Application of S transformation method in thin reservoir description
PENG Li-juan
Abstract：Aiming at the current situation that the the boundary identification precision of thin reservoir is not high and the anastomosis degree of reservoir oiliness prediction is lower, the S transformation method was introduced. The S transformation could combine the advantages of short-time window Fourier transform and wavelet transform,and the adaptive sampling method was adopted for the seismic signals. The obtained single frequency information is more accurate,which could solve the problems existing in the thin reservoir description more effectively. The main ES3 thin oil reservoir sand body in Caoqiao oilfield was described with the S transformation frequency decomposition and absorption attenuation nature. The results show that the proposed method can accurately determine the main overlap boundary of sand body,provide an efficient prediction of oiliness,develop the comprehensive evaluation through combining with the real drilling, and obtain good effect of rolling exploration and development.
Keywords：thin reservoiroilinessS transformationdescriptionoverlapfrequency decompositionabsorption attenuationhigh light body
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 168-173 )