发明名称 Method and apparatus for cementing branch wells from a parent well
摘要 A novel apparatus and method for cementing branch wells from a parent well is disclosed herein. A cementing valve that is releasably coupled to a cementing stringer is used during cementing operations. The cementing valve is comprised of a valve body and a moveable member, each of which have openings formed therein. Movement of the moveable member opens or closes the cementing valve. The method involves releasably attaching the cementing valve to a cementing stinger, running the cementing valve downhole, positioning the cementing valve in a previously open branch outlet, and cementing the branch outlet and branching chamber into position within the well.
申请公布号 US6564867(B2) 申请公布日期 2003.05.20
申请号 US20010901739 申请日期 2001.07.10
申请人 SCHLUMBERGER TECHNOLOGY CORPORATION 发明人 OHMER HERVE
分类号 E21B7/06;E21B33/13;E21B34/12;E21B41/00;E21B43/10;(IPC1-7):E21B33/13 主分类号 E21B7/06
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