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RP - NP 曲线在溶解气可采储量计算中的应用

断块油气田

2004年 11卷第02期

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Title

The Relation Curve in the Use of Recoverable Solution Gas between Cumulative Oil and Cumulative Produced Gas Oil Ratio

作者

丁良成1 ,2

Authors

Ding Liangcheng

单位

1. 中国地质大学,武汉　2. 胜利油田有限公司地质科学研究院

摘要

通常,对于可采储量采出程度大于50 %开发到中后期的油藏,累积产油量与累积生产气油比之间一般存在线形关系。当累积产油量等于原油可采储量时,对应的累积生产气油比与原油可采储量的乘积,即为溶解气可采储量。值得注意的是,计算时必须遵循每一时刻瞬时生产气油比都大于或等于零的基本原则,在这一基本原则指导下,给出了预测最终累积生产气油比时直线外推的范围,以及在不同范围溶解气可采储量相应的计算公式。

Abstract

In general , when recovery percent of reserves is lager

than 50 percent at latter stage , the relation between

cumulative oil and cumulative produced gas oil ratio is linear.

As cumulative oil equals to oil reserve , the product of

cumulative produced gas oil ratio by oil reserve is solution gas

reserve. It should be state out that instantaneous gas oil ratio

must be lager than zero during calculation. On the basis of

this principle , the category of straight extrapolation and

method of solution gas reserve are given in this paper.

关键词：

累积产油量; 累积生产气油比; 溶解气; 可采储量;

Keywords:

Cumulative oil , Cumulative produced gas oil ratio , Solution gas , Reserve.

;

基金项目

DOI