近井污染带
contaminated zone near well
大斜度井钻井解卡剂
high angle drilling lubricant
反循环洗井钻井法
countercirculation-wash boring method
分支井钻井技术
branch drilling technology
深井钻井技术
deep well drilling technology
胜利油田黄河钻井钻前公司
Huanghe Drilling Engineering General Company of Shengli Oilfield