论文详情

基于凝析气相变的凝析油聚集规律

石油钻采工艺

2005年 27卷第4期

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Title

CONDENSATE OIL ACCUMULATION REGULAR BASED ON PHASE CHANGE OF GAS CONDENSATE

作者

王志伟李相方童敏程时清安小平王连军

Authors

Wang Zhiwei Li Xiangfang Tong Min Cheng Shiqing An Xiaoping Wang Lianjun

单位

中国石油大学石油天然气工程学院, 北京 102249 西安石油大学石油工程学院, 陕西西安 710065 华北油田公司第一采油厂, 河北任丘 062552

摘要

正确认识凝析气藏开采过程中近井带凝析油聚集规律以及压力分布和饱和度分布特征是评价凝析气井产能的基础。依据物质平衡和渗流力学原理,从理论上对凝析气藏衰竭开发过程中三区凝析油聚集变化规律进行了推导,得到凝析气藏衰竭开发过程的三区凝析油聚集规律。实例计算表明,该新模型能够预测三区凝析油聚集规律,对于正确评价凝析气井的产能具有指导意义。

Abstract

Producing gas condensate reservoirs with pressure depletion will cause condensate oil accumulating at Near-well district as pres sure bellows dew-point pressure, which will decreasing permeability and deliverability. Research the distribution of condensate oil assembling near-well is very important for evaluating deliverability of gas condensate reservoirs. Based on theory of substance balance and fluid mechanics in porous medium, deduced a new extend model account for three-regions changes of gas condensate reservoirs, application of which shows it is significant for evaluating gas condensate deliverability by its three-regions enlarging and reducing rule.

关键词：

凝析气藏; 相变; 凝析油聚集; 三区模型;

Keywords:

gas condensate reservoir; phase change; condens ate oil accumulation; three-regions;

基金项目

DOI

10.3969/j.issn.1000-7393.2005.04.015