新疆石油地质 ›› 2008, Vol. 29 ›› Issue (1): 85-87.

• 油藏工程 • 上一篇    下一篇

低渗透油藏不稳定渗流压力动态分析

修乃岭, 熊伟, 高树生, 于忠良, 孙玉平, 王学武, 杨前雄   

  1. 中国科学院渗流流体力学研究所, 河北廊坊065007
  • 收稿日期:2007-03-27 发布日期:2020-08-10
  • 作者简介:修乃岭(1981-), 男, 河北邢台人, 在读硕士研究生, 油气田开发,(Tel) 13903162947(E-mail) xiunailing@163.com.
  • 基金资助:
    国家“973”项目, 碳酸盐岩缝洞型油藏开发基础研究(2006CB202404)资助

Performance Analysis of Transient Pressure in Low Permeability Reservoir

XIU Nai-ling, XIONG Wei, GAO Shu-sheng, YU Zhong-liang, SUN Yu-ping, WANG Xue-wu, YANG Qian-xiong   

  1. Institute of Porous flow and Fluid Mechanics, CAS, Langfang, Hebei 065007, China
  • Received:2007-03-27 Published:2020-08-10

摘要: 由于低渗透油藏不稳定渗流是一个含动边界的非线性渗流问题, 要求得其精确解析解非常困难, 因而压力传导方程的近似求解对于低渗透油藏弹性不稳定渗流问题非常重要。为简化计算, 利用油藏压力分布近似表达式, 研究了低渗透油藏不稳定渗流压力分布特征; 利用物质平衡原理, 得到了动边界的运动规律; 最后计算了井底压力变化规律。

关键词: 低渗透油气藏, 压力梯度, 动边界, 不稳定流动

Abstract: The unsteady flow in low permeability reservoir is a non-linear problem with dynamic boundary, so it is extremely complex to find exact solution. In order to simplify the calculation, an approximate equation for reservoir pressure distribution is used to study the transient pressure distribution characteristics followed by obtaining the movement rule of dynamic boundary using material balance principle. Finally, the varied bottom-hole pressure is calculated.

Key words: low permeability reservoir, pressure gradient, dynamic boundary, unsteady flow

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