- 专利标题: Regulating downhole fluid flow rate using an multi-segmented fluid circulation system model
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申请号: US15527667申请日: 2014-12-31
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公开(公告)号: US10240414B2公开(公告)日: 2019-03-26
- 发明人: Xingyong Song , Jason D. Dykstra
- 申请人: HALLIBURTON ENERGY SERVICES, INC.
- 申请人地址: US TX Houston
- 专利权人: HALLIBURTON ENERGY SERVICES, INC.
- 当前专利权人: HALLIBURTON ENERGY SERVICES, INC.
- 当前专利权人地址: US TX Houston
- 代理机构: Polsinelli PC
- 国际申请: PCT/US2014/073045 WO 20141231
- 国际公布: WO2016/108907 WO 20160707
- 主分类号: E21B21/06
- IPC分类号: E21B21/06 ; E21B21/08 ; E21B31/03 ; E21B43/12 ; E21B19/16 ; E21B47/06
摘要:
A method for regulating a downhole fluid flow rate, in at least some embodiments, comprises partitioning a fluid circulation system into a sequence of segments, the sequence including a pump segment at one end and a drill bit segment at another end; obtaining a desired pressure for the drill bit segment; determining, for each of the segments in the sequence except for the drill bit segment, a desired pressure based at least in part on the desired pressure for a preceding segment in the sequence; determining a pump setting based on the desired pressure for the pump segment; and applying the pump setting to a pump used to move drilling fluid through the fluid circulation system.