摘要
通过这几年的研究和应用,钻井液性能不断得到优化,抗污染能力得到提高,大斜度煤层井段钻井液密度由原来的1.30 g/cm3以上降低到目前的1.20 g/cm3,固相含量降低,有利于钻井液性能调整,煤层段及斜井段井壁稳定,起下钻、电测及下套管等施工顺利,机械钻速明显提高,钻井液成本降低。
Through years of research and application, properties of drilling fluid system has been improved and the contaminationresistance ability has been enhanced. Fluid density used in highly deviated coal bed wells has decreased from 1.30g/era3 to 1.20g/cm3,and the decreasing of solid phase content makes it beneficial to drilling fluid performance change. The horehole in coal bed anddeviated well wall is stable, trip and electrical logging and casing work go smoothly. As a result, the ROP is obvious improved and thecost of drilling fluid has been reduced.
出处
《辽宁化工》
CAS
2014年第11期1438-1441,1445,共5页
Liaoning Chemical Industry
基金
榆林学院高层次人才科研启动项目(NO:13GK32)
石油工程钻井方向实践教学模式探索(NGY2014-3)
榆林学院大学生课外科技项目资助
关键词
煤层防塌
抗污染能力
电测顺利
机械钻速提高
coal sloughing
contamination resistance
successful electrical logging
improving ROP
