天然气地球科学

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我国深层天然气资源潜力、勘探前景与有利方向

于京都,郑民,李建忠,吴晓智,郭秋麟   

  1. 中国石油勘探开发研究院,北京 100083
  • 收稿日期:2018-07-27 修回日期:2018-09-11 出版日期:2018-10-10
  • 通讯作者: 郑民(1979-),男,山东潍坊人,高级工程师,博士,主要从事油气资源战略及石油地质综合研究. E-mail:zhenmin@petrochina.com.cn.
  • 作者简介:于京都(1983-),男,四川成都人,工程师,博士,主要从事油气资源战略及石油地质综合研究.E-mail:yujingdu@petrochina.com.cn.
  • 基金资助:
    国家科技重大专项课题“我国含油气盆地深层油气分布规律与资源评价”(编号:2017ZX05008-006);中国石油天然气集团公司重大科技专项“第四次油气资源评价”(编号:2013E-0502)联合资助.

Resource potential,explorative prospect and favorable direction for natural gas in deep formation of China

Yu Jing-du,Zheng Min,Li Jian-zhong,Wu Xiao-zhi,Guo Qiu-lin   

  1. PetroChina Research Institute of Petroleum Exploration & Development,Beijing 100083,China
  • Received:2018-07-27 Revised:2018-09-11 Online:2018-10-10

摘要: 深层天然气是我国油气勘探的重要战略领域,探明程度低(仅为18.46%),目前在进一步理清资源总量,明确资源分布特点,优选有利勘探方向等方面存在重要的研究价值。通过梳理深层天然气资源勘探开发现状,利用成因、类比及统计等研究方法,以中石油第四次油气资源评价成果为基础,开展分析,揭示深层天然气资源总量巨大,占据深层油气主导地位,达20.31×1012m3,占天然气总资源量的55%;分布上具有非均衡性,相对集中分布在四川盆地、塔里木盆地及松辽盆地(三者合计占比约为76.70%);岩性领域上以碳酸盐岩为主,占深层天然气探明储量的57.27%,主要对应于中西部古生代克拉通海相层系;剩余深层天然气资源勘探潜力可观,达16.56×1012m3,四川、松辽、塔里木三大盆地合计约占76.07%,其中松辽断陷群侏罗系—白垩系火山岩、川中古隆起震旦系—寒武系丘滩相白云岩、川北—川西北长兴组—飞仙关组礁滩相石灰岩及白云岩、川西泥盆系—下二叠统白云岩、塔中奥陶系丘滩相白云岩及库车坳陷白垩系碎屑岩是我国深层天然气的有利勘探方向,具有广阔的勘探前景。

关键词: 深层天然气, 资源量, 勘探潜力, 资源分布, 重点领域

Abstract: Natural gas contained in deep formation is a respect with strategic importance for hydrocarbon exploration in China,which presents a low exploration degree(18.46%).It indicates that there is confirmative necessity and research value for clarifying the resource potential and ascertaining the favorable explorative direction.From elaborating the present condition in exploration for natural gas resource,methodologies including hydrocarbon generation,analogy and statistics are applied based on the result of the  4th round of resource assessment of PetroChina,which indicates there is a huge total amount of resource potential.It occupies a predominant position as 55% (20.31×1012m3)of the totalamount of resource potential for natural gas.The anisotropic characteristic is presented in the respect of resource distribution.Sichuan,Tarim and Songliao Basins are recognized as the relatively more concentrated (76.70%) in resource potential.Similar feature in anisotropy also exists in the respect of lithology,carbonates occupies 57.27% of the proved reservoir of natural gas contained in deep formations,which mainly correlates to the marine strata of Paleozoic cratons in the center and west basins.In the respect of remaining resource,it is quite abundant (16.56×1012m3).76.07% of the remaining resource is contained in three main basins such as Sichuan,Songliao and Tarim Basins.In these basins,the favorable directions to further exploration for natural gas in deep formations are acquired as the clastic and volcanic reservoir from Jurassic to Cretaceous formed in the fault depression of Songliao Basin.Favorable exploration direction includes the dolomite reservoir of the lithological facie as mound and shoal in the center of paleo-uplift in Sichuan Basin,bioclastic limestone and dolomite reservoir in the facies of reef flat contained in Changxing and Feixianguan Formations in the north and northwest of Sichuan Basin,the dolomite reservoir from Devonian to Lower Permian in the west of Sichuan Basin,the Ordovician dolomite reservoir in the facies of mound and shoal in the center of Tarim Basin,and the Cretaceous clastic reservoir in Kuche Depression of Tarim Basin,etc.,which consequently reveals the prominent prospect for natural gas contained in deep formations.

Key words: Deep gas, Resource amount, Exploration potential, Resource distribution, Key concerns

中图分类号: 

  • 引用本文

    于京都, 郑民, 李建忠, 吴晓智, 郭秋麟. 我国深层天然气资源潜力、勘探前景与有利方向[J]. 天然气地球科学, 2018, 29(10): 1398–1408.

    Yu Jing-du, Zheng Min, Li Jian-zhong, Wu Xiao-zhi, Guo Qiu-lin. Resource potential,explorative prospect and favorable direction for natural gas in deep formation of China[J]. Natural Gas Geoscience, 2018, 29(10): 1398–1408.

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