发明申请
US20110160099A1 INVERT EMULSION WELLBORE FLUIDS AND METHOD FOR REDUCING TOXICITY THEREOF
审中-公开
反相乳液井筒和减少其毒性的方法
- 专利标题： INVERT EMULSION WELLBORE FLUIDS AND METHOD FOR REDUCING TOXICITY THEREOF
- 专利标题（中）： 反相乳液井筒和减少其毒性的方法
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申请号： US13063014申请日： 2008-09-11
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公开(公告)号： US20110160099A1公开(公告)日： 2011-06-30
- 发明人: Arvind D. Patel , Maribella Irving
- 申请人： Arvind D. Patel , Maribella Irving
- 申请人地址： US TX Houston
- 专利权人： M-I L.L.C.
- 当前专利权人： M-I L.L.C.
- 当前专利权人地址： US TX Houston
- 国际申请： PCT/US08/75934 WO 20080911
- 主分类号： C09K8/26
- IPC分类号： C09K8/26 ; C09K8/60 ; C09K8/50
摘要：
A method for reducing the toxicity of an invert emulsion wellbore fluid is disclosed. The method comprises forming an invert emulsion wellbore fluid comprising an oleaginous continuous phase, an aqueous discontinuous phase, and an emulsifying fluid, wherein the emulsifying fluid comprises a nitrogen-containing emulsifying agent and an alkalinity agent, and wherein the invert emulsion wellbore fluid produces an LC50 (SSP) of at least 30,000 parts per million at 3000° F.
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