Geochemical characteristics of shale gas and its response to thermal maturity (Ro) in the Longmaxi formation, Dingshan area, Southeast Sichuan

被引：6
|
作者：
Zhong, Cheng [1 ,2 ]
Qin, Qirong [1 ,2 ]
Fan, Cunhui [1 ,2 ]
Hu, Dongfeng [3 ]
机构：
[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China
[2] Southwest Petr Univ, Sch Sci & Technol, Chengdu, Sichuan, Peoples R China
[3] SINOPEC, Explorat Co, Chengdu, Sichuan, Peoples R China
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2019年 / 37卷 / 11期
关键词：
longmaxi formation shale; geochemical characteristics of shale gas; methane; wetness; oil - formed gas; carbon isotope; thermal maturity; MISSISSIPPIAN BARNETT; MARINE; CARBON; BASIN; FRACTIONATION; REVERSALS; TEXAS;
D O I：
10.1080/10916466.2018.1558241
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：
The composition and carbon isotope distribution of shale gas from the Longmaxi Formation in the Dingshan area were measured, and their responses to thermal maturity (Ro) were analyzed. The results show that the shale gas is mainly composed of methane (97.98-98.99%), ethane, propane and nonhydrocarbon gases (N-2 and CO2) and is an organic high temperature oil-type cracked gas. The wetness value [(C-2+C-3)/(C-1+C-2+C-3) x 100%] ranges from 0.39% to 0.74%. The early (Ro > 1.3%) residual kerogen and crude oil cracking gas was mixed with the late (Ro > 2.0%) secondary cracking gas, resulting in the full inversion of the carbon isotope sequence (C-13(1)>C-13(2)>C-13(3)).
引用
收藏
页码：1270 / 1278
页数：9
相关论文
共 50 条
  • [21] Reservoir characteristics of shale gas in Longmaxi Formation of the Lower Silurian, southern Sichuan
    Wang, Y. (wangyuman@petrochina.com.cn), 1600, Science Press (33):
  • [22] Brittleness evaluation of the shale reservoirs in Wufeng and Longmaxi formation in the DS Area, southeast Sichuan, China
    Luo, Zhenhua
    Qin, Qirong
    Li, Hu
    Zhong, Cheng
    Dai, Xiaojun
    INDIAN JOURNAL OF GEO-MARINE SCIENCES, 2018, 47 (10) : 1959 - 1968
  • [23] Gas-Bearing Characteristics of the Longmaxi Formation Shale in the Changning Area, Southern Sichuan Basin, SW China
    Lu, Chang
    Chen, Lei
    Jing, Cui
    Tan, Xiucheng
    Nie, Zhou
    Chen, Xin
    Heng, De
    FRONTIERS IN EARTH SCIENCE, 2022, 10
  • [24] An adsorption model with multiple factors for shale gas: Taking the Wufeng Formation-Longmaxi Formation shale in southeast Sichuan as an example
    Li A.
    Han W.
    Sun H.
    Memon A.
    Meitan Xuebao/Journal of the China Coal Society, 2021, 46 (03): : 1003 - 1013
  • [25] Carbon isotopic composition of shale gas in the Silurian Longmaxi Formation of the Changning area, Sichuan Basin
    Feng Z.
    Liu D.
    Huang S.
    Wu W.
    Dong D.
    Peng W.
    Han W.
    2016, Science Press (43): : 705 - 713
  • [26] Carbon isotopic composition of shale gas in the Silurian Longmaxi Formation of the Changning area, Sichuan Basin
    Feng Ziqi
    Liu Dan
    Huang Shipeng
    Wu Wei
    Dong Dazhong
    Peng Weilong
    Han Enxue
    PETROLEUM EXPLORATION AND DEVELOPMENT, 2016, 43 (05) : 769 - 777
  • [27] Sequence stratigraphy and its application in marine shale gas exploration: A case study of the Lower Silurian Longmaxi Formation in the Jiaoshiba shale gas field and its adjacent area in southeast Sichuan Basin, SW China
    Chen, Lei
    Lu, Yongchao
    Jiang, Shu
    Li, Jianqing
    Guo, Tonglou
    Luo, Chan
    Xing, Fengcun
    JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2015, 27 : 410 - 423
  • [28] Geochemical Characteristics of Bentonite and Its Influence on Shale Reservoir Quality in Wufeng-Longmaxi Formation, South Sichuan Basin, China
    Chen, Lei
    Wang, Gaoxiang
    Yang, Yang
    Jing, Cui
    Chen, Man
    Tan, Xiucheng
    ENERGY & FUELS, 2019, 33 (12) : 12366 - 12373
  • [29] Characteristics, capability, and origin of shale gas desorption of the Longmaxi Formation in the southeastern Sichuan Basin, China
    Tang, Xianglu
    Jiang, Zhenxue
    Jiang, Shu
    Cheng, Lijun
    Zhong, Ningning
    Tang, Ling
    Chang, Jiaqi
    Zhou, Wen
    SCIENTIFIC REPORTS, 2019, 9 (1)
  • [30] Geological Characteristics of Deep Shale Gas in the Silurian Longmaxi Formation in the Southern Sichuan Basin, China
    He, Shun
    Qin, Qirong
    Li, Hu
    Zhao, Shengxian
    FRONTIERS IN EARTH SCIENCE, 2022, 9
12345