石油勘探与开发 >

2021 , Vol. 48 >Issue 6: 1081 - 1088

DOI: https://doi.org/10.11698/PED.2021.06.01

油气勘探

四川超级气盆地

  • 戴金星 ,
  • 倪云燕 ,
  • 刘全有 ,
  • 吴小奇 ,
  • 龚德瑜 ,
  • 洪峰 ,
  • 张延玲 ,
  • 廖凤蓉 ,
  • 严增民 ,
  • 李宏伟
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  • 1.中国石油勘探开发研究院,北京 100083;
    2.中国石化石油勘探开发研究院,北京 100083
戴金星（1935-）,男,浙江温州人,中国科学院院士,中国石油勘探开发研究院教授级高级工程师,从事天然气地质与地球化学研究工作。地址：北京市海淀区学院路20号,中国石油勘探开发研究院,邮政编码：100083。E-mail: djx@petrochina.com.cn

收稿日期: 2021-08-09

  修回日期: 2021-09-12

  网络出版日期: 2021-11-25

基金资助

中国科学院地学部咨询评议项目（2018-G01-B-005）; 国家重点研发课题（2019YFC1805505）; 国家自然科学基金项目（41872122）; 国家自然科学基金杰出青年项目（41625009）

收起

Sichuan super gas basin in southwest China

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

Received date: 2021-08-09

  Revised date: 2021-09-12

  Online published: 2021-11-25

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摘要

当沉积盆地累计产量超过50×108 bbl油当量（6.82×108 t油或7 931.66×108 m3气）和剩余可采资源量超过50×108 bbl油当量即称之为超级盆地。四川盆地至2019年底油气总产量为6 569×108 m3,气油比为80︰1,总剩余可采资源量达136 404×108 m3,属二级超级盆地;由于产出以气为主,故为超级气盆地。四川盆地之所以成为超级气盆地,因其具有4个优势：①气源岩优势,有9组主要气源岩,为全国各盆地之首;②资源量优势,总剩余天然气可采资源量为136 404×108 m3,全国各盆地中为第1;③大气田优势,有大气田27个,在全国各盆地位列首位;④总产量优势,至2019年底天然气累计总产量6 487.8×108 m3,是全国各盆地之冠。四川盆地在天然气勘探上有4个方向性的重大突破：①页岩气方向性的重大突破,在中国首先发现开发奥陶系五峰组—志留系龙马溪组页岩气;②致密砂岩气方向性的重大突破,中坝气田三叠系须家河组二段气藏是全国首个高采出度致密砂岩气藏;③碳酸盐岩超大气田方向性重大突破;④超深层气藏方向性重大突破。这些方向性重大突破引领和推动相关领域全国盆地取得重要进展。此外,按累计油气产量和剩余可采资源量、盆地大地构造属性和累计产量中油和气占比3类标准,对超级盆地进行了分类。图6表1参34

关键词： 四川盆地; 超级盆地; 油气产量; 资源量; 烃源岩; 大气田; 页岩气; 致密砂岩气; 超深层气藏

本文引用格式

戴金星 , 倪云燕 , 刘全有 , 吴小奇 , 龚德瑜 , 洪峰 , 张延玲 , 廖凤蓉 , 严增民 , 李宏伟 . 四川超级气盆地[J]. 石油勘探与开发, 2021 , 48(6) : 1081 -1088 . DOI: 10.11698/PED.2021.06.01

Abstract

A sedimentary basin is classified as a super basin when its cumulative production exceeds 5 billion barrels of oil equivalent (6.82×108 t of oil or 7931.66×108 m3 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 6569×108 m3, the ratio of gas to oil was 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 (136 404×108 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 6 487.8×108 m3, which ranked the first among all the basins in China. There are four major breakthroughs in natural gas exploration in Sichuan Basin: (1) Breakthrough in shale gas: shale gas was firstly found in the Ordovician Wufeng-Silurian Longmaxi formations in China. (2) 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) Breakthrough in giant carbonate gas fields. (4) 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: accumulative oil and gas production, remaining recoverable resources, tectonic attributes of the basin and the proportion of oil and gas in accumulative 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

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