发明申请
- 专利标题: Triwall Hydrocarbon Well Recovery System and Method
- 专利标题(中): 三井烃回采系统及方法
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申请号: US14542938申请日: 2014-11-17
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公开(公告)号: US20150136415A1公开(公告)日: 2015-05-21
- 发明人: Rodney D. Smith
- 申请人: Rodney D. Smith
- 主分类号: E21B43/12
- IPC分类号: E21B43/12 ; E21B33/12
摘要:
A buoyant ball assisted hydrostatic lift system and method comprises a second annulus formed between a well bore and an outer pipe within the well bore, and a first annulus formed between the outer pipe and an inner pipe. The system includes a seal disposed on the second annulus on at least a top end and a bottom end thereof with respect to the earth's surface. The seal is configured to prevent a fluid flow there through and preserve a condition of the well bore and the outer pipe and protect the environment against well perforations. The system also includes buoyant balls entrained in a first fluid in one of the annuli and an entrained column of the buoyant balls in the first fluid in one of the annuli, an aggregate weight thereof configured to entrain the balls and the first fluid into a second fluid in the inner pipe.
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