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。
Diamond core bit is preferred for coring operation in terms of the special requirements of scientific drilling.
根据科学钻探对岩心的特殊要求，认为金刚石取心钻头是科学深钻取心钻进较理想的选择。
The technique of diamond wire-line taking -coring drill has been applied in China for more than 30 years. The drill process and operation rules have been formed completely.
金刚石绳索取心钻进技术在我国已有30多年的应用历史，已经形成了一套较完整的钻进工艺和操作规程。
Drilling displacement interference is a typical interference in the application of home-made rotary sidewall coring tool which influences engineers normal operation and coring result.
钻进位移干扰是国产旋转式井壁取心仪应用中的一类典型干扰，直接影响着操作工程师的正常操作和取心结果。
When coring barrel gets stuck downhole, it is very easy to back off safety joint to trip out inner barrel and cores, and only left outer barrel for fishing operation.
当岩心筒在井下被卡住时，很容易地从安全接头螺纹处倒开，起出内筒和岩心，只留下外筒进行打捞。
When coring barrel gets stuck downhole, it is very easy to back off safety joint to trip out inner barrel and cores, and only left outer barrel for fishing operation.
当岩心筒在井下被卡住时，很容易地从安全接头螺纹处倒开，起出内筒和岩心，只留下外筒进行打捞。
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