公开(公告)号：US08505621B2

公开(公告)日：2013-08-13

申请号：US12750215

申请日：2010-03-30

Applicant: Stuart Alexander Telfer ,  Dan Parnell Saurer

Inventor： Stuart Alexander Telfer ,  Dan Parnell Saurer

IPC: E21B7/06 ,  E21B43/30

CPC classification number: E21B29/06 ,  E21B23/02

Abstract: Assemblies can be disposed in a subterranean bore. An assembly can include a recessed portion in an inner wall and another recessed portion in an outer wall. The recessed portions can each be configured to have a cross-sectional thickness that is less than at least another part of the assembly. The assembly can provide a seal between an inner region defined by the assembly and an environment exterior to the assembly prior to a window being created in the recessed portion in the outer wall through which a branch wellbore can be formed. The recessed portion in the inner wall can guide a cutting tool toward the recessed portion in the outer wall.

Abstract translation: 组件可以放置在地下孔中。 组件可以包括内壁中的凹陷部分和外壁中的另一凹部。 凹部可以各自被构造成具有小于组件的至少另一部分的横截面厚度。 组件可以在由组件限定的内部区域和组件外部的环境之间提供密封，然后在外壁中的凹陷部分中形成窗口，通过该凹部可以形成分支井筒。 内壁中的凹部可以将切割工具朝向外壁中的凹部引导。

公开(公告)号：US08215400B2

公开(公告)日：2012-07-10

申请号：US12915350

申请日：2010-10-29

Applicant: Thomas Owen Roane ,  Stuart Alexander Telfer

Inventor： Thomas Owen Roane ,  Stuart Alexander Telfer

IPC: E21B29/06

CPC classification number: E21B29/06 ,  E21B23/01

Abstract: A system for opening a window in a casing string (42) positioned in a wellbore (32). The system includes a hydraulic pressure intensifier (116) having a housing and a piston assembly with a differential piston area. The piston assembly is longitudinally shiftable relative to the housing and is initially secured relative thereto to prevent longitudinal movement therebetween. An anchor assembly (114) is operable to longitudinally secure the hydraulic pressure intensifier (116) within the casing string (42). A window opening tool (118) operably associated with the hydraulic pressure intensifier (116) is operably engagable with the casing string (42) such that when the anchor assembly (114) is longitudinally secured within the casing string (42) and the piston assembly is unsecured relative to the housing under hydrostatic pressure, longitudinal movement of the piston assembly transmits a force to the window opening tool (118), thereby opening the window in the casing string (42).

Abstract translation: 一种用于打开位于井眼（32）中的套管柱（42）中的窗口的系统。 该系统包括具有壳体的液压增压器（116）和具有差动活塞面积的活塞组件。 活塞组件可以相对于壳体纵向移动并且最初相对于其固定以防止它们之间的纵向运动。 锚固组件（114）可操作以将液压增压器（116）纵向固定在套管柱（42）内。 与液压增压器（116）可操作地相关联的开窗工具（118）可与套管柱（42）可操作地接合，使得当锚固组件（114）纵向固定在套管柱（42）内时，活塞组件 在静水压力下相对于壳体不固定，活塞组件的纵向运动将力传递到窗口打开工具（118），从而打开套管柱（42）中的窗口。

公开(公告)号：US20110240282A1

公开(公告)日：2011-10-06

申请号：US12750215

申请日：2010-03-30

Applicant: Stuart Alexander Telfer ,  Dan Parnell Saurer

Inventor： Stuart Alexander Telfer ,  Dan Parnell Saurer

IPC: E21B17/00 ,  E21B7/06

CPC classification number: E21B29/06 ,  E21B23/02

Abstract: Assemblies that can be disposed in a subterranean bore are described. An assembly can include a recessed portion in an inner wall and another recessed portion in an outer wall. The recessed portions can each be configured to have a cross-sectional thickness that is less than at least another part of the assembly. The assembly can provide a seal between an inner region defined by the assembly and an environment exterior to the assembly prior to a window being created in the recessed portion in the outer wall through which a branch wellbore can be formed. The recessed portion in the inner wall can guide a cutting tool toward the recessed portion in the outer wall.

Abstract translation: 描述了可以放置在地下孔中的组件。 组件可以包括内壁中的凹陷部分和外壁中的另一凹部。 凹部可以各自被构造成具有小于组件的至少另一部分的横截面厚度。 组件可以在由组件限定的内部区域和组件外部的环境之间提供密封，然后在外壁中的凹陷部分中形成窗口，通过该凹部可以形成分支井筒。 内壁中的凹部可以将切割工具朝向外壁中的凹部引导。

公开(公告)号：US20120103612A1

公开(公告)日：2012-05-03

申请号：US12915350

申请日：2010-10-29

Applicant: Thomas Owen Roane ,  Stuart Alexander Telfer

Inventor： Thomas Owen Roane ,  Stuart Alexander Telfer

IPC: E21B43/11

CPC classification number: E21B29/06 ,  E21B23/01

Abstract: A system for opening a window in a casing string (42) positioned in a wellbore (32). The system includes a hydraulic pressure intensifier (116) having a housing and a piston assembly with a differential piston area. The piston assembly is longitudinally shiftable relative to the housing and is initially secured relative thereto to prevent longitudinal movement therebetween. An anchor assembly (114) is operable to longitudinally secure the hydraulic pressure intensifier (116) within the casing string (42). A window opening tool (118) operably associated with the hydraulic pressure intensifier (116) is operably engagable with the casing string (42) such that when the anchor assembly (114) is longitudinally secured within the casing string (42) and the piston assembly is unsecured relative to the housing under hydrostatic pressure, longitudinal movement of the piston assembly transmits a force to the window opening tool (118), thereby opening the window in the casing string (42).

Abstract translation: 一种用于打开位于井眼（32）中的套管柱（42）中的窗口的系统。 该系统包括具有壳体的液压增压器（116）和具有差动活塞区域的活塞组件。 活塞组件可以相对于壳体纵向移动并且最初相对于其固定以防止它们之间的纵向运动。 锚固组件（114）可操作以将液压增压器（116）纵向固定在套管柱（42）内。 与液压增压器（116）可操作地相关联的开窗工具（118）可与套管柱（42）可操作地接合，使得当锚固组件（114）纵向固定在套管柱（42）内时，活塞组件 在静水压力下相对于壳体不固定，活塞组件的纵向运动将力传递到窗口打开工具（118），从而打开套管柱（42）中的窗口。