Resolving Differences Between Core and Welltest Permeability in Basal Colorado Sandstones, Canada: The Role of Rock Heterogeneity, Relative Permeability and Formation Damage

2001 ◽  
Author(s):  
Dan Potocki
Keyword(s):  
Relative Permeability ◽  
Formation Damage ◽  
Rock Heterogeneity

The Role of Forensic Petrophysics in Formation Damage Evaluation

2011 ◽  
Author(s):  
Colin Alexander McPhee ◽  
Michael T. Byrne ◽  
Gill Daniels
Keyword(s):  
Formation Damage ◽  
Damage Evaluation

scholarly journals Asphaltene Formation Damage Stimulation by Ultrasound: An Analytical Approach Using Bundle of Tubes Modeling

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Arash Rabbani ◽  
Mohammad Hossein Ghazanfari ◽  
Mahmood Amani
Keyword(s):  
Present Model ◽  
Formation Damage ◽  
Model Parameters ◽  
Surface Deposition ◽  
Novel Approach ◽  
Time Period ◽  
Proposed Model ◽  
Stimulation Efficiency ◽  
Permeability Impairment

This study presents a novel approach for bundle of tubes modeling of permeability impairment due to asphaltene-induced formation damage attenuated by ultrasound which has been rarely attended in the available literature. Model uses the changes of asphaltene particle size distribution (APSD) as a function of time due to ultrasound radiation, while considering surface deposition and pore throat plugging mechanisms. The proposed model predicts the experimental data of permeability reduction during coinjection of solvent and asphaltenic oil into core with reasonable agreement. Viscosity variation due to sonication of crude oil is used to determine the fluid mobility applied in the model. The results of modeling indicate that the fluid samples exposed to ultrasound may cause much less asphaltene-induced damage inside the porous medium. Sensitivity analysis of the model parameters showed that there is an optimum time period during which the best stimulation efficiency is observed. The results of this work can be helpful to better understand the role of ultrasound prohibition in dynamic behavior of asphaltene deposition in porous media. Furthermore, the present model could be potentially utilized for modeling of other time-dependent particle induced damages.

The Role of Cores and Core Analysis in Evaluation of Formation Damage

1977 ◽  
Vol 29 (05) ◽  
pp. 482-490 ◽  
Author(s):  
D.K. Keelan ◽  
E.H. Koepf
Keyword(s):  
Formation Damage ◽  
Core Analysis

Effect of Rock Heterogeneity on Relative Permeability: Implications for Scale-up

1995 ◽  
Vol 47 (11) ◽  
pp. 980-986 ◽  
Author(s):  
M.M. Honarpour ◽  
A.S. Cullick ◽  
Naji Saad ◽  
N.V. Humphreys
Keyword(s):  
Relative Permeability ◽  
Scale Up ◽  
Rock Heterogeneity
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