抗高温高流变性大位移井清洁钻井液配方研发  

Research and Development of Clean Drilling Fluid Formulation With High Temperature Resistance and High Rheology for Extended-reach Wells

作　　者：刘永峰 赵军 左坤 于立国 LIU Yong-feng;ZHAO Jun;ZUO Kun;YU Guo-li(China National Offshore Oil(China)Co.,Ltd.Shenzhen Branch,Shenzhen Guangdong 518067,China;Key Laboratory of Petroleum Engineering of Ministry of Education,China University of Petroleum(Beijing),Beijing 102249,China;China Oilfield Services Ltd.Shenzhen Branch,Shenzhen Guangdong 518067,China)

机构地区：[1]中海石油(中国)有限公司深圳分公司,广东深圳518067 [2]中国石油大学(北京)石油工程教育部重点实验室,北京102249 [3]中海油田服务股份有限公司深圳分公司,广东深圳518067

出　　处：《当代化工》2022年第9期2194-2198,共5页Contemporary Chemical Industry

基　　金：国家自然科学基金青年基金,旋转钻柱动力屈曲临界条件与后屈曲蛇形摆动和螺旋涡动行为研究(项目编号:51904317);中海石油(中国)有限公司科研项目,南海东部大位移井高效作业技术研究(项目编号:YXKY-ZL-SZ-2019-02)。

摘　　要：随着大位移井数量增多,对钻井液抗高温、携岩能力要求越来越高。为研发更高性能钻井液体系,在原有钻井液中加入流型调节剂SDR来提高钻井液动塑比,提高钻井液抗高温能力。实验确定了流型调节剂SDR合成条件:温度50℃、引发剂(AIBN)加量0.2%、表面活性剂(SDS)加量3.5%、丙烯酰胺(AM)加量30%、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)加量60%、马来酸酐(M)加量10%;然后开展其调节流型能力、低剪切流变性能、静切力性能、抗温性能评价。结果表明:流型调节剂SDR具有良好的抗温性、高效携岩能力。最终确定了大位移井清洁钻井液体系配方,为该类型井钻井液研发提供参考。With the increase of the number of extended reach wells,the requirements for high temperature resistance and rock carrying capacity of drilling fluid are higher and higher.In order to develop higher performance drilling fluid system,flow pattern regulator SDR was added to the original drilling fluid to improve the dynamic plastic ratio and high temperature resistance of drilling fluid.The synthesis conditions of flow pattern regulator SDR were determined as follows:temperature 50℃,initiator(AIBN)0.2%,surfactant(SDS)3.5%,acrylamide(AM)30%,2-acrylamide-2-methylpropanesulfonic acid(AMPS)60%,maleic anhydride(M)10%;Then,its ability to regulate flow pattern,low shear rheological properties,static shear properties and temperature resistance properties were evaluated.The results showed that the flow pattern regulator SDR had good temperature resistance and high rock carrying capacity.Finally,the formula of clean drilling fluid system for extended reach wells was determined.The paper can provide some reference for the research and development of drilling fluid for this type of wells.

关 键 词：大位移井 抗高温 钻井液体系 流型调节剂SDR 流变参数 

分 类 号：TE254.6[石油与天然气工程—油气井工程]