发明名称 |
METHODS OF DRILLING WELL BORES USING INVERTIBLE OIL EXTERNAL-WATER INTERNAL DRILLING FLUIDS |
摘要 |
Methods of drilling well bores using an invertible oil external-water intern al emulsion drilling fluid and then inverting the drilling fluid to a water external-oil internal emulsion are provided. The methods basically comprise the steps of contacting the oil external-water internal emulsion with an aqueous acid solution containing an anionic sulfonate surfactant for preventing aqueous acid solution-crude oil emulsions and crude oil sludging and a chemical for preventing the anionic sulfonate surfactant from reacting with the emulsifier in the oil external-water internal emulsion.
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申请公布号 |
CA2403079(A1) |
申请公布日期 |
2003.03.14 |
申请号 |
CA20022403079 |
申请日期 |
2002.09.13 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
KING, KAREN L.;GARDNER, TOMMY R.;ARNOLD, SUZANNE;TAYLOR, ROBERT S. |
分类号 |
C09K8/28;C09K8/36;C09K8/64;(IPC1-7):E21B7/00 |
主分类号 |
C09K8/28 |
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代理人 |
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地址 |
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