石油与天然气地质 ›› 1998, Vol. 19 ›› Issue (4): 346-350.doi: 10.11743/ogg19980416

• 论文 • 上一篇    下一篇

古构造对新场气田沙溪庙气藏的奠基作用

黎邦荣, 黎从军, 徐炳高   

  1. 中国新星石油公司西南石油局研究院院, 四川成都610059
  • 收稿日期:1998-09-22 出版日期:1998-12-25 发布日期:2012-01-18
  • 基金项目:

    “八五”科技攻关项目“四川盆地西部碎屑岩领域天然气富集规律及大中型气田预测与评价”(85-102-07-02)的成果之一

LAYING A FOUNDATION FOR SHAXIMIAO GAS POOLS IN XINCHANG GASFIELD BY PALEOSTRUCTURES

Li Bangrong, Li Congjun, Xu Binggao   

  1. Research Institute, Southwest Burea of Petroleum, CNSPC, Chengdu, Sichuan
  • Received:1998-09-22 Online:1998-12-25 Published:2012-01-18

PDF (PC)

759

被引次数

16

摘要：

新场气田沙溪庙气藏现今的产气井全部落在古构造范围内,说明古构造对气藏分布范围和边界有明显的控制作用。从构造低部位到高部位,天然气中甲烷含量、重烃含量、干燥系数、ΔR3值以及CO2和H2S含量均呈现规律性变化,说明古构造对天然气的运移方向也有很强的控制作用。今构造对古构造虽有较强的破坏作用,但基本上没有改变天然气的分布格局,对天然气的控制作用不明显,仅在局部地区(古今构造高点叠合部位)有所反映。

关键词: 古构造, 新场气田, 奠基作用, 运移聚集

Abstract:

Gas producing wells in Shaximiao gas pools,Xinchang Gasfields are all located in the extent of paleostructures,which indicates that the paleostructures laid a foundation for the distribution and the boundary of the gas pools.From lower to higher positions,the contents of methane,heavy HC,CO2 and H2S,the dry index,ΔR3 value of natural gas all change regularly.This shows that the paleostructures have controlled over the migration of gas.Recent structures may have considerable destructiveness,but thay cannot change the distribution pattern.Their control over gas pools is restricted in the superposed positions of the paleostructures with recent structures.