靖边古潜台东侧气田气藏产能评价方法研究

Productivity evaluating methods for gas reservoir in eastern part of Jingbian Paleozoic buried platform gas field

张修明 李晓平 张健涛 杨琳

Zhang Xiuming Li Xiaoping Zhang Jiantao Yang Lin

油气藏地质及开发工程国家重点实验室。西南石油大学, 四川成都 610500; 中国石油川庆钻探地质勘探开发研究院, 四川成都 610051

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University, Chengdu 610500; Geological Exploration Research Institute of Sichuan-Changqing Drilling Company, CNPC, Chengdu 610051

目前的产能评价方法基本都是针对气井而言的, 这些方法为我们了解单井的产能提供了依据。为了更好的从宏观上掌握产能大小, 有必要针对整个气藏(或区块)进行产能评价, 这样就能够在开发气藏时有一整体认识。从气井基本渗流方程出发, 在分析气井产能评价理论的基础上, 得出三种不同的气藏产能评价方法。然后以靖边东侧气田气藏某区块为例, 分别应用这些方法进行产能评价, 并优选出适合该区块的方法。最后阐述了如何对新井进行快速产能评价。

At present,all the productivity evaluating methods are only used for gas well.In order to know the potential of the whole reservoir it is very necessary to evaluate the capacity of the whole gas reservoir.This article starts from the basic filtering flow equation,then analyses the gas well deliverability evaluating theory,and finally finds out three capacity evaluating approaches for the gas reservoir.Afterwards,taking the east Jingbian Paleozoic buried platform gas reservoir as an example above mentioned three methods were used to analyze its productivity respectively.In the end,how to evaluate the productivity of newly drilling well was explained based on the method presented in this paper.

https://doi.org/10.3969/j.issn.1008-2336.2009.02.013