优势渗流通道对油藏生产动态影响的精细数值模拟研究  

A refined numerical simulation of impacts of preferential seepage channels upon reservoir production performance

作　　者：吴应川[1] 任玉林[1] 姜汉桥[2] 陈民锋[2] 

机构地区：[1]中国石化石油勘探开发研究院 [2]中国石油大学(北京)

出　　处：《中国海上油气》2008年第6期392-394,共3页China Offshore Oil and Gas

摘　　要：基于Voronoi网格的精细油藏数值模拟软件VGRNS3D,对油藏中优势渗流通道进行了详细刻划和描述,并在此基础上对优势渗流通道区域形态、距生产井的距离对油藏生产动态的影响进行了研究,结果表明:对于衰竭开采方式,在定液生产及地层压降相同的条件下,优势渗流通道延伸方向平行于主流线方向或优势渗流通道区域距生产井越近,油藏的采出程度越高;对于注水开采方式,在定液生产及注入倍数相同的条件下,优势渗流通道延伸方向平行于主流线方向或优势渗流通道区域距注水井越近,油藏的采出程度越低。The preferential seepage channels in an oil reservoir are delineated and described in detail on a basis of VGRNS3D, a refined numerical reservoir simulation software with Voronoi grid, by which the impacts of geometry and distance to pro ducing wells of a preferential seepage channel zone on reservoir production performance are researched. According to the results, for a natural depletion recovery, the preferential seepage channels may parallel to the main stream line, or the closer a preferential seepage channel zone away from a production well, the higher the depletion degree of a reservoir, under a condition of settled production and constant pressure drawdown. For a water injection recovery, the preferential seepage channels may parallel to the main stream line, or the closer a preferential seepage channel zone away from a water-injection well, the lower the depletion degree of a reservoir, under a condition of settled production and constant injection volume.

关 键 词：优势渗流通道 延伸方向 距井距离 油藏 生产动态 精细数值模拟 VGRNS3D软件 

分 类 号：TE319[石油与天然气工程—油气田开发工程] TV223.4[水利工程—水工结构工程]