贵州六盘水地区晚二叠世龙潭组煤系地层中瓦斯富集规律的研究

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1、墨型查垄查丝堕些=壁竺垄翌型堡墨些星!些塑!堡墨塑堡竺竺塑betteradsorptioncapacity．Therefore，largenumbersofmethanecanbeadsorbedinthecoalbed．2．Thefloorandbinchinglithologyofthecoalseaminthestudyingareaismainlymudstoneandshale，featurecharacteristicsoflithologyarerelativelyfavorabletothepreservationofmethane．3．Therearemanyin

2、tervalsandstonebedsincoalbedseriesinthestudyingarea，thesandstonebedsarethefavorablespacethatthemethaneisstored，whichislikelytofindasuitableindustrialexploitationofcoalgasresources．4．Thefaultofmanyblocksinthestudyingareaisrelativelydevelopment．Therefore，thetectonicstressisfairlystrong,andcoalmi

3、cro-fracturesystemisdevelopment，thestructuresprovideagoodtransportpathforadsorbedmethaneincoalbed，andleadstoformofhi【ghmethanecoalbed．5．Inmostofthestudyingareas，highgasareasarecontrolledbythicknessofcoalbedanddevelopmentaldegreeofpressandcuttingfracturestructure．Then，thehighgasa[eainthenorthem

4、Fa’ermaybecausedbyhydrogeologicalandSynclineofGemudi．ThelowgasareaintheeastFa’ermaybecausedbyhydrogeologicalfactorandfractureofcoal(10werfracture)．6．Onthebasisofcomprebensivelyanalysisoncoalmetamorphismdegree，vitfinitereflectance，andthelithologyofthefloorandbinchingofcoalseam，tollcoalbedthickn

5、essandcoalrescrves，tectonics，hydrogeologyandminemethanedatainthestudyingarea，authorputforwardsthatXiangShuitown-Duanjiangtown·PuGutown·PuAntownisonehi曲closureareaofmethane．EastofFaErtown—westofBiDetown—ShangGatown·ShuiTangtownisouehii曲closureareaofmethane，HuaLetown·eastofShangGatownisonehighcl

6、osureareaofmethane．Thethreemethaneenrichmentareasarethebestprospectsofmethanemining，alsoisthekeyareasthatshouldstrengthenpreventionandcontrolofmethaneaccidentincoalminingcoarse．Keywords：Highgasarea；Coalmetamorphismdegree；Thelithologyoffloorandbinchingofcoalbed；Thicknessandreservesofcoalseam；De

7、velopmentaldegreeoffault；Thecontentofgas(methane)；Shuicheng-panxian·LuzhiRegion；GuizhouProvince．蛊州人学颂I．倒}究生毕业论义4贵州六盘水地区晚_二叠I!上龙潭纽蠛系地崖中瓦斯宙集舰律的研究前言煤层气减这一概念的提出(钱凯等，1996)到现在，煤层气的开发和利用成为了地质工作者研究的热门课题。当前，能源是制约社会发展的重要因素之一，世界各国都非常重视其能源发展。我国能源问题