瓜胶压裂返排液配制环保型钻井液的工艺研究  

Preparation of Eco-friendly Drilling Fluid Using Guar Gum Fracturing Flowback Fluid

作　　者：艾浩辰 张凡 李志军 陈刚[1,3] AI Haochen;ZHANG Fan;LI Zhijun;CHEN Gang(Shaanxi Key Laboratory of Environmental Pollution Control and Reservoir Protection in Oil and Gas Field,College of Chemistry and Chemical Engineering,Xi’an Shiyou University,Xi’an 710065,China;Xi’an Changqing Chemical Group Co.Ltd.,Xi’an 710068,China;State Key Laboratory of Petroleum Pollution Control,CNPC Research Institute of Safety and Environmental Technology,Beijing 102206,China)

机构地区：[1]陕西省油气田环境污染控制技术与储层保护重点实验室,西安石油大学化学化工学院,陕西西安710065 [2]西安长庆化工集团有限公司,陕西西安710068 [3]石油石化污染物控制与处理国家重点实验室,中国石油安全环保技术研究院,北京102206

出　　处：《化工技术与开发》2022年第3期46-51,11,共7页Technology & Development of Chemical Industry

摘　　要：针对瓜胶压裂返排液存在的处理困难、高成本、低效果等问题,本文提出了利用瓜胶压裂返排液配制环保型钻井液的工艺。采用环保型钻井液处理剂,通过单因素分析、正交实验等多种方法,对各类钻井液进行性能检测,以寻找最佳的实验参数,确保瓜胶压裂返排液可以达到使用标准。从线性膨胀率等实验结果可知,利用瓜胶压裂返排液配制钻井液,能够很好地抑制膨润土的膨胀,抑制性优于4%KCl溶液。钻井液的可生化实验结果也显示,用瓜胶压裂返排液配制的钻井液有良好的环保性能。According to the problems of high difficulty,high cost and poor effect on the guar gum fracturing flowback fluid,the process of preparing eco-friendly drilling fluid by reusing the guar gum fracturing flowback fluid was proposed.The optimum conditions for the performance of drilling fluid prepared with guar gum fracturing flowback fluid were screened by the orthogonal designed experiments,range analysis and single-factor experiment using eco-friendly drilling fluid additives.According to the linear expansion rate and other different test results,it was found that using guar gum fracturing flowback fluid could restrain bentonite expansion well,and its inhibition was better than 4%KCl solution.Biochemical test results also showed that the drilling fluid prepared by guar gum fracturing flowback fluid had good environmental performance.

关 键 词：瓜胶压裂返排液 钻井液 抑制性 环保性 

分 类 号：TE254.4[石油与天然气工程—油气井工程]