大庆石油地质与开发2012，Vol.31Issue(1)：75-79,5.DOI:10.3969/J.ISSN.1000-3754.2012.01.015
特低渗透油藏三维三相非线性渗流数值模拟器研制与应用
DEVELOPMENT AND APPLICATION OF 3D THREE-PHASE NON-LINEAR FLOW NUMERICAL SIMULATOR FOR ULTRA-LOW PERMEABILITYOIL RESERVOIR
摘要
Abstract
A non-linear flow mathematical model is established according to the fluid flow characteristics in ultra-low permeability oil reservoir. The non-linear flow numerical stimulator is developed based on black-oil model. Taking a five-spot well pattern unit as example, and the comparative analysis between different types of non-linear flow curves and the results of Darcy flow simulation is conducted. The simulation results show that comparing with Darcy flow and considering non-linear flow, for non-linear flow, the low oil production, rapid production decline, low-efficiency water-displacement and lagged injection response are obvious; of producing wells and water propulsion speeds along vertical direction of artificial fracture are slow; and moreover, water absorbing capacity of the injectors is poorer, the advance speed along vertical fractures becomes slower; under the condition of the same injection-production pressure difference, waterflood results are rather imperfect; the shut-up pressure area near the injectors is pretty large, more driving energy is exhausted for the fluids flowing in the formation, so the waterflood efficiency is reduced; in the course of oil-permeability oil reservoir development, except larger formation pressure gradient near the bole hole, the gradient in most part of the formation is rather lower, non-linear flow plays dominant role. Based on the laws .of non-linear flow, the developed numerical simulation software can more accurately predict the dynamic characteristics of ultra-low permeability oil reservoir development.关键词
特低渗透/非线性渗流/数学模型/数值模拟/压力梯度Key words
ultra-low permeability/ non-linear flow/ mathematical model/ numerical simulation/ pressure gradient分类
能源科技引用本文复制引用
于荣泽,卞亚南,王凯军,杨正明,姜瑞忠..特低渗透油藏三维三相非线性渗流数值模拟器研制与应用[J].大庆石油地质与开发,2012,31(1):75-79,5.基金项目
国家自然科学基金(10672187)和中国石油天然气股份公司重点科技攻关项目(06-02A-02-01). （10672187）
