浅议储层地质研究中的CT技术

CT技术具有无损、三维并可与计算机应用模拟相结合等特点，使其在储层地质研究中作用独特。本文从CT技术特点入手，总结分析其在储层地质研究中的应用发展历程：储层岩石组构识别、储层表征、微观流体输运过程的在线监测及剩余油分布研究等。随着高分辨率工业CT及数字岩心技术的发展，CT扫描三维数据体与数字岩心相结合，不仅可以提取岩石物理属性参数，如储层岩石的孔渗、地层因子、弹性模量、横纵波分析等，建立三维孔喉网络模型，还可以直接对复杂的孔喉系统进行定量化的结构表征和微渗流数值模拟。最后，本文作出展望，随着计算机技术的提高和油气勘探需求的增长，其应用会越来精细，越来越广泛。

The Discussion on CT Technique Application in Reservoirs Geology

CT has the unique application in reservoir geology field due to its un-destructive, 3 D, combination with computational simulation and so on. Beginning with its character, this paper summarized the development of CT application in reservoir geology and pointed out CT could be used to component and fabric of reservoir rock, characterize reservoir, and monitor fluid transfer processed in pore system online and analysis the distribution of residual oil. With the development of high resolution industrial CT and digital core technology, the combination between 3 D data from CT and digital could not only help to compute petro physical properties, such as porosity-permeability, formation factor, elastic modulus, V_p & V_s, et al., but also quantitative characterize pore-throat structure and simulate percolation based on pore network. Finally, the paper gave a judgment on CT developing, which would be used in more fields, companying the improvement in computer application and exploration of oil and gas.