
基本信息:
- 专利标题: DOWNHOLE DEBRIS REMOVAL TOOL
- 专利标题(中):井下除草工具
- 申请号:EP09725905.5 申请日:2009-03-27
- 公开(公告)号:EP2286059A2 公开(公告)日:2011-02-23
- 发明人: WOLF, John, C. , TELFER, George , ATKINS, James
- 申请人: M-i Drilling Fluids Uk Limited
- 申请人地址: Johnstone House 52-54 Rose Street Aberdeen, Scotland AB10 1UD GB
- 专利权人: M-i Drilling Fluids Uk Limited
- 当前专利权人: M-I DRILLING FLUIDS U.K. LIMITED
- 当前专利权人地址: M-I DRILLING FLUIDS U.K. LIMITED
- 代理机构: Giovannini, Francesca
- 优先权: US163685P 20090326; US40099P 20080327
- 国际公布: WO2009120957 20091001
- 主分类号: E21B31/08
- IPC分类号: E21B31/08 ; E21B37/00
摘要:
A downhole debris recovery tool including a ported sub coupled to a debris sub, a suction tube disposed in the debris sub, and an annular jet pump sub disposed in the ported sub and fluidly connected to the suction tube is disclosed. A method of removing debris from a wellbore including the steps of lowering a downhole debris removal tool into the wellbore, the downhole debris removal tool having an annular jet pump sub, a mixing tube, a diffuser, and a suction tube, flowing a fluid through a bore of the annular jet pump sub, jetting the fluid from the annular jet pump sub into the mixing tube, displacing an initially static fluid in the mixing tube through the diffuser, thereby creating a vacuum effect in the suction tube to draw a debris-laden fluid into the downhole debris removal tool, and removing the tool downhole debris removal tool from the wellbore after a predetermined time interval is also disclosed. Further, an isolation valve including a housing, an inner tube disposed coaxially with the housing, and a gate, wherein the gate is configured to selectively close an annular space between the housing and the inner tube is disclosed.
摘要(中):
公开了一种井下碎屑回收工具,其包括联接到碎屑接头的开口接头,设置在碎屑接头中的抽吸管以及设置在接口接头内并流体连接到抽吸管的环形喷射泵接头。 一种从井筒去除碎屑的方法,包括下列步骤:将井下碎屑去除工具降入井筒,井下碎片去除工具具有环形喷射泵子,混合管,扩散器和吸管,使流体流过 所述环形喷射泵子组件的孔将来自所述环形喷射泵子组件的流体喷射到所述混合管中,将混合管中的初始静态流体移动通过所述扩散器,由此在所述吸入管中产生真空效应以吸取碎屑 - 并且还公开了在预定的时间间隔之后将充满流体的流体引入井下碎片去除工具并且将工具井下碎片去除工具从井眼移除。 此外,公开了一种隔离阀,其包括壳体,与壳体同轴设置的内管和闸门,其中闸门构造成选择性地关闭壳体与内管之间的环形空间。
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 |
------E21B31/00 | 在井眼或井中打捞或排除物体 |
--------E21B31/08 | .用打捞篮或类似工具 |