Journal of Jilin University(Earth Science Edition) ›› 2022, Vol. 52 ›› Issue (5): 1735-1746.doi: 10.13278/j.cnki.jjuese.20210266

Previous Articles    

 Evaluation of Hydrocarbon Source Rock Characteristics of Lower Permian Fengcheng Formation in Mahu   Sag Based on Fine Grained Sedimentary Rock Type

Meng Ying1,2，Wang Jian1,2，Ma Wanyun1,2，Lei Haiyan1,2，Sun Pingchang3,4，Fang Shi3,4，Ding Cong3,4，Wang Zhuo3,4，Tao Lianxin3,4   

  1. 1. Key Laboratory of Shale Oil Exploration and Development, CNPC, Karamay 834000, Xinjiang, China 

    2. Research Institute of Experiment and Detection of Xinjiang Oilfeld Company, Karamay 834000, Xinjiang, China 

    3. College of Earth Sciences，Jilin University，Changchun 130061，China 

    4. Key Laboratory for Oil Shale and Coexisting Minerals of Jilin Province，Jilin University，Changchun 130061，China

  • Received:2022-08-24 Online:2022-09-15 Published:2022-10-11

PDF (PC)

289

Abstract:  Enormous breakthrough have been made in shale oil exploration of Fengcheng Formation in Mahu sag, Junggar basin. However, according to generally accepted evaluation standard of shale oil source rock, the quality characteristics of source rocks in this area are not ideal. In order to scientifically evaluate the quality of source rocks in Mahu sag, the sedimentary environment of Fengcheng Formation was studied, and the source rocks was evaluated according to the mineral composition of fine-grained rocks on the basis of systematic core observation and organic geochemical analysis. Fine grained rocks of Fengcheng Formation in Mahu sag were mainly deposited in normal semi deep lake, salinized semi deep lake and semi-salinized semi deep lake, hydrothermal semi deep lake and shallow lake. The organic matter characteristics of fine grained rocks in each environment are different, and the semi-salinized semi deep lake was favored to enrich organic matter, and the averaged TOC was nearly 1%. Further combining with the discrimination diagram of organic matter types, it showed that the source of organic matter in salinized semi deep lake and hydrothermal semi deep lake was dominated by aquatic organisms, while there were mixed organic matter sources of lacustrine and land in other environments. Based on the hydrocarbon generation potential evaluation and maturity estimation of organic matter (Vre=0.74%), it was revealed that the source rocks of Fengcheng Formation were in the mature stage of hydrocarbon expulsion, and the free hydrocarbons in fine-grained rocks were identified as primary hydrocarbons. Finally, due to the difference of adsorption capacity of different mineral composition of source rocks, the classification evaluation is carried out according to continental argillaceous source rocks and carbonate source rocks. The results showed that the Fengcheng Formation deposited effective source rocks with a cumulative thickness of nearly 250 m, with organic matter dominated by algae.  

Key words: Mahu sag, Fengcheng Formation, characteristics of organic matter, shale oil, evaluation of hydrocarbon source rock

CLC Number: 

  • P632
[1] Chen Zexi, Xu Zhiming, Li Bin, Zhong Li, Peng Jun, Zhang Kun, Wei Xiangfeng, Hao Jingyu. The Characteristics and Evaluation Method of Matrix-Type Shale Sweet Spots: Taking the Middle Jurassic Lianggaoshan Formation of Fuling Area in Sichuan Basin as an Example [J]. Journal of Jilin University(Earth Science Edition), 2026, 56(3): 788-803.
[2] Wang Jian , Zhang Yuanyuan, Wu Nan, Xu Qinghai, Cui Ziyue, Liu Xianfeng, Fu Qingmeng. Reservoir Characteristics and Classification Evaluation of Interlayered Type Shale Oil in Chang 7 Member of Zhijing-Ansai Area, Ordos Basin [J]. Journal of Jilin University(Earth Science Edition), 2026, 56(2): 453-468.
[3] Xiao Zhenglu, Li Yong, Lu Jungang, Qin Chunyu, Liu Zhanghao, Zhou Xiang, Jiang Qijun, Zhou Yixin . Shale Oil Enrichment Conditions and Favorable Exploration Targets in Jurassic Da’anzhai Member in Sichuan Basin [J]. Journal of Jilin University(Earth Science Edition), 2025, 55(4): 1039-1050.
[4] Zhang Kejia, Liao Mingyue, Liu Tao, Zhao Yuwu, Liu Zongbao, Tian Feng, Zhang Yan, He Youzhi.

An Identification Method of Shale Scanning Electron Microscope Image Based on Improved BlendMask [J]. Journal of Jilin University(Earth Science Edition), 2025, 55(4): 1387-1400.

[5] Wang An, Hu Mingyi, Gao Jiajun, Yang Liang, Xing Jilin. Element Geochemical Characteristics and Paleoenvironmental Significance of Mud Shale in the First Member of Qingshankou Formation of Changling Depression in Southern Songliao Basin [J]. Journal of Jilin University(Earth Science Edition), 2024, 54(6): 2075-2088.
[6] Cai Xiao, Xia Wei, Ma Xiaodong, Zang Suhua, Ding Anxu, Liu Yuxia, Hua Caixia, Zhu Yichuan, Li Hui.

Storage Spaces Characteristics and Influencing Factors of Shale Oil Reservoirs of Paleogene in Funing Formation of Qintong Sag, Subei Basin [J]. Journal of Jilin University(Earth Science Edition), 2024, 54(5): 1482-1493.

[7] Yu Zhengjun, Zhang Junhua, Zhou Hao, Ren Ruijun, Chen Yongrui, Yang Yulong. Brittleness Prediction and Evaluation of Shale Oil Reservoir in Southeastern Margin of Junggar Basin [J]. Journal of Jilin University(Earth Science Edition), 2024, 54(5): 1711-1723.
[8] Meng Qingtao, Hu Fei, Liu Zhaojun, Sun Pingchang, Liu Rong. Lithofacies Types and Genesis of Fine-Grained Sediments in Terrestrial Depression Lake Basin: Taking Upper Cretaceous Qingshankou Formation in Songliao Basin as an Example [J]. Journal of Jilin University(Earth Science Edition), 2024, 54(1): 20-37.
[9] Yi Juanzi, Zhang Shaomin, Cai Laixing, Chen Shouchun, Luo Xin, Yu Jixing, Luo Nina, Yang Tian. Strata and Sedimentary Filling Characteristics of the Lower Jurassic Lianggaoshan Formation and Its Hydrocarbon Exploration in Eastern Sichuan Basin#br# [J]. Journal of Jilin University(Earth Science Edition), 2022, 52(3): 795-815.
[10] Zhang Hui, Wang Zhizhang, Yang Liang, Li Zhongcheng, XingJilin. Quantitative Evaluation of Shale Oil in Different Occurrence States in First Member of Qingshankou Formation of Upper Cretaceousin South of Songliao Basin [J]. Journal of Jilin University(Earth Science Edition), 2022, 52(2): 315-327.
[11] Zhang Tao, Guo Zhiqi, Liu Cai, Liu Xiwu, Liu Yuwei, . Seismic Responses Simulation of InterSalt Shale Oil Rhythm Formation and Prediction of Layer Thickness of Thin Shale Reservoirs [J]. Journal of Jilin University(Earth Science Edition), 2022, 52(1): 281-.
[12] Liu Yinghui. Origin of Dolomitic Tuff in Permian Fengcheng Formation in WuXia Area of Junggar Basin [J]. Journal of Jilin University(Earth Science Edition), 2022, 52(1): 80-.
[13] Ma Zhongliang, Wang Qiang, Zheng Lunju, Zhang Caiming. Identification Method & Application of Temperature and Heating Time and Hydrocarbon Conversion Rate of Oil Shale In-Situ Mining [J]. Journal of Jilin University(Earth Science Edition), 2019, 49(2): 394-399.
[14] Ma Zhongliang, Zheng Lunju, Zhao Zhongxi. Influence and Its Revelation of Oil Shale In-Situ Mining Simulation in Different Boundary Conditions [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(2): 431-441.
[15] Wang Feiyu, Feng Weiping, Guan Jing, He Zhiyong. Geochemical Assessment of Lacustrine Tight Oil and Application [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(2): 388-397.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] You Minxin，Liu Jianmin. Application Status and Progress of Isotopic Geochemistry in Research of Emeishan Large Igneous Province (ELIP)[J]. Journal of Jilin University(Earth Science Edition), 2014, 44(4): 1231 -1243 .
[2] YANG Chun-mei, LI Hong-qi,LU Da-wei,ZHANG Fang-li,GAO Yuan,SHAO Ying-chao. The Relationship Between Rock Resistivity and Water Saturation in WaterDriveOil and OilDriveWater Process[J]. J4, 2005, 35(05): 667 -671 .
[3] ZHU Hong-chen,ZHANG Jiong-fei,QUAN Heng. Two Stages of Mesozoic Lithogenesis and Mineralization in Daxing’anling Mountains[J]. J4, 2005, 35(04): 436 -0442 .
[4] ZHU Jian-wei, ZHAO Gang, LIU Bo, GUO Wei, CHENG Jun. Identification Technology and It’s Application of Well-Logging About Oil Shale[J]. J4, 2012, 42(2): 289 -295 .
[5] CHEN Li, LIANG Hai-an，ZHANG Wen-juan，RONG Fan. Application of Fuzzy Mathematics in Division of Engineering Geo-Environment of Cities-An Example of Fushun City[J]. J4, 2008, 38(5): 837 -0840 .
[6] GAO Gui-mei,SU Ke,WANG Wen-ying,GAN Shu-cai,LIU Zhao-jun. Study on Rare Earth and Trace Elements in Oil Shale Samples, Huadian, Jilin Province[J]. J4, 2006, 36(6): 974 -0979 .
[7] WU Kong-yun,JIANG Zhong-cheng,YE Ye. Influence of Different Plant Communities On Erosion Rates of Limestone Rock Blocks[J]. J4, 2007, 37(5): 967 -0971 .
[8] ZHOU Yan-zhang, CHI Bao-ming, LIU Zhong-pei. Mode of Structural Control about Groundwater Pour-in Mechanism in Xiadian Gold Deposits in Shandong Province[J]. J4, 2008, 38(2): 255 -0260 .
[9] ZHANG Yuan, LIU Lian-deng,SUN Jing-gui,CHEN Guo-hua,ZHANG Hong-xi,YAN Fu-chuan, YANG Kai-chun. Two Phase Overprinting Mineralization in Huangbuling Gold Deposit in Northwestern Jiaodong Peninsula[J]. J4, 2008, 38(1): 21 -0026 .
[10] LU Cheng-peng, SHU Long-cang, YUAN Li-bo, ZHANG Rong-rong, HUANG Bi-juan, WANG Bin-bin. Determination of Hydrogeologic Parameters of Karst Aquifer Based on Tracer Test[J]. J4, 2009, 39(4): 717 -721 .
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd