黃驊坳陷石炭—二疊系烴源巖評價(jià)
發(fā)布時(shí)間:2018-06-03 11:23
本文選題:黃驊坳陷 + 烴源巖; 參考:《東北石油大學(xué)》2017年碩士論文
【摘要】:我國大部分含油氣盆地,地質(zhì)構(gòu)造條件好的含油氣區(qū)勘探程度都很高,而且后備資源不足,深層上古生界的石炭-二疊系煤系地層的油氣勘探開發(fā)在多個(gè)盆地已取得顯著的成效,黃驊坳陷深層資源具有巨大的潛力,烴源巖是油氣富集的物質(zhì)基礎(chǔ)。黃驊坳陷石炭-二疊系烴源巖主要包括暗色泥巖、碳質(zhì)泥巖和煤,地層自下而上發(fā)育本溪組、太原組、山西組、下石盒子組、上石盒子組和石千峰組。山西組、太原組煤層和暗色泥巖沉積厚度大、有機(jī)質(zhì)豐度高,是主力生烴層位;本溪組因地層厚度較小且分布局限,生烴貢獻(xiàn)較小。此次研究通過全巖顯微組分、干酪根鏡檢、有機(jī)碳測定、巖石熱解實(shí)驗(yàn)、鏡質(zhì)體反射率等對巖心樣品進(jìn)行分析,并結(jié)合前人分析數(shù)據(jù),選取評價(jià)標(biāo)準(zhǔn)對研究區(qū)烴源巖有機(jī)質(zhì)豐度、類型、成熟度進(jìn)行分析。綜合分析暗色泥巖為中等-好的烴源巖,碳質(zhì)泥巖是差的烴源巖,煤為差-非生油巖,有機(jī)質(zhì)類型以Ⅱ2-Ⅲ型為主,有機(jī)質(zhì)成熟度值多為0.7%~1.3%,演化階段為成熟階段。根據(jù)烴源巖分布、有機(jī)質(zhì)豐度、類型、成熟度等綜合評價(jià)有利區(qū),孔西潛山、徐黑潛山、南皮凹陷和歧口凹陷是比較有利的生油氣地區(qū)。本文采用熱模擬產(chǎn)烴率法對油氣資源進(jìn)行評價(jià),確定黃驊坳陷的資源量為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,
本文編號:1972609
本文鏈接:http://sikaile.net/kejilunwen/shiyounenyuanlunwen/1972609.html
最近更新
教材專著