渤海大位移井钻井液性能技术优化研究及应用  

Optimization and application of drilling fluid technology for extended reach wells in Bohai

作　　者：董平华 张启龙 王晓鹏[1] 刘鹏 王桂萍 DONG Ping-hua;ZHANG Qi-long;WANG Xiao-peng;LIU Peng;WANG Gui-ping(Tianjin Branch of CNOOC Ltd.,State Key Laboratory of Offshore Oil Exploitation,Tianjin 300459,China;China University of Petroleum,State Key Laboratory of Petroleum Resources and Prospecting,Beijing 102249,China)

机构地区：[1]中海石油(中国)有限公司天津分公司海洋石油高效开发国家重点实验室,天津300459 [2]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249

出　　处：《化学工程师》2023年第6期87-91,共5页Chemical Engineer

基　　金：国家科技重大专项(No.2016ZX05058):渤海油田高效开发示范工程;国家自然科学基金项目(No.51490652):多重耦合下的页岩油气安全优质钻井理论。

摘　　要：本文针对渤海大位移井3大难点问题在现有钻井液的基础上对钻井液性能进行了优化,通过高效润滑剂的开发研究降低了摩阻,利用可视化携砂装置验证了大斜度井钻井液“低黏高切”的携岩方案,并进行了流变性能的优化,采用“活度抑制”的方案,合理控制钻井液体系抑制性。通过以上方法,提高了井壁稳定性。优化后的钻井液性能能更好的适用于大位移井的开发,保证作业安全。The performance of drilling fluid was optimized based on the existing drilling fluid of extended reach wells in Bohai for three difficult problems in this paper.The friction was reduced through the development and research of efficient lubricants.The rock carrying scheme of"low viscosity and high shear"of drilling fluid in highly deviated wells was verified by using the visual sand carrying device.The rheological property was optimized.The“activity inhibition”scheme was adopted to reasonably control the inhibition of drilling fluid system.Through the above methods,the wellbore stability was improved.The optimized drilling fluid performance could be better applied to the development of extended reach wells and ensure operation safety.

关 键 词：渤海油田 大位移井 钻井液 润滑剂 井壁稳定 

分 类 号：TE985[石油与天然气工程—石油机械设备]