摘要
渗透率是岩石渗透性的数量表示,是表征油气水通过地层岩石流向井底的能力。油藏平均渗透率的确定对油田开发决策和经济效益有非常重要意义。常规计算油藏平均渗透率是用实验室的样品分析数据进行平均。对非均质性较强的低渗透和特低渗透油藏,渗透率取平均值往往会造成很大偏差,给油田开发决策带来不利影响。样品分析数据和油藏结合起来,考虑流动的连续性,合理取舍得到渗透率平均值才能真正反映油层的流动能力。
permeability is numeric representation of formation permeable capability,and a measurement of flowing of oil gas and water in well bottom through formation.Average formation permeability is important to oilfield development and economic benefit. Normal average permeability is calculated with the data of cores analysis of lab,which lead to great deviation for heterogeneous reservoirs of low and extra low permeability,and disadvantage effect.Combined with reservoir flow continuity and core analysis data,a reasonable average permeability can be calculated which can reflect fluid flow capability through formation.
出处
《新疆石油天然气》
CAS
2008年第3期56-58,共3页
Xinjiang Oil & Gas
关键词
非均质
低渗透
特低渗透
平均渗透率
计算
heterogeneous
low and extra low permeability
average permeability
calculation
