西南石油大学学报(自然科学版) ›› 2002, Vol. 24 ›› Issue (4): 1-4.DOI: 10.3863/j.issn.1000-2634.2002.04.001

• 地质勘探 •    下一篇

塔里木盆地凝析气藏的成藏条件探析

张吉1 张烈辉1 周守信1 徐春梅1 南力亚2
  

  1. 1.西南石油学院,四川南充637001; 2.长庆油气分公司第三采油厂
  • 收稿日期:2001-11-26 修回日期:1900-01-01 出版日期:2002-08-20 发布日期:2002-08-20
  • 通讯作者: 张吉

AN APPROACH TO THE CONDITIONS FOR CONDENSATE GAS POOL FORMATION IN TARIM BASIN

ZHANG Ji 1 ZHANG Lie-hui1 ZHOU Shou-xin1 XU Chun mei1 NAN Li ya2   

  1. Southwest Petroleum Institute, Nanchong Sichuan 637001, China
  • Received:2001-11-26 Revised:1900-01-01 Online:2002-08-20 Published:2002-08-20
  • Contact: ZHANG Ji

摘要: 摘要:从生气母质、温压条件、构造作用和封盖条件四方面分析和总结了塔里木盆地凝析气藏的成藏条件。认为塔里木盆地的生气母质既有陆相腐殖型,又有海相腐泥型,但两种母质生凝析气的热演化阶段不一样。塔里木盆地凝析气藏富集温度为70~130℃,压力范围为35~60 MPa。后期改造作用是生成次生凝析气藏的主要因素,良好的区域盖层又是凝析气藏富集的重要因素。

关键词: 凝析气藏, 成藏条件, 塔里木盆地

Abstract: The conditions, in terms of hydrocarbon source, temperature, pressure, tectonic activities and sealing, for the formation of condensate gas pools in the Tarim basin are analyzed and discussed. It is concluded that the gas-generating kerogens are of both the land-derived humic type and the marine sapropelic type, withthe two types generating gas condensates at different
thermal evolutional stages. The temperature and pressure ranges for the gas condensate accumulations in the basin are 70-130℃and 35-60 MPa, respectively. The existence of favorable regional capping beds is an important factor for the enrichment of gas condensates, while later phase tectonic reworking is the major factor for the formation of secondary gas condensate pools.

Key words: gas condensate, pool formation conditions, Tarim bas

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