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

Li Bangrong; Li Congjun; Xu Binggao

doi:10.11743/ogg19980416

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LAYING A FOUNDATION FOR SHAXIMIAO GAS POOLS IN XINCHANG GASFIELD BY PALEOSTRUCTURES
Vol. 19, Issue 4, Pages: 346-350(1998)
Online First：25 December 1998，

Published：1998
DOI： 10.11743/ogg19980416
稿件说明：

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DOI：

Li Bangrong, Li Congjun, Xu Binggao. LAYING A FOUNDATION FOR SHAXIMIAO GAS POOLS IN XINCHANG GASFIELD BY PALEOSTRUCTURES[J]. 1998, 19(4): 346-350. DOI： 10.11743/ogg19980416.

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、ΔR

值以及CO

和H

S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。

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

and H

the dry index

ΔR

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.