“地质网格”技术在复杂断块油藏地质建模中的应用  

Geological grid technology for 3Dgeology modeling in complex fault-block reservoirs

作　　者：徐芳[1] 张文旗[1] 李菊红 何淑梅[3] 刘天鹤[3] 

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]帕拉代姆技术(北京)有限公司,北京100004 [3]中国石油大港油田分公司勘探开发研究院,天津300280

出　　处：《石油地球物理勘探》2013年第A01期75-81,202+7-8,共7页Oil Geophysical Prospecting

摘　　要：符合客观实际的三维地质模型是油藏地质研究的最终成果,而目前常用的建模软件及其数学算法在构建复杂构造模型和强非均质储集层模型时存在局限性。本文以大港油田C区Z断块为例,利用"地质网格"技术避免了常规PILLAR网格系统在建立构造模型时遇到的网格扭曲现象,确保了构造的完整性和准确性;应用相控多变差函数分析技术弥补了单一变差函数无法准确表征储层空间分布状况及物性变化特征的缺憾,较好地解决了沉积微相变化快、储层非均质性强等问题,为油田勘探开发部署提供了更符合客观实际的精细地质模型。3Dgeological model is one of the reservoir geology study final results.However,there are many limitations in establishing an accurate complex structural model and properties model of strong heterogeneity reservoir using common modeling softwares and mathematical algorithms.In this paper,we propose geological grid approach for structural model.This approach is used in Z fault block of Dagang Oilfield.This approach has no grid distortions as the conventional PILLAR grid system has.Moreover,it ensures structure completeness and accuracy.Using facies-controlled multi-variogram analysis,reservoir spatial distribution and physical changes are accurately characterized. Therefore,fast micro-faices change and strong heterogeneity in reservoirs are well described.And a more realistic reservoir geological model is provided for future oilfield development.

关 键 词：“地质网格”技术 油藏地质模型 PILLAR网格 多变差函数分析 复杂构造模型 非均质性 

分 类 号：P631[天文地球—地质矿产勘探]