摘要
根据泌深1井钻遇地层和地温梯度,对井身结构、钻井液体系进行了优化设计。该井第四次开钻以抗高温和防塌为主,采用封堵-抑制-合理的钻井液密度支撑的协同防塌技术,采用超高温水基防塌钻井液体系。该井钻井施工顺利,有效防止和解决了井壁掉块和高温的问题,全井没有发生任何井下复杂情况和钻井事故,完井电测一次成功,完钻循环静止24 h后实测井底温度高达236℃。
Based on formation lithology and geothermal gradient, the well structure and drilling fluid system of Well Bishen-1 is optimized. In 4th hole section, high temperature and wellbore sloughing are main drilling challenges, therefore, an integrated wellbore stabilization measurement involving blocking off and inhibition and reasonable drilling fluid density are used along with high temperature water based drilling fluid. There are no accidents during drilling operations. Welt logging is completed without repeat with the bottom hole temperature up to 236℃, which is measured in 24 hours after well completion.
出处
《石油钻探技术》
CAS
北大核心
2010年第1期42-45,共4页
Petroleum Drilling Techniques
