Geochemistry of coal-measure source rocks and natural gases in deep formations in Songliao Basin, NE China

2010 ◽  
Vol 84 (3-4) ◽  
pp. 276-285 ◽  
Author(s):  
Jingkui Mi ◽  
Shuichang Zhang ◽  
Guoyi Hu ◽  
Kun He
2018 ◽  
Vol 124 ◽  
pp. 215-227 ◽  
Author(s):  
Xiaoning Tong ◽  
Jianfang Hu ◽  
Dangpeng Xi ◽  
Mengbo Zhu ◽  
Jianzhong Song ◽  
...  

2004 ◽  
Vol 58 (4) ◽  
pp. 231-244 ◽  
Author(s):  
Haiping Huang ◽  
Jie Yang ◽  
Yufeng Yang ◽  
Xiujuan Du

Energies ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4641
Author(s):  
Zhengjian Xu ◽  
Biao Peng ◽  
Yanjun Feng ◽  
Luofu Liu ◽  
Chao Fang ◽  
...  

The Songliao Basin is the most productive petroliferous lacustrine basin in NE China, and numerous large gas fields with large proven reserves occur in its deep formations. However, considerable challenges remain: (1) the origins and genetic types of the natural gases are controversial; (2) the gas-source correlations are poorly studied; and (3) the migration distance is vague. In this study, these problems are addressed by the study of the gas compositions, light hydrocarbons, and stable hydrogen and carbon isotopes. The gases are predominantly of organic and thermogenic origins. The Huoshiling (J3h) and Shahezi (K1sh) gases are mainly mixtures of coal-derived and oil-associated gases and the mixed-sources of primary kerogen degradation and secondary oil cracking, while the Yingcheng (K1yc) gases are mainly coal-derived gases and predominantly derived from primary kerogen degradation. The gases in different sags are derived from the source rocks developed in the same sags where the gases accumulated, characterized by the proximal-source accumulation. Vertically, the gases in the J3h and K1sh are predominantly sourced by the proximal J3h and K1sh mudstones, while the gases in the K1yc are mainly derived from either the J3h or the K1sh source rocks, suggesting the gas migration with short distances.


2017 ◽  
Vol 44 (3) ◽  
pp. 505-512 ◽  
Author(s):  
Shuangfang LU ◽  
Wenbiao HUANG ◽  
Wenhao LI ◽  
Haitao XUE ◽  
Dianshi XIAO ◽  
...  

2021 ◽  
Vol 18 (2) ◽  
pp. 398-415
Author(s):  
He Bi ◽  
Peng Li ◽  
Yun Jiang ◽  
Jing-Jing Fan ◽  
Xiao-Yue Chen

AbstractThis study considers the Upper Cretaceous Qingshankou Formation, Yaojia Formation, and the first member of the Nenjiang Formation in the Western Slope of the northern Songliao Basin. Dark mudstone with high abundances of organic matter of Gulong and Qijia sags are considered to be significant source rocks in the study area. To evaluate their development characteristics, differences and effectiveness, geochemical parameters are analyzed. One-dimensional basin modeling and hydrocarbon evolution are also applied to discuss the effectiveness of source rocks. Through the biomarker characteristics, the source–source, oil–oil, and oil–source correlations are assessed and the sources of crude oils in different rock units are determined. Based on the results, Gulong and Qijia source rocks have different organic matter primarily detrived from mixed sources and plankton, respectively. Gulong source rock has higher thermal evolution degree than Qijia source rock. The biomarker parameters of the source rocks are compared with 31 crude oil samples. The studied crude oils can be divided into two groups. The oil–source correlations show that group I oils from Qing II–III, Yao I, and Yao II–III members were probably derived from Gulong source rock and that only group II oils from Nen I member were derived from Qijia source rock.


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