The ultra-short radius radial system (URRS) is a new highly efficient technology of oil recovery.

径向井是一种新型高效的原油开采技术。

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According to the detailed introduction to the basic principle and the mining method of URRS, USSR, as a new technical measure, is imported to mine gas so as to improve extracting quantity.

本文通过对超短半径径向钻井系统的基本原理和施工方法的详细介绍，试图把超短半径径向钻井系统这项先进技术作为一个新的技术手段引入煤层气开采中来，以提高煤层气的采出率。

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