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1-18 of 18
Keywords: fluid indicator
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Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4092622
... Geofluid identification is critical to reservoir forecast. Many fluid identifications mean released in recent years use conventional linear pre-stack inversions to obtain the majority of the fluid indicators, resulting in low fluid identification accuracy. Another disadvantage is that fluid...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216380
... reflection coefficient equation upstream oil & gas incident angle elastic parameter inversion application fluid indicator impedance Aki , K. , and P. Richards , 1980 , Quantitative seismology : W. H. Freeman and Co . Alemie , W. , and M. D. Sacchi...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214591
... ABSTRACT One of the primary fluid indicators for direct hydrocarbon detection using seismic amplitude anomalies is the difference between saturated-rock P-wave impedance and the rock-frame impedance. This can be expressed in terms of the difference between the observed P-wave impedance...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997399
... of the reflecting saturated anisotropic medium can be parameterized as a perturbation over a homogenous isotropic background porous medium. We have used the scattering theory to derive a generalized AVOAz approximation that provides the estimation of hydrocarbon fluid indicator, shear modulus, density, and fracture...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17640139
... ABSTRACT Reservoir characterization is an important part in seismic exploration. Reliable fluid indicators help to reduce the risk of reservoir characterization and increase the rationality of drilling plans. Traditional fluid indicators such as ??, Poisson impedance and Poisson's ratio can...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13878969
.... Presentation Date: Tuesday, October 18, 2016 Start Time: 10:45:00 AM Location: 156 Presentation Type: ORAL structural geology well logging new fluid prediction indicator sqp annual meeting gamma ray rock physics log analysis water saturation lithology fluid indicator upstream oil...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13848815
... ABSTRACT Reservoir fluid discrimination is an important part in seismic exploration. Reliable fluid indicators help to reduce the risk of exploration and increase the rationality of drilling plans. Rock physics models are essential in converting elastic parameters from inversion data...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13855675
... elastic parameter angle domain fluid indicator avo inversion application impedance upstream oil & gas ray parameter domain bayesian theory equation incident angle domain inversion result inversion inversion result reflection coefficient seg seg international exposition...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5912566
...) and Thomsen anisotropic parameters ( e v and d v ) can be solved. In addition, based on previous studies, fracture fluid indicator can be obtained as well. Numerical model shows that, fracture density and orientation from the new method is much closer to the real value than that from conventional AVOZ...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5914732
... in the reservoir and a predominant fracture orientation approximately in the NE-SW direction. The Fourier decomposition based inversion was additionally able to determine normal ( N) and tangential ( T) fracture weaknesses, which were used to calculate a fluid indicator attribute. This attribute indicated...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5863994
... Summary Fluid discrimination is an essential part in seismic exploration. Reliable fluid indicators help to reduce the risk of exploration and increase the rationality of drilling plans. In most conditions, combined indicators are more popular because they are more sensitive to the reservoir...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5761311
... efficiency and stability of inversion into consideration. The practical test verifies the feasibility and robustness of the method, and then the effective pore-fluid bulk modulus extracted from real data is applied to identify reservoir fluid, which may be a more sensitive fluid indicator and achieves better...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1407
... parameters. Then, a non-linear algorithm-PSO (Particle Swarm Optimization) algorithm is utilized to invert fracture density and Thomsen parameters from the proposed equation. Then, the fracture fluid indicator is expressed in another form with non-linear results. Numerical model shows that, compared...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-0404
.... Introduction Various fluid indicators (often called direct hydrocarbon indicators, or DHI) have been proposed to differentiate lithology and fluid for increasingly complicated exploration and production projects. The concept of fluid factor was firstly proposed by Smith and Gidlow (1987), and was derived using...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-0239
... of observation. An inversion method is presented to estimate the fluid indicator, a quantitative measure for the fluid saturation, from AVO gradient variations with azimuth, assuming that the orientation and tangential weakness are known a priori. The tangential weakness can be related to the fracture density...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2007 SEG Annual Meeting, September 23–28, 2007
Paper Number: SEG-2007-0279
... Summary Numerous approaches have been published which derive fluid indicators (often called direct hydrocarbon indicators, or DHI) from AVO equations. The main idea behind these methods is to use the linearized Zoeppritz equations to extract petrophysical parameters such as P-impedance...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2001 SEG Annual Meeting, September 9–14, 2001
Paper Number: SEG-2001-1697
... in sensitivity to hydrocarbon saturation. Starting with normal reflectivity and slope (A-B) plots, the indicators can be tuned to the properties of the contained pore fluids. reservoir characterization internat de-hua han upstream oil & gas fluid indicator ronny hofmann colorado school...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2001 SEG Annual Meeting, September 9–14, 2001
Paper Number: SEG-2001-0326
... equation holds. The analysis confirms that ?? is sensitive to fluid composition for sandstones, but also finds that ?? is not necessarily the best fluid indicator. For reservoir lithologies other than sandstone ?? is less optimal as a fluid indicator. impedance reservoir characterization upstream...