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公开(公告)号：US4204690A
公开(公告)日：1980-05-27
申请号：US016223
申请日：1979-02-28
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。
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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
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。
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公开(公告)号：US4001764A
公开(公告)日：1977-01-04
申请号：US587784
申请日：1975-06-17
摘要： A method for locating leaks in liquid-transporting submerged pipelines. A sonar device directs acoustic waves along the path of a submerged pipeline and the reflected waves are detected and recorded. The location of escaping liquid is then determined from the recorded reflected acoustic waves, the differences in the reflected acoustic waves resulting from the difference in acoustic impedances between the escaping liquid and seawater. Gas and/or a liquid having a different acoustic impedance from the seawater in or under which the pipeline is located may be introduced into the pipeline to enhance the detection of the liquid being transported through and leaking from the pipeline. Also, sediments stirred up by fluids leaking from a submerged pipeline and, particularly, a buried or partially buried pipeline will cause determinable differences in the recorded reflected acoustic waves. Further, the crater excavated by the escaping fluids will be revealed by the reflected acoustic waves. In addition, a fluid-transporting pipeline may be surveyed along the path of the pipeline with a sonar device and the reflected acoustic waves detected and recorded during normal no-leak conditions. Then the path of the pipeline is again surveyed by a sonar device and the reflected acoustic waves detected and recorded during abnormal or leak conditions. The "no-leak" and "leak" surveys are then compared. Variations in the surveys will indicate escaping fluids and/or a cavity or anomoly in the ocean floor caused by the flow of fluids from the leak and/or the stirred up ocean floor sediments that are dispersed by the flow of fluids from the leak.
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公开(公告)号：US4132270A
公开(公告)日：1979-01-02
申请号：US800832
申请日：1977-05-26
申请人： Warren E. Holland
发明人： Warren E. Holland
CPC分类号： E21B33/1208 , E21B33/12 , E21B41/00
摘要： Well equipment such as packers, check valves, gas lift valves, sliding sleeves, side pocket mandrels, retrievable plugs and the like located anywhere in a well are protected from particles of solid debris by forming a column of a protective liquid having a density of at least about 3.0 grams per milliliter in contact with and extending above the equipment. The protective liquid serves as a barrier to prevent particles of debris having a density less than that of the liquid from settling on or around the equipment and working their way into small clearances where they may cause operational and other problems.
摘要翻译： 通过形成具有密度为的密度的保护液体的柱，将诸如位于井中任何地方的封隔器，止回阀，气举阀，滑动套管，侧袋式心轴，可回收塞子等的良好设备保护成固体碎屑颗粒 每毫升至少约3.0克，与设备接触并延伸。 保护液体用作屏障，以防止密度小于液体的碎屑颗粒沉降在设备周围或周围，并进入小间隙，导致操作和其他问题。
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公开(公告)号：US4042033A
公开(公告)日：1977-08-16
申请号：US728683
申请日：1976-10-01
申请人： Warren E. Holland , Martin E. True
发明人： Warren E. Holland , Martin E. True
CPC分类号： E21B43/122 , E21B34/105 , E21B41/02 , E21B2034/002
摘要： A surface controlled subsurface safety valve for controlling fluid flow through a tubing string in an oil or gas well is combined with an injector valve, which is used for injecting a chemical fluid into the tubing string. The pressure exerted by the chemical fluid is used to operate both the injector valve and the subsurface safety valve. The injector valve is designed to open at an injection pressure equal to or greater than the pressure needed to hold the safety valve in its open position.
摘要翻译： 用于控制通过油井或气井中的管柱的流体流动的表面控制的地下安全阀与用于将化学流体注入管柱中的喷射阀组合。 化学流体施加的压力用于操作喷射阀和地下安全阀。 喷射器阀被设计成在等于或大于将安全阀保持在其打开位置所需的压力的注射压力下打开。
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