- 专利标题： Controlling the Pressure Within an Annular Volume of a Wellbore
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申请号： US12641257申请日： 2009-12-17
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公开(公告)号： US20100163236A1公开(公告)日： 2010-07-01
- 发明人: Robert E. Hermes , Manuel E. Gonzalez , Brian C. Llewellyn , James B. Bloys , Don M. Coates
- 申请人： Robert E. Hermes , Manuel E. Gonzalez , Brian C. Llewellyn , James B. Bloys , Don M. Coates
- 专利权人： Chevron U.S.A. Inc.,Los Alamos National Security LLC
- 当前专利权人： Chevron U.S.A. Inc.,Los Alamos National Security LLC
- 主分类号： E21B33/13
- IPC分类号： E21B33/13
摘要：
A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.
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