摘要
胡尖山油田元72区延9油藏是鄂尔多斯盆地中生界延安组典型的低孔、中低渗岩性油藏,油藏开发中所表现出的非均质性主要受控于储层流动能力的变化。为此,从研究区延9油藏储层内渗流屏障类型、成因及分布研究入手明确了储层渗流能力变化的主要控制因素,结合生产测试资料建立表征储层渗流能力的主要物性、电性指标;在此基础上以生产测试资料为依据采用聚类分析方法对流动单元类型进行划分,并利用逐步判别方法建立了各类流动单元的判别模型;最后再对各井延9段流动单元类型进行划分的基础上通过连井剖面对比,开展了元72区延9油藏流动单元纵横向展布规律研究。取得的认识和研究成果为胡尖山油田元72区延9油藏的下一步开发调整和优化提供了基础,也为鄂尔多斯盆地类似油藏的开发提供了借鉴。
The oil reservoir in 9th Member of Yan'an Formation in Yuan 72 block,Hujianshan Oilfield,is a typical low porosity,low permeability lithology reservoir.Reservoir development demonstrated the heterogeneity of the reservoir was controlled mainly by the change of the reservoir flow capacity.Based on the research on type,genesis and distribution of reservoir seepage barrier,the main controlling factors of reservoir flow capacity was determined.Combined with production and test data,the main physical properties and electrical properties index to characterize the reservoir seepage capacity were established.Based on the production and test data,the seepage unit types were divided by using cluster analysis methods.The discrimination model of the various types of flow units was established by using stepwise discrimination analysis method.Finally,the research on vertical and horizontal distribution law of seepage units was carried out.These awareness and research results provided a reference for the development of similar reservoirs of the Ordos Basin.
出处
《钻采工艺》
CAS
北大核心
2012年第6期27-30,8,共4页
Drilling & Production Technology
基金
四川省教育厅人文社科重点研究基地项目"鄂尔多斯盆地岩性气藏储量综合评价方法及应用研究"(编号:川油气科SKZ07-01)资助
