论文详情

水力压裂效果动态预测

石油钻采工艺

1995年 17卷第6期

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Title

DYNAMIC PREDICTION OF HYDRAULIC FRACTURING EFFECTS

作者

赵金洲郭建春

Authors

Zhao Jinzhou Guo Jianchun

单位

西南石油学院

摘要

用油水两相流动的数值模拟方法建立了一套二维二相油藏一裂缝系统模型,按非径向流计算压裂井压裂前后的产能及含水率变化,考虑了井壁污染、裂缝壁面污染、裂缝导流能力随位置和时间变化、地层的非均质性及各向异性和流体的弹性膨胀能等因素对压裂井生产动态的影响,研制了一套预测水力压裂井压裂前后生产动态规律的实用软件。实例计算表明,提供的模型和方法及研制的软件既可用于预测油田压裂前后的生产动态和压裂后的增产效果,又可用于压裂井水力压裂方案的优化设计。

Abstract

Based on the numerical simulation method for two-phase flow, the two-dimensional and two-phase model for matrix-fracture system is estublished. It can be used to calculate the variation of productivity and water content before and after fracturing. This model considers the effects of wall damage, fracture face damage, variation of fracture conductivity with position and time, heterogeneity and anisotropism, elastic expansion energy on production performance of fractured well. According to this model, a set of application software for predicting production performance of fractured well has been developed. Practical application results show that this model and software can be used topredict preduction perfomance and stimulation effectiveness,and to optimize the hydraulic fracturing design.

关键词：

水力压裂; 动态分析; 增产效果; 预测; 数值模拟;

Keywords:

hydraulic fracturing; performance; analyses; stimulation effect; prediction;

基金项目

DOI

10.3969/j.issn.1000-7393.1995.06.013