基本信息:
- 专利标题: PERMEABLE LOST CIRCULATION DRILLING LINER
- 专利标题(中):可渗透的循环钻井内胆
- 申请号:PCT/US2012055413 申请日:2012-09-14
- 公开(公告)号:WO2013043489A2 公开(公告)日:2013-03-28
- 发明人: ALLEN JOHN TIMOTHY , BOULDIN BRETT W
- 申请人: SAUDI ARABIAN OIL CO , ALLEN JOHN TIMOTHY , BOULDIN BRETT W
- 专利权人: SAUDI ARABIAN OIL CO,ALLEN JOHN TIMOTHY,BOULDIN BRETT W
- 当前专利权人: SAUDI ARABIAN OIL CO,ALLEN JOHN TIMOTHY,BOULDIN BRETT W
- 优先权: US201161536797 2011-09-20
- 主分类号: E21B19/00
- IPC分类号: E21B19/00
摘要:
A layer of permeable material is positioned on an area of lost circulation lithology in a wellbore. An example of the permeable material includes a planar member with perforations that is rolled into and retained in an annular configuration. The permeable material is lowered into the wellbore adjacent the area of lost circulation and allowed to unroll and expand radially outward against walls of the wellbore. The wellbore wall along the area of lost circulation lithology can be reamed out so the layer of permeable material is out of the way of a drill bit. A bridging agent can be applied on the interface where the permeable material contacts the wellbore wall.
摘要(中):
一层可渗透材料位于井筒内的漏失区域。 可渗透材料的实例包括具有滚动并保持在环形构造中的穿孔的平面构件。 可渗透材料在邻近泄漏区域的下方进入井筒,并允许其径向向外展开并抵靠井眼的壁。 沿着漏失区域的井筒壁可以扩展,因此可渗透材料层不合钻头。 可以在可渗透材料接触井筒壁的界面上施加桥接剂。
IPC结构图谱:
E | 固定建筑物 |
--E21 | 土层或岩石的钻进;采矿 |
----E21B | 土层或岩石的钻进;从井中开采油、气、水、可溶解或可熔化物质或矿物泥浆 |
------E21B19/00 | 在井眼外,例如,在井架内搬运钻杆、套管、管子或类似物;用于给进钻杆或者钢丝绳的装置 |