摘要
陕北油石二开井段遇阻的原因为泥岩的水化膨胀和孔隙性砂岩的泥饼沉积。对策主要有物理方法(如短程起下钻、加大排量等) 、化学方法(加入强抑制剂FA367、加入GPS,提高泥饼质量) 等。
The drilling resistance of the Erkaijing well in oil field of north Shanxi is caused by hydration expansion of mud stone and mud cake deposition of porous sandstone. The countermeasures to it are physical treatment (short-range running and increasing output volume of debris) and chemical treatment ( adding inhibitor of FA367 and GPS).
出处
《地质与勘探》
CAS
CSCD
北大核心
1999年第4期62-63,共2页
Geology and Exploration
关键词
油田
二开井段
钻井
泥饼
泥岩水化
resistance, hydration of mud stone, ores and rocks, mud cake, Erkaijing well, north Shanxi