题目内容
(请给出正确答案)
[单选题]
某井井筒容积120m3,钻铤替排量0.5m3,钻杆替排量9.216m3,地面管汇内容积0.40m3,用压井排量为15L/s进行“司钻法”压井,计算压井总时间()min
A.236
B.246
C.256
D.276
答案
B、246
如果结果不匹配,请 联系老师 获取答案
A.236
B.246
C.256
D.276
B、246
A.8
B.16
C.28
D.36
A.1834.20
B.1841.20
C.1884.76
D.1255.80
A.0.5
B.1
C.1.5
D.2
A.121.69
B.121.9
C.121
D.120
A.12
B.14
C.16
D.18
A.10:50
B.10:47
C.10:45
D.10:43
A.0.493
B.0.5
C.0.507
D.0