公开(公告)号：US4360064A

公开(公告)日：1982-11-23

申请号：US206220

申请日：1980-11-12

申请人： John A. O'Connor, III ,  Warren E. Holland ,  James D. Burley ,  Ronald D. Rogers ,  Fred E. Watkins ,  Ben D. Terral

发明人： John A. O'Connor, III ,  Warren E. Holland ,  James D. Burley ,  Ronald D. Rogers ,  Fred E. Watkins ,  Ben D. Terral

IPC分类号： E21B34/06 ,  E21B34/10 ,  E21B43/12 ,  E21B34/08

CPC分类号： E21B34/10 ,  E21B21/103

摘要： A circulating (kill) valve for hot, high pressure wells includes a valve assembly to be positioned in an open-ended tubular-shaped side-pocket housing of a mandrel connected into a well tubing string. The valve assembly includes an open-ended cylindrical valve body provided with an interior sealing seat and spaced-apart side openings. A valve element is arranged within the valve body and is urged by unbalanced pressures to the open or closed position depending on the direction of the pressure imbalance. In the closed position a sealing surface on the exterior of the valve element engages and seals with the lower interior sealing seat of the valve body. A ported access to the inner well string pressure permits that pressure to urge the valve element to the closed position. Such pressure may be overcome by pressure imbalance when fluid pressure exterior of the tubing string forces the valve element upwardly from its seat. A wiper seal is arranged on the interior of the valve body and engages the outer surface of the valve element. A ported access to inner tube pressure urges the valve element to the closed position which may be overcome by pressure imbalance when exterior pressure forces the valve element from its seat.

摘要翻译： 用于热的高压井的循环（杀死）阀包括阀组件，其被定位在连接到井管柱中的心轴的开口管状侧袋壳体中。 阀组件包括一个开口的圆柱形阀体，它设有内部密封座和间隔开的侧面开口。 阀元件设置在阀体内，并根据压力不平衡的方向被不平衡的压力推到打开或关闭位置。 在关闭位置，阀元件的外部上的密封表面与阀体的下部内部密封座接合并密封。 通过进入内部井筒压力的方式允许压力将阀元件推到关闭位置。 当管柱外部的流体压力迫使阀元件从其座位向上时，压力不平衡可以克服这种压力。 在阀体的内部布置有擦拭器密封件，并与阀元件的外表面接合。 对内管压力的移动通道促使阀元件处于关闭位置，当外部压力迫使阀元件从其座位时，该位置可能被压力不平衡所克服。

公开(公告)号：US916781A

公开(公告)日：1909-03-30

申请号：US1908455812

申请日：1908-10-02

申请人： JAMES D BURLEY ,  POINDEXTER GEORGE D

发明人： POINDEXTER GEORGE D

CPC分类号： B25B13/22

公开(公告)号：US4204690A

公开(公告)日：1980-05-27

申请号：US016223

申请日：1979-02-28

申请人： Warren E. Holland ,  James D. Burley ,  Henry P. Arendt

发明人： Warren E. Holland ,  James D. Burley ,  Henry P. Arendt

IPC分类号： E21B33/12 ,  E21B33/128 ,  F16J15/16 ,  F16J15/40 ,  F16J15/24

CPC分类号： E21B33/128 ,  E21B33/1208 ,  F16J15/166 ,  Y10S277/909 ,  Y10S277/91

摘要： A sealing ring assembly is disclosed for use in sealing the annular gap between two concentric cylindrical members, one of the members having an annular groove and the other member having a surface opposed to the groove. Deformable seal material and a radially expansible-contractible non-deformable split retaining ring are located in the groove, the seal material engaging one surface of the retaining ring and the retaining ring being positioned on one of the sidewalls of the groove. The seal material and the retaining ring extend radially to the surface of the other cylindrical member, the retaining ring being sized to elastically compress against that surface. The surface of the retaining ring facing the seal material is beveled or chamfered along a portion or all of its width, the beveled surface extending inwardly to the inner edge of the retaining ring. Fluid pressure applied to the seal material deforms the seal material and causes the seal material to urge the outer edge of the retaining ring against the surface of the other cylindrical member. The seal material is deformed to press against the surface of the other cylindrical member to provide a primary seal. The inner edge of the retaining ring is, preferably, spaced from the inner wall of the groove and under pressure the seal material deforms and flows into the gap formed between the inner edge of the retaining ring and the inner wall of the groove to prevent leakage of fluid around the retaining ring.

摘要翻译： 公开了一种用于密封两个同心圆柱形构件之间的环形间隙的密封环组件，其中一个构件具有环形凹槽，另一个构件具有与凹槽相对的表面。 可变形的密封材料和径向可膨胀的不可变形的分裂保持环位于凹槽中，密封材料接合保持环的一个表面并且保持环位于凹槽的一个侧壁上。 密封材料和保持环径向延伸到另一个圆柱形构件的表面，保持环的尺寸被设计成相对于该表面弹性地压缩。 面向密封材料的保持环的表面沿其宽度的一部分或全部被倒角或倒角，该斜面向内延伸到保持环的内边缘。 施加到密封材料的流体压力使密封材料变形并使密封材料将保持环的外边缘压靠在另一圆柱形构件的表面上。 密封材料变形以压靠另一个圆柱形构件的表面以提供初级密封。 保持环的内边缘优选地与凹槽的内壁间隔开，并且在压力下，密封材料变形并流入形成在保持环的内边缘和凹槽的内壁之间的间隙中以防止泄漏 的保持环周围的流体。