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雍学善,余建平,石兰亭.一种三维高精度储层参数反演方法.石油地球物理勘探,1997,32(6):852~856本文运用正、反演结合的最优化算法,首先建立并点处的波阻抗模型;再进行地质层位的三维精细对比及追踪;然后进行井点波阻抗模型引导的、地质层位约束的、面元控制的三维自适应外推反演,得到三维高精度波阻抗数据体;最后结合测井、地质、钻井、岩心分析等资料反演出速度、密度、孔隙率等三维储层参数数据体,并输出储层参数时间切片、沿层切片以及储层的速度、孔隙率、累计厚度、有效厚度等储层参数平面图。所得结果标定准确、垂向分辨率高达2~6m、纵横向变化合理,为滚动勘探开发过程中的储层精细预测提供了可靠依据。
Yong Xue Shan, Yu Jianping, Shi Lanting. A 3D inversion method of reservoir parameters. Petroleum Geophysical Prospecting, 1997,32 (6): 852 ~ 856 In this paper, we use the combination of positive and inversion to optimize the wave impedance model. Then, the three-dimensional fine contrast and tracing of the geological horizon are established. Then, Dimensional well-impedance extrapolated inversion based on well-point wave impedance model and geologic horizon constraint and bin-element control to obtain three-dimensional high-precision wave impedance data body. Finally, combining the data of well logging, geology, drilling and core analysis Performance velocity, density, porosity and other three-dimensional reservoir parameters of the data body, and output reservoir parameters of time slices, along the slice and reservoir velocity, porosity, cumulative thickness, effective thickness and other reservoir parameters plan. The calibration results are accurate, the vertical resolution is up to 2 ~ 6m, the vertical and horizontal changes are reasonable, which provides a reliable basis for the fine prediction of reservoirs during rolling exploration and development.