关键词: 幅度差,    , 重构反演,    ,  河道,    ,  沉积微相,    ,  大庆长垣

Abstract: Dairying placanticline has already entered extremely high water cut period, transition zone have been brought into sharp focus as the potential reserve area. Since the transition zone has a problem of the large amplitude of structure, thin reservoir and complex sedimentary environment, conventional reservoir interpretation method is difficult to satisfy the requirement of accuracy. In order to solve this problem, the method of using the method of reconstructing separation with micro electrode resistivity curve and microspheres was proposeed, and a set of suitable for the technical flow transition zone in the oil field of fluvial facies reservoir prediction has been established. Development of X in Daqing oilfield as an example, through the processing method of dimension, the absolute difference and the amplitude difference of homogenization, the process of logging curve reconstruction in the study area was achieved, and through four key link of inversion, amplitude difference reconstruction inversion in the study area was completed. Confirmed by drilling, basing on the amplitude difference seismic reconstruction inversion to predict drilling coincidence rate is higher. Combining with well drilling in development zone and seismic attributes, II sedimentary microfacies of main sedimentary unit of oil in the study area S was realized. Comprehensive studies have shown that, this method is high precision to predict river, and can be used as a effective method for prediction of oilfield transition zone channel.

Key words: Amplitude difference,    ,  Reconstruction inversion,    ,  Channel,     ,  Sedimentary facies,   ,  Daqing placanticline