发明授权
- 专利标题： Method of using a spacer for well control fluid
- 专利标题（中）： 使用间隔件进行井控流体的方法
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申请号： US381226申请日： 1982-05-24
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公开(公告)号： US4445576A公开(公告)日： 1984-05-01
- 发明人: Evelyn N. Drake , Yuh-hwang Tsao
- 申请人： Evelyn N. Drake , Yuh-hwang Tsao
- 申请人地址： NJ Florham Park TX Houston
- 专利权人： Exxon Research and Engineering Co.,Exxon Production Research Company
- 当前专利权人： Exxon Research and Engineering Co.,Exxon Production Research Company
- 当前专利权人地址： NJ Florham Park TX Houston
- 主分类号： C09K8/36
- IPC分类号： C09K8/36 ; C09K8/42 ; E21B33/138
摘要：
A spacer comprising the water-in-oil emulsion portion of a shear-thickening well control fluid is used to separate drilling mud from the shear-thickening fluid in the drill pipe in the well bore to avoid premature thickening of the shear thickening fluid in the drill pipe. The shear-thickening well control fluid comprises a water-in-oil emulsion in which is dispersed granular particles of hydratable, water expandable clay.
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