钻井液与完井液2025，Vol.42Issue(6)：713-720,8.DOI:10.12358/j.issn.1001-5620.2025.06.002
一种强抑制植物油基钻井液体系
A Highly Inhibitive Vegetable Oil-Based Drilling Fluid
摘要
Abstract
This study aims at finding a more environmentally friendly and efficient oil-based drilling fluid to reduce drilling costs,to minimize the negative effects of the drilling fluid on the environment,to enhance the safety and quality of drilling operation,and to provide a new green drilling fluid solution.It was well known that vegetable oil-based drilling fluids formulated with base fluids such as peanut oil,soybean oil and castor oil have low ecotoxicity,good lubricity and high inhibitive capacity in stabilizing clay formations,and can be used to replace diesel oil-based drilling fluid.In laboratory experiments a vegetable oil-based drilling fluid was formulated with modified cottonseed oil as the base fluid and other oil-based drilling fluid additives.Laboratory evaluation results showed that the vegetable oil-based drilling fluid has strong capacity in inhibiting clay hydration and swelling,good high temperature stability,strong salt and bentonite contamination resistance,as well as excellent reservoir protection performance.Two well-times of successful use of this drilling fluid in Tuha oilfield showed that the drilling fluid performed very well:it effectively stabilized the borehole wall against collapse,ensuring the optimal and fast drilling of the wells and the safety of the drilling operation.Oil-on-cuttings was tested for its toxicity and the results conformed to the relevant standards.The vegetable oil-based drilling fluid has properties equivalent to those of a diesel oil-based drilling fluid and can be used to replace traditional oil-based drilling fluids in the future.关键词
吐哈油田/植物油基/改性棉籽油/钻井液/环境保护/井壁稳定Key words
Tuha oilfield/Vegetable oil-based/Modified cottonseed oil/Drilling fluid/Environment protection/Borehole wall stabilization分类
能源科技引用本文复制引用
肖华,王广财,张云达,刘万成,任运,万事兴,王小龙..一种强抑制植物油基钻井液体系[J].钻井液与完井液,2025,42(6):713-720,8.基金项目
中国石油吐哈油田分公司科研项目"重点勘探开发区域钻井提速提效关键技术研究及应用"(2023E-03-01). （2023E-03-01）
