异常高压气藏开发物理模拟相似理论研究  

Similarity Theory of Physical Simulation in the Dvelopment of Abnormal Pressure Gas Reservoirs

作　　者：沈伟军[1,2] 李熙喆[3] 陆家亮[3] 刘晓华[3] 

机构地区：[1]中国科学院渗流流体力学研究所 [2]中国科学院大学,北京100049 [3]中国石油勘探开发研究院廊坊分院,廊坊065007

出　　处：《科学技术与工程》2013年第35期10460-10465,共6页Science Technology and Engineering

基　　金：国家科技重大专项(50150503-12);塔里木油田勘探开发关键技术研究(2010E-2103)联合资助

摘　　要：为了使物理模拟实验结果更好地应用到气田中,为气田开发方案设计提供理论指导,在前人针对水驱油藏研究的基础上,针对异常高压气藏的特点,从气藏气水两相的基本方程出发,应用检验分析方法推导了异常高压气藏开发物理模拟相似准则,分析了各相似准数的物理意义。在此基础上,分析与讨论某实际气田井组原型与模型之间参数换算,从而量化模型与原型的关系。从中可以看出,对于复杂物理问题,要完全满足所有相似准则是很难实现的;所以只能采用部分相似模拟,即在模拟中对主要的无量纲参数进行完全模拟,对次要相似参数进行放松。根据推导相似准则确定的模型与原型的换算关系,可以为异常高压气藏开发物理模拟提供理论依据和设计原则。In order to apply physical simulation results into gas fields and provide theoretical guidance for gas fields development project, on the basis of previous water-flooding reservoir studies, the similarity rules of physical simulation are deduced in the development of abnormal pressure gas reservoirs from the basic equation of two -phase gas and water gas reservoirs considering the characteristic of abnormal pressure gas reservoirs, then analyzed the physical significance of each similar rules. Based on these results, the conversion relationship of reservoir parameters and the model parameters was analysed and discussed so as to quantize the relationship between the prototype and the model. As can see, it is difficult to fully meet all the similarity criterion, and part of similar simulation was used. This means the main dimensionless parameters of the simulation were simulated, and the secondary similarity parameters were relaxed. The conversion relationship between the model and the prototype, according to the simi- larity criterion derived, can provide the theoretical basis and design principles for physical simulation in the development of abnormal pressure gas reservoir.

关 键 词：异常高压气藏 物理模拟 相似准数 相似理论 

分 类 号：TE312[石油与天然气工程—油气田开发工程]