Geologic Conditions of Shale Oil and Gas Accumulation in the Southeast Uplift Songliao Basin (Upper Cretaceous, NE China)
Geologic Conditions of Shale Oil and Gas Accumulation in the Southeast Uplift Songliao Basin (Upper Cretaceous, NE China)
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松辽盆地东南隆起（上白垩统）页岩油气成藏地质条件
DOI：
10.1080/15567036.2013.791899
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发表时间：
2015-02
影响因子：
2.9
通讯作者：
Xu Y.
中科院分区：
文献类型：
--
作者：
Sun P.;Liu Z.;Zhen Z.;Bai Y.;Xu J.;Liu R.;Meng Q.;Xu Y.
松辽盆地晚白垩世青山口组发育厚暗色烃源岩。根据沉积特征和系统的化探测试，研究了页岩油气成藏的地质条件。松辽盆地中部凹陷深湖环境下发育厚的暗色泥岩序列(TOC>；2%)，厚度可达91m。有机质主要由I型和II1型干酪根组成。镜质组反射率(0.5-0.7%Ro)和岩石演化参数Tmax(425-445°C)指示烃源岩处于边缘成熟-成熟状态。泥岩中发育丰富的脆性矿物(平均51.1%)和4.1-14.0%的孔隙度。根据扫描电子显微镜和显微镜观察，微米级到纳米级的孔隙是页岩气和油的主要储集层。通过对这些地质条件的综合分析，认为青山口组下部具有形成页岩油气藏的潜力，东南隆起靠近盆地中心侧的深部是页岩油气聚集的最佳有利区带。
Thick dark source rocks were developed in the Qingshankou Formation (Late Cretaceous, Songliao Basin). According to sedimentary characteristics and systematical geochemical tests, the geological conditions of shale oil and gas accumulation are studied. The thick dark mudstone succession (TOC > 2%) is represented by deep lake environment and their thickness could reach 91 m in the center depression, Songliao Basin. Organic matter is mainly composed by type I and II1 kerogen. Vitrinite reflectance (0.5–0.7% Ro) and RockEval parameter Tmax (425–445°C) indicate that the source rock is marginal mature to mature. Abundant brittle minerals (average 51.1%) and the 4.1–14.0% porosity are developed in the mudstone. Based on the SEM and microscope observation, the micron level to nanometer level pores are the main reservoir for shale gas and oil. Through comprehensive analysis of these geological conditions, it is concluded that the lower part in the Qingshankou Formation has the potential to form shale oil and gas reservoirs, and the deep region of the Southeast Uplift near the basin center side is the best favorable zone of shale oil and gas accumulation.
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影响因子：
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作者：
Bustin, Amanda M. M.;Bustin, R. Marc
通讯作者：
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影响因子：
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作者：
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通讯作者：
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作者：
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