水平井流入动态综合分析与应用

The Comprehensive Analysis and Study about Inflow Performance Relationship of Horizontal Wells

本文综合分析研究水平井流入动态,包括油水两相流、油气两相流、油气水三相流流入动态研究。用各相渗透率替换绝对渗透率来修正单相流水平井产能公式,使用修正后的产能公式计算油水两相流流入动态关系;以数值模拟方法回归得到的溶解气驱水平井流入动态方程为基础,着重分析研究油藏压力高于饱和压力时的溶解气驱水平井流入动态;用Petrobras关于垂直井油气水三相流流入动态的研究思路来研究水平井油气水三相流流入动态关系。

This paper analyzes and studies comprehensively the inflow performance relationship of horizontal wells, including the two phase flow of oil and water , the two phase flow of oil and gas and the three phase flow of oil, gas and water . This work amends the productivity formula of single phase flow by using every phase permeability replacing relative permeability, then uses the amendatory capacity formula to calculate the inflow performance relationship of the two phase flow of oil and water ; based on dynamic equations of dissolved gas drive reservoirs of horizontal wells by numerical simulation, the inflow performance relationships of dissolved gas drive reservoirs with reservoir pressure higher than the saturation pressure is studied ; according to the methods about the inflow performance relationships of the vertical wells of Petrobras , the inflow performance relationships of the three phase flow of oil, gas and water of horizontal wells is also studied.