公开(公告)号：US4570714A

公开(公告)日：1986-02-18

申请号：US564756

申请日：1983-12-22

申请人： Dewayne Turner ,  Raymond A. Menard ,  Dean Oneal

发明人： Dewayne Turner ,  Raymond A. Menard ,  Dean Oneal

IPC分类号： E21B43/04

CPC分类号： E21B43/045

摘要： A well apparatus connected to a pipe string extending down into a cased borehole for treating a formation comprising a packer assembly for sealing with the casing assembly and an integral crossover/release assembly attached to the packer assembly for supporting and releasing a gravel screen assembly before or after treating the formation without rotating the pipe string. The crossover/release assembly includes crossover ports providing a downward flow path for the treating fluid, annular veins providing an upward flow path for the returns, and a reciprocating piston reciprocating upon effecting hydraulic pressure on the piston for releasing the gravel screen assembly.

摘要翻译： 连接到管柱的井设备，其向下延伸到套管钻孔中，用于处理包括用于与壳体组件密封的封隔器组件的结构，以及附接到封隔器组件的整体式交叉/释放组件，用于在或之前支撑和释放砾石筛组件 在不旋转管柱的情况下处理地层。 交叉/释放组件包括提供用于处理流体的向下流动路径的交叉端口，为返回提供向上流动路径的环形静脉，以及在活塞上施加液压以释放砾石筛网组件时往复运动的活塞。

公开(公告)号：US5988276A

公开(公告)日：1999-11-23

申请号：US976624

申请日：1997-11-25

申请人： Dean Oneal

发明人： Dean Oneal

IPC分类号： E21B23/01 ,  E21B33/12 ,  E21B33/129 ,  E21B23/06

CPC分类号： E21B33/1208 ,  E21B23/01 ,  E21B33/1293

摘要： A packer is provided which reduces the number of components required in a retrievable packer. The packer is compact in size, and convenient and economical in use. In a described embodiment, the packer includes seal carrying and gripping assemblies mounted on a mandrel. Axial compression of the assemblies causes a seal and grip structures carried on the assemblies to radially outwardly deflect. Each of the assemblies may be integrally formed, thereby further reducing the number of components needed to construct the packer. Each of the assemblies is usable separately on the mandrel to produce apparatus which only grippingly engage or only sealingly engage a tubular member in a well. The packer or similar apparatus is retrieved by releasing the force axially compressing the assemblies.

公开(公告)号：US6123148A

公开(公告)日：2000-09-26

申请号：US382268

申请日：1999-08-24

申请人： Dean Oneal

发明人： Dean Oneal

IPC分类号： E21B23/01 ,  E21B33/12 ,  E21B33/129 ,  E21B23/06

CPC分类号： E21B33/1208 ,  E21B23/01 ,  E21B33/1293

摘要： A packer is provided which reduces the number of components required in a retrievable packer. The packer is compact in size, and convenient and economical in use. In a described embodiment, the packer includes seal carrying and gripping assemblies mounted on a mandrel. Axial compression of the assemblies causes a seal and grip structures carried on the assemblies to radially outwardly deflect. Each of the assemblies may be integrally formed, thereby further reducing the number of components needed to construct the packer. Each of the assemblies is usable separately on the mandrel to produce apparatus which only grippingly engage or only sealingly engage a tubular member in a well. The packer or similar apparatus is retrieved by releasing the force axially compressing the assemblies.

摘要翻译： 提供了一种减少可检索封隔器所需部件数量的封隔器。 封隔器尺寸紧凑，使用方便，经济。 在所描述的实施例中，封隔器包括安装在心轴上的密封件承载和夹紧组件。 组件的轴向压缩导致承载在组件上的密封和夹持结构径向向外偏转。 每个组件可以一体地形成，从而进一步减少构造封隔器所需的部件的数量。 每个组件可以在心轴上分开使用，以产生仅夹紧地接合或仅密封地接合井中的管状构件的设备。 通过释放轴向压缩组件的力来回收封隔器或类似装置。