3D hierarchical -FEM applied to elasto-acoustic modelling of layered porous media

2005 ◽  
Vol 285 (1-2) ◽  
pp. 341-363 ◽  
Author(s):  
Nils-Erik Hörlin
Keyword(s):  
Porous Media ◽  
Acoustic Modelling ◽  
Layered Porous Media ◽  
Hierarchical Fem

EFFECT OF ORIENTATION OF STRATA ON MACROSCOPIC SWEEP EFFICIENCY OF WATER/POLYMER FLOODING IN LAYERED POROUS MEDIA

2011 ◽  
Vol 14 (9) ◽  
pp. 761-776 ◽  
Author(s):  
Hamid Emami Meybodi ◽  
Riyaz Kharrat ◽  
Benyamin Yadali Jamaloei
Keyword(s):  
Porous Media ◽  
Polymer Flooding ◽  
Sweep Efficiency ◽  
Layered Porous Media

scholarly journals Modeling Transient Flows in Heterogeneous Layered Porous Media Using the Space–Time Trefftz Method

2021 ◽  
Vol 11 (8) ◽  
pp. 3421
Author(s):  
Cheng-Yu Ku ◽  
Li-Dan Hong ◽  
Chih-Yu Liu ◽  
Jing-En Xiao ◽  
Wei-Po Huang
Keyword(s):  
Porous Media ◽  
Time Domain ◽  
Numerical Solutions ◽  
Space Time ◽  
Two Dimensional ◽  
Transient Flows ◽  
Layered Porous Media ◽  
Time Marching ◽  
Time Basis ◽  
Marching Scheme

In this study, we developed a novel boundary-type meshless approach for dealing with two-dimensional transient flows in heterogeneous layered porous media. The novelty of the proposed method is that we derived the Trefftz space–time basis function for the two-dimensional diffusion equation in layered porous media in the space–time domain. The continuity conditions at the interface of the subdomains were satisfied in terms of the domain decomposition method. Numerical solutions were approximated based on the superposition principle utilizing the space–time basis functions of the governing equation. Using the space–time collocation scheme, the numerical solutions of the problem were solved with boundary and initial data assigned on the space–time boundaries, which combined spatial and temporal discretizations in the space–time manifold. Accordingly, the transient flows through the heterogeneous layered porous media in the space–time domain could be solved without using a time-marching scheme. Numerical examples and a convergence analysis were carried out to validate the accuracy and the stability of the method. The results illustrate that an excellent agreement with the analytical solution was obtained. Additionally, the proposed method was relatively simple because we only needed to deal with the boundary data, even for the problems in the heterogeneous layered porous media. Finally, when compared with the conventional time-marching scheme, highly accurate solutions were obtained and the error accumulation from the time-marching scheme was avoided.

Ultrasonic characterization of air-saturated double-layered porous media in time domain

2010 ◽  
Vol 108 (1) ◽  
pp. 014909 ◽  
Author(s):  
Z. E. A Fellah ◽  
N. Sebaa ◽  
M. Fellah ◽  
F. G. Mitri ◽  
E. Ogam ◽  
...  
Keyword(s):  
Porous Media ◽  
Time Domain ◽  
Ultrasonic Characterization ◽  
Layered Porous Media

scholarly journals SURFACTANT-POLYMER FLOODING PERFORMANCE IN HETEROGENEOUS TWO-LAYERED POROUS MEDIA

2011 ◽  
Vol 12 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Muhammad Taufiq Fathaddin ◽  
Asri Nugrahanti ◽  
Putri Nurizatulshira Buang ◽  
Khaled Abdalla Elraies
Keyword(s):  
Porous Media ◽  
Oil Recovery ◽  
Polymer Flooding ◽  
Water Flooding ◽  
Residual Oil ◽  
Oil Saturation ◽  
Reservoir Heterogeneity ◽  
Residual Oil Saturation ◽  
Layered Porous Media ◽  
Multiple Porosity

In this paper, simulation study was conducted to investigate the effect of spatial heterogeneity of multiple porosity fields on oil recovery, residual oil and microemulsion saturation. The generated porosity fields were applied into UTCHEM for simulating surfactant-polymer flooding in heterogeneous two-layered porous media. From the analysis, surfactant-polymer flooding was more sensitive than water flooding to the spatial distribution of multiple porosity fields. Residual oil saturation in upper and lower layers after water and polymer flooding was about the same with the reservoir heterogeneity. On the other hand, residual oil saturation in the two layers after surfactant-polymer flooding became more unequal as surfactant concentration increased. Surfactant-polymer flooding had higher oil recovery than water and polymer flooding within the range studied. The variation of oil recovery due to the reservoir heterogeneity was under 9.2%.

Significance of Dynamic Effect in Capillarity during Drainage Experiments in Layered Porous Media

2010 ◽  
Vol 9 (3) ◽  
pp. 697-708 ◽  
Author(s):  
Radek Fučík ◽  
Jiří Mikyška ◽  
Toshihiro Sakaki ◽  
Michal Beneš ◽  
Tissa H. Illangasekare
Keyword(s):  
Porous Media ◽  
Dynamic Effect ◽  
Layered Porous Media
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