公开(公告)号：US08544549B2

公开(公告)日：2013-10-01

申请号：US13608767

申请日：2012-09-10

申请人： Joe Noske ,  David Iblings ,  David Pavel ,  David J. Brunnert ,  Paul Smith ,  Michael Brian Grayson

发明人： Joe Noske ,  David Iblings ,  David Pavel ,  David J. Brunnert ,  Paul Smith ,  Michael Brian Grayson

IPC分类号： E21B34/06 ,  E21B34/12

CPC分类号： E21B34/14 ,  E21B21/08 ,  E21B21/10 ,  E21B2034/005 ,  Y10T137/7898

摘要： Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV.

摘要翻译： 方法和装置能够在延伸穿过设置在钻孔中的套管柱的孔的两个部分之间实现可靠和改进的隔离。 井下展开阀（DDV）可以利用诸如挡板的阀构件来提供隔离，所述阀构件设置在DDV的壳体中并被设计成抵靠壳体内的座。 DDV包括用于打开/关闭DDV的操作机构。 在使用中，与井表面流体连通的井的一部分中的压力可以在井表面被排出并打开，同时保持套管柱的另一部分中的压力超过DDV。

公开(公告)号：US08534362B2

公开(公告)日：2013-09-17

申请号：US13608784

申请日：2012-09-10

申请人： Joe Noske ,  David Iblings ,  David Pavel ,  David J. Brunnert ,  Paul Smith ,  Michael Brian Grayson

发明人： Joe Noske ,  David Iblings ,  David Pavel ,  David J. Brunnert ,  Paul Smith ,  Michael Brian Grayson

IPC分类号： E21B34/06 ,  E21B34/12

CPC分类号： E21B34/14 ,  E21B21/08 ,  E21B21/10 ,  E21B2034/005 ,  Y10T137/7898

摘要： Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV.

公开(公告)号：US08522878B2

公开(公告)日：2013-09-03

申请号：US13608740

申请日：2012-09-10

申请人： Joe Noske ,  David Iblings ,  David Pavel ,  David J. Brunnert ,  Paul Smith ,  Michael Brian Grayson

发明人： Joe Noske ,  David Iblings ,  David Pavel ,  David J. Brunnert ,  Paul Smith ,  Michael Brian Grayson

IPC分类号： E21B34/06 ,  E21B34/12

CPC分类号： E21B34/14 ,  E21B21/08 ,  E21B21/10 ,  E21B2034/005 ,  Y10T137/7898

摘要： Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV.