新疆大倾角煤层的煤层气开采方式探讨

Analyse of New Extraction Measure of Coal Bed Methane in Coal Seams of Big Obliquity in Xinjiang

作者针对新疆大倾角、低渗透率煤层的特点,从理论角度探讨了一种从丛式井变形而来的扇状丛式井进行煤层气开采的方式,以达到高效、经济的目的。并提出需要攻克的一些煤层气开发技术问题。由于新疆还没有真正意义的煤层气开发,这种开采方式有待于在实践中应用和完善。

Focusing on the characristic of big obliquity and low permeability of coal seams in Xinjiang, for the purpose of achieving high efficiency and sound commercial result,a new measure of coal bed methane extraction which extracts CBM from wells of fanlike plexus style which is evolved from extraction wells of cluster style is analysed theoretically, and some issues concerning technology of CBM development which must be solved are also mentioned in this paper,because CBM development in Xinjiang is now still in the evaluation stage and CBM extraction hasn＇ t been implemented yet, this new measure of CBM extraction is inevitable to be tested and improved in pragmatic application in the future, xinjiang