天然气地球科学

• 天然气地质学 • 上一篇    下一篇

南海海域新生界沉积盆地天然气成藏条件及资源前景

王彬 1,2,张强1,2,吕福亮1,2,杨涛涛1,2,杨志力1,2,孙国忠1,2,吴敬武1,2   

  1. 1.中国石油杭州地质研究院,浙江 杭州 310023;2.中国石油集团杭州地质研究所有限公司,浙江 杭州 310023
  • 收稿日期:2018-07-25 修回日期:2018-09-25 出版日期:2018-10-10
  • 作者简介:王彬(1981-),男,江苏如皋人,高级工程师,硕士,主要从事海域油气地质综合研究.E-mail:wangb_hz@petrochina.com.cn.
  • 基金资助:
    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);国家科技重大专项“南海中建海域深水油气地质条件及目标评价”(编号:2017ZX05026006)联合资助.

Accumulations and resource prospects of natural gas of Cenozoic basins in the South China Sea

Wang Bin1,2,Zhang Qiang1,2,Lü Fu-liang1,2,Yang Tao-tao1,2,Yang Zhi-li1,2,Sun Guo-zhong1,2,Wu Jing-wu1,2   

  1. 1.Hangzhou Institute of Geology,PetroChina,Hangzhou 310023,China;
    2.Hangzhou Institute of Geology Company Limited,Hangzhou 310023,China
  • Received:2018-07-25 Revised:2018-09-25 Online:2018-10-10

摘要: 000年以来,南海油气勘探开发快速发展,特别是深水区获得了重大天然气发现,但对该区的天然气资源认识程度较低,出现了勘探实践与南海资源评价结果不符的情况。因此,需要系统开展南海海域天然气资源评价,科学地认识南海海域天然气资源潜力。在归纳南海油气勘探新进展及油气地质新认识的基础上,总结了构造型、生物礁地层型、深水沉积岩性型及基岩潜山型4类天然气成藏模式,将台西南、北部湾、珠江口、琼东南、莺歌海、中建南、双峰、万安、南薇西、北康、曾母、文莱沙巴、南薇东、礼乐及西北巴拉望等15个主要沉积盆地作为资源评价对象;选择“以多参数类比法为主、以成因法和统计法为辅”的资源评价方法,建立了万安、文莱沙巴和珠江口等3个类比刻度区,代表断陷、走滑和前陆3类不同类型的沉积盆地,通过刻度区精细解剖,系统获得了南海天然气资源面积丰度等关键参数,最终利用特尔斐法综合,预测15个主要沉积盆地的天然气地质资源量为31.85×1012m3,明确了南海常规天然气勘探潜力及未来勘探方向。

关键词: 南海海域, 资源评价方法, 天然气勘探潜力

Abstract: The hydrocarbon exploration and development in the South China Sea has developed rapidly since 2000,especially in the deep-water areas (water depth >500m).High temperature and high pressure are generally developed,and the source rock is mainly composed of marine-continental transitional coal-bearing strata,supplemented by terrigenous marine mudstone,and natural gasreservoirs are the major hydrocarbon discoveries.The results of hydrocarbon exploration are inconsistent withthose for the resource evaluation in the South China Sea.Therefore,it is necessary to carry out natural gas resource evaluation systematically tounderstand the potential of natural gas resources scientifically in the South China Sea.On the basis of summarizing the new progress of hydrocarbon exploration in the South China Sea and the new understanding of petroleum geology,this paper summarizes four different types of natural gas accumulation models that are related to tectonic,bioreef strata,deep-water sedimentary lithology and bedrock buried hill lithology.We consider 15 major deep-water sedimentary basins as the target for resource evaluation.We use the resource evaluation method which is based on multi-parameter analogy method and supplemented by generative and statistical method.Three analog scale areas such as Wanan,Brunei Sabah and Pearl River Mouth Basin are established,and they represent three different types of sedimentary basins (trap,strike and foreland-basins).We also obtain the key parameters such as hydrocarbon accumulation conditions and abundance of natural gas resources,and finally use the Delphi method to predict the natural gas geological resources of 15 major sedimentary basins (31.85 trillion cubic meters).Finally,we define the geographical,planar and spatial distribution and exploration potential of the natural gas resources in the South China Sea.



Key words: South China Sea, Resource evaluation method, Natural gas exploration potential

中图分类号: 

  • TE132.1
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