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公开(公告)号：USRE32343E
公开(公告)日：1987-02-03
申请号：US713914
申请日：1985-03-20
CPC分类号： E21B43/121 , E21B34/105 , E21B2034/002 , Y10T137/87161
摘要： A retrievable well safety valve in a cased well system including a tubing string, a dual packer downhole around the tubing sealing with the casing and submersible pump in the tubing string below the packer.The safety valve controls flow of pumped fluids through the tubing to surface and directs gas flow into the casing annulus above the packer. When the safety valve is landed in cooperating tubing nipples above the packer, separated central annular flow passages are formed for pumped fluids and gas respectively.A ball valve in the central flow passage controls pumped fluid flow therethrough and an annular valve coupled to the ball valve controls gas flow from below the packer through the annular flow passage around and by the ball valve.When the ball valve is in the down and open position, the valve ball member engages a lower seat, which maintains the central and annular flow passages separate and prevents comingling flow of fluids and gas.The coupled valves are held open by pressured fluid from surface and are closed automatically on loss of pressure in their control fluid circuits.When the valves close, a circuit of flow passages for recirculating pumped fluids and gas are opened below the ball valve and the pump may continue operation without overload.
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公开(公告)号：US4461353A
公开(公告)日：1984-07-24
申请号：US401005
申请日：1982-07-22
CPC分类号： E21B34/105 , E21B43/121 , E21B2034/002 , Y10T137/87161
摘要： A retrievable well safety valve in a cased well system including a tubing string, a dual packer downhole around the tubing sealing with the casing and submersible pump in the tubing string below the packer.The safety valve controls flow of pumped fluids through the tubing to surface and directs gas flow into the casing annulus above the packer. When the safety valve is landed in cooperating tubing nipples above the packer, separated central annular flow passages are formed for pumped fluids and gas respectively.A ball valve in the central flow passage controls pumped fluid flow therethrough and an annular valve coupled to the ball valve controls gas flow from below the packer through the annular flow passage around and by the ball valve.When the ball valve is in the down and open position, the valve ball member engages a lower seat, which maintains the central and annular flow passages separate and prevents comingling flow of fluids and gas.The coupled valves are held open by pressured fluid from surface and are closed automatically on loss of pressure in their control fluid circuits.When the valves close, a circuit of flow passages for recirculating pumped fluids and gas are opened below the ball valve and the pump may continue operation without overload.
摘要翻译： 一种套管井系统中的可回收井安全阀，包括油管柱，围绕油管的双封隔器井下，以及封隔器下方的油管柱中的潜油泵。 安全阀控制泵送流体通过管道到达表面的流动，并将气流引导到封隔器上方的壳体环空中。 当安全阀降落在封隔器上方的配套管接头上时，分别形成了用于泵送的流体和气体的分离的中心环形流动通道。 中央流动通道中的球阀控制泵送的流体流过其中，并且连接到球阀的环形阀控制气体从封隔器下方通过围绕球阀的环形流动通道。 当球阀处于向下和打开位置时，阀球构件接合下座，其将中心和环形流动通道分开并防止流体和气体的流出。 联动阀门由压力流体从表面保持打开，并在其控制流体回路中的压力损失时自动关闭。 当阀关闭时，用于循环泵送流体和气体的流动通道的回路在球阀下方打开，并且泵可以继续运行而不会过载。
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公开(公告)号：US06302217B1
公开(公告)日：2001-10-16
申请号：US09250931
申请日：1999-02-18
申请人： Marion D. Kilgore , Robert L. Hilts
发明人： Marion D. Kilgore , Robert L. Hilts
IPC分类号： E21B2306
CPC分类号： E21B33/1295 , E21B33/1293
摘要： Apparatus and methods are provided for anchoring within tubular structures and releasing therefrom. In a described embodiment, a packer includes multiple debris barriers, which are deployed when slips of the packer are radially outwardly extended. The debris barriers prevent debris from settling about the slips, thereby enhancing convenient retrieval of the packer. Use of the debris barriers may also permit control over how the slips are extended.
摘要翻译： 提供了用于锚定在管状结构内并从其释放的装置和方法。 在所描述的实施例中，封隔器包括多个碎屑屏障，当封隔器的滑动件径向向外延伸时，其被展开。 碎片屏障防止碎屑沉积在滑块上，从而增强打包机的方便检索。 使用碎片障碍物也可以控制滑块的延伸方式。
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公开(公告)号：US06478093B1
公开(公告)日：2002-11-12
申请号：US09676136
申请日：2000-09-29
IPC分类号： E21B3312
CPC分类号： E21B33/1208 , E21B23/00
摘要： An apparatus and method for installing and removing packer assemblies from a subterranean well. A packer assembly has a stop that prevents the seal assembly from relaxing. The stop is cut axially by use of a chemically reactive cutter device lowered into the well and activated by use of conventional wire line equipment. Once cut, the seal assembly on the packer is allowed to relax and can be removed intact from the well.
摘要翻译： 一种用于从地下井安装和移除封隔器组件的装置和方法。 封隔器组件具有阻止密封组件放松的止挡件。 通过使用下降到井中的化学反应性切割装置并通过使用常规的有线线路设备来激活止动件。 一旦切割，封隔器上的密封组件被允许放松，并且可以从井中完好地移除。
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公开(公告)号：US6112811A
公开(公告)日：2000-09-05
申请号：US004394
申请日：1998-01-08
申请人： Marion D. Kilgore , Robert L. Hilts
发明人： Marion D. Kilgore , Robert L. Hilts
IPC分类号： E21B33/1295 , E21B23/06 , E21B33/12
CPC分类号： E21B33/1295
摘要： Apparatus and methods are provided for anchoring within tubular structures and releasing therefrom. A packer capable of withstanding very large combined loads and differential pressures is provided with multiple dual slips. The packer uniquely distributes forces resulting from the loads and differential pressures among its slips, thereby minimizing damage to the tubular structure. In addition, the packer includes a debris barrier and a release device which permit convenient retrieval of the packer.
摘要翻译： 提供了用于锚定在管状结构内并从其释放的装置和方法。 能够承受非常大的组合负载和差压的封隔器具有多个双滑块。 封隔器独特地分配由其中的载荷和压差产生的力，从而最小化对管状结构的损伤。 此外，封隔器包括碎片挡板和释放装置，其允许方便地取回封隔器。
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公开(公告)号：US5730221A
公开(公告)日：1998-03-24
申请号：US680740
申请日：1996-07-15
摘要： Methods of completing a subterranean well provide access to a portion of a parent wellbore which has been closed off by a lateral wellbore liner. In a preferred embodiment, a method includes the steps of depositing cement in the lateral wellbore liner and then drilling through the cement and liner utilizing a bent motor housing conveyed on coiled tubing. The cement provides lateral support for a cutting tool while it is milling through the liner.
摘要翻译： 完成地下井的方法提供了通过侧井筒衬套封闭的母井孔的一部分的通路。 在优选实施例中，一种方法包括以下步骤：将水泥沉积在侧井筒衬里中，然后利用在连续油管上输送的弯曲的马达壳体钻穿水泥和衬套。 当铣削通过衬套时，水泥为切削工具提供横向支撑。
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7.发明授权
公开(公告)号：US5833003A
公开(公告)日：1998-11-10
申请号：US682050
申请日：1996-07-15
摘要： Apparatus and associated methods of using provide subterranean well completion wherein a lateral wellbore liner has divided a parent wellbore. In a preferred embodiment, a sidewall cutting apparatus is positionable within the liner and has a cutting tool which is radially outwardly extendable to cut an opening through the liner, thereby regaining access to a portion of the parent wellbore. An illustrated embodiment utilizes a telemetry-controlled lateral displacement mechanism to extend and retract the cutting tool.
摘要翻译： 装置和相关联的使用方法提供地下井完井，其中侧井筒衬里已经划分了母井孔。 在优选实施例中，侧壁切割装置可定位在衬套内并且具有径向向外延伸的切割工具，以切割通过衬套的开口，从而重新接近母井孔的一部分。 所示实施例利用遥测控制的侧向位移机构来延伸和缩回切割工具。
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公开(公告)号：US4524833A
公开(公告)日：1985-06-25
申请号：US535214
申请日：1983-09-23
申请人： Robert L. Hilts , Robert W. Crow
发明人： Robert L. Hilts , Robert W. Crow
IPC分类号： E21B23/03
CPC分类号： E21B23/03
摘要： Apparatus and methods for installing a well tool device in the offset receptacle of a side pocket mandrel in predetermined oriented relation therein.
摘要翻译： 用于将井具装置安装在侧袋心轴的偏移容器中并以预定取向关系安装的装置和方法。
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