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Hydrocarbon Generation Kinetics of the Gas-Prone Kerogens in the Central Uplift of the South Yellow Sea Basin
Cai, Laixing1,2; Zeng, Zhigang1,2,4,5; Zhang, Xunhua2,3; Xiao, Guolin2,3; Guo, Xingwei2,3; Pang, Yumao2
2020-10-15
发表期刊ENERGY & FUELS
ISSN0887-0624
卷号34期号:10页码:12225-12238
通讯作者Zeng, Zhigang([email protected]) ; Zhang, Xunhua([email protected])
摘要A kinetic hydrocarbon generation model is critical to the evaluation of hydrocarbon prospects, which can promote offshore oil-gas exploration in the South Yellow Sea Basin (SYSB). To ascertain the hydrocarbon generation kinetic parameters of the gas-prone kerogens in the Central Uplift of the South Yellow Sea Basin (CUSYSB), open-system pyrolysis gas chromatography (PY-GC) simulation experiments were performed on two silty mudstones containing type II2 kerogens from borehole CSDP-2, which were supplemented by a literature investigation of the kinetic models for type III kerogens. The hydrocarbon products of type II2 kerogens are mainly gas, accounting for 54.56%-57.31% of all products, and oil, accounting for 42.69%- 45.44% of all products. In the parallel first-order reaction model with multiple frequency (pre-exponential) factors and a discrete activation energy distribution (the MFF model), the activation energy of gas generation primarily ranges from 43.0 to 52.6 kcal/mol (average: 46.8 kcal/mol), which is slightly lower than the oil generation activation energy ranging from 45.4 to 54.9 kcal/mol (average: 49.9 kcal/mol). Geological extrapolation results reveal that the three sets of source rocks, i.e., the Lower Triassic Qinglong Formation (T(1)q), Permian, and Lower Silurian Gaojiabian Formation (S(1)g) source rocks, are characterized by sequential multistage hydrocarbon generation, with average hydrocarbon transformation ratios of 18.51%, 51.14%, and 95.58%, respectively. However, under the action of anomalous heat flows, the highest hydrocarbon transformation ratio of the Lower Permian source rocks reaches 92.81%. Moreover, on the basis of previous knowledge on the effective Upper Permian sandstone reservoirs and the suitable accumulation conditions, the Permian rocks with favorable hydrocarbon prospects have been identified in the CUSYSB, which are characterized by high-intensity hydrocarbon generation and expulsion.
DOI10.1021/acs.energyfuels.0c01885
收录类别SCI
语种英语
资助项目National Natural Science Foundation of China[41906188]; National Natural Science Foundation of China[41776081]; National Natural Science Foundation of China[91958213]; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-02]; Special Fund for the Taishan Scholar Program of Shandong Province[ts201511061]; CSDP project[DD20160147]
WOS研究方向Energy & Fuels ; Engineering
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000582567000034
出版者AMER CHEMICAL SOC
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/169160
专题海洋地质与环境重点实验室
通讯作者Zeng, Zhigang; Zhang, Xunhua
作者单位1.Chinese Acad Sci, Seafloor Hydrothermal Act Lab, CAS Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China
3.China Geol Survey, Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
第一作者单位中国科学院海洋研究所
通讯作者单位中国科学院海洋研究所
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Cai, Laixing,Zeng, Zhigang,Zhang, Xunhua,et al. Hydrocarbon Generation Kinetics of the Gas-Prone Kerogens in the Central Uplift of the South Yellow Sea Basin[J]. ENERGY & FUELS,2020,34(10):12225-12238.
APA Cai, Laixing,Zeng, Zhigang,Zhang, Xunhua,Xiao, Guolin,Guo, Xingwei,&Pang, Yumao.(2020).Hydrocarbon Generation Kinetics of the Gas-Prone Kerogens in the Central Uplift of the South Yellow Sea Basin.ENERGY & FUELS,34(10),12225-12238.
MLA Cai, Laixing,et al."Hydrocarbon Generation Kinetics of the Gas-Prone Kerogens in the Central Uplift of the South Yellow Sea Basin".ENERGY & FUELS 34.10(2020):12225-12238.
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