环保型强抑制成膜封堵页岩气水基钻井液研究与应用  

Research and application of environment-friendly water-based drilling fluid with strong inhibition film forming for plugging shale gas

作　　者：陆灯云 宋权 何盛江 LU Deng-yun;SONG Quan;HE Sheng-jiang(CCDC,Chengdu 610051,China;Western Drilling Tuha Drilling Co.,Tulufan 838000,China;Chengdu Xiyou Huawei Science&Technology Co.,Ltd.,Chengdu 610500,China)

机构地区：[1]中国石油川庆钻探工程有限公司,四川成都610051 [2]西部钻探吐哈钻井公司,新疆吐鲁番838000 [3]成都西油华巍科技有限公司,四川成都610500

出　　处：《应用化工》2022年第S01期303-306,310,共5页Applied Chemical Industry

摘　　要：在油基钻井液普遍应用的背景下,开发应用复杂地层需要的页岩气水基钻井液,满足绿色、安全、高效钻进,仍然是当前钻井液技术发展的趋势。以聚酰胺抑制剂JXA-1和成膜封堵剂FDM-1为依托,采用模块化设计,构建了CQ-SDM环保型强抑制成膜封堵页岩气水基钻井液体系。实验表明,体系的页岩抑制性强,封堵防塌能力强,润滑减阻好,能保持低粘切流变性,具有成膜造壁能力,且主要材料及配制的钻井液经生物毒性检测,均达到无毒标准,对环境友好。在1个井组4口页岩气水平井中试验应用,重复利用率100%。Under the background of the common application of oil-based drilling fluids,the development and application of high-performance water-based drilling fluids for complex formations to meet the needs of green,safe and efficient drilling is still the trend of drilling fluid technology development.Based on polyamide inhibitor JXA-1 and film-forming plugging agent FDM-1,an environmentally friendly CQ-SDM drilling fluid system with strong inhibition film was constructed by using modular design.The test results show that the system has strong shale inhibition,strong blocking and anti-sloughing ability,good lubrication and drag reduction,low viscosity and rheological property,film-forming ability,and the main materials and drilling fluids meet the standard of non-toxicity and are friendly to the environment.It has been applied to 4 horizontal shale gas wells in one well group,and the repeated utilization rate is 100%.

关 键 词：环保 抑制 成膜封堵 泥页岩地层 抗污染 

分 类 号：TE254[石油与天然气工程—油气井工程]