在深井、超深井钻井过程中，套管磨损有可能导致套管封隔失效和油气井的早期报废。
In deep drilling process, casing wear is the problem that cannot be ignored.
祁东煤矿风井在建井过程中，发生钻井井壁突水事故，井筒被淹。
The mine flooding happed during construction of the air shaft in Qidong Coal mine.
即中途测试，是指油井在钻井过程中，对有。
DST (drill Stem test), a fast test for show of oil and gas while drilling.
即中途测试，是指油井在钻井过程中，对有。
DST (drill Stem test), a fast test for show of oil and gas while drilling.
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