Sensitivity Analysis of Petrophysical Parameters Due to Fluid Substitution in a Sandstone Reservoir

2019 ◽  
pp. 267-280
Author(s):  
S. P. Maurya ◽  
N. P. Singh ◽  
Kumar Hemant Singh
Keyword(s):  
Sensitivity Analysis ◽  
Fluid Substitution ◽  
Petrophysical Parameters ◽  
Sandstone Reservoir

Sensitivity Analysis of Petrophysical Parameters for Estimating Hydrate Saturation in the Shenhu Area

2019 ◽  
Author(s):  
Xue-Qin Liu ◽  
Huai-Shan Liu ◽  
Lei Xing ◽  
Zhi-Liang Qin ◽  
Ben-Jun Ma
Keyword(s):  
Sensitivity Analysis ◽  
Shenhu Area ◽  
Petrophysical Parameters ◽  
Hydrate Saturation

scholarly journals Rock Physics Modeling and Fluid Substitution Studies in Sandstone Reservoir

2014 ◽  
Vol 14 (11) ◽  
pp. 1180-1185 ◽  
Author(s):  
I.A. Purnamasar ◽  
H. Khairy ◽  
A.L. Abdeldayem ◽  
W. Ismail
Keyword(s):  
Rock Physics ◽  
Fluid Substitution ◽  
Rock Physics Modeling ◽  
Sandstone Reservoir ◽  
Physics Modeling

AVA simultaneous inversion of partially stacked seismic amplitude data for the spatial delineation of lithology and fluid units of deepwater hydrocarbon reservoirs in the central Gulf of Mexico

Geophysics ◽  
2006 ◽  
Vol 71 (4) ◽  
pp. E41-E48 ◽  
Author(s):  
Arturo Contreras ◽  
Carlos Torres-Verdín ◽  
Tim Fasnacht
Keyword(s):  
Sensitivity Analysis ◽  
Gulf Of Mexico ◽  
Seismic Inversion ◽  
Hydrocarbon Reservoirs ◽  
Acoustic Properties ◽  
Fluid Substitution ◽  
Class Iii ◽  
Simultaneous Inversion ◽  
Seismic Amplitude ◽  
Amplitude Data

This paper describes the successful application of amplitude-versus-angle (AVA) inversion of prestack-seismic amplitude data to detect and delineate deepwater hydrocarbon reservoirs in the central Gulf of Mexico. Detailed AVA fluid/lithology sensitivity analysis was conducted to assess the nature of AVA effects in the study area based on well-log data. Standard techniques such as crossplot analysis, Biot-Gassmann fluid substitution, AVA reflectivity modeling, and numerical simulation of synthetic gathers were part of the AVA sensitivity analysis. Crossplot and Biot-Gassmann analyses indicate significant sensitivity of acoustic properties to fluid substitution. AVA reflectivity and angle-gather modeling indicate that the shale/sand interfaces represented by the top and base of the M-10 reservoir are associated with typical Class III AVA responses caused by relatively low-impedance gas-bearing sands. Consequently, prestack seismic inversion provided accurate and reliable quantitative information about the spatial distribution of lithology and fluid units within the turbidite reservoirs based on the interpretation of fluid/lithology-sensitive modulus attributes. From the integration of inversion results with analogous depositional models, the M-series reservoirs were interpreted as stacked terminal turbidite lobes within an overall fan complex. This interpretation is consistent with previous regional stratigraphic/depositional studies.

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