大庆油田二类油层三次采油开发次序研究  

Tertiary Oil Recovery Sequence for the Class-II Reservoirs in Daqing Oilfield

作　　者：张雪玲[1] 冯程程[1] 孙洪国[1] Zhang Xueling;Feng Chengcheng;Sun Hongguo(PetroChina Daqing Oilfield Company,Ltd,Daqing,Heilongjiang 163712,China)

机构地区：[1]中国石油大庆油田有限责任公司

出　　处：《特种油气藏》2019年第5期81-85,共5页Special Oil & Gas Reservoirs

基　　金：中国石油天然气股份有限公司重大科技专项“大庆油气持续有效发展关键技术研究与应用”(2016E-0210)

摘　　要：针对大庆油田二类油层三次采油潜力层系的接替次序和投产时机影响因素复杂的问题,利用数理统计和油藏工程原理建立了油层综合评价模型和含水界限模型,给出了层系纵向接替次序和投产时机确定方法。结果表明:对于潜力层系,考虑三大类12项评价参数,通过权重和综合评价模型计算,可以定量分析各套层系的优劣,以此作为层系间接替的依据;对于已开发层系,根据盈亏平衡原理,结合开发指标预测结果,可以确定区块到达含水界限的时间,以此作为区块间衔接的顺序。应用结果表明,"十三五"期间,确定接替层系31套,增加可采储量180×10^4t。该方法系统全面考虑油层状况,兼顾开发效益最大化,减少人为因素干扰,为开发规划方案编制和现场产量接替运行提供有力的技术支撑。In order to determine the reasonable replacement sequence and production timing of the layers with high tertiary recovery potential in the Class-II reservoirs of Daqing Oilfield,mathematical statistics and reservoir engineering were used to establish a reservoir comprehensive evaluation model and a water-cut boundary model,which could determine the longitudinal layer replacement sequence and production timing.Result indicates that 3 categories with 12 evaluation parameters were taken into consideration for the potential layers.The weight and comprehensive evaluation models can be used to quantitatively evaluate different stratum series,which is taken as the basis in layer replacement.For the developed layers,the period to reach water-cut boundary can be gained according to the break-even principle and development indicator prediction,which is taken as the basis in block replacement.Field application determines 31 stratum series during the "13th Five-Year Plan" period,which increases the recoverable reserve by 180×10^4 t.This method systematically considers the layer properties,maximum development benefit and minimum interference of human factors,which could provide a powerful technical support for the preparing of development-planning programs and field production replacement.

关 键 词：二类油层 三次采油 开发次序 油层评价 层系接替 大庆油田 

分 类 号：TE357[石油与天然气工程—油气田开发工程]