鄂尔多斯南缘大位移气定向井钻井液技术  

Drilling fluid technology for large displacement gas directional wells in the southern margin of Ordos

作　　者：刘朝峰 Liu Chaofeng(Changqing Drilling Engineering Co.,Ltd.Changqing Drilling Corporation,Xi’an 721000,China)

机构地区：[1]川庆钻探工程有限公司长庆钻井总公司,陕西西安721000

出　　处：《云南化工》2018年第7期136-137,共2页Yunnan Chemical Technology

摘　　要：大位移定向井是天然气开发的重要井型之一,其技术难点涉及到井眼净化、井壁稳定、降摩减阻和防漏堵漏等方面。钻井液技术如何保障安全快速钻井,是提高大位移定向井钻井效益的关键。在原有钻井液体系的基础上,结合实验和现场,优化低粘切、低固相的钻井液配方;合理转化时机,强化抑制防塌,减少复杂;逐步解决了大位移定向井施工中的电测成功率低,井下复杂率高,钻速慢等难题。One of the important well types for natural gas development in large displacement directional wells,its technical difficulties involve wellbore purification,wellbore stability,friction reduction and leakage prevention,and how drilling fluid technology can ensure safe and rapid drilling.The key to the efficiency of large displacement directional well drilling.Based on the original drilling fluid system,combined with the experiment and the site,optimize the lowviscosity and low-solid phase drilling fluid formula;rationally transform the timing,strengthen the suppression of collapse prevention,reduce complexity;gradually solve the problem of large displacement directional well construction The measurement success rate is low,the complexity of the downhole is high,and the drilling speed is slow.

关 键 词：大位移 气定向井 钻井液优化 

分 类 号：TE254[石油与天然气工程—油气井工程]