西南石油大学学报(自然科学版) ›› 2013, Vol. 35 ›› Issue (2): 37-42.

• 地质勘探 • 上一篇    下一篇

四川盆地中三叠世盐盆分布与演化特征研究

黄东,杨光,杨天泉,汪华,石学文   

  1. 中国石油西南油气田公司勘探开发研究院,四川成都610041
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-04-01 发布日期:2013-04-01

Triassic Leikoupo Salt Distribution and Evolution in Sichuan Basin

Huang Dong, Yang Guang, Yang Tianquan, Wang Hua, Shi Xuewen   

  1. Research Institute of Exploration and Development,Southwest Petroleum Company,Chengdu,Sichuan 610051,Chin
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-04-01 Published:2013-04-01

摘要: 四川盆地卤水分布广泛,资源丰富, 早为世人所瞩目,中三叠统雷口坡组是四川盆地最早开采天然气和盐卤
的层系之一。根据盆地雷口坡组大量钻井资料研究表明,盆地雷口坡组主要成盐期分别为雷三2 期和雷四2 期,在盆
地东部和南部由于受到古隆起的影响,盐岩地层已被剥蚀难以保存,现今盐岩主要分布在开江古隆起和泸州古隆起的
西部以及天井山古隆起的南部(华蓥山以西—龙门山以东的川西—川中地区)。印支运动对盆地雷口坡组盐岩在平面
的迁移起着十分重要的作用,根据不同时期盐岩统计数据看,两期盐盆在平面上具有向西迁移、叠加的特征,其中川中
的GS1 井就钻遇了这两期的盐岩。

关键词: 雷三2 期, 雷四2 期, 迁移, 叠加, 四川盆地

Abstract: Middle Triassic Leikoupo group is one of the earliest formations where nature gas and salt brine were exploited
in Sichuan Basin. The large number of drilling data from Leikoupo indicate that the period of the Leikoupo salt is T2l2
3 and T2l2 4,respectively. Eastern and southern basin due to the effect of palaeohigh,the ancient salt rock strata have been eroded and
hard to conserve,today,the salt formation mainly exist in the Kaijiang palaeohigh and Luzhou west palaeohigh,as well as
Tianjing mountain. Indo-Chinese movement plays an important role in the horizontal migration of salt rock of Leikoupo group.
According to statistical data of rock salt in different periods,two salt basins in the plane display a feature of westward migration
and superimposition. An examlpe of such feature is Well Gongshan 1 on the two phases of rock salt in middle Sichuan Basin.

Key words: T2l23 period, T2l2 4 period, migrate, super in position, Sichuan Basin