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21. 发明授权

US5311938A Retrievable packer for high temperature, high pressure service 失效
标题翻译：可回收包装机，用于高温，高压服务
公开(公告)号：US5311938A
公开(公告)日：1994-05-17
申请号：US884529
申请日：1992-05-15
申请人： James D. Hendrickson , Colby M. Ross , William D. Henderson
发明人： James D. Hendrickson , Colby M. Ross , William D. Henderson
IPC分类号： E21B33/12 , E21B33/128 , E21B33/1295
CPC分类号： E21B33/1295 , E21B33/1216 , E21B33/128
摘要： In a retrievable packer adapted for service under high temperature and high pressure operating conditions, improved sealing is provided by a seal element prop surface which is radially offset with respect to the seal element support surface of the packer body mandrel. At least one seal element is supported on the elevated prop surface and is subjected to a radial squeeze in the set configuration, even though the lowermost outside seal element may be subject to longitudinal separation. The split level seal element support arrangement provides an annular pocket into which the seal elements can be retracted upon release and retrieval of the packer, thereby providing clearance for unobstructed retrieval. Upon release of the packer, a retainer collar is shifted away from a metal backup shoe, thereby providing an annular pocket into which the metal backup shoe is deflected, so that it does not obstruct the drift clearance as the packer is retrieved. The upper outside seal element is reinforced by a garter spring assembly having deformation resistant reinforcing material enclosed within a helical wound coil. Preloading of the seal element assembly is provided by a cover sleeve which releases when a predetermined amount of compression has been achieved. The controlled preloading of the seal elements assists movement of the elements from the lower O.D. of the packer mandrel to the upper O.D. of the prop surface, and the seal elements are forced to expand into the annulus uniformly for preventing the formation of uneven extrusion gaps.
摘要翻译：在适于在高温和高压操作条件下使用的可回收封隔器中，通过相对于封隔器主体心轴的密封元件支撑表面径向偏移的密封元件支撑表面提供改进的密封。至少一个密封元件支撑在升高的支承表面上，并且在设定构型中经受径向挤压，即使最下面的外部密封元件可能被纵向分离。分离水平的密封元件支撑装置提供了一个环形袋，密封元件在释放和取出封隔器时可以缩回到其中，从而提供间隙以便无障碍地回收。在释放封隔器时，保持器套环从金属支撑脚移开，从而提供一个环形袋，金属支撑脚偏转到该环形袋中，使得当包装机被取回时它不会妨碍漂移间隙。上部外部密封元件由具有变形抗力的增强材料的包含弹性卷绕线圈的套筒弹簧组件加强。密封元件组件的预加载是由已经实现预定量的压缩时释放的盖套提供的。密封元件的受控预加载有助于元件从下部O.D.的移动。的封隔器心轴上部O.D. 并且密封元件被均匀地膨胀到环空中以防止形成不均匀的挤压间隙。

22. 发明授权

US5244044A Catcher sub 失效
标题翻译：捕手子
公开(公告)号：US5244044A
公开(公告)日：1993-09-14
申请号：US895000
申请日：1992-06-08
申请人： William D. Henderson
发明人： William D. Henderson
IPC分类号： E21B23/04 , E21B33/1295 , E21B34/06 , E21B34/14
CPC分类号： E21B34/14 , E21B23/04 , E21B33/1295 , E21B34/063
摘要： An improved catcher sub has a longitudinal flow passage and a collet slidably mounted around the flow passage in the sub housing. The collet has a number of fingers and each finger has a resilient seal segment. The collet is held and supported in up fingers contracted position where the resilient seal segments seal on each other forming an annular seal ring smaller than the longitudinal flow passage. When high pressure is applied on a ball sealingly engaging the annular seal ring, the collet is supported in the up contracted position while the pressure moves an annular piston to a position which permits the collet to be moved to a lower expanded position larger than the longitudinal flow passage by a later application of lower pressure on the ball and the ball to be expended downwardly through the collet and sub flow passage.
摘要翻译：改进的捕获器sub具有纵向流动通道和可滑动地安装在副壳体中的流动通道周围的夹头。夹头具有多个手指，每个手指具有弹性密封片段。夹头被保持并支撑在上指形收缩位置处，其中弹性密封段彼此密封，形成小于纵向流动通道的环形密封环。当将高压施加到密封地接合环形密封环的球上时，夹头被支撑在向上收缩位置，同时压力将环形活塞移动到允许夹头移动到比纵向更大的较低扩张位置的位置通过稍后在球和球上施加较低压力以通过夹头和副流动通道向下消耗的流动通道。

23. 发明授权

US5211226A Metal-to-metal seal for oil well tubing string 失效
标题翻译：油井管柱金属对金属密封
公开(公告)号：US5211226A
公开(公告)日：1993-05-18
申请号：US873457
申请日：1992-04-24
申请人： James D. Hendrickson , William D. Henderson , John C. Gano
发明人： James D. Hendrickson , William D. Henderson , John C. Gano
IPC分类号： E21B17/06 , E21B23/02 , E21B33/12 , E21B33/128
CPC分类号： E21B17/06 , E21B23/02 , E21B33/1212 , E21B33/128
摘要： A straight bore metal-to-metal seal for connecting a tubing string to the mandrel of a well packer has a radially deflectable sealing member compressed between the internal bore surface of a tubular seal receptacle and the tubular body portion of a seal mandrel. The seal receptacle has a radially stepped sealing surface which is engaged by the deflectable sealing member in the operative sealing position. The inside bore of the deflectable sealing member is positively sealed against the outside surface of the seal mandrel by a pair of metal V-rings. A positive seal is also produced by engagement of the deflectable sealing member against the radially stepped bore of the seal receptacle. The deflectable sealing member is loaded by radial compression forces produced as a result of interference engagement of the deflectable sealing member against the radially stepped bore.
摘要翻译：用于将油管柱连接到井封隔器的心轴的直孔金属对金属密封件具有在管状密封容器的内孔表面和密封心轴的管状主体部分之间压缩的可径向偏转的密封构件。密封容器具有径向阶梯式的密封表面，其在可操作的密封位置中被可偏转的密封构件接合。可偏转密封构件的内孔通过一对金属V形环被密封抵靠密封心轴的外表面。通过将可偏转的密封构件接合在密封容器的径向阶梯的孔中也产生正密封。可偏转密封构件由于可偏转密封构件与径向阶梯孔的干涉接合而产生的径向压缩力而被加载。

24. 发明授权

US4805696A Hydraulic release tubing seal divider 失效
标题翻译：液压释放管密封分隔器
公开(公告)号：US4805696A
公开(公告)日：1989-02-21
申请号：US151898
申请日：1988-02-03
申请人： William D. Henderson
发明人： William D. Henderson
IPC分类号： E21B17/06 , E21B23/04 , F16L27/12
CPC分类号： E21B17/06 , E21B23/04
摘要： A hydraulic release tubing seal divider for connecting lower and upper tubing strings together in a wellbore, including an inner housing assembly connected with one of the tubing string and middle and outer housing assemblies connected with the other of the tubing strings, including hydraulically operable locking structure carried by the middle and outer housing assemblies for locking the tubing strings together while the strings are run into a well, and for hydraulically releasing the middle and outer housing assemblies from the inner housing assembly to permit relative telescopic movement in the well between the upper and lower tubing strings at the tubing seal divider.
摘要翻译：液压释放管密封分隔件，用于将井筒中的下管和上管连接在一起，包括与油管柱之一连接的内壳体组件，以及与另一个油管柱连接的中间和外壳组件，包括液压可操作的锁定结构由中间和外部壳体组件承载，用于在管柱进入井中时将管柱锁定在一起，并且用于将中间和外部壳体组件从内部壳体组件中液压释放，以允许井中的上部和油管密封分隔器下方的油管柱。

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