关键词: 单一河道砂体, 井间边界, 波阻抗反演, 骨架模型, 加密钻井, 水平井设计, 三维油藏模型

Abstract: The modeling method and procedures for single channel sandbody framework suitable for oilfield development in the early stage after drilling first batch development wells were discussed.The modeling methods include detailed reservoir correlation,identifying of single sandbody and determination of inter-well boundary by integrating data of geology,electric logging and acoustic impedance inversion.The quantitative geological parameters,such as width of single-channel sand,ration of width to thickness,were extracted.Compared with the results from well test interpretation and outcrop study with similar depositional characteristics,the single channel framework model is valid.This framework model was successfully used to drill of a new infilling development well.A 3-D reservoir model was developed on the basis of the framework model and further utilized to optimize the design of horizontal well.The predicted channel sandbody was penetrated with the encountering channel sand rate of 84.7% in the horizontal section.

Key words: single-channel sandbody, inter-well boundary, seismic acoustic impedance inversion, framework model, infilling drilling, horizontal well design, 3-D reservoir model