黑龙江科技大学学报2017，Vol.27Issue(5)：486-492,7.DOI:10.3969/j.issn.2095-7262.2017.05.009
莱阳凹陷下白垩统莱阳群水南组暗色泥页岩的地质特征
Dark mudstone and shale geological characteristics of lower cretaceous Laiyang Group Shuinan Formation in Laiyang Sag
摘要
Abstract
This paper introduces an investigation into the geological characteristics of dark mudstone and shale of large depositional thickness in lower cretaceous Laiyang Group Shuinan Formation in Laiyang Sag by observing and testing the organic matter type, organic matter abundance, organic matter maturity, petrologic characteristics and pores and fissures of outcrop section sample and drill-hole sample.The results show that organic matter type of dark mudstone and shale in Shuinan Formation which is dominated by type Ⅱ kerogen and is rich in organic carbon, chloroform asphalt "A", and potential hydrocarbon generation amoun (S1+S2), the higher organic matter maturity, is defined as middle maturation and has a stronger ability of hydrocarbon generation and expulsion;the minerals consisting mainly clay mineral, dolomite, quartz and feldspar have brittle mineral content of up to 82.3％;dark mudstone and shale has a large amount of developed pores and fractures providing more storage space to accumulate shale gas.The comprehensive analysis concludes that dark mudstone and shale of Shuinan Formation in Laiyang Sag is blessed with best geological conditions of shale gas.关键词
页岩气/莱阳凹陷/水南组/暗色泥页岩/地质特征Key words
shale gas/Laiyang Sag/Shuinan Formation/dark mudstone and shale/geological characteristics分类
天文与地球科学引用本文复制引用
邵玉宝..莱阳凹陷下白垩统莱阳群水南组暗色泥页岩的地质特征[J].黑龙江科技大学学报,2017,27(5):486-492,7.基金项目
山东省地勘基金项目(鲁勘字2013年7号) （鲁勘字2013年7号）
