面向采油工程规划的油井压裂效果预测方法研究

A new method of forecasting fracturing response for oil production program

针对常规油井压裂预测模型在采油工程规划预测中存在的不足,本文在渗流理论基础上,综合考虑相关地质参数,生产参数和工艺参数的影响,建立了面向采油工程规划的油井压裂效果预测模型。同时,在定压差生产情况下,对模型中的措施时机、压裂层含水率、压裂层有效厚度、裂缝导流能力、裂缝缝长等主要参数进行了敏感性分析。对大庆油田5口压裂油井应用结果表明:本模型满足采油工程规划需要,预测精度高,可信度大。

There are problems to use the conventional producer fracturing forecasting model to petroleum engineering planning. Based on filtration theory and with the comprehensive consideration of the relative geologic parameters, production parameters and technology parameters, the fracturing response forecasting model is established for petroleum engineering planning. The sensitivity analysis is carried out to main parameters, such as treatment occasions, water cut of the fracturing zone, effective thickness of the fracturing zone, fracture conductivity and fracture length, under constant pressure production. The application results of 5 fracturing producers in Daqing oilfield indicate ： this kind of model can meet the demand of petroleum engineering planning with high reliability and high accuracy.