Numerical simulations of geological reservoirs: improving their conditioning through the use of entropy

Delay, F.; Lamotte, Jean–Luc

doi:10.1016/s0378-4754(00)00157-9

Cited by 12 publications

(6 citation statements)

References 32 publications

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“…Although the error-free quality of simulated data has been often used in other domains to qualify method results (Ferré, 1995;Mesplé et al, 1996;Olley and Kochhar, 1996;Delay and Lamotte, 2000), it is less current in ecology (Paruelo and Tomasel, 1997;Kendall et al, 1999;Moilanen, 1999) and has never been applied to habitat-suitability model assessment.…”

Section: Discussionmentioning

confidence: 99%

Assessing habitat-suitability models with a virtual species

Hirzel

Helfer

Metral

2001

Ecological Modelling

425

355

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This paper compares two habitat-suitability assessing methods, the Ecological Niche Factor Analysis (ENFA) and the Generalised Linear Model (GLM), to see how well they cope with three different scenarios. The main difference between these two analyses is that GLM is based on species presence/absence data while ENFA on presence data only. A virtual species was created and then dispatched in a geographic information system model of a real landscape following three historic scenarios: (1) spreading, (2) at equilibrium, and (3) overabundant species. In each situation, the virtual species was sampled and these simulated data sets were used as input for the ENFA and GLM to reconstruct the habitat suitability model. The results showed that ENFA is very robust to the quality and quantity of the data, giving good results in the three scenarios. GLM was badly affected in the case of the spreading species but produced slightly better results than ENFA when the species was overabundant; at equilibrium, both methods produced equivalent results. The use of a virtual species proved to be a very efficient method, allowing one to fully control the quality of the input data as well as to accurately evaluate the predictive power of both analyses.

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Section: Discussionmentioning

confidence: 99%

Assessing habitat-suitability models with a virtual species

Hirzel

Helfer

Metral

2001

Ecological Modelling

425

355

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“…It has enabled the optimization of collocation algorithms [27] and quadrature algorithms [42,43]. It has also been used for checking the reliability of numerical methods in most fields of research in applied numerical mathematics: geology [44,45], acoustics [46], solid mechanics [47], engine combustion [48], and atomic physics [49]. In all cases the CADNA library has always been successful.…”

Section: Resultsmentioning

confidence: 99%

Stochastic Arithmetic as a Model of Granular Computing

Alt

Vignes

2008

Handbook of Granular Computing

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“…The flow and mass transfers in underground reservoirs are complex, but better modeled with numerical simulations by using entropy (Delay & Lamotte 2000). Current literature (Iske & Randen 2005) deals with new developments and advances on mathematical methods and modeling including numerical reservoir simulations, which are better discussed.…”

Section: Fluid Simulation and Faultsmentioning

confidence: 99%

GeoGrid3D: a program to insert faults in 3D geological model for fluid simulation

Bartoszeck

Machado

Rostirolla

2012

Rev. bras. geociênc.

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This paper has reported the use of geological and geophysical data into a 3D flow simulation model (gas). To adopt freeware software in flow simulation, we produced a program called GeoGrid3D. Our program is available with fault insertion features into ASCII 3D models. Also, it has other codification functions that change data for boast recognition (boast is the flow simulation freeware issued by the United States Department of Energy). We have developed the 3D reservoir grid and the structural framework model with data from outcrops of Permian sedimentary rocks and shallow seismic reflection. Analysis of geological facies in outcrops and their correlation with the stratigraphy are the methods used in 3D grid geological modeling and petrophysical properties. To demonstrate GeoGrid3D functions, we elaborated a main petrophysical model with supplementary three hypothetical tectonic faults playing. The gas saturation, after flow simulation, confirms that changing faults permeability inside the reservoir will change gas production in this model.

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Numerical simulations of geological reservoirs: improving their conditioning through the use of entropy

Cited by 12 publications

References 32 publications

Assessing habitat-suitability models with a virtual species

Assessing habitat-suitability models with a virtual species

Stochastic Arithmetic as a Model of Granular Computing

GeoGrid3D: a program to insert faults in 3D geological model for fluid simulation

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