钻井液与完井液2025，Vol.42Issue(4)：503-508,6.DOI:10.12358/j.issn.1001-5620.2025.04.009
一种强抑制低活度卤水基钻井液体系
A Highly Inhibitive Low Activity Brine-Based Drilling Fluid
摘要
Abstract
As a new type of drilling fluid,bring-based drilling fluid manifests its significance in replacing oil-based and conventional water-based drilling fluids.To deal with the serious borehole wall collapse and reservoir protection problems encountered in drilling the Permian system reservoir in Tuha oilfield,a chloride brine was chosen as the base fluid for drilling fluid development.By selecting high efficiency drilling fluid additives,a highly inhibitive low solids low activity brine-based drilling fluid was formulated.This drilling fluid has simple composition and strong inhibitive capacity.Laboratory researches show that this drilling fluid has good high temperature stability and contamination resistance,and results of corrosion test with steel plate and rubber satisfy the standard requirements.This drilling fluid was successfully used in the Qitan-1 block in Tuha oilfield,the average percent hole enlargement of the target zone sections was 3.44%,and no downhole troubles were encountered during drilling,demonstrating that the highly inhibitive low solids low activity brine-based drilling fluid can satisfy the requirements of drilling in the Permian basin.The application of the chloride brine-based drilling fluid is the first in China,and is worth further optimization and promotion.关键词
卤水基钻井液/低活度/封堵防塌/奇探1块/二叠系盆地Key words
Brine-based drilling fluid/Low activity/Plugging and anti-sloughing/Qitan-1 block/Permian basin分类
能源科技引用本文复制引用
王广财,刘万成,任运,王小龙,熊开俊,罗浩,王丽茸,肖华..一种强抑制低活度卤水基钻井液体系[J].钻井液与完井液,2025,42(4):503-508,6.基金项目
中国石油吐哈油田分公司科研项目"吐哈探区复杂深井及非常规油气藏优快钻井技术研究"(2024TH-GC01). （2024TH-GC01）
