超低油水比油包水乳液的探索性制备及评价
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摘要
根据油包水型乳化钻井液的作用机理及应用特点[1],通过与常规油水比的油基钻井液体系性能及特点进行对比,研选合适的乳化剂来制备低油水比(体积比油相︰水相<50︰50)的油包水乳液并进行室内评价,并通过调整阴阳离子表面活性剂体系的分子结构和基团比例,以保证超低油水比下的乳液粘度和乳化稳定性,这一探索性技术如能研究成功将会大大降低油基钻井液的使用成本。
According to the mechanism and application characteristics of water-in-oil emulsified drilling fluid [1], comparisons with conventional oil-based drilli-ng fluids, the appropriate emulsifier was used to prepare low oil-water ratio(volume ratio of oil phase︰water phase<50/50) and evaluated,by adjusting the molecular structure and group ratio of the anionic and cationic surfactant syste-m to ensure the emulsion viscosity and emulsion stability at ultra-low oil/waterratio,If this exploratory technology is successful, it will reduce the cost of oil-based drilling fluids.
According to the mechanism and application characteristics of water-in-oil emulsified drilling fluid [1], comparisons with conventional oil-based drilli-ng fluids, the appropriate emulsifier was used to prepare low oil-water ratio(volume ratio of oil phase︰water phase<50/50) and evaluated,by adjusting the molecular structure and group ratio of the anionic and cationic surfactant syste-m to ensure the emulsion viscosity and emulsion stability at ultra-low oil/waterratio,If this exploratory technology is successful, it will reduce the cost of oil-based drilling fluids.
引文
[1]王中华.国内外油基钻井液研究与应用进展[J].断块油气田,2011,4,533-536.
[2]Shultz S M,Schultz K L,Pageman R C.Drilling aspects of thedeepest well in California[J].SPE 18790,1989;
[3]Malachosky Ed,Shannon B E,Jackson J E,et al.Offshore disposal of oil-based drilling-fluid waste an environmentally acceptable solution[J].SPE Drilling&Completion,1993,84:283-287;
[4]Chengcheng Z,Xinhao C,Jianbin H,et al.The Evolution of Self-assemblies in the Mixed System of Oleic Acid/Diethylenetriamine Based on the Transformation of Electrostatic Interactions and Hydrogen Bonds[J].Soft Matter,2014,10:8023-803.
[5]高海洋,黄进军,崔茂荣,等.高温下乳状液稳定性的评价方法[J].西南石油学院学报,2001,23(4):57-58;
[6]Benjamin Herzhaft Lionel,Rousseau Laurent Neau,et al.Influence of temperature and clays/emulsion microstructure on oil-based mud low shear rate rheology[J].SPE,2003,83,211-217.
[7]黄红玺,张峰,许明标,等.油包水乳状液稳定性影响因素分析[J].断块油气田,2009,16(6):99-101.
[2]Shultz S M,Schultz K L,Pageman R C.Drilling aspects of thedeepest well in California[J].SPE 18790,1989;
[3]Malachosky Ed,Shannon B E,Jackson J E,et al.Offshore disposal of oil-based drilling-fluid waste an environmentally acceptable solution[J].SPE Drilling&Completion,1993,84:283-287;
[4]Chengcheng Z,Xinhao C,Jianbin H,et al.The Evolution of Self-assemblies in the Mixed System of Oleic Acid/Diethylenetriamine Based on the Transformation of Electrostatic Interactions and Hydrogen Bonds[J].Soft Matter,2014,10:8023-803.
[5]高海洋,黄进军,崔茂荣,等.高温下乳状液稳定性的评价方法[J].西南石油学院学报,2001,23(4):57-58;
[6]Benjamin Herzhaft Lionel,Rousseau Laurent Neau,et al.Influence of temperature and clays/emulsion microstructure on oil-based mud low shear rate rheology[J].SPE,2003,83,211-217.
[7]黄红玺,张峰,许明标,等.油包水乳状液稳定性影响因素分析[J].断块油气田,2009,16(6):99-101.