发明授权
- 专利标题： Application of multiphase generation process in a CO.sub.2 flood for high temperature reservoirs
- 专利标题（中）： 多相生成过程在二氧化碳洪水中的应用于高温水库
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申请号： US492006申请日： 1990-03-12
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公开(公告)号： US5046561A公开(公告)日： 1991-09-10
- 发明人: Wann-Sheng Huang , Jack J. Hsu
- 申请人： Wann-Sheng Huang , Jack J. Hsu
- 申请人地址： NY White Plains
- 专利权人： Texaco Inc.
- 当前专利权人： Texaco Inc.
- 当前专利权人地址： NY White Plains
- 主分类号： E21B43/16
- IPC分类号： E21B43/16 ; E21B43/24
摘要：
A high temperature reservoir is preconditioned by injection of cold water until a zone around the injection well reaches a temperature suitable for multiphase generation conditions. A subsequent carbon dioxide injection creates a multiphase slug near the wellbore region. The multiphase slug is propagated through the reservoir by continued injection of CO.sub.2 or water alternating with gaseous CO.sub.2.
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