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公开(公告)号：US06851477B2
公开(公告)日：2005-02-08
申请号：US10292898
申请日：2002-11-12
CPC分类号： E21B34/10 , E21B2034/005
摘要： A subsurface safety valve for controlling fluid flow in a well bore. In one embodiment, the subsurface safety valve includes a tubular member having a longitudinal bore extending therethrough, a curved flapper removably connected to the tubular member. The curved flapper is configured to pivot against the tubular member between an open position and a closed position. The subsurface safety valve further includes a hard seat positioned inside the tubular member, in which the hard seat defines a seating surface configured to receive a sealing surface defined on a bottom periphery portion of the curved flapper to form a sealing interface having a slope that varies along the sealing interface.
摘要翻译： 用于控制井眼中的流体流动的地下安全阀。 在一个实施例中，地下安全阀包括具有延伸穿过其中的纵向孔的管状构件，可拆卸地连接到管状构件的弯曲挡板。 弯曲的挡板构造成在打开位置和关闭位置之间枢转抵靠管状构件。 所述地下安全阀还包括位于所述管状构件内的硬质座，所述硬座位于所述硬座中，所述硬座位于所述硬座中，所述硬座位于所述座部表面上，所述座部构造成容纳限定在所述弯曲挡板的底部周边部分上的密封表面，以形成密封界面， 沿密封界面。
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公开(公告)号：US08701781B2
公开(公告)日：2014-04-22
申请号：US13289185
申请日：2011-11-04
申请人： Robert C. Henschel , Robert Jancha
发明人： Robert C. Henschel , Robert Jancha
IPC分类号： E21B34/08
CPC分类号： E21B34/101 , E21B2034/005
摘要： A flapper for use as a component of a safety valve designed for deployment in a well bore having well bore fluids. The flapper includes a flapper body forming a flapper valve bore therethrough. The flapper body forms a groove proximate to the flapper bore. The flapper also includes a plunger member sized and configured to be received in the flapper valve bore. The plunger member includes a first end portion and a second end portion. Additionally, the flapper includes a leaf spring including a primary end portion and a secondary end portion, the primary end portion of the leaf spring detachably attached to the second end portion of the plunger member and unattached to the flapper body and the secondary end portion of the leaf spring being sized and configured to be received and retained in the groove and to bias the plunger member into the flapper valve bore.
摘要翻译： 用作安全阀组件的挡板，设计用于部署在具有井眼流体的井眼中。 挡板包括形成通过其的挡板阀孔的挡板体。 挡板体形成靠近挡板孔的凹槽。 挡板还包括柱塞构件，其尺寸和构造被容纳在挡板阀孔中。 柱塞构件包括第一端部和第二端部。 此外，挡板包括板簧，其包括主端部和副端部，片簧的主端部可拆卸地附接到柱塞构件的第二端部并且未连接到挡板体，并且次级端部 板簧的尺寸和构造被容纳并保持在槽中并将柱塞构件偏压到挡板阀孔中。
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公开(公告)号：US20120111575A1
公开(公告)日：2012-05-10
申请号：US13289185
申请日：2011-11-04
申请人： Robert C. Henschel , Robert Jancha
发明人： Robert C. Henschel , Robert Jancha
CPC分类号： E21B34/101 , E21B2034/005
摘要： A flapper for use as a component of a safety valve designed for deployment in a well bore having well bore fluids. The flapper includes a flapper body forming a flapper valve bore therethrough. The flapper body forms a groove proximate to the flapper bore. The flapper also includes a plunger member sized and configured to be received in the flapper valve bore. The plunger member includes a first end portion and a second end portion. Additionally, the flapper includes a leaf spring including a primary end portion and a secondary end portion, the primary end portion of the leaf spring detachably attached to the second end portion of the plunger member and unattached to the flapper body and the secondary end portion of the leaf spring being sized and configured to be received and retained in the groove and to bias the plunger member into the flapper valve bore.
摘要翻译： 用作安全阀组件的挡板，设计用于部署在具有井眼流体的井眼中。 挡板包括形成通过其的挡板阀孔的挡板体。 挡板体形成靠近挡板孔的凹槽。 挡板还包括柱塞构件，其尺寸和构造被容纳在挡板阀孔中。 柱塞构件包括第一端部和第二端部。 此外，挡板包括板簧，其包括主端部和副端部，片簧的主端部可拆卸地附接到柱塞构件的第二端部并且未连接到挡板体，并且次级端部 板簧的尺寸和构造被容纳并保持在槽中并将柱塞构件偏压到挡板阀孔中。
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公开(公告)号：US20110114335A1
公开(公告)日：2011-05-19
申请号：US13009171
申请日：2011-01-19
申请人： Robert C. Henschel , Robert Jancha
发明人： Robert C. Henschel , Robert Jancha
CPC分类号： E21B34/101 , E21B2034/005
摘要： A flapper for use as a component of a safety valve designed for deployment in a well bore having well bore fluids. The flapper includes a flapper body forming a flapper valve bore therethrough. The flapper body further forms a groove proximate to the flapper bore. The flapper also includes a plunger member sized and configured to be received in the flapper valve bore. The plunger member includes a first end portion and a second end portion. Additionally, the flapper includes a leaf spring including a primary end portion and a secondary end portion, the primary end portion of the leaf spring detachably attached to the second end portion of the plunger member and unattached to the flapper body and the secondary end portion of the leaf spring being sized and configured to be received and retained in the groove and to bias the plunger member into the flapper valve bore. Forces exerted on the flapper body when rotating between an open state and a closed state during use of the safety valve urge at least a portion of the leaf spring into the groove.
摘要翻译： 用作安全阀组件的挡板，设计用于部署在具有井眼流体的井眼中。 挡板包括形成通过其的挡板阀孔的挡板体。 挡板体进一步形成靠近挡板孔的凹槽。 挡板还包括柱塞构件，其尺寸和构造被容纳在挡板阀孔中。 柱塞构件包括第一端部和第二端部。 此外，挡板包括板簧，其包括主端部和副端部，片簧的主端部可拆卸地附接到柱塞构件的第二端部并且未连接到挡板体，并且次级端部 板簧的尺寸和构造被容纳并保持在槽中并将柱塞构件偏压到挡板阀孔中。 在使用安全阀期间在打开状态和关闭状态之间旋转时施加在挡板体上的力促使板簧的至少一部分进入凹槽。
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5.发明授权Method and apparatus for retaining a soft seal in an integrated flapper mount, hard seat, spring housing surface controlled subsurface safety valve 有权用于在一体式挡板安装座，硬座，弹簧壳体表面控制的地下安全阀中保持软密封的方法和装置公开(公告)号：US07841416B2
公开(公告)日：2010-11-30
申请号：US11894356
申请日：2007-08-21
IPC分类号： E21B34/14
CPC分类号： E21B34/06 , E21B34/10 , E21B2034/005
摘要： Presented is a subsurface safety valve in which the flapper mount, hard seat and spring housing have been integrated into a single assembly. To accommodate a “soft seat insert,” a special retainer soft seat ring and soft seat seal are provided. The soft seat seal fits over a conical protruding surface (hard seat) that surrounds the main bore of the safety valve on the bottom side of the spring housing. The retainer ring fits over the soft seat seal and holds it in place against the conical surface. Notches along the perimeter of an upper flanged end of the soft seat seal prevent gases, such as nitrogen, from becoming trapped behind the seal and potentially damaging it during a rapid decompression event. A gap between the upper flanged end of the soft seat seal and the lower spring housing allow the seal to move up and down the conical protruding surface as the flapper opens and closes, reducing compression of the seal and the risk of a compression set due to repeated opening and closing of the flapper.
摘要翻译： 提出了一种地下安全阀，其中挡板安装座，硬座和弹簧壳体已经集成到单个组件中。 为了容纳“软座插件”，提供了特殊的保持器软座圈和软座密封。 软座密封件安装在围绕弹簧壳体底部的安全阀的主孔的锥形突出表面（硬座）上。 保持环安装在软座密封件上，并将其固定在锥形表面上。 沿着软座密封件的上法兰端的周边的凹口防止气体（例如氮气）被困在密封件后面并在快速减压事件期间潜在地损坏密封件。 软座密封件的上法兰端和下弹簧壳体之间的间隙允许密封件在挡板打开和关闭时沿锥形突出表面上下移动，减少密封件的压缩和由于 反复打开和关闭挡板。
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6.发明申请Method and apparatus for retaining a soft seal in an integrated flapper mount, hard seat, spring housing surface controlled subsurface safety valve 有权用于在一体式挡板安装座，硬座，弹簧壳体表面控制的地下安全阀中保持软密封的方法和装置公开(公告)号：US20080047713A1
公开(公告)日：2008-02-28
申请号：US11894356
申请日：2007-08-21
CPC分类号： E21B34/06 , E21B34/10 , E21B2034/005
摘要： Presented is a subsurface safety valve in which the flapper mount, hard seat and spring housing have been integrated into a single assembly. To accommodate a “soft seat insert,” a special retainer soft seat ring and soft seat seal are provided. The soft seat seal fits over a conical protruding surface (hard seat) that surrounds the main bore of the safety valve on the bottom side of the spring housing. The retainer ring fits over the soft seat seal and holds it in place against the conical surface. Notches along the perimeter of an upper flanged end of the soft seat seal prevent gases, such as nitrogen, from becoming trapped behind the seal and potentially damaging it during a rapid decompression event. A gap between the upper flanged end of the soft seat seal and the lower spring housing allow the seal to move up and down the conical protruding surface as the flapper opens and closes, reducing compression of the seal and the risk of a compression set due to repeated opening and closing of the flapper.
摘要翻译： 提出了一种地下安全阀，其中挡板安装座，硬座和弹簧壳体已经集成到单个组件中。 为了容纳“软座插件”，提供了特殊的保持器软座圈和软座密封。 软座密封件安装在围绕弹簧壳体底部的安全阀的主孔的锥形突出表面（硬座）上。 保持环安装在软座密封件上，并将其固定在锥形表面上。 沿着软座密封件的上法兰端的周边的凹口防止气体（例如氮气）被困在密封件后面并在快速减压事件期间潜在地损坏密封件。 软座密封件的上法兰端和下弹簧壳体之间的间隙允许密封件在挡板打开和关闭时沿锥形突出表面上下移动，减少密封件的压缩和由于 反复打开和关闭挡板。
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公开(公告)号：US20100175887A1
公开(公告)日：2010-07-15
申请号：US12351609
申请日：2009-01-09
申请人： Robert C. Henschel , Robert Jancha
发明人： Robert C. Henschel , Robert Jancha
CPC分类号： E21B34/101 , E21B2034/005
摘要： A flapper for use as a component of a safety valve designed for deployment in a well bore having well bore fluids. The flapper includes a flapper body forming a flapper valve bore therethrough. The flapper body further forms a groove proximate to the flapper bore. The flapper also includes a plunger member sized and configured to be received in the flapper valve bore. The plunger member includes a first end portion and a second end portion. Additionally, the flapper includes a leaf spring including a primary end portion and a secondary end portion, the primary end portion of the leaf spring detachably attached to the second end portion of the plunger member and unattached to the flapper body and the secondary end portion of the leaf spring being sized and configured to be received and retained in the groove and to bias the plunger member into the flapper valve bore. Forces exerted on the flapper body when rotating between an open state and a closed state during use of the safety valve urge at least a portion of the leaf spring into the groove.
摘要翻译： 用作安全阀组件的挡板，设计用于部署在具有井眼流体的井眼中。 挡板包括形成通过其的挡板阀孔的挡板体。 挡板体进一步形成靠近挡板孔的凹槽。 挡板还包括柱塞构件，其尺寸和构造被容纳在挡板阀孔中。 柱塞构件包括第一端部和第二端部。 此外，挡板包括板簧，其包括主端部和副端部，片簧的主端部可拆卸地附接到柱塞构件的第二端部并且未连接到挡板体，并且次级端部 板簧的尺寸和构造被容纳并保持在槽中并将柱塞构件偏压到挡板阀孔中。 在使用安全阀期间在打开状态和关闭状态之间旋转时施加在挡板体上的力促使板簧的至少一部分进入凹槽。
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