油气藏储层流体渗流理论表征新参数——流度梯度的实验研究  

A NEW CHARACTERIZING PARAMETER OF THE FLOW SEEPAGE THEORY FOR PETROLEUM RESERVOIR FLUIDS --EXPERIMENTAL STUDY ON THE MOBILITY GRADIENT

作　　者：李武广[1] 杨胜来[1] 赵记臣[2] 阳晓燕 陈蒙[1] 

机构地区：[1]中国石油大学石油工程教育部重点实验室,北京102249 [2]中国石化集团国际石油勘探开发有限公司,北京100029 [3]中海石油有限公司天津分公司,天津塘沽300452

出　　处：《大庆石油地质与开发》2012年第4期69-72,共4页Petroleum Geology & Oilfield Development in Daqing

摘　　要：渗流理论是流体在储层中的动态描述，流动能力大小直接影响油气开采、油田产量、最终采收率以及经济效益等。如何有效准确地表征储层流体的渗流特征，一直是油气开发学家们探讨的问题。目前能够表征油气渗流的参数很多，但每一种方法都有其优缺点。在长期的科研实践中，首次提出了油气渗流理论的表征新参数——流度梯度，该参数能够比较全面、真实、准确地表征油气渗流能力大小、黏度场分布情况。计算方法简便，在实际应用中取得比较好的效果，能够为油气田高效开发提供一定的理论指导，也对深入了’解油气藏开发动态和提高采收率具有重要的现实意义。Seepage flow theory characterizes the dynamic description of reservoir fluids, the flowing ability directly affects the petroleum exploitation, production rate, ultimate recovery, economic efficiency and so on. How to accurately and effectively characterize the features of reservoir fluids is a lasting issue widely discussed by petroleum development experts. Currently, there are a plenty of parameters describing oil and gas seepage flows, but each of them has its own pros and cons. In the practice of long-term scientific researches, a new parameter called mobility gradient is put forward to characterize the theory of oil and gas seepage flow. The parameter can relatively comprehensively, realisticly and accurately characterize the multitude of the flowing ability and the distribution of the viscosity field. The method is pretty simple and furthermore much better results are obtained in the application of theactual practice： a certain theoretical guidance can be provided for the high-efficiency development of oil and gas fields, and moreover the achievements of the above possess important realistic significances for the further understandings of petroleum development performances and enhancing the recovery.

关 键 词：储层流体 流度梯度 渗流理论 有效渗透率 黏度 

分 类 号：TE312[石油与天然气工程—油气田开发工程]