CAJ | 학술논문

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.
Voronoi망격구유흔강적령활성화국부정교등특점,가이파국부세분망격여기본조화망격유효지결합재일기,만족료유장수치모의기술대우대범위조격화모의、국부정세화묘술적수요.대Voronoi망격적생성기술진행료분석화연구,제출료일충신적생성방법:파유장구역안단층、정층、기층분층,침대불동층,채용불동적궤하모형포점,최후채용간접법구조Voronoi망격.종계산궤하적각도파층간우귀납위점여점、점여선화선여선3류,병급출료상관적해결조시,중점대단층여수직정、수평정적간우진행처리.통과Voronoi망격화모형,험증료해산법적정학성화유효성.
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.