发明名称 |
DRILLING FLUID AND METHOD FOR DRILLING A WELLBORE |
摘要 |
A method for drilling a wellbore into a formation. The method includes: providing a mixed metal-viscosified drilling fluid including at least 1% potassium salt and/or at least 0.05% calcium sulfate; circulating the drilling fluid through the well; and drilling into a formation. An anionic thinner may be added if the clay concentration of the drilling fluid reaches a problematic level to adversely affect pumpability of the fluid.
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申请公布号 |
US2013126243(A1) |
申请公布日期 |
2013.05.23 |
申请号 |
US201313739980 |
申请日期 |
2013.01.11 |
申请人 |
TECH-STAR FLUID SYSTEMS INC.;TECH-STAR FLUID SYSTEMS INC. |
发明人 |
SMITH CARL KEITH |
分类号 |
C09K8/05 |
主分类号 |
C09K8/05 |
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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