发明名称 |
WELL TREATMENT FLUID |
摘要 |
<p>A method of drilling with a wellbore fluid, wherein the wellbore fluid forms a filtercake on a wellbore wall, that includes pumping the wellbore fluid with an oxidative degradable polymer and an inactivated oxidant; forming a filtercake in a downhole environment by the pumping of the wellbore fluid into a well and allowing some of the fluid to filter into a subterranean rock formation to produce a filtercake comprising the oxidative degradable polymer and inactivated oxidant; and removing the filtercake formed by the wellbore fluid from the wellbore walls by exposing the filterckae with a breaker fluid comprising an aqueous fluid, and at least one iminodiacetic acid or a salt thereof is disclosed.</p> |
申请公布号 |
EP2408999(A2) |
申请公布日期 |
2012.01.25 |
申请号 |
EP20100753946 |
申请日期 |
2010.03.16 |
申请人 |
M-I L.L.C.;M-I DRILLING FLUIDS UK LIMITED |
发明人 |
JONES, ANDREW;NAVARRO- MASCARELL, RAUL;LUYSTER, MARK |
分类号 |
E21B43/16;C09K8/467;C09K8/516;C09K8/536 |
主分类号 |
E21B43/16 |
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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