抗高温油基钻井液润湿剂的研制及性能评价

Development and performance evaluation of wetting agent for high-temperature oil-based drilling fluids

唐力 黄贤斌 刘敏4

中国石化西南油气分公司元坝净化厂，四川 广元 628400 中国石化西南油气分公司页岩气项目部，重庆 402160 中国石油大学（华东）石油工程学院，山东 青岛 266580 中国石油长庆油田分公司第一采气厂，内蒙古 鄂尔多斯 017300

Yuanba Purification Plant, Southwest Oil & Gas Company, SINOPEC, Guangyuan 628400, China Shale Gas Project Department, Southwest Oil & Gas Company, SINOPEC, Chongqing 402160, China Petroleum Engineering College, China University of Petroleum, Qingdao 266580, China No.1 Gas Production Plant, Changqing Oilfield Company, PetroChina, Ordos 017300, China

抗高温润湿剂是配制抗高温油基钻井液的一种重要处理剂。通过有机胺、脂肪酸和乙二酸合成了抗高温油基钻井液润湿剂（TRWET）。室内对比评价了抗高温润湿剂、十二碳炔二醇聚氧乙烯醚类表面活性剂（SUPERWET）和阳离子表面活性剂（CTAB）3种润湿剂的表面张力、接触角和吸光度提高率。实验结果表明：3种润湿剂改变重晶石润湿能力从强到弱的顺序依次为TRWET，SUPERWET，CTAB，合成的TRWET具有更好的润湿能力。TRWET加入油基钻井液中，不仅可以改善油基钻井液性能，而且抗温可达200 ℃。

High temperature wetting agent is an important treatment agent for preparing high-temperature oil-based drilling fluid. A high-temperature oil-based drilling fluid, wetting agent TRWET, was synthesized from organic amines， fatty acids， and oxalic acid; the surface tension， contact angle and absorbance increase rate of TRWET, a polyoxyethylene ether surfactant SUPERWET and a cationic surfactant CTAB were compared. The experimental results show that the order of the wetting ability of the three wetting agents to improve the barite is TRWET>SUPERWET>CTAB， and the synthesized TRWET has the better wetting ability. The addition of nonionic wetting agents to oil-based drilling fluids not only improves the performance of oil-based drilling fluids， but also resists temperatures up to 200 ℃.

10.6056/dkyqt201901021