发明名称 |
Method of drilling a subterranean well with crosslinked polyacrylic acid |
摘要 |
A method of drilling a gas or oil well consists of use of a water-based drilling fluids containing high molecular weight crosslinked polyacrylic acid as viscosifying agent. The drilling fluid may further contain a lubricant, weighting agent and/or a wetting agent as well as a synthetic silicate or smectite clay. The aqueous based drilling fluid exhibits a coefficient of friction which is substantially close to the coefficient of friction of oil based drilling muds. The drilling fluid exhibits stability at well temperatures in excess of 150° C. |
申请公布号 |
US8623790(B2) |
申请公布日期 |
2014.01.07 |
申请号 |
US20100974764 |
申请日期 |
2010.12.21 |
申请人 |
BREEDEN DAVID L.;GORDON SCOTT;NEWPARK DRILLING FLUIDS LLC |
发明人 |
BREEDEN DAVID L.;GORDON SCOTT |
分类号 |
C09K8/12 |
主分类号 |
C09K8/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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