介绍了采用控制爆破技术施工位于井底车场及主要运输大巷的信集闭峒室，条件复杂，岩性变化大，要求安全性高。
This paper introduces controlled blasting technology on signal chamber of pit-bottom and main haulage roadway, which are of complex condition, lithological character and highly security.
除此之外，考虑到在下入测井工具之前可能降低井眼有效深度的井底碎屑、井眼充填和其它条件，通常还要钻进一段额外井眼。
In addition, there is usually a small amount of extra hole drilled to allow for junk, hole fill-in and other conditions that may reduce the effective depth of the well prior to running logging tools.
本文详细讨论了模型的差分求解、边界条件的处理方法和井底井筒流体与储层流体耦合的计算。
It was discussed in details that the model by difference method, the treatment of the ambient condition and the calculation of well flow model being coupled with reservoir.
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