- 1、additives,chemical,todrillingmuds2、Earlyemulsionmudsuseddieselorcrudeoildispersedintoalkalinewater-basemuds.3、Alsoindevelopmentarenewdrillingmudsthatcoolthedrillbitduringoperation.4、Theyusecattlestostepthefieldsintomuds,andthentransplantricesee...
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