高含水期海上稠油砂岩油藏剩余油敏感性研究及分布表征  

RESEARCH AND DISTRIBUTION CHARACTERIZATION ON REMAINING OIL SENSIBILITY OF THE OFFSHORE SANDSTONE OF HEAVY OIL RESERVOIR IN-HIGH-WATER-CUT STAGE

作　　者：石立华 康恺[2] 王乔[3] 王建军[4] 

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,陕西西安710075 [2]玉门油田钻采工程研究院,甘肃酒泉735000 [3]贵州省煤田地质局地质勘查研究院,贵州贵阳550081 [4]陕西延长油田股份有限公司永宁采油厂,陕西延安716000

出　　处：《新疆石油天然气》2013年第3期39-42,6,共4页Xinjiang Oil & Gas

基　　金：国家科技重大专项"稠油砂岩油藏开发中后期剩余油分布规律研究"(2008ZX05024-04-012)

摘　　要：以秦皇岛32-6油田为研究对象,综合考虑了该开发单元储层物性和原油性质不同开发阶段对剩余油的影响。利用单因素分析方法,建立了该开发单元剩余油随原油粘度、油层厚度、纵向非均质性、井距、采液速度、提液时机变化的数值模型,并在此基础上进行了精细油藏数值模拟研究。通过分析对比不同模型的模拟结果可知,不同条件下影响剩余油的主控因素不同。其中,纵向非均质性对剩余油的影响最显著,其次是原油粘度和采液速度,提液时机、油层厚度和井距的影响较小。另外,对各影响因素进行了无因次化,通过多元线性回归,得出了不同地质、流体物性、开发等因素下剩余油非均质程度的相关式,对该单元开发调整方案的设计和实施起到了指导作用。This paper takes research on the influence on remaining oil of reservoir characteristics and crude properties with the expoitation time according to the state of QHD32-6 oilfield and establishes a numerical model about the remaining oil in this development block affected by viscosity of crude oil,layer thickness,heterogeneity about vertical permeability character,well spacing,liquid production rate,time of liquid enhancement,and conducts theory study on numerical reservoir simulation.Conclusions that the main factors affecting the remaining oil are different are drawn from results in the field.The most considerable factor is the heterogeneity of vertical permeability,then the viscosity of crude oil and the liquid production rate;while the layer thicknes,liquid enhancement and well space affect little.Moreover,the mode about geologic factor,fluid feature,development approach and the remaining oil is obtained by multi-linear regression after getting dimensionless different factors,and the research results are successfully applied to design and realization of a plan for improving recovery of the unit.

关 键 词：海上油田 油藏数值模拟 敏感性因素 剩余油非均质程度 秦皇岛32—6油田 

分 类 号：TE327[石油与天然气工程—油气田开发工程]