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1. 发明授权

US4030546A Swivel assembly 失效
标题翻译：旋转总成
公开(公告)号：US4030546A
公开(公告)日：1977-06-21
申请号：US599628
申请日：1975-07-28
申请人： Jerry L. Rogers , Chudleigh B. Cochran
发明人： Jerry L. Rogers , Chudleigh B. Cochran
IPC分类号： E21B33/04 , E21B43/10
CPC分类号： E21B33/0415 , E21B43/10
摘要： Disclosed is a swivel assembly with multiple fluid bearings. The embodiment shown is a rotatable liner swivel assembly to be used, in conjunction with a liner hanger, cam dog assembly, and setting tool, for placing and cementing a liner in a well. Fluid-filled annular bearing chambers in the swivel assembly support the load of the liner pipe string, and permit the rotation of the liner pipe string with respect to the liner hanger during the cementing process. The bearing chambers are interconnected to equalize the fluid pressure and distribute the load uniformly over the bearing chambers.
摘要翻译：公开了具有多个流体轴承的旋转组件。所示的实施例是可旋转的衬套旋转组件，其结合用于将衬垫放置和固定在井中的衬管悬挂器，凸轮杆组件和固定工具来使用。旋转组件中的流体填充的环形轴承室支撑衬套管柱的负载，并且允许衬套管柱相对于衬套悬挂器在固井过程期间的旋转。轴承室相互连接以均衡流体压力并将负载均匀地分布在轴承室上。

2. 发明授权

US5058671A Pipe insert assembly 失效
标题翻译：管插件总成
公开(公告)号：US5058671A
公开(公告)日：1991-10-22
申请号：US566113
申请日：1990-08-13
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B21/10 , E21B23/01 , E21B23/06 , E21B33/129
CPC分类号： E21B21/10 , E21B23/01 , E21B23/06 , E21B33/129 , E21B33/1294
摘要： An assembly for installation within the end of a joint of casing or liner for use in a downhole environment where the casing or liner is disposed in the borehole which traverses earth formations. The assembly includes an annular split ring expander and an annular split ring slip element and a self-energizing packing element which has an interference fit with respect to the bore of a string of pipe. A mechanically operated setting tool has a set of nut members on a threaded mandrel which are selectively operated for setting the slip element of the assembly into a wedging engagement with the expander in the wall of a well pipe and for releasing the setting tool from the body of the assembly to leave the assembly installed within the end of a joint of casing or liner.
摘要翻译：用于安装在壳体或衬套的接头的端部内的组件，用于在井下环境中，其中壳体或衬套设置在穿过地层的钻孔中。组件包括环形开口环膨胀器和环形开口环滑动元件以及相对于一排管的孔的过盈配合的自增力填料元件。机械操作的固定工具在螺纹心轴上具有一组螺母构件，其被选择性地操作用于将组件的滑动元件设置成与井管壁中的膨胀器楔入接合，并且用于将定位工具从主体释放的组件将组件安装在套管或衬套的接头的端部内。

3. 发明授权

US4071084A Well packer 失效
标题翻译：好包装
公开(公告)号：US4071084A
公开(公告)日：1978-01-31
申请号：US750801
申请日：1976-12-15
申请人： Joe R. Brown , Chudleigh B. Cochran
发明人： Joe R. Brown , Chudleigh B. Cochran
IPC分类号： E21B23/06 , E21B33/129 , E21B23/00 , E21B33/12
CPC分类号： E21B33/1292 , E21B23/06 , E21B33/1294
摘要： Disclosed is a retrievable, weight set well packer which may be tightened in set configuration by rotation of the tubing string, and which may be released from set configuration by longitudinal movement of the tubing string. Locking means maintain the packer set when the tubing string is raised slightly to open a bypass between the tubing string and the set packer. Continued raising of the tubing string releases the locking means to permit the packer to be retrieved. Dual opposed spreader cones keep the packer set against well pressure differentials acting from either above or below the packer. Pressure responsive means are also employed to increase the forces anchoring the tubing string against movement to open the bypass as differential well pressures tend to so move the tubing string.
摘要翻译：公开了一种可回收的，重量设定的油井封隔器，其可以通过油管柱的旋转而以固定构型拧紧，并且其可以通过油管柱的纵向移动而从设定构型释放。当油管柱稍微升高以在油管柱和设置的封隔器之间打开旁路时，锁定意味着维持封隔器组。油管柱的继续升高释放锁定装置以允许打包机被取出。双重对置吊具锥保持封隔器抵抗来自封隔器上方或下方的较好的压力差。还采用压力响应装置来增加锚定油管柱的力，防止运动以打开旁路，因为不同的井压将导致油管柱的移动。

4. 发明授权

US4018274A Well packer 失效
标题翻译：好包装
公开(公告)号：US4018274A
公开(公告)日：1977-04-19
申请号：US612226
申请日：1975-09-10
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B23/06 , E21B33/129 , E21B33/12
CPC分类号： E21B23/06 , E21B33/1292 , E21B33/1294
摘要： Disclosed is a retrievable, weight set well packer which is set and released by longitudinal movement of the tubing string. Locking means are provided for keeping the packer set when the tubing is raised slightly to open a bypass between the tubing and set packer. Continued raising of the tubing releases the lock means to permit the packer to be retrieved. Dual opposed spreader cones keep the packer set against pressure induced forces in either direction. Differential sealing areas are also employed to prevent such forces from opening the bypass.
摘要翻译：公开了一种可回收的，重量设定的油井封隔器，其通过油管柱的纵向运动而设定和释放。提供了锁定装置，用于当管道稍微升高以在管道和设置封隔器之间打开旁路时保持封隔器组。油管的继续升高释放了锁定装置，以允许打包机被取出。双向对置吊具锥保持封隔器在任一方向上抵抗压力引起的力。还使用差分密封区域来防止这种力打开旁路。

5. 发明授权

US4131160A Well tool with pressure responsive tightening means 失效
标题翻译：具有压力响应紧固手段的井具
公开(公告)号：US4131160A
公开(公告)日：1978-12-26
申请号：US818583
申请日：1977-07-25
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B23/06 , E21B33/1295 , E21B33/128 , E21B33/129
CPC分类号： E21B33/12955 , E21B23/06
摘要： A well tool for use in a tubular well conduit comprising a tool body including at least one radially extendable element for engaging the well conduit, and first and second tool body portions. The tool body portions are operatively associated with the radially extendable element and relatively movable longitudinally toward each other to extend the radially extendable element. Such movement is effected by longitudinal movement of a mandrel assembly which is engageable with the second tool body portion whereby they together form an actuator. The tool further comprises lock means cooperative between the actuator and the first tool body portion to limit movement of the tool body portions away from each other thereby locking the radially extendable element in its extended position. Tightening means associated with the lock means tightens the lock means responsive to fluid pressure acting in a direction opposite the direction of movement of the actuator during setting. The same or similar pressure responsive means may also serve to resist movement of the first tool body portion during setting.
摘要翻译：一种用于管状井管道的良好工具，其包括工具主体，该工具主体包括用于接合井管道的至少一个可径向延伸的元件以及第一和第二工具主体部分。工具主体部分可操作地与可径向延伸的元件相关联并且可相对于彼此纵向相对移动以延伸径向延伸元件。这种移动通过心轴组件的纵向运动来实现，心轴组件可与第二工具主体部分接合，由此它们一起形成致动器。该工具还包括在致动器和第一工具主体部分之间协作的锁定装置，以限制工具主体部分彼此远离的运动，从而将可径向延伸的元件锁定在其伸出位置。与锁定装置相关联的紧固装置响应于在设定期间以与致动器的运动方向相反的方向作用的流体压力来收紧锁定装置。相同或相似的压力响应装置还可以用于在设定期间抵抗第一工具主体部分的移动。

6. 发明授权

US3973587A Check valve assembly 失效
标题翻译：止回阀总成
公开(公告)号：US3973587A
公开(公告)日：1976-08-10
申请号：US571609
申请日：1975-04-25
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B21/10 , E21B34/08 , E21B43/00
CPC分类号： E21B21/10 , E21B34/08 , Y10T137/7783 , Y10T137/7859
摘要： A check valve assembly for use in a flow conductor. A tubular valve body with a central flow passage is mounted in the assembly. A spring urges the body toward closed position in which a rigid sleeve encircles and covers outlet ports in the downstream end of the body. A resilient skirt of rubber extending from the end of the sleeve engages the outer surface of the body to form a seal which prevents reverse fluid flow through the valve. The rigid sleeve isolates the ports from high reverse pressure differentials. Forward flow, or a sufficiently great forward pressure differential, overcomes the spring bias and pushes the downstream end of the tubular body through the bottom of the sleeve and skirt to a position in which the outlet ports are uncovered for normal flowing operation. The spring returns the valve body to closed position when the flow reverses or the forward pressure differential falls below a prescribed value.
摘要翻译：用于流动导体的止回阀组件。具有中央流动通道的管状阀体安装在组件中。弹簧将身体推向关闭位置，刚性套筒环绕并覆盖身体下游端的出口。从套筒的端部延伸的橡胶弹性裙部接合主体的外表面以形成防止反向流体流过阀的密封件。刚性套管将端口与高反向压差隔离。正向流动或足够大的向前压力差克服了弹簧偏压并且将管状体的下游端通过套筒和裙部的底部推动到出口不被覆盖以用于正常流动操作的位置。当流量反向或正向压力差低于规定值时，弹簧将阀体返回关闭位置。

7. 发明授权

US5048612A Double nut setting tool and linger hanger assembly 失效
标题翻译：双螺母固定工具和挂钩组件
公开(公告)号：US5048612A
公开(公告)日：1991-09-17
申请号：US579654
申请日：1990-09-10
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B23/01 , E21B43/10
CPC分类号： E21B23/01 , E21B43/10
摘要： A setting tool for a liner hanger in an oil well completion system wherein the setting tool mechanism incorporates structure for manipulating a liner prior to and subsequent to hanging the liner hanger in a well casing. Prior to setting the liner hanger the setting tool is locked to a liner hanger by an interconnection with a clutch housing. After hanging the liner hanger, rotation of the setting tool mandrel uncouples the coupling nut from the liner hanger to release the setting tool from the liner hanger and further rotation of the setting tool moves a lock nut to a position when the coupling nut locks the clutch housing to the setting tool so that the liner hanger can be rotated after it is hung in a well casing. The liner hanger and the clutch housing have interengageable clutch surfaces.
摘要翻译：一种用于油井完井系统中的衬管悬挂器的固定工具，其中固定工具机构包括用于在衬套悬挂在井套管中之前和之后操纵衬套的结构。在设置衬管悬挂器之前，通过与离合器壳体的互连将定位工具锁定到衬管悬挂器。在悬挂衬管悬挂器之后，固定工具心轴的旋转使联接螺母从衬套悬挂器脱离，从衬套悬挂器释放固定工具，当安装螺母锁住离合器时，固定工具的进一步旋转将锁紧螺母移动到一个位置将其安装到固定工具上，使得衬垫悬挂架在悬挂在井套管中之后能够旋转。衬套和离合器壳体具有相互接合的离合器表面。

8. 发明授权

US4015662A Well tool which changes reciprocating movement to rotary motion 失效
标题翻译：将往复运动改变为旋转运动的井具
公开(公告)号：US4015662A
公开(公告)日：1977-04-05
申请号：US625259
申请日：1975-10-23
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： B08B9/043 , E21B4/02 , E21B4/20 , E21B23/04 , E21B41/00 , E21B43/00 , E21C3/00
CPC分类号： E21B41/00 , E21B23/04 , E21B4/02 , E21B4/20
摘要： A well tool comprising: a tubular housing adapted for fluid communicable connection with the lower end of a pipe string; a piston assembly carried by the housing for relative axial movement therein from a first to a second terminal position in response to fluid pressure communicated through the pipe string to a first pressure area on the piston assembly; a valve assembly carried by the housing and movable from a closed position to an opened position, in response to predetermined axial movement of the piston assembly, to permit the pipe string fluid pressure to be communicated to a second pressure area on the piston assembly opposing the first pressure area and forcing the piston assembly to return to its first terminal position; and a working member carried by the housing for movement in response to reciprocal movement of the piston assembly.
摘要翻译：一种井用工具，包括：适于与管柱的下端流体可连接连接的管状壳体; 由壳体承载的活塞组件，用于响应于通过管柱传递到活塞组件上的第一压力区域的流体压力而从第一至第二终端位置相对轴向运动; 阀组件，其承载于壳体并且可响应于活塞组件的预定的轴向运动而从关闭位置移动到打开位置，以允许管柱流体压力与活塞组件上相对的第二压力区域连通第一压力区域并迫使活塞组件返回到其第一终端位置; 以及由所述壳体承载以响应于所述活塞组件的往复运动而运动的工作构件。

9. 发明授权

US5058672A Landing collar and float valve assembly 失效
标题翻译：起落架和浮阀组件
公开(公告)号：US5058672A
公开(公告)日：1991-10-22
申请号：US566064
申请日：1990-08-13
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B21/10 , E21B23/01 , E21B23/06 , E21B33/129
CPC分类号： E21B33/129 , E21B21/10 , E21B23/01 , E21B23/06 , E21B33/1294
摘要： An assembly for installation within the end of a joint of casing or liner for use in a downhole environment where the liner or casing is disposed in the borehole which traverses earth formations. The assembly includes an annular split ring expander and an annular split ring slip element and a self-energizing packing element which has an interference fit with respect to the bore of a string of pipe. A mechanically operated setting tool has a set of nut members on a threaded mandrel which are selectively operated for setting the slip element of the assembly into a wedging engagement with the expander in the wall of a well pipe and for releasing the setting tool from the body of the assembly to leave the assembly installed within the end of a joint of casing or liner. An expander nut is threadedly coupled to the end of the body of the assembly to lock the slip member in position and the bore of the body is conformed to receive a valve and a landing collar arrangement.
摘要翻译：用于安装在壳体或衬套的接头的端部内的组件，用于井筒环境中，其中衬套或套管设置在穿过地层的钻孔中。组件包括环形开口环膨胀器和环形开口环滑动元件以及相对于一排管的孔的过盈配合的自增力填料元件。机械操作的固定工具在螺纹心轴上具有一组螺母构件，其被选择性地操作用于将组件的滑动元件设置成与井管壁中的膨胀器楔入接合，并且用于将定位工具从主体释放的组件将组件安装在套管或衬套的接头的端部内。膨胀螺母螺纹连接到组件的主体的端部，以将滑动构件锁定在适当位置，并且主体的孔被配合以接收阀和着陆轴环装置。

10. 发明授权

US5048611A Pressure operated circulation valve 失效
标题翻译：压力循环阀
公开(公告)号：US5048611A
公开(公告)日：1991-09-17
申请号：US533028
申请日：1990-06-04
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B21/10 , E21B34/10 , E21B34/14
CPC分类号： E21B21/103 , E21B34/103 , E21B34/14 , E21B2034/007
摘要： A circulating valve for use in oil field operations which is pressure operated without use of a wireline tool. The valve has a sleeve assembly with telescopically joined sleeve members normally closing off a circulation port in a mandrel. A pressure differential is utilized to shift the joined sleeve members to an unjoined condition opening the circulation ports. A second pressure differential is utilized to rejoin the sleeve members and close off the circulation ports. The sleeve members are independently shear pinned to the mandrel.
摘要翻译：用于油田作业的循环阀，在不使用电缆工具的情况下进行压力操作。阀具有套筒组件，其具有可伸缩连接的套筒构件，通常封闭心轴中的循环端口。使用压力差来将连接的套筒构件移动到打开循环端口的未连接状态。使用第二压差来重新连接套筒构件并且关闭循环端口。套筒构件独立地剪切固定在心轴上。

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