Seismic Attenuation for Reservoir Characterization. Final Report.

Walls, J. ; Taner, M. T. ; Derzhi, N. ; Mavko, G.

Technical Information Center Oak Ridge Tennessee

关键词: Seismic waves;    Energy absorption;    Attenutation;    Algorithms;    Detection;   

RP-ID  :  DE2004834365

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

We have developed and tested technology for a new type of direct hydrocarbon detection. The method uses inelastic rock properties to greatly enhance the sensitivity of surface seismic methods to the presence of oil and gas saturation. These methods include use of energy absorption, dispersion, and attenuation (Q) along with traditional seismic attributes like velocity, impedance, and AVO. Our approach is to combine three elements: (1) a synthesis of the latest rock physics understanding of how rock inelasticity is related to rock type, pore fluid types, and pore microstructure, (2) synthetic seismic modeling that will help identify the relative contributions of scattering and intrinsic inelasticity to apparent Q attributes, and (3) robust algorithms that extract relative wave attenuation attributes from seismic data.