A.淡水B.中等非導(dǎo)電鉆井液C.油基鉆井液或空氣D.以上均可
A.標(biāo)準(zhǔn)模式,增強(qiáng)模式B.增強(qiáng)模式,標(biāo)準(zhǔn)模式C.標(biāo)準(zhǔn)模式,標(biāo)準(zhǔn)模式D.增強(qiáng)模式,增強(qiáng)模式
A.導(dǎo)電性,0.15~3Ω·mB.不導(dǎo)電,0.15~3Ω·mC.導(dǎo)電性,0.015~3Ω·mD.不導(dǎo)電,0.015~3Ω·m