摘要
通过系统论述裂缝性地层钻井液漏失和堵漏机理,对不同类型堵漏材料及其在裂缝性恶性漏失地层中的适用性及作用机理进行了分类归纳,同时基于所用堵漏材料分析了不同类型堵漏工艺的优缺点及应用效果,明确了目前国内外恶性漏失地层堵漏技术存在的关键问题,进而提出未来恶性井漏堵漏技术发展方向。未来应综合地质、工程、材料等学科,实现恶性井漏堵漏技术的一体化、智能化与系统化,重点应开展5个方面的研究:①注重钻井液漏失和堵漏机理研究,为科学选择堵漏材料及配方、堵漏方法和工艺提供依据;②注重自适应堵漏材料研发,提高堵漏材料与裂缝漏失通道级配关系;③注重三维裂缝空间强驻留强充填堵漏材料研发,增强堵漏材料在漏失通道中的驻留和充填程度,改善封堵效果;④注重抗高温堵漏材料研发,保证深层高温漏失地层的长期封堵效果;⑤注重发展数据化和智能化堵漏技术,促进堵漏技术向数据化和智能化方向发展。
By reviewing the mechanisms of drilling fluid lost circulation and its control in fractured formations,the applicability and working mechanisms of different kinds of lost circulation materials in plugging fractured formations have been summarized.Meanwhile,based on the types of lost circulation materials,the advantages,disadvantages,and application effects of corresponding plugging technologies have been analyzed to sort out the key problems existing in the current lost circulation control technologies.On this basis,the development direction of plugging technology for severe loss have been pointed out.It is suggested that that the lost circulation control technology should combine different disciplines such as geology,engineering and materials to realize integration,intelligence and systematization in the future.Five research aspects should be focused on:(1)the study on mechanisms of drilling fluid lost circulation and its control to provide basis for scientific selection of lost circulation material formulas,control methods and processes;(2)the research and development of self-adaptive lost circulation materials to improve the matching relationship between lost control materials and fracture scales;(3)the research and development of lost circulation materials with strong retention and strong filling in three-dimensional fracture space,to enhance the retention and filling capacities of materials in fractures and improve the lost circulation control effect;(4)the research and development of lost circulation materials with high temperature tolerance,to ensure the long-term plugging effect of deep high-temperature formations;(5)the study on digital and intelligent lost circulation control technology,to promote the development of lost circulation control technology to digital and intelligent direction.
作者
孙金声
白英睿
程荣超
吕开河
刘凡
冯杰
雷少飞
张洁
郝惠军
SUN Jinsheng;BAI Yingrui;CHENG Rongchao;LYU Kaihe;LIU Fan;FENG Jie;LEI Shaofei;ZHANG Jie;HAO Huijun(School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266580,China;CNPC Engineering Technology R&D Company Limited,Beijing 102206,China)
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2021年第3期630-638,共9页
Petroleum Exploration and Development
基金
国家自然科学基金重大项目课题“井筒工作液与天然气水合物储层作用机理和调控方法”(51991361)
国家自然科学基金面上项目“深层裂缝性地层剪切响应型凝胶体系构筑与空间自适应堵漏机理”(52074327)
国家自然科学基金-石油化工联合基金(A类)重点基金项目“超深井安全高效井筒工作液构建及调控方法基础研究”(U1762212)
中国石油天然气集团有限公司重大工程技术现场试验项目“恶性井漏防治技术与高性能水基钻井液现场试验”(2020F-45)。
关键词
恶性井漏
堵漏机理
堵漏材料
堵漏工艺
钻井液漏失
堵漏技术进展
severe lost circulation
lost circulation control mechanism
lost circulation materials
lost circulation control technology
drilling fluid lost circulation
plugging technologies progress
