发明名称 |
Water-based drilling fluids containing crosslinked polyacrylic acid |
摘要 |
<p>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 laponite 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.</p> |
申请公布号 |
AU2011345366(B2) |
申请公布日期 |
2016.01.21 |
申请号 |
AU20110345366 |
申请日期 |
2011.01.05 |
申请人 |
NEWPARK DRILLING FLUIDS, LLC |
发明人 |
BREEDEN, DAVID;GORDON, SCOTT |
分类号 |
C09K8/12;C09K8/24;F17D1/17 |
主分类号 |
C09K8/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|