西南石油大学学报（自然科学版）2017，Vol.39Issue(1)：148-154,7.DOI:10.11885/j.issn.1674-5086.2015.08.04.03
冀东油田大斜度大位移井井眼清洁技术
Well Cleaning Technology for Highly Deviated and Extended Reach Wells in Jidong Oilfield
摘要
Abstract
With progress in exploration and development of the Jidong oilfield,the number of highly deviated and extended reach wells is increasing year-after-year,thereby leading to the problem of well cleaning.In accordance with the characteristics of highly deviated and extended reach wells,we analyzed the causes of cutting bed and cutting transport laws,and optimized hydraulic parameters based on the hydraulic calculation mode.We simulated flow characteristics of the fluid around EHCDP by means of computational fluid dynamics(CFD),and evaluated drilling fluid materials to maintain drilling fluid properties.Taking real-time well cleaning monitoring and high efficiency drilling fluid materials into consideration,we improved the level of well cleaning from design to drilling.In addition,we formed a set of technical measures for improving flow condition of wellbores of highly deviated wells,which provides technical support for safe drilling.Application of improved technical measures to highly deviated wells shows that problems,such as bit freezing,caused by inadequate hole cleaning rarely occur during construction.关键词
冀东油田/大斜度大位移井/井眼清洁/岩屑床/配套工艺Key words
Jidong Oilfield/highly deviated and extended reach well/hole cleaning/cutting bed/matching technical measures分类
能源科技引用本文复制引用
徐小峰,孙宁,孟英峰,宋巍,魏纳..冀东油田大斜度大位移井井眼清洁技术[J].西南石油大学学报（自然科学版）,2017,39(1):148-154,7.基金项目
国家科技重大专项(2011ZX05050). （2011ZX05050）
