超深层耐高温压裂液研究进展与展望  

Advances and prospects of high temperature-resistant fracturing fluid in ultra-deep reservoir

作　　者：徐忠正 赵明伟[1,2] 刘佳伟 戴彩丽 XU Zhongzheng;ZHAO Mingwei;LIU Jiawei;DAI Caili(National Key Laboratory of Deep Oil and Gas,China University of Petroleum(East China),Qingdao 266580,Shandong,China;Shandong Key Laboratory of Oilfield Chemistry,Qingdao 266580,Shandong,China;Shale Gas Research Institute,PetroChina Southwest Oil&Gas Field Company,Chengdu 610051,Sichuan,China)

机构地区：[1]中国石油大学(华东)深层油气全国重点实验室,山东青岛266580 [2]山东省油田化学重点实验室,山东青岛266580 [3]中石油西南油气田分公司页岩气研究院,四川成都610051

出　　处：《化工进展》2024年第9期4845-4858,共14页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(52288101,52120105007,52222403);山东省泰山学者青年专家项目(tsqn202211079)。

摘　　要：深层/超深层油气资源是我国未来油气勘探开发和增储上产的重点突破领域。压裂是实现超深层油气高效开发的重要手段,但超深层压裂面临的苛刻条件对压裂液提出了新的挑战。现从增稠剂、交联剂和延迟交联技术三方面对超深层耐高温压裂液研究进展进行综述。回顾国内外常用稠化剂和交联剂对于提升压裂液耐温性能的发展历程,明确现有深层/超深层压裂液的耐温界限。目前在压裂液延迟交联的技术方法中依靠环境响应的延迟交联技术最具有应用潜力,但耐温压裂液仍然存在“用剂浓度高、分子结构复杂、井筒摩阻高”的问题。研发具有低伤害、高减阻、低成本的耐高温延迟交联压裂液将是超深层压裂液未来的发展方向,可为进一步完善我国深层/超深层油气高效开发压裂工作液技术提供借鉴。Ultra-deep oil and gas resources are the key breakthrough field for increasing reserves and production in future oil and gas exploration and development in China.Fracturing is an important way to complete the efficient development of ultra-deep oil and gas.However,ultra-deep fracturing faces harsh conditions,which poses new challenges to the fracturing working fluid.The research progress of ultra-deep high temperature resistant fracturing fluid was reviewed from three aspects:thickening agent,crosslinking agent and delayed crosslinking technology.The development history of thickening agents and cross-linking agents commonly used at home and abroad to improve the temperature resistance of fracturing fluids was summarized,and the temperature resistance limit of existing deep/ultra-deep fracturing fluids was clarified.The delayed crosslinking technology relying on environmental response had the most potential for application.At present,there were still problems with high concentrations of additives,complex molecular structures and high wellbore friction in temperature-resistant fracturing fluids.Developing high temperature-resistant delayed crosslinking fracturing fluids with low damage,high drag reduction and low cost would be the future development direction of ultra-deep fracturing fluids,which can provide a reference for further improving the efficient development of fracturing fluid technology for deep/ultra-deep oil and gas in China.

关 键 词：超深层 压裂液 耐高温 延迟交联 

分 类 号：TE357[石油与天然气工程—油气田开发工程]