低渗非达西渗流调查半径计算方法  

Investigation Radius Calculation of Non-Darcy Flow in Low Permeability Media

作　　者：王新海[1] 秦世勇[2] 刘洪[3] 阮洋[2] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学),湖北荆州434023 [2]塔里木油田分公司,新疆库尔勒841000 [3]长江大学地球科学学院,湖北荆州434023

出　　处：《石油天然气学报》2008年第5期134-136,共3页Journal of Oil and Gas Technology

基　　金：中国石油天然气集团公司石油科技中青年创新基金项目(05E7046)

摘　　要：科学开发低渗透油气田是中国石油工业发展的重要战略方向之一。要开发好低渗透油气田,首先应正确认识其储层特征和渗流规律,正确地进行渗流力学计算,制定合理的开发方案。调查半径有若干个用途,帮助解释压力恢复或压力降落曲线的形状,并可以利用调查半径来估计测试到所要求的地层范围需要的时间。从低渗非达西渗流流动方程出发,利用稳态依次替换法得到了求解低渗非达西渗流调查半径计算方法。Developing low permeability oil and gas field scientifically was one of the important strategies of the development of China's petroleum industry.To effectively develop low permeability oil and gas field,the reservoir characteristics and seepage flow law should be correctly understood,then seepage mechanic should be calculated correctly and a reasonable plan was made.Investigation radius was widely used for explaining the curve shape of pressure buildup and pressure drop,and it also could be used for estimating the test time when required stratum range was reached.Based on the flow equation of non-Darcy flow in low permeability media,the investigation radius calculation of non-Darcy flow in low permeability media is gained by using the method of steady state successive displacement.

关 键 词：低渗非达西渗流 调查半径 稳态依次替换法 启动压力梯度 

分 类 号：TE311[石油与天然气工程—油气田开发工程]