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1. 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。

2. 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。

3. 发明授权

US4519456A Continuous flow perforation washing tool and method 失效
标题翻译：连续流孔穿孔清洗工具及方法
公开(公告)号：US4519456A
公开(公告)日：1985-05-28
申请号：US640535
申请日：1984-08-13
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B33/124 , E21B37/08 , E21B37/00
CPC分类号： E21B33/1243 , E21B37/08
摘要： A continuous flow well bore perforation washing tool is shown of the type having a tubular mandrel with sidewalls defining a flow passage, an upper end for connection in a pipe string and a lower end with means for blocking the flow of fluid from the pipe string through the mandrel. Upper and lower pressure responsive packer assemblies are carried on opposite ends of the mandrel. An outer setting sleeve surrounds the mandrel between the packer assemblies to define an annular chamber between the mandrel and setting sleeve. A continuous flow passage communicates the mandrel interior, the annular chamber, and the well bore. Selectively sized orifices in the setting sleeve form a restriction in a portion of the continuous flow passage. By selectively sizing the orifices, a back pressure buildup can be created in the annular chamber which is used to set the packer assemblies as fluid is continuously flowed through the continuous flow passage.
摘要翻译：连续流动井眼穿孔清洗工具被示出为具有管状心轴，其具有限定流路的侧壁，用于在管柱中连接的上端，下端具有用于阻止流体从管柱穿过的装置心轴。上和下压力响应型封隔器组件承载在心轴的相对端上。外置套筒围绕封隔器组件之间的心轴以在心轴和固定套之间限定环形室。连续流动通道连通心轴内部，环形室和井眼。固定套筒中的选择尺寸的孔口在连续流动通道的一部分中形成限制。通过选择性地调整孔口尺寸，可以在环形室中产生背压累积，该环形室用于在流体连续流过连续流动通道时设置封隔器组件。

4. 发明授权

US4267675A Well working rig 失效
标题翻译：工作钻井平台
公开(公告)号：US4267675A
公开(公告)日：1981-05-19
申请号：US35848
申请日：1979-05-04
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B15/00 , B66C23/06
CPC分类号： E21B7/023
摘要： Disclosed is a rig for working on wells, and including a generally two-legged mast, with each leg constructed with a traveling pole telescoping about and along a gin pole. The mast may be so extended by means of a chain drive mounted on the traveling legs of the mast. Hydraulically-operated slips selectively lock each traveling leg to the respective gin pole to prevent the former from sliding down the latter. The mast may be lowered to, and raised from, a generally horizontal configuration for transport on a truck. A snubber, or other pipe gripping apparatus, may be suspended by the mast and folded under the mast as the mast is moved to a horizontal configuration. With the mast erect, a control console may be elevated by means of a winch line supported by the mast. The mast may be mounted on a skid carried by a truck, with the skid movable relative to the truck bed for the purpose of aligning the mast relative to a well.
摘要翻译：公开了一种在井上工作的钻机，并且包括一个大体上为双脚的桅杆，每个腿都用一根行走杆构成，围绕和沿着金杆杆伸缩。桅杆可以通过安装在桅杆的行进腿上的链条驱动器来延伸。液压操作的滑动件将每个行进的脚选择性地锁定到相应的金属杆上，以防止前者向下滑动。桅杆可以下降到大体上水平的构造并从其上升起，以便在卡车上运输。当桅杆移动到水平配置时，缓冲器或其它管道夹持装置可以被桅杆悬挂并在桅杆下方折叠。在桅杆竖立的情况下，可以通过桅杆支撑的绞车线提升控制台。桅杆可以安装在由卡车承载的滑道上，滑架可相对于卡车底座移动，以便相对于井对准桅杆。

5. 发明授权

US3934652A Apparatus and method for cementing well liners 失效
标题翻译：固井井筒的装置和方法
公开(公告)号：US3934652A
公开(公告)日：1976-01-27
申请号：US514624
申请日：1974-10-15
申请人： Chudleigh B. Cochran
发明人： Chudleigh B. Cochran
IPC分类号： E21B23/06 , E21B33/14 , E21B43/10 , E21B23/00
CPC分类号： E21B23/06 , E21B33/14 , E21B43/10
摘要： Apparatus and method for cementing a liner in a well bore in which the apparatus may comprise: a setting tool having a tubular mandrel connected in a pipe string for extension through the liner; a liner wiper releasably disposed within the liner near one end of the mandrel; a plug member for effecting a movable seal behind cement as it is pumped through the pipe string into the liner; a seal assembly sealingly engaging the exterior of the mandrel and the interior of the liner above the liner wiper; and a latch assembly releasably connecting the seal assembly to the liner so as to permit limited axial movement of the mandrel without disturbing the axial position of the seal assembly. In the method of cementing a liner using the apparatus, the force due to pressure applied to the seal assembly, during pumping of cement, is transferred to the liner without transfer to the mandrel.
摘要翻译：用于将衬垫固定在井眼中的装置和方法，其中装置可以包括：安装工具，其具有连接在管柱中以用于通过衬套延伸的管状心轴; 可释放地设置在靠近心轴的一端的衬垫内的衬里擦拭器; 塞子部件，用于在水泥被泵送通过管柱进入衬套后实现水泥后面的可移动密封; 密封组件密封地接合心轴的外部和在衬套擦拭器上方的衬垫的内部; 以及闩锁组件，其将密封组件可释放地连接到衬套，以便允许心轴的有限的轴向运动，而不会干扰密封组件的轴向位置。在使用该装置固定衬套的方法中，在泵送水泥期间由于施加到密封组件的压力引起的力被传递到衬套而不转移到心轴。

6. 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。

7. 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。

8. 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。

9. 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。

10. 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。

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