Quad-Tree decomposition method for areal upscaling of heterogeneous reservoirs: Application to arbitrary shaped reservoirs

Gholinezhad, Sajjad; Jamshidi, Saeid; Hajizadeh, Alireza

doi:10.1016/j.fuel.2014.09.039

Cited by 4 publications

(3 citation statements)

References 42 publications

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“…This kind of longtime computation is usually not endurable in engineering. Petroleum engineers attempted several approaches to speed up oil reservoir simulations, including the scale-up approach [11][12][13][14][15] and parallel computation [16]. Proper orthogonal decomposition (POD) can reduce computational loads efficiently via a reduced-order model.…”

Section: Introductionmentioning

confidence: 99%

Acceleration of Gas Reservoir Simulation Using Proper Orthogonal Decomposition

Wang

2018

Geofluids

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High-precision and high-speed reservoir simulation is important in engineering. Proper orthogonal decomposition (POD) is introduced to accelerate the reservoir simulation of gas flow in single-continuum porous media via establishing a reduced-order model by POD combined with Galerkin projection. Determination of the optimal mode number in the reduced-order model is discussed to ensure high-precision reconstruction with large acceleration. The typical POD model can achieve high precision for both ideal gas and real gas using only 10 POD modes. However, acceleration of computation can only be achieved for ideal gas. The obstacle of POD acceleration for real gas is that the computational time is mainly occupied by the equation of state (EOS). An approximation method is proposed to largely promote the computational speed of the POD model for real gas flow without decreasing the precision. The improved POD model shows much higher acceleration of computation with high precision for different reservoirs and different pressures. It is confirmed that the acceleration of the real gas reservoir simulation should use the approximation method instead of the computation of EOS.

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Section: Introductionmentioning

confidence: 99%

Acceleration of Gas Reservoir Simulation Using Proper Orthogonal Decomposition

Wang

2018

Geofluids

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“…Na literatura, são usadas várias técnicas para realizar essa nova distribuição, como, por exemplo, média harmônica, média aritmética, e média geométrica, entre outras. Cada técnica possui características específicas para cada aplicação (GHOLINEZHAD; JAMSHIDI; HAJIZADEH, 2015). Para este trabalho, utilizaremos uma técnica de renormalização para o upscaling, que vem sendo utilizada com grande aceitação em diversos trabalhos (GHOLINEZHAD; JAMSHIDI; HAJIZADEH, 2015;RASAEI;SAHIMI, 2009).…”

Section: Renormalização Da Permeabilidade (Upscaling)unclassified

“…Cada técnica possui características específicas para cada aplicação (GHOLINEZHAD; JAMSHIDI; HAJIZADEH, 2015). Para este trabalho, utilizaremos uma técnica de renormalização para o upscaling, que vem sendo utilizada com grande aceitação em diversos trabalhos (GHOLINEZHAD; JAMSHIDI; HAJIZADEH, 2015;RASAEI;SAHIMI, 2009).…”

Section: Renormalização Da Permeabilidade (Upscaling)unclassified