公开(公告)号：US06779601B2

公开(公告)日：2004-08-24

申请号：US10346015

申请日：2003-01-15

申请人： Paul J. Wilson ,  Corey E. Hoffman

发明人： Paul J. Wilson ,  Corey E. Hoffman

IPC分类号： E21B33127

CPC分类号： E21B33/1295 ,  E21B33/1208 ,  E21B33/1212 ,  E21B33/127

摘要： An inflatable packing element for a bridge plug. The packing element has an anchor portion and a sealing cover portion, each of which is expanded in order to engage and seal a surrounding string of casing or borehole. The anchor portion has a minimum length defined by 2.63× the inner diameter of the surrounding pipe or other wellbore opening. At the same time, the anchor portion has a maximum length defined by approximately 49% of the length of the expanded portion of the packing element engaging the surrounding pipe or other wellbore opening.

摘要翻译： 一种用于桥塞的充气包装元件。 填料元件具有锚定部分和密封盖部分，每个部分被扩张以便接合和密封外壳或钻孔的周围的串。 锚定部分具有由周围管道或其他井筒开口的内径限定2.63倍的最小长度。 同时，锚固部分具有限定在与围绕管或其他井筒开口接合的填料元件的膨胀部分的长度的约49％的最大长度。

公开(公告)号：US06305477B1

公开(公告)日：2001-10-23

申请号：US09292452

申请日：1999-04-15

申请人： James V. Carisella ,  Paul J. Wilson

发明人： James V. Carisella ,  Paul J. Wilson

IPC分类号： E21B33122

CPC分类号： E21B33/127

摘要： A thermal compensating apparatus and method for maintaining a relatively constant fluid pressure within a subterranean well tool of the type that is responsive to a source of actuation fluid for manipulating said tool at a location in a well to at least one of sealing and anchoring positions. A body includes a fluid chamber within the body for housing a substantially incompressible fluid for manipulating said tool to at least one of the positions. The fluid chamber is expandable and contractible, for example, through movement of a piston, in response to manipulation of the tool and thereafter in response to thermal variations of the fluid in the fluid chamber. An energy storage and release mechanism, for example, a compression spring, is responsive to pressure changes in the fluid chamber for expanding or contracting the fluid chamber in response to pressure variations in the fluid for maintaining the fluid at a relatively constant pressure.

摘要翻译： 一种热补偿装置和方法，用于在地下钻井工具中保持相对恒定的流体压力，所述地下钻井工具响应于致动流体源，用于在井中的至少一个密封和锚定位置处操作所述工具。 主体包括在主体内的流体室，用于容纳基本上不可压缩的流体，用于将所述工具操纵至至少一个位置。 响应于工具的操纵，此后，响应于流体室中的流体的热变化，流体室可膨胀和收缩，例如通过活塞的移动。 能量储存和释放机构，例如压缩弹簧响应于流体室中的压力变化而响应于流体中的压力变化而膨胀或收缩流体室，以将流体保持在相对恒定的压力。

公开(公告)号：US06213217B1

公开(公告)日：2001-04-10

申请号：US09292530

申请日：1999-04-15

申请人： Paul J. Wilson ,  James V. Carisella

发明人： Paul J. Wilson ,  James V. Carisella

IPC分类号： E21B33127

CPC分类号： E21B33/127

摘要： A thermal compensating apparatus method for maintaining a substantially constant fluid pressure within a subterranean well tool of the type that includes a bladder that is selectively expandable upon the introduction of pressurized actuation fluid for actuating said tool at a location in a well. A body includes first and second fluid chambers. The first fluid chamber houses a substantially incompressible fluid and communicates with the actuating fluid used for activating said tool in the well. The second fluid chamber is charged with a compressible fluid. Both chambers define first volumetric sizes within the body upon actuation of said tool in the well. The fluid chambers are operatively connected to each other without transmitting fluid there between so that changes in the volumetric size of the first chamber caused by temperature variations in the actuation fluid will change the volumetric size of the second fluid chamber for maintaining the actuating fluid at a substantially constant pressure.

摘要翻译： 一种热补偿装置方法，用于在地下井工具内维持基本上恒定的流体压力，该地下钻井工具包括一个气囊，该气囊可以在引入用于在井中的位置致动所述工具的加压致动流体时选择性地膨胀。 主体包括第一和第二流体室。 第一流体室容纳基本上不可压缩的流体并与用于在井中激活所述工具的致动流体连通。 第二流体室装有可压缩流体。 两个腔室在井中致动所述工具时在体内限定第一体积尺寸。 流体室彼此可操作地连接而不在其间传输流体，使得由致动流体的温度变化引起的第一室的体积尺寸的变化将改变第二流体室的体积尺寸，以将致动流体保持在 基本恒定的压力。

公开(公告)号：US06341654B1

公开(公告)日：2002-01-29

申请号：US09292633

申请日：1999-04-15

申请人： Paul J. Wilson ,  James V. Carisella

发明人： Paul J. Wilson ,  James V. Carisella

IPC分类号： E21B3312

CPC分类号： E21B33/1275 ,  E21B27/02

摘要： An inflatable packer setting tool assembly is lowerable into a subterranean well bore and operable to set an inflatable packer therein. The tool assembly includes a fluid supply housing and a setting tool that is releasably interconnected to an inflatable packer. The setting tool further includes a pump that is fluidly interconnected with the inflatable packer and is operable to inflate the inflatable packer. The fluid supply housing is fluidly interconnected with the setting tool and includes an inflation fluid passageway that has an inlet and outlet which is fluidly interconnected with a suction side of the pump. The inlet is in the form of an aperture on an outer wall of the supply housing and functions to fluidly interconnect the passageway to a source of first inflation fluid present in the well bore when the setting tool assembly is lowered into the well bore. Further, a filter housing is situated in the supply housing so that the second inflation fluid must pass through the filter housing prior to passing through the inflation fluid passageway. The supply housing also includes a reservoir for containing a second inflation fluid, such as a water-soluble oil. The reservoir includes a spring-loaded movable piston that allows for the volume in the reservoir to vary (e.g., due to thermal expansion of the second inflation fluid). An outlet of the reservoir is fluidly interconnected with the inflation fluid passageway. Thus, the setting tool (i.e., the pump) is operable to draw first and second inflation fluids from the supply housing and to deliver a mixture of the first and second inflation fluids to the inflatable packer so as to inflate inflatable packer.

摘要翻译： 可充气封隔器固定工具组件可下降到地下井眼中，并可操作以将可充气封隔器设置在其中。 工具组件包括流体供应壳体和可释放地互连到充气封隔器的固定工具。 设置工具还包括与充气封隔器流体互连的泵，并且可操作以使充气封隔器充气。 流体供应壳体与设置工具流体地互连，并且包括充气流体通道，其具有与泵的吸入侧流体地互连的入口和出口。 入口处于供应壳体的外壁上的孔的形式，并且用于当定位工具组件下降到井眼中时将通道流体地互连到存在于井眼中的第一充气流体源。 此外，过滤器壳体位于供应壳体中，使得第二充气流体在通过充气流体通道之前必须通过过滤器壳体。 供应壳体还包括用于容纳第二充气流体（例如水溶性油）的储存器。 储存器包括弹簧加载的可移动活塞，其允许储存器中的体积变化（例如，由于第二充气流体的热膨胀）。 储存器的出口与膨胀流体通道流体地互连。 因此，固定工具（即，泵）可操作以从供应壳体中抽出第一和第二充气流体并且将第一和第二充气流体的混合物输送到可充气封隔器，以使充气封隔器充气。

公开(公告)号：US06202748B1

公开(公告)日：2001-03-20

申请号：US09292529

申请日：1999-04-15

申请人： James V. Carisella ,  Paul J. Wilson

发明人： James V. Carisella ,  Paul J. Wilson

IPC分类号： E21B33127

CPC分类号： E21B33/127

摘要： A thermal compensating apparatus and method for maintaining a substantially constant fluid pressure within a subterranean well tool of the type that includes a bladder that is selectively expandable upon the introduction of pressurized actuation fluid for actuating said tool at a location in a well. A multi-stage piston is movable in a housing. The piston includes a first surface in contact with the actuating fluid and a plurality of second surfaces in contact with well fluid surrounding the apparatus. The combined surface areas of the second surfaces are greater than the surface area of the first surface, so that expansion or contraction changes in the volume of the actuating fluid caused by temperature changes in the vicinity of the tool will result in movement of the piston for maintaining the actuating fluid at a relatively constant pressure.

摘要翻译： 一种热补偿装置和方法，用于在包括气囊的地下井工具内保持基本上恒定的流体压力，该气囊可以在引入用于在井中的位置致动所述工具的加压致动流体时选择性地膨胀。 多级活塞可在壳体中移动。 活塞包括与致动流体接触的第一表面和与围绕设备的井流体接触的多个第二表面。 第二表面的组合表面积大于第一表面的表面积，使得由于工具附近的温度变化引起的致动流体的膨胀或收缩变化将导致活塞的运动 将致动流体保持在相对恒定的压力。