大庆油田三元复合驱层系优化组合技术经济界限  

TECHNICAL AND ECONOMIC LIMITS FOR THE OPTIMIZATION AND COMBINATION OF ASP SERIES OF THE STRATA IN DAQING OILFIELD

作　　者：方艳君[1] 孙洪国[1] 侠利华[1] 张雪玲[1] 姜祥成[1] 王天智[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2016年第2期81-85,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油天然气股份有限公司重大科技专项"大庆油田原油4000万吨持续稳产关键技术研究"(2008E-1206)

摘　　要：三元复合驱已经成为大庆油田持续稳产的主要接替技术,为了满足其工业化推广的要求,需进一步明确一、二类油层剩余潜力及层系组合方法。三元复合驱与聚合物驱相比具有提高采收率大、投入高的特点,加之目前一、二类油层处于"双特高"开发阶段,剩余油少且分散,为了保证三元复合驱的开发效果和经济效益,首次将剩余储量丰度作为衡量层系组合合理性的指标,并建立了数学模型,根据实际开发情况建立了经济界限图版;依据油藏工程理论和井筒多相管流理论,推导出了均质多层油藏油井总产量与层系组合跨度之间的数学模型,结合数值模拟研究确定了大庆油田一、二类油层层系组合跨度经济界限;另外,综合多种研究手段研究确定了层系组合厚度下限、渗透率级差以及隔层经济界限指标。ASP flooding has become the main successor technology of the sustainable production of Daqing Oilfield. In order to meet the requirements of the industrialized generalization,it is needed to further clarify the potential remained reserves and series combination of Class I and II Reservoirs. Compared with the polymer flooding,ASP flooding has the characteristics of higher recovery factor and larger input. And moreover the reservoirs are at the 'double super high'development stage,the remained oil is less and more dispersed,in order to ensure the development effects and economic efficiency of the ASP flooding,the abundance of remained reserves is first regarded as the index of judging the rationality of the combination,and at the same time,the mathematic model is built,and moreover according to the actual development conditions,the economic-limit chart board is established; by means of reservoir engineering principles and borehole multi-phase conduit flow theory,the mathematic model between the total production and series combination span is deduced for the oil wells in the homogenous multi-layer reservoirs,and furthermore integrating with the achievements of the numerical simulation,the economic limit of the combined span is determined for Class I and II Reservoirs in Daqing Oilfield; in addition,combining with many study approaches and methods,the following indexes such as the thickness limit of the series combination,permeability differential and economic abundance of the barrier are determined.

关 键 词：三元复合驱 层系组合 技术经济界限 剩余储量丰度 组合跨度 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]