黄骅坳陷石炭—二叠系烃源岩评价

发布时间：2018-06-03 11:23

  本文选题：黄骅坳陷 + 烃源岩　； 参考：《东北石油大学》2017年硕士论文

【摘要】：我国大部分含油气盆地,地质构造条件好的含油气区勘探程度都很高,而且后备资源不足,深层上古生界的石炭-二叠系煤系地层的油气勘探开发在多个盆地已取得显著的成效,黄骅坳陷深层资源具有巨大的潜力,烃源岩是油气富集的物质基础。黄骅坳陷石炭-二叠系烃源岩主要包括暗色泥岩、碳质泥岩和煤,地层自下而上发育本溪组、太原组、山西组、下石盒子组、上石盒子组和石千峰组。山西组、太原组煤层和暗色泥岩沉积厚度大、有机质丰度高,是主力生烃层位;本溪组因地层厚度较小且分布局限,生烃贡献较小。此次研究通过全岩显微组分、干酪根镜检、有机碳测定、岩石热解实验、镜质体反射率等对岩心样品进行分析,并结合前人分析数据,选取评价标准对研究区烃源岩有机质丰度、类型、成熟度进行分析。综合分析暗色泥岩为中等-好的烃源岩,碳质泥岩是差的烃源岩,煤为差-非生油岩,有机质类型以Ⅱ2-Ⅲ型为主,有机质成熟度值多为0.7%~1.3%,演化阶段为成熟阶段。根据烃源岩分布、有机质丰度、类型、成熟度等综合评价有利区,孔西潜山、徐黑潜山、南皮凹陷和歧口凹陷是比较有利的生油气地区。本文采用热模拟产烃率法对油气资源进行评价,确定黄骅坳陷的资源量为2.1×10~8t~2.99×10~8t。
[Abstract]:Most oil and gas bearing basins in China have a high degree of exploration and lack of reserve resources. Oil and gas exploration and development of Carboniferous Permian coal series strata in the deep Paleozoic have achieved remarkable results in many basins. The deep resources of Huanghua depression have great potential and source rocks are the material basis of hydrocarbon enrichment. The source rocks of Carboniferous and Permian in Huanghua depression mainly include dark mudstone, carbonaceous mudstone and coal, and Benxi formation, Taiyuan formation, Shanxi formation, Lower Shihezi formation, Shangshihezi formation and Shiqianfeng formation are developed from bottom to top. Shanxi formation, Taiyuan formation coal seam and dark mudstone deposit thickness, high organic matter abundance, is the main hydrocarbon generation horizon, Benxi formation because of the formation thickness is small and distribution is limited, hydrocarbon generation contribution is relatively small. In this study, the core samples were analyzed by whole rock macerals, kerogen microscopy, organic carbon determination, rock pyrolysis experiments, vitrinite reflectance, etc. The abundance, type and maturity of organic matter of source rocks in the study area were analyzed by selecting evaluation criteria. Comprehensive analysis shows that dark mudstone is medium good source rock, carbonaceous mudstone is poor source rock, coal is poor non-oil source rock, organic matter type is mainly type 鈪，

本文编号：1972609