CAJ | 학술논문

基于钻孔岩心观察、室内试验测试以及结合前人研究成果，探讨了淮南煤田石炭-二叠系泥页岩层系分布特点及其沉积环境演化。结果表明：太原组、山西组和下石盒子组、上石盒子组均发育了不同厚度的泥页岩层系，泥岩岩石类型包括粉砂质泥岩、暗色泥岩和高岭石泥岩。太原组发育浅海相的碳酸盐岩和碎屑组成的含煤沉积，部分沼泽、湖泊相发育了泥岩；山西组为海退系列的水下三角洲平原沉积，下部厚约10m的暗色泥岩段有机质含量相对较高，为研究区内主要赋页岩气层段，上部为分流河道沉积，泥岩发育不稳定；下石盒子组与上石盒子组河流作用增强，沉积环境更靠近陆地一侧，不利于有机质的聚集，沉积泥岩有机质含量相对较低。山西组和下石盒子组为本区富有机质泥岩的富集层段，更具生气潜力。
기우찬공암심관찰、실내시험측시이급결합전인연구성과，탐토료회남매전석탄-이첩계니혈암층계분포특점급기침적배경연화。결과표명：태원조、산서조화하석합자조、상석합자조균발육료불동후도적니혈암층계，니암암석류형포괄분사질니암、암색니암화고령석니암。태원조발육천해상적탄산염암화쇄설조성적함매침적，부분소택、호박상발육료니암；산서조위해퇴계렬적수하삼각주평원침적，하부후약10m적암색니암단유궤질함량상대교고，위연구구내주요부혈암기층단，상부위분류하도침적，니암발육불은정；하석합자조여상석합자조하류작용증강，침적배경경고근륙지일측，불리우유궤질적취집，침적니암유궤질함량상대교저。산서조화하석합자조위본구부유궤질니암적부집층단，경구생기잠력。
Based on borehole core observation, laboratory test and previous studied results, discussed Permo-Carboniferous argillite measures distribution features and Sedimentary environment evolution. The result has shown that in the Taiyuan, Shanxi, Xiashihezi and Shangshihezi formations have all developed argillite measures with different thicknesses; argillaceous rock types including silty mudstone, dark mudstone and kaolinitic mudstone. In Taiyuan Formation developed shallow sea facies carbonate rocks and clast formed coal-bearing deposits, part of swamp, lacustrine facies developed mudstone. Shanxi Formation is regressive series submerged delta plain deposits, lower part about 10m thick dark mudstone member has relatively high organic matter content, thus the main shale gas hosting sector in the study area;upper part is distributary channel deposits, unstably developed mudstone. Fluviation increased in Xiashihezi and Shangshihezi formations, sedimentary environment closer to land side, is adverse to accumulation of organic matters, thus relatively low organic matter content. Shanxi and Xiashihezi formations are organic matter enrichment sectors with more gas gener?ation potential.