基于单井控制储量与井网密度的老油田经济极限井网密度计算新方法  

Well pattern calculation method based on economic limit in old oilfields using well spacing and well-controlled reserves

作　　者：梁凇[1] 贾京坤[2] 杨航[3] 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆1633182 [2]中国石油大学(北京)地球科学学院,北京102249 [3]中国石油大学胜利学院石油工程系,山东东营257097

出　　处：《油气地质与采收率》2014年第4期104-106,118,共3页Petroleum Geology and Recovery Efficiency

摘　　要：随着油田开发程度的加深,加密井调整所产生的经济效益逐年变差,已开发老油田经济极限井网密度成为油田开发决策的关键指标。在传统井网密度计算方法的基础上,研究了胜利油区15个典型开发单元不同阶段加密井平均单井控制可采储量与井网密度的变化规律,建立了井网密度与阶段平均单井控制可采储量的关系,并结合单井控制经济极限可采储量的政策界限研究,提出了已开发老油田经济极限井网密度计算的新方法。应用新方法计算了特高含水期开发阶段胜坨油田二区沙一段油藏不同油价下经济极限井网密度,结果表明,在高油价下具有一定的加密潜力,并且随着油价的升高,井网加密的潜力也越大。As the oilfield development goes longer,the economic benefits generated by infill well become lower year by year.And the economic limit well pattern becomes the key factor for oilfield development decision making.Based on traditional well pattern calculation method,the well spacing and average well-controlled recoverable reserves of infill wells in 15 typical development units at different stages were studied,and the relationship between well spacing and well-controlled recoverable reserves were set up.Combining with the study of economic limit for well-controlled recoverable reserves,a new method to calculate the economic limit well pattern for old oilfields has been established.By using this new method to calculate the well pattern based on economic limit for No.2 district of Shengtuo oilfield under different oil prices,the results showed that it has potential for infill wells under high oil price,and the higher the oil price,the greater the potential for more infill wells.

关 键 词：加密井 经济极限 井网密度 单井控制可采储量 老油田 胜利油区 

分 类 号：TE319[石油与天然气工程—油气田开发工程]