钻井液与完井液2018,Vol.35Issue(2):1-16,16.DOI:10.3969/j.issn.1001-5620.2018.02.001
暂堵型保护油气层钻井液技术研究进展与发展趋势
Progress Made and Trend of Development in Studying on Temporarily Type Plugging Reservoir Protection Drilling Fluids
摘要
Abstract
Formation damage of varying degree during oil and gas exploration and development generally results in reduced production rate or even kill a reservoir. Drilling fluid, as the first foreign fluid comes into contact with reservoir always causes greater formation damage. To mitigate or avoid formation damage caused by drilling fluid and enhance production rate of a single well, plenty of studies have been conducted by scholars at home and abroad for almost half a century. Three generations of drilling fluid technologies capable of protecting reservoir from being damaged have been established, they are "shielding and temporary plugging", "fine temporary plugging" and "temporary plugging with physio-chemical film". These technologies have greatly economically improved the protection done to reservoirs. The progresses made in reservoir protection, although great, still do not satisfy the pursuit of petroleum engineers of"ultra-low" formation damage, especially with great efforts made in developing nonconventional complex, ultra-deep and ultra-deep water reservoirs, the reservoir protection technologies previously prevailing are becoming unsatisfactory. To better protect reservoirs from being damaged, bionics has been introduced in the reservoir protection drilling fluid theory. The wide application of this new theory in large oilfields helps reach the goal of "ultra-low" formation damage, symbolizing the establishment of the fourthgeneration of reservoir protection drilling fluid technology. Theoretical basis, implementation program, laboratory evaluation and field application and advantages and disadvantages of the four generations of reservoir protection technologies are detailed in this paper, and the trend of development of reservoir protection drilling fluid technology is expounded in an effort to be of guiding significance to field technologists and scientific researchers in their work.关键词
钻井完井液/油气层保护/屏蔽暂堵/超双疏/生物膜/综述Key words
Drill-in fluid/Reservoir protection/Shielding and temporarily plugging/Superamphiphobicity/Biofilm/Summarize分类
能源科技引用本文复制引用
蒋官澄,毛蕴才,周宝义,宋然然..暂堵型保护油气层钻井液技术研究进展与发展趋势[J].钻井液与完井液,2018,35(2):1-16,16.基金项目
国家"十三五"重大专项"复杂结构井、丛式井设计与控制新技术"(2017ZX05009-003) (2017ZX05009-003)
国家自然科学基金面上项目"钻探天然气水合物中井壁稳定性及钻井液低温流变性的控制方法研究"(51474231) (51474231)
国家自然科学创新研究群体"复杂油气井钻井与完井基础研究 "(51521063). (51521063)