钻井液与完井液2018，Vol.35Issue(2)：40-43,4.DOI:10.3969/j.issn.1001-5620.2018.02.006
安探4X井低固相超高温钻井液技术
Low Solids Ultra-high Temperature Drilling Fluid Technology for Well Antan-4X
摘要
Abstract
Well Antan-4X is a prospecting well for exploring the oil/gas reserves in the Yangshuiwu buried hill area in Huabei Oilfield. The depth of this well, 6455 m, has set a new record of well depth in Huabei Oilfield. The fourth interval of the well penetrated formations mainly with limestone and mudstone, and the down-hole temperatures are between 210-217 ℃, which poses rigorous requirement on the high temperature resistance of drilling fluid. Laboratory studies on the mud samples taken from well site have been conducted, and based on the studies 4 key mud additives have been selected to optimize the mud formulation, a low solids drilling fluid with temperature resistance up to 200-220 ℃. In field operations, the drilling fluid was maintained at its best state in accordance with bottom hole temperature, thereby to maximize the cost performance of the drilling fluid. During the entire drilling operations, the drilling fluid showed stable properties and good cuttings carrying performance, ensuring the safe drilling operations in the ultra-high temperature fourth interval.关键词
超高温钻井液/低固相钻井液/杨税务潜山构造/安探4X井Key words
Ultra-high temperature drilling fluid/Low solids drilling fluid/Yangshuiwu buried hill area/Well Antan-4X分类
能源科技引用本文复制引用
宋洵成,王鹏,张宇,王俊星,罗仁文,田惠,贾建超,王占强..安探4X井低固相超高温钻井液技术[J].钻井液与完井液,2018,35(2):40-43,4.基金项目
中国石油重大科技专项"华北油田持续有效稳产钻完井关键技术研究与应用"(2017E-1501). （2017E-1501）
