摘要
对求解广义径向不定常渗流的瞬时点汇模型给出了一种包括了经典的平面单向、平面径向和空间球形三种渗流方式的压力降落探测半径综合表达式;通过求解非牛顿幂率流体拟稳态渗流数学模型,得到了井壁压力晚期渐近公式,导出新的非牛顿幂率流体径向渗流的压降探测半径计算公式,该公式比已有的结果更具有合理性;最后阐述了Peaceman压力恢复探测半径的计算公式。
A general formula of drawdown radius-of-Investigation including typical linear flow,radial flow and spherical flow is presented firstly based on the solution to the problem of general radial flows with a transient point sink.Secondly,an improved formula of drawdown radius-of-Investigation for a non-Newtonian power-low fluid is obtained in terms of the new solution to the model of the fluid pseudo-steady state flow.At last,Peaceman's buildup radius-of-Investigation formula is introduced.
出处
《油气井测试》
2007年第2期1-3,共3页
Well Testing
关键词
探测半径
试井分析
非牛顿幂率流体
压力降落
压力恢复
radius of investigation,well test analysis,non-newtonian power low fluid,draw down,build up
