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

作　　者：宋洵成[1] 王鹏[1] 张宇 王俊星 罗仁文 田惠 贾建超 王占强 SONG Xuncheng;WANG Peng;ZHANG Yu;WANG Junxing;LUO Renwen;TIAN Hui;JIA Jianchao;WANG Zhanqiang(China University of Petroleum, Qingdao, Shandong 266580;Research Institute of Engineering Technology of CNPC Bohai Drilling Engineering Company Limited, Tianjin 300457;The Second Drilling Branch of CNPC Bohai Drilling Engineering Company Limited, Langfang, Hebei 06500;Development Department of Huabei Oilfeld, Renqiu, Hebei 062552;International Drilling Materials Supply Company （Bidding Center）, BHDC, Tianjin 300457)

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266580 [2]渤海钻探工程有限公司工程技术研究院,天津300457 [3]渤海钻探第二钻井工程分公司,河北廊坊065000 [4]华北油田开发部,河北任丘062552 [5]渤海钻探国际钻采物资供应分公司,天津300457

出　　处：《钻井液与完井液》2018年第2期40-43,共4页Drilling Fluid & Completion Fluid

基　　金：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)

摘　　要：安探4X井是中石油华北油田公司为了勘探杨税务潜山含油气性所部署的一口风险探井,完钻井深为6 455 m。该井四开以后地层岩性主要为灰岩、泥岩,井底最高温度在210~217℃之间,超高温对钻井液处理剂的抗温性能提出了极高的要求。室内在现场浆的基础上,通过优选的4种关键处理剂对体系进行优化,构建出抗温200℃和220℃的低固相钻井液配方。现场钻井液维护过程中,根据井下温度环境,按照阶梯序列维护补充钻井液体系,最大程度地提升钻井液的性价比,在整个钻进过程中钻井液性能稳定,体现了良好的悬浮携砂性能,保障了四开超高温井段的顺利钻进。Well Antan-4 X 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 

分 类 号：TE254.3[石油与天然气工程—油气井工程]