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垂直裂缝井三线性流模型与Cinco-Ley模型
石油钻采工艺
1996年 18卷 第6期
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Title
THREE LINEAR FLOW MODEL AND CINCO-LEY MODEL FOR VERTICAL FRACTURED RESERVOIR
Authors
Zhang Yitang
Yan Yaru
单位
石油勘探开发科学研究院
大庆石油管理局第一采油厂
摘要
有限导流垂直裂缝井不稳定压力动态响应的计算速度,一直是该模型应用的一个难点。本文的研究表明,将三线性流模型解与拟径向流模型解结合起来是解决这一难点的有效方法。本文给出了拟径向流阶段视表皮系数Sa与无量纲裂缝导流系数FCD、裂缝表皮系数Sf之间的关系曲线,提出了将上述两个模型解结合起来的途径。实例分析结果表明,该计算方法快速、方便、实用。
Abstract
The calculating speed of transient pressure response is always difficult point in application of transient well testing with vertical fracture.Combining three linear flow model with pseudo radial flow model is an effective method to solve this problem.This paper presents the curves among apparent skin factor Sa of pseudo radial flow,dimensionless flow,dimensionless fracture conductivity FCD and fracture skin factor Sf,and introduces a way to integrate two models.Analysls results on practical examples show that this method has advantages of the quick,convenient and useful.
关键词：
垂直裂缝;
有限元法;
裂缝导流能力;
线性流;
模型;
计算方法;
Keywords:
vertical fracture;
finite element method;
fracture conductivity;
linear flow;
model;
calculation method;
DOI
10.3969/j.issn.1000-7393.1996.06.012
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