公开(公告)号：US08403060B2

公开(公告)日：2013-03-26

申请号：US13412226

申请日：2012-03-05

Applicant: Michael J. Given ,  Neil J. Scott ,  William D. Munro

Inventor： Michael J. Given ,  Neil J. Scott ,  William D. Munro

IPC: E21B34/02

CPC classification number: E21B33/043 ,  E21B33/076

Abstract: A pressure relief device is used to relieve pressure in a void within a wellhead housing. In one embodiment, the pressure relief device includes a plunger having a stepped plug, wherein the plug can be fully open to allow flow from the void, restricted to allow a predetermined flow to relieve pressure, or closed to prevent flow from the void. In another embodiment, the pressure relief device includes a vacuum puller that creates negative pressure in a vessel. As fluid in the void expands, it is able to enter the space formerly occupied by the plunger. In yet another embodiment, a rupture disc is used to prevent fluid from flowing from the void, through a passage, to the wellbore. If pressure in the void exceeds a predetermined value, the rupture disc yields and allows the trapped fluid to flow to the wellbore.

Abstract translation: 减压装置用于减轻井口壳体内的空隙中的压力。 在一个实施例中，减压装置包括具有阶梯式塞子的柱塞，其中塞子可以完全打开以允许从空隙流出，限制为允许预定流动以释放压力，或者关闭以防止从空隙流出。 在另一个实施例中，压力释放装置包括在容器中产生负压的真空抽吸器。 当空隙中的流体膨胀时，其能够进入以前由柱塞占据的空间。 在另一个实施例中，使用破裂盘来防止流体从空隙通过通道流向井筒。 如果空隙中的压力超过预定值，则破裂盘产生并允许被捕获的流体流向井身。

公开(公告)号：US08695712B2

公开(公告)日：2014-04-15

申请号：US12980994

申请日：2010-12-29

Applicant: Alexander Urquhart ,  William D. Munro

Inventor： Alexander Urquhart ,  William D. Munro

IPC: E21B33/035 ,  E21B33/043 ,  E21B34/04 ,  E21B23/04 ,  E21B33/134

CPC classification number: E21B33/035 ,  E21B34/04

Abstract: A pressure mitigating device is used to reduce pressure in a void within a wellhead housing. In one embodiment, the pressure mitigating device includes two plates that define a void between them. Increased pressure in the wellhead housing causes the plates to elastically displace towards each other. The plates contact each other, limiting the displacement prior to plastic deformation.

Abstract translation: 使用减压装置来减少井口壳体内的空隙中的压力。 在一个实施例中，减压装置包括在它们之间限定空隙的两个板。 井口壳体中增加的压力导致板彼此弹性位移。 板彼此接触，限制了塑性变形前的位移。

公开(公告)号：US20120024536A1

公开(公告)日：2012-02-02

申请号：US12846379

申请日：2010-07-29

Applicant: Michael J. Given ,  Neil J. Scott ,  William D. Munro

Inventor： Michael J. Given ,  Neil J. Scott ,  William D. Munro

IPC: E21B33/035 ,  E21B34/02

CPC classification number: E21B33/043 ,  E21B33/076

Abstract: A pressure relief device is used to relieve pressure in a void within a wellhead housing. In one embodiment, the pressure relief device includes a plunger having a stepped plug, wherein the plug can be fully open to allow flow from the void, restricted to allow a predetermined flow to relieve pressure, or closed to prevent flow from the void. In another embodiment, the pressure relief device includes a vacuum puller that creates negative pressure in a vessel. As fluid in the void expands, it is able to enter the space formerly occupied by the plunger. In yet another embodiment, a rupture disc is used to prevent fluid from flowing from the void, through a passage, to the wellbore. If pressure in the void exceeds a predetermined value, the rupture disc yields and allows the trapped fluid to flow to the wellbore.

Abstract translation: 减压装置用于减轻井口壳体内的空隙中的压力。 在一个实施例中，减压装置包括具有阶梯式塞子的柱塞，其中塞子可以完全打开以允许从空隙流出，限制为允许预定流动以释放压力，或者关闭以防止从空隙流出。 在另一个实施例中，压力释放装置包括在容器中产生负压的真空抽吸器。 当空隙中的流体膨胀时，其能够进入以前由柱塞占据的空间。 在另一个实施例中，使用破裂盘来防止流体从空隙通过通道流向井筒。 如果空隙中的压力超过预定值，则破裂盘产生并允许被捕获的流体流向井身。

公开(公告)号：US08061428B2

公开(公告)日：2011-11-22

申请号：US12425209

申请日：2009-04-16

Applicant: Stephen P. Fenton ,  William D. Munro ,  Calum T. Myles

Inventor： Stephen P. Fenton ,  William D. Munro ,  Calum T. Myles

IPC: E21B43/01

CPC classification number: E21B33/04

Abstract: A subsea wellhead assembly includes a wellhead housing, a production tree, a tubing hanger adapted to land in the wellhead assembly inside the wellhead housing without a need for angular orientation, a bridge member on the tubing hanger in the production tree, a port radially formed through the tubing hanger or the bridge member, a production port radially through the tree head housing, and an annular production flow passage that circumscribes the bridge member lower portion on one end and optionally circumscribes the tubing hanger on its other end. The annular production flow passage is in communication with both the production port and the radial port in the tubing hanger or bridge member so that fluid can be produced from the well via the annular production flow passage without necessity to orientate the tubing hanger.

Abstract translation: 海底井口组件包括井口壳体，生产树，适于落在井口壳体内的井口组件内而不需要角度定向的管道悬挂器，生产树中管道悬挂器上的桥构件，径向形成的端口 通过管道悬挂器或桥梁构件，径向通过树木头壳体的生产端口和环形生产流动通道，该环形生产流动通道在一端限定桥接构件下部并且可选地围绕其另一端的管道悬挂器。 环形生产流动通道与管道悬挂器或桥接构件中的生产口和径向端口连通，使得可以通过环形生产流动通道从井中产生流体，而不需要定位管道悬挂器。

公开(公告)号：US08322443B2

公开(公告)日：2012-12-04

申请号：US12846379

申请日：2010-07-29

Applicant: Michael J. Given ,  Neil J. Scott ,  William D. Munro

Inventor： Michael J. Given ,  Neil J. Scott ,  William D. Munro

IPC: E21B34/02

CPC classification number: E21B33/043 ,  E21B33/076

Abstract: A pressure relief device is used to relieve pressure in a void within a wellhead housing. In one embodiment, the pressure relief device includes a plunger having a stepped plug, wherein the plug can be fully open to allow flow from the void, restricted to allow a predetermined flow to relieve pressure, or closed to prevent flow from the void. In another embodiment, the pressure relief device includes a vacuum puller that creates negative pressure in a vessel. As fluid in the void expands, it is able to enter the space formerly occupied by the plunger. In yet another embodiment, a rupture disc is used to prevent fluid from flowing from the void, through a passage, to the wellbore. If pressure in the void exceeds a predetermined value, the rupture disc yields and allows the trapped fluid to flow to the wellbore.

Abstract translation: 减压装置用于减轻井口壳体内的空隙中的压力。 在一个实施例中，减压装置包括具有阶梯式塞子的柱塞，其中塞子可以完全打开以允许从空隙流出，限制为允许预定流动以释放压力，或者关闭以防止从空隙流出。 在另一个实施例中，压力释放装置包括在容器中产生负压的真空抽吸器。 当空隙中的流体膨胀时，其能够进入以前由柱塞占据的空间。 在另一个实施例中，使用破裂盘来防止流体从空隙通过通道流向井筒。 如果空隙中的压力超过预定值，则破裂盘产生并允许被捕获的流体流向井身。

公开(公告)号：US20120168173A1

公开(公告)日：2012-07-05

申请号：US12980994

申请日：2010-12-29

Applicant: Alexander Urquhart ,  William D. Munro

Inventor： Alexander Urquhart ,  William D. Munro

IPC: E21B33/03

CPC classification number: E21B33/035 ,  E21B34/04

Abstract: A pressure mitigating device is used to reduce pressure in a void within a wellhead housing. In one embodiment, the pressure mitigating device includes two plates that define a void between them. Increased pressure in the wellhead housing causes the plates to elastically displace towards each other. The plates contact each other, limiting the displacement prior to plastic deformation.

Abstract translation: 使用减压装置来减少井口壳体内的空隙中的压力。 在一个实施例中，减压装置包括在它们之间限定空隙的两个板。 井口壳体中增加的压力导致板彼此弹性位移。 板彼此接触，限制了塑性变形前的位移。

公开(公告)号：US20120160512A1

公开(公告)日：2012-06-28

申请号：US13412226

申请日：2012-03-05

Applicant: Michael J. Given ,  Neil J. Scott ,  William D. Munro

Inventor： Michael J. Given ,  Neil J. Scott ,  William D. Munro

IPC: E21B33/035

CPC classification number: E21B33/043 ,  E21B33/076

Abstract: A pressure relief device is used to relieve pressure in a void within a wellhead housing. In one embodiment, the pressure relief device includes a plunger having a stepped plug, wherein the plug can be fully open to allow flow from the void, restricted to allow a predetermined flow to relieve pressure, or closed to prevent flow from the void. In another embodiment, the pressure relief device includes a vacuum puller that creates negative pressure in a vessel. As fluid in the void expands, it is able to enter the space formerly occupied by the plunger. In yet another embodiment, a rupture disc is used to prevent fluid from flowing from the void, through a passage, to the wellbore. If pressure in the void exceeds a predetermined value, the rupture disc yields and allows the trapped fluid to flow to the wellbore.

公开(公告)号：US20090260832A1

公开(公告)日：2009-10-22

申请号：US12425209

申请日：2009-04-16

Applicant: Stephen P. Fenton ,  William D. Munro ,  Calum T. Myles

Inventor： Stephen P. Fenton ,  William D. Munro ,  Calum T. Myles

IPC: E21B33/035 ,  E21B33/043

CPC classification number: E21B33/04

Abstract: A subsea wellhead assembly includes a wellhead housing, a production tree, a tubing hanger adapted to land in the wellhead assembly inside the wellhead housing without a need for angular orientation, a bridge member on the tubing hanger in the production tree, a port radially formed through the tubing hanger or the bridge member, a production port radially through the tree head housing, and an annular production flow passage that circumscribes the bridge member lower portion on one end and optionally circumscribes the tubing hanger on its other end. The annular production flow passage is in communication with both the production port and the radial port in the tubing hanger or bridge member so that fluid can be produced from the well via the annular production flow passage without necessity to orientate the tubing hanger.

Abstract translation: 海底井口组件包括井口壳体，生产树，适于落在井口壳体内的井口组件内而不需要角度定向的管道悬挂器，生产树中管道悬挂器上的桥构件，径向形成的端口 通过管道悬挂器或桥梁构件，径向通过树木头壳体的生产端口和环形生产流动通道，该环形生产流动通道在一端限定桥接构件下部并且可选地围绕其另一端的管道悬挂器。 环形生产流动通道与管道悬挂器或桥接构件中的生产口和径向端口连通，使得可以通过环形生产流动通道从井中产生流体，而不需要定位管道悬挂器。