成都理工大学学报（自然科学版）2011，Vol.38Issue(2)：140-146,7.
考虑二次梯度的非线性双重介质渗流模型
Study on quadratic pressure gradient terms of the nonliner filtering flow model in a dual medium reservoir
摘要
Abstract
The classical filtering flow theory is usually simplified into the common linear filtering flow. This makes some differences with the case in reality. The complicated nonlinear filtering flow mechanics marks a new direction of the development of the modern filtering flow mechanics. This paper mainly focuses on the reservoir with dual medium. In terms of the conservation law of mass, It deduces the quadratic pressure gradient nonlinear filtering flow partial differential equation. It discovers that the linear filtering flow is the approximation, simplification, and processing of the nonlinear one. Meanwhile, It establishes the dual medium unstable filtering flow mathematical model for well testing taking the quadratic pressure gradient terms into consideration. With the variable substitutions, It finally obtains its solution by using the Douglas-Jones estimate-calibrate numerical method. Moreover, it draws up the type curves for this model and makes the sensitivity analysis for various parameters as well as the error analysis resulting from quadratic pressure gradient terms. The results demonstrate that the consideration of quadratic pressure gradient terms fits the actual reservoir well and should not be ignored.关键词
双重介质油藏/非线性渗流/二次梯度/试井Key words
dual medium reservoir/ nonlinear filtering flow/ Binary pressure gradient/ well testing分类
能源科技引用本文复制引用
王本成,石国新,路建国,桑林翔,姬承伟,贾永禄..考虑二次梯度的非线性双重介质渗流模型[J].成都理工大学学报（自然科学版）,2011,38(2):140-146,7.基金项目
中国石油天然气总公司重点工程攻关项目(971007110165) （971007110165）
