Application of Wavelet Analysis in Identification of Tight Sandstone Gas Reservoirs
Shi Yujiang
Pan Baozhi
Jiang Bici
Zhang Haitao
Yang Xiaoming
Guo Yuhang
Liu Dan
Abstract：With the characteristics such as low porosity,low permeability,strong heterogeneity,tight sandstone,and complex-logging response of tight sandstone reservoirs,the gas identification and evaluation are difficult with multiple solutions.The peak energy and a weighted cumulative quantitative are applied in the paper to analyze features of multi-scale wavelet and wave-let packet analysis based on three-water model,cores,geological and gas test data in tight sandstone gas reservoirs.Then the appropriate method of multi-scale wavelet energy spectrum of tight sandstone gas reservoirsis selected to identify tight sand-stone gas in Sulige region,which achieved good effect.
Keywords：three-water modelwavelet packet analysismulti-scale wavelet analysissliding window analysistight sandstoneSulige areaenergy-weighted cumulativegeophysics
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 2127-2135 )