新疆石油地质 ›› 2006, Vol. 27 ›› Issue (5): 629-632.

• 讨论与争鸣 • 上一篇    下一篇

济阳坳陷二氧化碳气藏的成因判别

杜灵通1, 吕新彪2, 陈红汉2   

  1. 1.宁夏大学西部发展研究中心, 银川 750021;
    2.中国地质大学资源学院, 武汉 430074
  • 收稿日期:2005-12-13 修回日期:2005-12-13 出版日期:2006-10-01 发布日期:2020-10-20
  • 作者简介:杜灵通(1980-), 男, 宁夏同心人, 在读硕士研究生, 油气资源评价,(Tel) 0951-2061909(E-mail) dult80@sina.com.
  • 基金资助:
    中石化“十五”重点项目, 胜利山东探区CO2气资源勘探综合研究(P02066)资助

Origin Discrimination of CO2 Gas Pools in Jiyang Depression

DU Ling-tong1, LV Xin-biao2, CHEN Hong-han2   

  1. 1. Research Center of Western Development, Ningxia University, Yinchuan, Ningxia 750021, China;
    2. Faculty of Earth Resources, China University of Geosciences, Wuhan, Hubei 430074, China
  • Received:2005-12-13 Revised:2005-12-13 Online:2006-10-01 Published:2020-10-20

摘要: CO2气藏成因的判别依据主要有气藏CO2的体积百分含量、CO2碳同位素(δ13C) 、氦同位素的R/Ra、CO2/3He等。将济阳坳陷已发现的6个CO2气藏的CO2的体积分数、CO2碳同位素(δ13C) 、氦同位素的R/Ra、CO2/3He等数据进行系统的判别,得出这6个气藏均为无机成因的,其中平方王气藏幔源和壳源的CO2所占比例相近; 平南气藏壳源成因的CO2所占比例较大; 花沟、高青、阳25井等气藏幔源成因的CO2所占比例较大。

关键词: 济阳坳陷, 二氧化碳, 成因, 同位素

Abstract: The origin discrimination of CO2 gas pool is mainly based on CO2 volume ratio, δ13C, R/Ra and CO2/3He, etc. It is believed that six CO2 gas pools found in Jiyang depression are identified to be inorganic origin ones based on these indices, of which Pingfangwang gas pool originated from CO2 with nearly equal proportion of mantle and crust compositions; Pingnan gas pool has more crust composition; Huagou, Gaoqing and Yang-25 Well gas pools have more mantle compositions.

Key words: Jiyang depression, carbon dioxide, origin, isotope

中图分类号: