发明名称 |
PARTICULATE WEIGHTING AGENTS COMPRISING REMOVABLE COATINGS AND METHODS OF USING THE SAME |
摘要 |
Additives used in treatment fluids include particulate weighting agents comprising removable coatings which can be used in methods such as drilling and cementing operations; a method includes providing a treatment fluid for use in a subterranean formation, the treatment fluid including a coated particulate weighting agent including a core weighting agent having a first specific gravity and a removable polymer coating having a second specific gravity, the first specific gravity and the second specific gravity are not the same, introducing the treatment fluid into the subterranean formation, and allowing a portion of the removable polymer coating to be removed to alter the specific gravity of the coated particulate weighting agent down hole. |
申请公布号 |
CA2883654(A1) |
申请公布日期 |
2014.04.03 |
申请号 |
CA20132883654 |
申请日期 |
2013.09.24 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
VILLARREAL, ALFREDO;SHUMWAY, WILLIAM WALTER |
分类号 |
C09K8/03;C09K8/42;E21B43/22 |
主分类号 |
C09K8/03 |
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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