GAS FLOW AROUND A BOREHOLE IN A COAL BED AND ITS APPROXIMATE EXPRESSIONS - 1. THE CASE OF A BOREHOLE WITHIN A BOUNDED CIRCULAR AREA.

HIDEFUMI OMUTA, RYUICHI ITOI, KEN GOTOH

研究成果: Contribution to journalArticle査読

抄録

THIS PAPER PRESENTS AN EASY METHOD FOR CALCULATING BOTH THEAPPROXIMATE DISTRIBUTION OF GAS PRESSURE AND THE GAS FLOW RATE THROUGH A BOREHOLE WITH A BOUNDED CIRCULAR AREA UNDER CONSIDERATION OF ABSORBED GAS. IT WAS FOUND THAT THE GAS DRAINAGE PERIOD IS LONGER IF ABSORBED GAS WAS TAKEN INTO ACCOUNT AND A LARGER BOREHOLE CANNOT SHORTEN THE PERIOD SO MUCH. THESHORTENING OF BOREHOLES INTERVAL IS MORE EFFECTIVE FOR THE PURPOSE. IN JAPANESE WITH ENGLISH ABSTRACT.

本文言語英語
ページ(範囲)21-28
ページ数8
ジャーナルNIPPON KOGYO KAISHI
V 98
N 1127
DOI
出版ステータス出版済み - 1982

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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