CAJ | 학술논문

通过对凤冈二区展开的系列页岩气野外地质调查发现，区内暗色泥页岩地层共三套，分别位于奥陶系五峰组、志留系龙马溪组及寒武系牛蹄塘组。五峰组厚度较薄，仅1～8m ；龙马溪组较厚，出露较多，但暗色泥页岩层较薄，主要位于龙马溪组底部，厚3～35 m ；牛蹄塘组仅在具合村出露，出露总厚约89.47 m ，暗色页岩厚度约60 m。对区内出露较好的龙马溪组及牛蹄塘组进行了系统采样，做了有机碳含量、有机质成熟度等105项实验分析，对目的层页岩气有机碳含量、有机质成熟度、埋藏深度等地质条件有了较全面的掌握，为下一步有利区的圈定及后续工作的开展提供了有利依据。
통과대봉강이구전개적계렬혈암기야외지질조사발현，구내암색니혈암지층공삼투，분별위우오도계오봉조、지류계룡마계조급한무계우제당조。오봉조후도교박，부1～8m ；룡마계조교후，출로교다，단암색니혈암층교박，주요위우룡마계조저부，후3～35 m ；우제당조부재구합촌출로，출로총후약89.47 m ，암색혈암후도약60 m。대구내출로교호적룡마계조급우제당조진행료계통채양，주료유궤탄함량、유궤질성숙도등105항실험분석，대목적층혈암기유궤탄함량、유궤질성숙도、매장심도등지질조건유료교전면적장악，위하일보유리구적권정급후속공작적개전제공료유리의거。
The series of geological survey on shale gas in the second block of Fenggang show that there are three dark mud shale formations lying respectively in Wufeng formation of Ordovician ,Longmaxi formation of Silurian and Niutitang formation of Cambrian .Wufeng formation is about 1 ~ 8 m thick .Longmaxi formation is wide spread and large thickness with a small thickness of dark mudstone and shale of about 3~35 m located at the bottom of Longmaxi Formation .Niutitang formation is only found at Juhe village with a thickness of 89 .47 m .By a systematic sampling of Longmaxi formation and Niutitang formation ,the authors made an experimental analy-sis of 105 items including organic carbon content ,maturity of organic matter ,which led to a fully mastery of the organic carbon content ,maturity of organic matter and buried depth of shale gas in target zone and provided the foundation for delineating favorable area and the follow -up work .