Geochemical parameters of thermal simulation of gas generation on lacustrine Type II shales in semi-open pyrolysis system

被引：4
|
作者：
Han, Wenxue [1 ,2 ,3 ]
Luo, Xia [3 ]
Lin, Senhu [3 ]
Zhao, Zhongying [3 ]
Liu, Jinzhong [4 ]
Wang, Qiang [4 ]
机构：
[1] Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China
[2] China Univ Petr, Sch Geosci, Qingdao 266580, Peoples R China
[3] PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
[4] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
来源：
GEOENERGY SCIENCE AND ENGINEERING | 2023年 / 231卷
关键词：
Thermal simulation of hydrocarbon generation; Natural gas; Carbon isotopic value; Residue routine pyrolysis; Gas generation process; TRIASSIC YANCHANG FORMATION; CHANG; 7; MEMBER; ORDOS BASIN; VITRINITE REFLECTANCE; ISOTOPIC REVERSALS; HYDROUS PYROLYSIS; KINETIC-MODELS; OIL CRACKING; NATURAL-GAS; SOURCE-ROCK;
D O I：
10.1016/j.geoen.2023.212178
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A semi-open thermal simulation of hydrocarbon generation experiment was conducted on the lacustrine Type II rocks (the Chang 7 member shale in the Ordos Basin, China). Geochemical characteristics of the hydrocarbon and non-hydrocarbon gas were studied. The yield of hydrocarbon and non-hydrocarbon gas is approximately the same in the whole process of hydrocarbon generation. The cumulative and net increased yield of the hydrocarbon gas were measured and quantified. Gas generation stages are divided and the source of the generation of different gases are studied. Carbon isotopic values of gases generated were tested. The pyrolysis residues at each temperature point were collected and subjected to routine pyrolysis analysis. Based on the experiment, the gas generation can be divided into 3 stages, and different stages have different gas source.
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页数：11
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