发明申请
- 专利标题: DOWNHOLE SAMPLING TOOL AND METHOD FOR USING SAME
- 专利标题(中): 卧式采样工具及其使用方法
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申请号: US12277664申请日: 2008-11-25
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公开(公告)号: US20090194279A1公开(公告)日: 2009-08-06
- 发明人: Jeffrey A. Tarvin , Julian J. Pop , Simon H. Bittleston , Angus J. Melbourne , Rogerio T. Ramos
- 申请人: Jeffrey A. Tarvin , Julian J. Pop , Simon H. Bittleston , Angus J. Melbourne , Rogerio T. Ramos
- 主分类号: E21B49/10
- IPC分类号: E21B49/10 ; E21B49/08
摘要:
Methods and apparatuses for sampling fluid from a subterranean formation penetrated by a wellbore are provided. The subterranean formation has clean formation fluid therein, and the wellbore has a contaminated fluid therein extending into an invaded zone about the wellbore. A shaft is extended from a housing and positioned in a perforation in a sidewall of the wellbore. At least one flowline extends through the shaft and into the housing. The flowline(s) are adapted to receive downhole fluids through the perforation. At least one fluid restrictor, such as a packer, injection fluid or flow inhibitor, may be used to isolate at least a portion of the perforation whereby contaminated fluid is prevented from entering the isolated portion of the perforation. At least one pump selectively draws fluid into the flowline(s).
公开/授权文献
- US07703517B2 Downhole sampling tool and method for using same 公开/授权日:2010-04-27
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