公开(公告)号：US20050016740A1

公开(公告)日：2005-01-27

申请号：US10778003

申请日：2004-02-12

申请人： Walter Aldaz ,  Andrew Duggan ,  James Whanger ,  Neil Abercrombie Simpson ,  Simon Harrall ,  James Oliver

发明人： Walter Aldaz ,  Andrew Duggan ,  James Whanger ,  Neil Abercrombie Simpson ,  Simon Harrall ,  James Oliver

IPC分类号： E21B33/00 ,  E21B33/124 ,  E21B33/127 ,  E21B43/08 ,  E21B43/10 ,  E21B33/12 ,  E21B23/00

CPC分类号： E21B33/1246 ,  E21B33/127 ,  E21B33/1277 ,  E21B43/08 ,  E21B43/103 ,  E21B43/108 ,  E21B2033/005

摘要： There is disclosed an expandable seal for sealing at least part of a wall of a well borehole, an expandable seal assembly comprising at least two such expandable seals, and a method of sealing at least part of a well borehole using such a seal. In one embodiment, the expandable seal (32) comprises an expandable tubular support member (34) and an inflatable seal element (36) mounted externally of the expandable tubular support member (34) for inflation radially outwardly into sealing engagement with at least part of a wall (50) of a well borehole (10). There is also disclosed a sealing apparatus for sealing at least one flow port in an expandable downhole tubular, in one embodiment, the sealing apparatus (332) comprising a sealing member (384) coupled to an expandable tubular (334), the sealing member (384) including a deformable portion (387) movable between a closed position preventing fluid flow through a flow port (356) and an open position permitting fluid flow through the flow port (356).

摘要翻译： 公开了一种用于密封井眼的壁的至少一部分的可膨胀密封件，包括至少两个这种可膨胀密封件的可膨胀密封组件，以及使用这种密封件密封井眼的至少一部分的方法。 在一个实施例中，可膨胀密封件（32）包括可膨胀管状支撑构件（34）和可膨胀密封元件（36），其可安装在可膨胀管状支撑构件（34）的外部，用于径向向外膨胀以与至少部分 井眼（10）的壁（50）。 还公开了一种用于密封可膨胀井下管中的至少一个流动口的密封装置，在一个实施例中，密封装置（332）包括联接到可膨胀管（334）的密封构件（384），密封构件 384）包括可在封闭位置之间移动的可变形部分（387），该封闭位置防止流过流动端口（356）的流体流动和允许流体流过流动端口（356）的打开位置。

公开(公告)号：US20050045337A1

公开(公告)日：2005-03-03

申请号：US10911223

申请日：2004-08-04

申请人： R.K. Bansal ,  David Brunnert ,  Michael Grayson ,  James Whanger ,  Evan Lowe ,  Abdolreza Gharesi ,  Tim Hanberry

发明人： R.K. Bansal ,  David Brunnert ,  Michael Grayson ,  James Whanger ,  Evan Lowe ,  Abdolreza Gharesi ,  Tim Hanberry

IPC分类号： E21B20060101 ,  E21B21/00 ,  E21B21/06 ,  E21B21/08 ,  E21B36/00 ,  E21B43/24

CPC分类号： E21B21/08 ,  E21B36/006 ,  E21B43/10 ,  E21B2021/006

摘要： Methods for forming a portion of a wellbore are provided. The well is drilled from a first selected depth to a second selected depth to form a bore through a surrounding earth formation. A fluid heating apparatus is disposed within the bore on a working string. Fluid is then heated by moving the fluid through the fluid heating apparatus in the wellbore. The process of circulating fluid adjacent the earth formation serves to also heat the surrounding formation so as to increase the fracture gradient. The fluid heating process may be conducted during a drilling procedure. Alternatively, the fluid heating process may be conducted in connection with a liner hanging and cementing process. A fluid flow restrictor is provided along a run-in assembly that serves to warm the fluids as they are circulated. The warm fluids provide convective heat to the surrounding earth formation, thereby reducing the formation's fracture gradient.

摘要翻译： 提供了形成井筒部分的方法。 井从第一选定深度钻到第二选定深度，以形成穿过周围地层的孔。 流体加热装置设置在工作柱内的孔内。 然后通过将流体移动通过井眼中的流体加热装置来加热流体。 围绕地层循环流体的过程还用于加热周围地层，以增加断裂梯度。 流体加热过程可以在钻井过程中进行。 或者，流体加热过程可以与衬管悬挂和固井过程相关地进行。 流体流量限制器沿着流入组件提供，用于在流体循环时使流体温暖。 温暖的流体为周围的地层提供对流热，从而减少地层的断裂梯度。