【摘要】 合理井网密度的确定是低渗透油田开发的一个重要问题.利用谢尔卡乔夫的采收率与井网密度关系式,推得了单井可采储量、可采期的单井效益和单位面积总效益随井网密度变化的关系式.以单位面积总效益最大化为准则推得了合理井网密度及其对应的采收率、单井可采储量、可采期的单井效益和最大单位面积总效益,同时求出了经济极限井网密度.讨论了原油价格变化对合理井网密度及其对应的单井可采储量、可采期的单井效益和最大单位面积总效益的影响.油田应用实例表明,该方法对于低渗透油田开发方案和开发调整方案的经济技术论证有较好的指导作用.更多还原

【Abstract】 The determination of the reasonable well pattern density is very important to the development of low permeability reservoirs. The relationships between recoverable reserves of single-well,the benefit of single-well and the benefit of unit area in recoverable period and well pattern density are derived by means of the relationship between recovery factor and well pattern density. The reasonable well pattern density and the corresponding recovery factor, recoverable reserves of single-well,benefit of single-well and the maximum benefit of unit area in recoverable period under the maximum benefit of unit area are obtained. Economical limited well pattern is also gained. The effects of oil price on reasonable well pattern density and the corresponding recoverable reserves of single-well,benefit of single-well and the maximum benefit of unit area in recoverable period are discussed. A case shows that this method can guide the formulation and adjustment of the development plan of low permeability reservoirs.更多还原