鄂尔多斯盆地大牛地气田水平井A点前钻井液工艺技术

Drilling Fluid Technology for Horizontal Well Daniudi Gas Field of Ordos Basin

摘要:

针对鄂尔多斯盆地大牛地气田水平井A点前钻井施工过程中易发生井壁失稳、煤层坍塌等复杂情况的现状，选用“减少储层损害、减少环境污染”的“双保”（易降解，有利于环境保护；易酸化解堵，有利于保护油气层）天然高分子钻井液体系及分段采取合理的维护处理措施，取得了良好效果。

Abstract:

According to the complex geological conditions in drilling construction in Daniudi gas field of Ordos basin, control on formation damage and environment pollution was carried out for borehole instability and coal seam collapse by natural polymer drilling fluid system and sectional reasonable maintain treatment measures.