摘要
针对准噶尔西缘重点探区钻井过程中存在的油气层严重伤害及井下复杂情况较多等问题,通过室内试验,优选出了适用于该地区的非渗透钻井液体系。在排208井三开井段的现场试验结果表明,该钻井液体系有效解决了渗漏造成的储层伤害、井眼严重失稳、起下钻频繁遇阻等问题,从而提高了机械钻速,缩短了钻井周期,为该区实现高效勘探开发奠定了基础。
The non-permeable drilling and well completion fluids were optimized based on laboratory experiments considering the key problems occurred in drilling wells in key exploratory area in West Dzungarian Basin, including formation damages and downhole accidents. Field application of the selected fluids in the third hole section of Well Pai-208 indicate that this drilling fluids effectively controlled formation damages caused by seepage loss, and eliminated pipe sticking caused by serious wellbore sloughing. Therefore, the penetration rate was increased and the drilling cycle was shortened, which lay solid foundations for developing this block efficiently.
出处
《石油钻探技术》
CAS
北大核心
2008年第4期41-44,共4页
Petroleum Drilling Techniques
关键词
非渗透钻井液
钻井液性能
防止地层损害
排208井
non-permeable drilling fluid
drilling fluid property
formation damage prevention
Well Pai-208
