A .2min
B .1min
C .10s
D .20s
[单选题]钻井的初切力事故钻井液静止()后所测得的切力。A .10sB .3minC .5minD .10mi
[单选题]钻井液的终切力是钻井液静止()后所测得的切力。A .10sB .3minC .5minD .10min
[单选题]钻井液的终切力是钻井液静止()分钟后所测得的切力。A .1B .3C .5D .10
[单选题]钻井液搅拌后静置10min测得的静切力是()。A .初切力B .动切力C .触变性D .终切力
[单选题]钻井液静止()min的切力称为初切力。A .1B .5C .10D .30
[单选题]钻井液的初切力是指钻井液静止()时所测的切力。A .7.5minB .2minC .1minD .10min
[单选题]钻井液的终切力是指钻井液静止()时所测的切力。A .7.5minB .1minC .10sD .10min
[判断题] 钻井液静止1分钟后所测之切力称为初切力,用θ1表示。A . 正确B . 错误
[单选题]钻井液的静切力通常称为钻井液的()。A . 切力B . 极限静切力C . 初切力D . lmin切力
[单选题]钻井液静止时的切力随时间()。A .延长而减小B .延长而增大C .缩短而增大D .不变