小鼠洞不正，不能用，请用大鼠洞接单根！
本文简要介绍了拨断岩心接单根方法在四川硬地层长筒取心中的试验和推广效果。
The test and popularization results of the method of putting in stalk through pulling apart core by Using the long core barrel in Sichuan hard rocks are simply presented in this article.
在煤层气钻井中，煤岩坍塌造成接单根困难、起下钻遇阻遇卡、蹩泵等事故和井下复杂。
In coal gas drilling, coal collapse led to drilling hard trip and other accidents.
除快速接单根外，还可用在打捞作业，找寻方向或需要慢转的钻井工具上，以及钻大小鼠洞用。
In addition to the fleetness connects single root, can also use at salvage the homework, search direction or demands the slow the artesian well tool that turn last, and drill the size rat hole use.
以气体钻井过程中气体的稳态流动和在接单根过程中的瞬态流动为主要研究对象，运用有限差分方法求解。
Gas drilling in the course of the steady flow of gas and the next single course of the transient flow as the main study, the use of finite difference method to solve.
现场试验表明，钻井阀开关灵活，密封可靠，提高了气体钻井时接单根的效率和作业的安全性，测斜时不碰、挂测斜仪。
The field test indicates that characterized by flexible switching and reliable sealing, the new drilling valve can improve the efficiency of connecting individual pipe whi…
现场试验表明，钻井阀开关灵活，密封可靠，提高了气体钻井时接单根的效率和作业的安全性，测斜时不碰、挂测斜仪。
The field test indicates that characterized by flexible switching and reliable sealing, the new drilling valve can improve the efficiency of connecting individual pipe whi…
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