公开(公告)号：US20120125619A1

公开(公告)日：2012-05-24

申请号：US13322763

申请日：2010-05-27

申请人： Peter Wood ,  Fraser Louden ,  Stuart Berry ,  Andrew John Gorrara ,  Duncan James Trinder

发明人： Peter Wood ,  Fraser Louden ,  Stuart Berry ,  Andrew John Gorrara ,  Duncan James Trinder

IPC分类号： E21B43/26 ,  E21B17/10

CPC分类号： E21B43/267 ,  E21B17/042 ,  E21B33/1212 ,  E21B33/1246 ,  E21B33/126 ,  E21B34/06 ,  E21B43/11 ,  E21B43/14 ,  E21B43/26 ,  E21B2034/007

摘要： A zonal isolation device (10; 20; 30; 300; 400; 500; 600) in the form of an active external casing packer is provided which includes a tubular section such as a casing or liner (1; 21; 31; 171; 203) arranged to be run into and secured within a larger diameter generally cylindrical structure such as an open borehole (163; 213). At least one sleeve member (3; 23; 33; 43; 173) is positioned on the exterior of the casing or liner and is sealed thereto and at least two deformable band members (201; 401, 403; 501) are provided around and are bonded to the outer circumference of the sleeve member. The sleeve member and the at least two deformable band members is/are expanded into place against the inner circumference of the open borehole by increasing the pressure within the sleeve member. The method detailed herein also provides zonal isolation by use of a pair of spaced apart sleeve members during a frac operation where frac fluid is supplied to a zone (in between the pair of sleeve members) requiring to be frac'd, where the frac pressure acts not only on the outside of the zonal isolation device but also on the interior of the sleeve member to enhance the seal provided thereby.

摘要翻译： 提供形式为活动外壳封隔器的区域隔离装置（10; 20; 30; 300; 400; 500; 600），其包括管状部分，例如壳体或衬套（1; 21; 31; 171; 203），其布置成进入并固定在诸如开放钻孔（163; 213）的较大直径的大致圆柱形结构内。 至少一个套筒构件（3; 23; 33; 43; 173）被定位在壳体或衬套的外部上并被密封在其上，并且至少两个可变形带构件（201; 401,403; 501） 被结合到套筒构件的外周。 套筒构件和至少两个可变形带构件通过增加套筒构件内的压力而膨胀到相对于开放钻孔的内圆周的位置。 本文详述的方法还提供了在压裂操作期间使用一对间隔开的套筒构件的区域隔离，其中压裂流体被供应到需要压裂的区域（在一对套筒构件之间），其中压裂压力 不仅在区域隔离装置的外部，而且在套筒构件的内部上起作用，以增强由此提供的密封。

公开(公告)号：US09217308B2

公开(公告)日：2015-12-22

申请号：US13322763

申请日：2010-05-27

申请人： Peter Wood ,  Fraser Louden ,  Stuart Berry ,  Andrew John Gorrara ,  Duncan James Trinder

发明人： Peter Wood ,  Fraser Louden ,  Stuart Berry ,  Andrew John Gorrara ,  Duncan James Trinder

IPC分类号： E21B33/124 ,  E21B33/12 ,  E21B43/26

CPC分类号： E21B43/267 ,  E21B17/042 ,  E21B33/1212 ,  E21B33/1246 ,  E21B33/126 ,  E21B34/06 ,  E21B43/11 ,  E21B43/14 ,  E21B43/26 ,  E21B2034/007

摘要： A zonal isolation device (10; 20; 30; 300; 400; 500; 600) in the form of an active external casing packer is provided which includes a tubular section such as a casing or liner (1; 21; 31; 171; 203) arranged to be run into and secured within a larger diameter generally cylindrical structure such as an open borehole (163; 213). At least one sleeve member (3; 23; 33; 43; 173) is positioned on the exterior of the casing or liner and is sealed thereto and at least two deformable band members (201; 401, 403; 501) are provided around and are bonded to the outer circumference of the sleeve member. The sleeve member and the at least two deformable band members is/are expanded into place against the inner circumference of the open borehole by increasing the pressure within the sleeve member. The method detailed herein also provides zonal isolation by use of a pair of spaced apart members during a frac operation where frac fluid is supplied to a zone (in between the pair of sleeve members) requiring to be frac'd, where the frac pressure acts not only on the outside of the zonal isolation device but also on the interior of the sleeve member to enhance the seal provided thereby.

摘要翻译： 提供形式为活动外壳封隔器的区域隔离装置（10; 20; 30; 300; 400; 500; 600），其包括管状部分，例如壳体或衬套（1; 21; 31; 171; 203），其布置成进入并固定在诸如开放钻孔（163; 213）的较大直径的大致圆柱形结构内。 至少一个套筒构件（3; 23; 33; 43; 173）被定位在壳体或衬套的外部上并被密封在其上，并且至少两个可变形带构件（201; 401,403; 501） 被结合到套筒构件的外周。 套筒构件和至少两个可变形带构件通过增加套筒构件内的压力而膨胀到相对于开放钻孔的内圆周的位置。 本文详述的方法还在压裂操作期间通过使用一对间隔开的构件提供区域隔离，其中压裂流体被供应到需要压裂的区域（在一对套筒构件之间），其中压裂压力作用 不仅在区域隔离装置的外部，而且在套筒构件的内部，以增强由此提供的密封。