深共晶溶剂抑制页岩水化的应用与展望  

Application and Prospect of Deep Eutectic Solvent Inhibition in Shale Hydration

作　　者：白佳佳 顾添帅 陶磊 冯枭 陈明君[3] BAI Jiajia;GU Tianshuai;TAO Lei;FENG Xiao;CHEN Mingjun(School of Petroleum Engineering,Changzhou University,Changzhou,Jiangsu 213164;CNPC Engineering Technology R&D Company Limited,Beijing 102206;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500)

机构地区：[1]常州大学石油工程学院,江苏常州213164 [2]中国石油集团工程技术研究院有限公司,北京102206 [3]西南石油大学油气藏地质及开发工程国家重点实验室,成都610500

出　　处：《钻井液与完井液》2024年第2期141-147,共7页Drilling Fluid & Completion Fluid

基　　金：江苏省基础研究计划自然科学基金-青年基金项目“渗吸压裂液对页岩甲烷多尺度输运的损益双重效应研究”(BK20230646);江苏省研究生科研与实践创新计划项目“深共晶溶剂抑制黏土矿物水化机理研究”(KYCX23_3147)。

摘　　要：钻井过程中页岩水化常会诱发严重的井下安全事故,提高页岩井壁稳定性将极大地提高钻井成功率。深共晶溶剂(Deep eutectic solvent,DES)作为一种新型的绿色试剂,其性质与离子液体相类似,用途较为广泛。然而其作为水基钻井液添加剂在抑制页岩水化上的应用潜力尚未引起足够重视。相较于其他水基钻井液添加剂,DES具有不易燃、不易爆、无毒、易降解、电化学和热稳定性好等优点,并且DES价格便宜,来源广泛。在全面归纳总结DES的物理化学性质的基础上,讨论了DES作为水基钻井液添加剂抑制页岩水化的机理,并通过对DES的成本、对钻井液性能的影响进行分析,阐明了DES作为水化抑制剂在水基钻井液中的应用潜力。研究结果对DES在抑制页岩水化上的应用及其推广具有重要意义。Shale hydration during drilling often leads to serious downhole safety accidents,and improving the stability of shale borehole will greatly improve the success rate of drilling.As a new type of green reagent,deep eutectic solvent(DES)has similar properties to ionic liquids and is widely used.However,its potential as a water-based drilling fluid additive in inhibiting shale hydration has not attracted enough attention.Compared with other water-based drilling fluid additives,DES has the advantages of non-flammable,non-explosive,non-toxic,easy degradation,good electrochemical and thermal stability,and DES is cheap and comes from a wide range of sources.In this paper,on the basis of comprehensively summarizing the physical and chemical properties of DES,the mechanism of DES as a water-based drilling fluid additive to inhibit shale hydration is discussed,and the application potential of DES to inhibit shale hydration is clarified by analyzing the cost,the influence of DES on the performance of drilling fluid,and the application of DES.The results of this study are of great significance for the application and promotion of DES in inhibiting shale hydration.

关 键 词：深共晶溶剂 页岩 水基钻井液添加剂 抑制水化 

分 类 号：TE254.4[石油与天然气工程—油气井工程]