, a method is disclosed that includes, among other things, removing at least a portion of trapped production fluid (101a, 101b) from subsea equipment (100) while the subsea equipment (100) is connected to a subsea equipment installation (185) in a subsea environment (180), and storing at least the removed portion of the trapped production fluid (101a, 101b) in a subsea containment structure (120, 120a, 120b, 132) that is positioned in the subsea environment (180). Additionally, the disclosed method also includes disconnecting the subsea equipment (100) from the subsea equipment installation (185) and retrieving the subsea equipment (100) from the subsea environment (180).