Petroleum Exploration and Development >

2021 , Vol. 48 >Issue 6: 1251 - 1259

DOI: https://doi.org/10.1016/S1876-3804(21)60284-7

Sichuan super gas basin in southwest China

  • Jinxing DAI ,
  • Yunyan NI ,
  • Quanyou LIU ,
  • Xiaoqi WU ,
  • Deyu GONG ,
  • Feng HONG ,
  • Yanling ZHANG ,
  • Fengrong LIAO ,
  • Zengmin YAN ,
  • Hongwei LI
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  • 1. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China
    2. Petroleum Exploration and Production Research Institute, SINOPEC, Beijing 100083, China

Received date: 2021-08-09

  Revised date: 2021-09-12

  Online published: 2021-12-29

Supported by

Consultation and Evaluation Project of Department of Geosciences, Chinese Academy of Sciences(2018-G01-B-005);State key R & D Project(2019YFC1805505);National Natural Science Foundation of China(41872122);Outstanding Youth Program of National Natural Science Foundation of China(41625009)

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Abstract

A sedimentary basin is classified as a super basin when its cumulative production exceeds 5 billion barrels of oil equivalent (6.82×108t of oil or 7931.66×108m3 of gas) and its remaining recoverable resources are at least 5 billion barrels of oil equivalent. By the end of 2019, the total output of oil and gas in Sichuan Basin had been 6569×108m3 with the gas-oil ratio of 80:1, and the total remaining recoverable resources reached 136 404×108 m3, which makes it as a second-tier super basin. Because the output is mainly gas, it is a super gas basin. The reason why the Sichuan Basin is a super gas basin is that it has four advantages: (1) The advantage of gas source rocks: it has the most gas source rocks (9 sets) among all the basins in China. (2) The advantage of resource quantity: it has the most total remaining recoverable resources among all the basins in China (136404×108 m3). (3) The advantage of large gas fields: it has the most large gas fields (27) among all the basins in China. (4) The advantage of total production: by the end of 2019, the total gas production had been 6 487.8×108m3, which ranked the first among all the basins in China. There are four major breakthroughs in natural gas exploration in Sichuan Basin: (1) A breakthrough in shale gas: shale gas was firstly found in the Ordovician Wufeng-Silurian Longmaxi formations in China. (2) A breakthrough in tight sandstone gas: the Triassic Xu2 Member gas reservoir in Zhongba gas field is the first high recovery tight sandstone gas reservoir in China. (3) A breakthrough in giant carbonate gas fields. (4) A breakthrough in ultra-deep gas reservoir. These breakthroughs have led to important progress in different basins across the country. Super basins are classified according to three criteria: cumulative production and remaining recoverable resources of oil and gas, tectonic attributes of the basin, and the proportions of oil and gas in cumulative oil and gas production.

Key words： Sichuan Basin; super basin; oil and gas production; resource; source rocks; large gas fields; shale gas; tight sandstone gas; ultra-deep gas reservoir

Cite this article

Jinxing DAI , Yunyan NI , Quanyou LIU , Xiaoqi WU , Deyu GONG , Feng HONG , Yanling ZHANG , Fengrong LIAO , Zengmin YAN , Hongwei LI . Sichuan super gas basin in southwest China[J]. Petroleum Exploration and Development, 2021 , 48(6) : 1251 -1259 . DOI: 10.1016/S1876-3804(21)60284-7

References

[1] DAI Jinxing. Geographical distribution of oil and gas discovered in ancient China. Oil & Gas Geology, 1981, 2(3): 292-299.
[2] MEYERHOFF A A. Developments in Mainland China. AAPG Bulletin, 1970, 54(8): 1949-1969.
[3] LI Jianzhong, ZHENG Min, GUO Qiulin, et al. Forth assessment for oil and gas resource. Beijing: Petroleum Industry Press, 2019: 203-270.
[4] DAI jinxing, NI Yunyan, QIN Shengfei, et al. Geochemical characteristics of ultra-deep natural gas in the Sichuan Basin, SW China. Petroleum Exploration and Development, 2018, 45(4): 619-628.
[5] DAI Jinxing. The four major onshore gas provinces in China. Natural Gas and Oil, 2019, 37(2): 1-6.
[6] IHS. Finding the next Super Basin. Colorado: IHS, 2016.
[7] FRYKLUND B, STARK P. Super basins: New paradigm for oil and gas supply. AAPG Bulletin, 2020, 104(12): 2507-2519.
[8] DAI Jinxing, NI Yunyan, DONG Dazhong, et al. 2021-2025 is a period of great development of China's natural gas industry: Suggestions on the exploration and development of natural gas during the 14th Five-Year Plan in China. Natural Gas Geoscience, 2021, 32(1): 1-16.
[9] DAI Jinxing. Chinese great advance: From a gas-shortage country to a giant gas-producer. Petroleum Exploration and Development, 2005, 32(1): 1-5.
[10] DAI Jinxing, CHEN Jianfa, ZHONG Ningning, et al. Large gas fields and their gas sources in China. Beijing: Science Press, 2003: 83-93.
[11] DAI Jinxing. Giant coal derived gas fields and their gas sources in China. Beijing: Science Press, 2014: 2-8.
[12] LIU Shugen, DENG Bin, SUN Wei, et al. May Sichuan Basin be a super petroliferous basin?. Journal of Xihua University (Natural Science Edition), 2020, 39(5): 20-35.
[13] DAI Jinxing, DONG Dazhong, NI Yunyan, et al. Some essential geological and geochemical issues about shale gas research in China. Natural Gas Geoscience, 2020, 31(6): 745-760.
[14] U.S. Energy Information Administration. U.S. crude oil and natural gas proved reserves, year-end 2019. Washington: EIA, 2020.
[15] MA Yongsheng, CAI Xunyu, ZHAO Peirong. China’s shale gas exploration and development: Understanding and practice. Petroleum Exploration and Development, 2018, 45(4): 561-574.
[16] MA Xinhua. A golden era for natural gas development in the Sichuan Basin. Natural Gas Industry, 2017, 37(2): 1-10.
[17] ZHOU Dehua, SUN Chuanxiang, LIU Zhongbao, et al. Geological characteristics of continental shale gas reservoir in the Jurassic Da’anzhai Member in the northeastern Sichuan Basin. China Petroleum Exploration, 2020, 25(5): 30-43.
[18] LIU Haotian, LI Xiong, WAN Yunqiang, et al. Formation conditions and exploration and development potential of continental shale gas: A case of Dongyuemiao Member of the Jurassic in north Fuling area, eastern Sichuan Basin. Marine Origin Petroleum Geology, 2020, 25(2): 148-154.
[19] LIU Baohe. Development of oil and gas fields in China, Volume of southwest oil and gas area(CNPC) (Volume 1). Beijing: Petroleum Industry Press, 2011: 753-789.
[20] DU Jinhu, WANG Zecheng, ZOU Caineng, et al. Geologic theory and exploration practice of ancient large carbonates gas field. Beijing: Petroleum Industry Press, 2015: 130-134, 148-151.
[21] ZHU Guangyou, WANG Tongshan, XIE Zengye, et al. Giant gas discovery in the Precambrian deeply buried reservoirs in the Sichuan Basin, China: Implications for gas exploration in old Cratonic Basins. Precambrian Research, 2015, 262: 45-66.
[22] WEI Guoqi, XIE Zengye, SONG Jiarong, et al. Features and origin of natural gas in the Sinian—Cambrian of central Sichuan paleo-uplift, Sichuan Basin, SW China. Petroleum Exploration and Development, 2015, 42(6): 702-711.
[23] ZHU Guangyou, ZHANG Zhiyao, ZHOU Xiaoxiao, et al. The complexity, secondary geochemical process, genetic mechanism and distribution prediction of deep marine oil and gas in the Tarim Basin, China. Earth-Science Reviews, 2019, 198: 1-28.
[24] YUE Hong, ZHAO Luzi, YANG Yu, et al. Great discovery of oil and gas exploration in Cambrian Canglangpu Formation of the Sichuan Basin and its implications. Natural Gas Industry, 2020, 40(11): 11-19.
[25] XU Chunchun, SHEN Ping, YANG Yueming, et al. New understandings and potential of Sinian-Lower Paleozoic natural gas exploration in the central Sichuan paleo-uplift of the Sichuan Basin. Natural Gas Industry, 2020, 40(7): 1-9.
[26] YANG Yueming, WANG Wenzhi, WEN Long, et al. Sedimentary evolution characteristics and large-scale natural gas accumulation pattern of microbial carbonate in the slope area of major paleouplift, the Sichuan Basin. Natural Gas Industry, 2021, 41(3): 38-46.
[27] MA Xinhua, YANG Yu, WEN Long, et al. Distribution and exploration direction of medium- and large-sized marine carbonate gas fields in Sichuan Basin, SW China. Petroleum Exploration and Development, 2019, 46(1): 1-13.
[28] DAI Jinxing. Distribution characteristics of gas pool in China. Oil & Gas Geology, 1982, 3(3): 270-276.
[29] LIU Baohe. Development of oil and gas fields in China, volume of southwest oil and gas area(CNPC)(Volume 4). Beijing: Petroleum Industry Press, 2011: 4357-4377.
[30] NI Y, YAO L, LIAO F. et al. Geochemical comparison of the deep gases from the Sichuan and Tarim Basins, China. Frontiers in Earth Science, 2021, 9: 1-22.
[31] WANG Zhaoming, LI Yong, XIE Huiwen, et al. Geological theory and exploration practice of ultra-deep oil and gas in Kuqa foreland basin. Beijing: Petroleum Industry Press, 2017: 167-172.
[32] WU X, LIU Q, LIU G, et al. Genetic types of natural gas and gas-source correlation in different strata of the Yuanba gas field, Sichuan Basin, SW China. Journal of Asian Earth Sciences, 2019, 181: 103906.
[33] ZHU Guangyou, CAO Yinghui, YAN Lei, et al. Petroleum exploration potential and favorable areas of ultra-deep marine strata deeper than 8000 meters in Tarim Basin. Natural Gas Geoscience, 2018, 29(6): 755-772.
[34] WOOD MACKENZIE. Upstream data tool(UDT). (2021-08-09).http://www.woodmac.com.
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