双河油田井下地质知识库的建立

双河油田处于开发后期，只有对某储集砂体进行解剖，建立精细地质模型，才可能确定其剩余油田的分布状况。建立模型的基础工作是建立地质知识库。选择密井网进行解剖，利用岩心和测井曲线建立地质知识库，内容包括：一维的砂体密度、颜次、厚度、上下岩相；二维的砂体宽度（长度）宽厚比、对称系数、左右岩相，所建立的地质知识库只适于建立确定性模型。为了取得更为精确的预测结果，还应当采用随机建模技术．

FOUNDING SUBSURFACE GEOLOGICAL DATA BANK FOR SHUANGHE OIL FIELD

Shuanghe oil field is at late development stage. Only by interpreting the reservoir sand body and founding fine geologic modelcan we determine the distribution state of remaining oil. The geological data bank is the base of reservoir geological model.Infill well patterns are chosen to research carefully in this paper, and geological data bank is founded by using core and welllogging curves. It includes 1D sand body density, frequency, thickness, up and down lithofacies; 2D sand body width(length), the ratio of width to length, symmetrical coefficient, left and right lithofacies. The geological data bank in thispaper is only suited to fouriding definite model. To obtain more accurate predictable results, the stochastic modelingtechniques must be adopted.