摘要
Voronoi网格具有很强的灵活性和局部正交等特点,可以把局部细分网格与基本粗化网格有效地结合在一起,满足了油藏数值模拟技术对于大范围粗格化模拟、局部精细化描述的需要。对Voronoi网格的生成技术进行了分析和研究,提出了一种新的生成方法:把油藏区域按断层、井层、基层分层,针对不同层,采用不同的几何模型布点,最后采用间接法构造Voronoi网格。从计算几何的角度把层干扰归纳为点与点、点与线和线与线3类,并给出了相关的解决措施,重点对断层与垂直井、水平井的干扰进行处理。通过Voronoi网格化模型,验证了该算法的正确性和有效性。
Voronoi grid has the characteristics of strong flexibility and local orthogonal,the local refined grid and basic upscaling grid can be effectively integrated together,which meets the needs of reservoir numerical simulation applying in large-scale upscalling simulation and locally fine description.The generating technology of Voronoi grid is analyzed and studied,a new generation way is presented,i.e.,the reservoir area is divided based on faults,well intervals and basic layers,different geometric model dot is used to different layers,at last,Voronoi grid is constructed with indirect way.From the aspect of calculating geometry,the layers are grouped into dot to dot,dot to line and line to line,and the corresponding solution is given out,the key is placed on the interference of faults to vertical wells and horizontal wells.The validity of the algorithm is verified through Voronoi grid model.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第1期121-124,共4页
Journal of Southwest Petroleum University(Science & Technology Edition)
关键词
油藏数值模拟
Voronoi网格
几何模型
间接法
层干扰
reservoir numerical simulation
Voronoi grid
geometry model
indirect method
layer interference
