摘要
提出了一种描述低渗透油藏渗流的连续模型,并推导出了基于该模型的等产量-源-汇平面径向稳定渗流油水井间压力和压力梯度分布计算模型。以江汉油区黄场油田潜江组4段第3小层(Eq34)低渗透储层为例,应用Matlab软件进行基于岩心渗流试验数据的模型参数拟合,通过模型计算,绘制了研究区油水井间地层压力及压力梯度分布曲线,论证了建立正常驱替关系的条件。研究制定了低渗透储层油井产量、渗透率和合理井距之间的关系图版,并取得了良好的实践效果,为低渗透油藏开发技术政策分析研究提供了新的分析方法。
A continuous model to describe the seepage in low permeability reservoir was presented in this paper.Based on this model,a calculation model for the distribution of pressure gradient and pressure between production well and injection well of stable radial flow of one-source and one-congruence was deduced.The model parameters based on core flow experiment data were fitted through Matlab in Eq34 low permeability reservoir of Huangchang Oilfield of Jianghan Region.The distribution curves of formation pressure and pressure gradient between production well and injection well in the study area were drawn and the conditions for establishing the relationship of displacement were demonstrated through the model calculation.The relation charts of production,permeability as well as rational well spacing in low permeability reservoir is established.These charts obtain favorable practice effect and provide the new analysis method for the research of development technology policy in the low permeability reservoir.
出处
《长江大学学报（自科版）（中旬）》
2016年第2期67-70,7,共4页
Journal of Yangtze University(Nature Science Edition)
基金
国家科技重大专项(2011ZX05010-002)
关键词
低渗透油藏
非线性渗流
数学模型
技术政策
low permeability reservoir
nonlinear flow
mathematical model
technology policy
