钻井液密度太高对钻井施工有什么影响?
参考答案:
1使钻速减慢
2容易引起压差卡钻
3有时会把地层压漏
4上提或下放钻具摩擦阻力增大
5流动性差,导致泵压增高。
I _______ you for sixteen years and I still don't know what goes on in your mind. [ ]
A. have married
B. have got married to
C. have married with
D. have been married to
在褶皱的各个横剖面上,同一褶皱面的各最大弯曲点的连线叫做()。
A、枢纽
B、褶轴
C、转折端线
D、槽线