论文详情

异常高压气藏天然气偏差系数的确定

石油实验地质

2012年 34卷第6期

阅读：154

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Title

Determination of gas deviation factor for abnormal overpressure gas reservoir

作者

李定军

Authors

Li Dingjun

单位

中国石油化工股份有限公司西南油气分公司勘探开发研究院, 成都, 610081

Organization

Exploration & Production Research Institute of SINOPEC Southwest Branch Company, Chengdu, Sichuan 610081, China

摘要

地层条件下的天然气偏差系数是用来计算气藏储量的关键数据。据文献调研,针对异常高压气藏天然气偏差系数求取问题,目前可通过实验测定法、图版法、解析模型法来确定。对现有的各种方法的适用范围进行研究,通过多种方法的对比,结合新场气田须四下亚段异常高压气藏偏差系数求取的实例分析,得出可以采用实验测定法(PVT法)、高压条件下的图版法、LXF解析模型法求取异常高压气藏的天然气偏差系数。

Abstract

Gas deviation factors in formation conditions are the critical data to calculate gas reserves.As to abnormal overpressure gas reservoirs,several methods such as experimental determination,chart and analytic model can be used to determine gas deviation factors.A case study has been carried out in abnormal overpressure gas reservoir in the lower section of the fourth member of the Xujiahe Formation,the Xinchang Gas Field.It has been concluded that in abnormal overpressure reservoirs,gas deviation factors can be determined by means of experimental determination(PVT),chart under high pressure and LXF analytic model.

关键词：

偏差系数; 异常高压; 解析模型; PVT法; 图版法;

Keywords:

deviation factor abnormal overpressure analytic model PVT method chart;

基金项目

国家科技重大专项(2011ZX05002-004)资助

DOI

https://doi.org/10.11781/sysydz201206656