Fault Delineation using Spectral Decomposition of Relative Acoustic Impedance Data and RGB Blending

2019 ◽  
Author(s):  
Vikas Saluja ◽  
Uday Singh ◽  
Aninda Ghosh ◽  
Puja Prakash ◽  
Ravendra Kumar ◽  
...  
Keyword(s):  
Acoustic Impedance ◽  
Spectral Decomposition ◽  
Impedance Data

Using Acoustic Impedance Data for Tabu Field Subsurface Mapping and Reservoir Characterization

2008 ◽  
Author(s):  
Fariz Fahmi ◽  
Yue Choong Lye ◽  
Azlina Ahmad Termizi ◽  
Dave Walley and Aniza Yaakob
Keyword(s):  
Acoustic Impedance ◽  
Reservoir Characterization ◽  
Impedance Data ◽  
Subsurface Mapping

scholarly journals Analysis of Channels Using Acoustic Impedance and Spectral Decomposition within Cenomanian–Turonian Reservoir in Iran

2014 ◽  
Author(s):  
M.S. Mirkamali ◽  
N. Shad Manaman ◽  
I. Abdollahie Fard ◽  
N. Keshavarz Farajkhah ◽  
H. Khoshdel ◽  
...  
Keyword(s):  
Acoustic Impedance ◽  
Spectral Decomposition

JOINT IMPEDANCE INVERSION AND SPECTRAL DECOMPOSITION FOR DEEPWATER GAS RESERVOIR CHARACTERIZATION: A CASE STUDY IN SOUTH CHINA SEA

2020 ◽  
pp. 1-74
Author(s):  
Yaneng Luo ◽  
Mengqi Jiang ◽  
Kun Xiang ◽  
Yadi Yang ◽  
Handong Huang
Keyword(s):  
Spatial Distribution ◽  
Acoustic Impedance ◽  
Spectral Decomposition ◽  
Reservoir Characterization ◽  
Well Log ◽  
Gas Reservoirs ◽  
Gas Reservoir ◽  
Absorption Effect ◽  
Impedance Inversion ◽  
Gas Bearing

Gas reservoir characterization is one of the frontiers in seismic exploration. Acoustic impedance, one of the most effective seismic attributes, aims to describe the spatial distribution of rock properties. However, using acoustic impedance only is insufficient to describe gas-bearing layers accurately, in the case of rapid lithologic changes and complex geology in the deepwater area. The reflection seismograms show an absorption effect when seismic waves propagate through gas-bearing layers. The absorption effect can be used as an additional attribute to help gas reservoir characterization. Therefore, a new attribute is proposed for gas reservoir characterization in this study, which integrates the results of acoustic impedance and absorption coefficient. We estimate the acoustic impedance model by employing poststack impedance inversion and then we calculate probability distribution functions. Functions are classified into gas-bearing and non-gas layers. We discuss an absorption coefficient and obtain it from the spectrum gradient, where the gradient is calculated by spectral decomposition using the matching pursuit method. We apply the new attribute to characterize the spatial distribution and thickness of deepwater gas reservoirs in the Pearl River Mouth Basin. Well-log and geologic information show that the study area has an enrichment of gas reservoirs. Field data application shows the explicit distribution of the gas reservoir and in accordance with the well-log information, which indicates that the proposed attribute can improve gas reservoir characterization.

Appraisal of the Bicudo Field with Seismic‐Derived Acoustic Impedance Data, Campos Basin, Brazil

1982 ◽  
Author(s):  
Sérgio Possato ◽  
Kaoru Tsubone ◽  
André L. Romanelli ◽  
José Tassini
Keyword(s):  
Acoustic Impedance ◽  
Impedance Data ◽  
Campos Basin
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