A.C1/C2=1,C1/C3=20,C1/C4=5 B.C1/C2=8,C1/C3=20,C1/C4=30 C.C1/C2=40;C1/C3=20,C1/C4=10 D.C1/C2=70,C1/C3=150,C1/C4=15
A.2~3m B.3~4m C.4~5m D.6~7m
A.按設(shè)計井深完鉆 B.循環(huán)觀察 C.提前完鉆 D.向上級主管部門匯報后確定