多分支水平井的产能及干扰研究

发布时间：2018-05-11 08:06

本文选题：多分支井 + 产能预测　；参考：《东北石油大学》2015年硕士论文

【摘要】：多分支水平井产能及干扰是采油工程,油藏工程和钻井工程研究的重要内容之一。随着多分支井的广泛应用,研究多分支井的产能及干扰对优化生产和指导钻井都具有重要意义。在广泛调研国内外多分支井产能、干扰研究的基础上,本论文通过分析不同类型多分支井及水平井的动态,针对油藏特征,对分支的数量、长度、夹角、偏心距,和地层厚度、地层非均质性、污染系数、支间窜流、生产压差等对产能有影响的因素进行了初步分析,并研究了这些影响因素间的联系。详细介绍了目前计算多分支井产能的常用方法,如,模拟多分支井的油藏与井筒的耦合模型并用半解析法求解的方法和应用解析方法模拟多分支井的方法等。本文中还给出了修正过的对称多分支井稳态产能的解析解,并用VB编制了简单的求产软件。
[Abstract]:Productivity and interference of multi-branch horizontal wells are one of the important contents in oil production engineering, reservoir engineering and drilling engineering. With the wide application of multi-branched wells, it is important to study the productivity and interference of multi-branched wells to optimize production and guide drilling. On the basis of extensive research on productivity and interference of multi-branched wells at home and abroad, this paper analyzes the performance of different types of multi-branched wells and horizontal wells, aiming at reservoir characteristics, the number, length, angle, eccentricity, and formation thickness of branches, The factors affecting productivity such as formation heterogeneity, pollution coefficient, inter-branch channeling flow and production pressure difference are analyzed preliminarily, and the relationship between these factors is studied. This paper introduces in detail the commonly used methods for calculating the productivity of multi-branched wells, such as simulating the coupling model between reservoir and wellbore of multi-branched wells and solving them by semi-analytical method and applying analytical methods to simulate multi-branched wells, etc. In this paper, a modified analytical solution of steady productivity of symmetric multi-branched wells is given, and a simple software for calculating production is compiled with VB.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE243

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