It is used to treat well accident and used to be on the way test in drilling and coring operation.
它适用于井下事故处理，也使用于钻井和取心的中途测试。
The quick latch jack can be widely used in the coring operation in the oil and gas drilling engineering.
本实用新型 可广泛用于石油、天然气钻井工程取岩心作业中。
It is used to treat well bottom accident and used to be on -the -way test in drilling and coring operation.
它适用于井下事故处理，也适用于钻井和取芯的中途测试。
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