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温、压控制水溶气释放的模拟实验方法研究

石油实验地质

2002年 24卷第1期

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Title

MODELING EXPERIMENT OF THE AMOUNT OF RELEASED WATER-SOLUBLE GAS CONTROLLED BY TEMPERATURE AND PRESSURE

作者

张云峰

Authors

ZHANG Yun-feng

单位

大庆石油学院石油勘探系, 黑龙江安达 151400

Organization

Department of Petroleum Prospecting, Daqing Petroleum College, Anda, Heilongjiang 151400, China

摘要

在研究影响天然气在地层水中溶解能力各种因素的基础上,分析了造成水溶相天然气释放的地质条件。通过物理模拟实验,不仅证明水溶气在运移过程中析出的游离气量的大小主要受温度、压力的控制,并获得了温度、压力变化时,单位体积饱和天然气的地层水析出游离气量的回归方程,为估算气藏中水溶释放气贡献量研究基础数据提供了计算方法。

Abstract

Based on analysis of various factors affecting solubility of natural gas in formation water,the necessary geological conditions for releasing water soluble gas was studied.By experiment of physical modeling,it was observed that the amount of free gas from water soluble part was mainly controlled by temperature and pressure during its migration and a regress equation for describing free gas changes was proposed.The equation provided a solution in estimating the contribution of water soluble gas to a natural gas reservors.

关键词：

模拟实验; 水溶气; 温度; 压力;

Keywords:

modelling experiment; temperature; pressure; water soluble gas;

基金项目

中国石油天然气集团公司中青年科技创新基金项目(20011);黑龙江省杰出青年基金项目(00A003)

DOI

https://doi.org/10.11781/sysydz200201077