发明授权
- 专利标题: Method for drilling wells
- 专利标题(中): 钻井方法
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申请号: US671630申请日: 1991-03-19
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公开(公告)号: US5083622A公开(公告)日: 1992-01-28
- 发明人: Arthur H. Hale , George C. Blytas , Ashok K. R. Dewan
- 申请人: Arthur H. Hale , George C. Blytas , Ashok K. R. Dewan
- 申请人地址: TX Houston
- 专利权人: Shell Oil Company
- 当前专利权人: Shell Oil Company
- 当前专利权人地址: TX Houston
- 主分类号: C09K8/24
- IPC分类号: C09K8/24
摘要:
Drilling fluid properties are enhanced by incorporation thereinto of a cyclicetherpolyol such as a cyclic dimer of glycerol and, optionally, a polyol such as glycerol or a monoalicyclicpolyol, and/or salt.
公开/授权文献
- US5959941A Electronic watch 公开/授权日:1999-09-28
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