Evolution of Coal Permeability under Constant Effective Stresses: Direct Measurements and Numerical Modeling

2021 ◽  
Author(s):  
Yaoyao Zhao ◽  
Dongxue Cui ◽  
Jishan Liu ◽  
Mingyao Wei ◽  
Yingke Liu
Keyword(s):  
Numerical Modeling ◽  
Coal Permeability ◽  
Effective Stresses ◽  
Direct Measurements

Long-Term Evolution of Coal Permeability Under Effective Stresses Gap Between Matrix and Fracture During CO2 Injection

2019 ◽  
Vol 130 (3) ◽  
pp. 969-983 ◽  
Author(s):  
Mingyao Wei ◽  
Jishan Liu ◽  
Rui Shi ◽  
Derek Elsworth ◽  
Zhanghao Liu
Keyword(s):  
Long Term Evolution ◽  
Co2 Injection ◽  
Coal Permeability ◽  
Effective Stresses ◽  
Term Evolution

scholarly journals Numerical modeling of a heterogeneous stress-strain state and prediction of changes in the permeability of the near-wellbore zone when creating slotted perforation in a sandstone reservoir

2020 ◽  
pp. 25-36
Author(s):  
S.N. Popov ◽  
S.E. Chernyshov
Keyword(s):  
Numerical Simulation ◽  
Numerical Modeling ◽  
Stress Field ◽  
Strain State ◽  
Stress Strain ◽  
Effective Stresses ◽  
Stress Strain State ◽  
Sandstone Reservoir

The results of numerical simulation of the distribution of a heterogeneous stress field near the well for a sandstone reservoir formation when creating slotted perforation are presented. Variations in permeability are predicted depending on changes in the magnitude of effective stresses. Areas of restoration of permeability after the creating of slotted channels are revealed. It is shown that slotted perforation is an effective method for stimulating hydrocarbon inflow.

Investigation of Morphosedimentary Processes on a Schematic Louisiana Barrier Island Using Process-Based Numerical Modeling

2007 ◽  
Author(s):  
T. Campbell ◽  
B. de Sonneville ◽  
L. Benedet ◽  
D. J. W. Walstra ◽  
C. W. Finkl
Keyword(s):  
Numerical Modeling ◽  
Barrier Island

SIMULATION OF ELECTRICAL MONITORING OF DAMS WITH LEAKAGE WITH A TRANSVERSE PLACEMENT OF THE MEASURING INSTALLATION

2020 ◽  
Vol 8 (4) ◽  
pp. 69-82
Author(s):  
D.S. Rakisheva ◽  
◽  
B.G. Mukanova ◽  
I.N. Modin ◽  
◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Water Level ◽  
Electrical Resistivity Tomography ◽  
Resistivity Tomography ◽  
Measuring Installation ◽  
Basic Functions ◽  
Tomography Method ◽  
Dam Monitoring ◽  
The Mathematical Model ◽  
Measurement Line

Numerical modeling of the problem of dam monitoring by the Electrical Resistivity Tomography method is carried out. The mathematical model is based on integral equations with a partial Fourier transform with respect to one spatial variable. It is assumed that the measurement line is located across the dam longitude. To approximate the shape of the dam surface, the Radial Basic Functions method is applied. The influence of locations of the water-dam, dam-basement, basement-leakage boundaries with respect to the sounding installation, which is partially placed under the headwater, is studied. Numerical modeling is carried out for the following varied parameters: 1) water level at the headwater; 2) the height of the leak; 3) the depth of the leak; 4) position of the supply electrode; 5) water level and leaks positions are changing simultaneously. Modeling results are presented in the form of apparent resistivity curves, as it is customary in geophysical practice.

Numerical modeling to well-head protection area delineation, an example in Veneto Region (NE Italy)

2015 ◽  
Vol 35 ◽  
pp. 232-235 ◽  
Author(s):  
Leonardo Piccinini ◽  
Paolo Fabbri ◽  
Marco Pola ◽  
Enrico Marcolongo ◽  
Alessia Rosignoli
Keyword(s):  
Numerical Modeling ◽  
Veneto Region ◽  
Ne Italy ◽  
Head Protection ◽  
Protection Area

Numerical modeling of regional groundwater flow in the Adda-Ticino Basin: advances and new results

2016 ◽  
Vol 41 ◽  
pp. 10-13 ◽  
Author(s):  
Luca Alberti ◽  
Martino Cantone ◽  
Silvia Lombi ◽  
Alessandra Piana
Keyword(s):  
Numerical Modeling ◽  
Groundwater Flow ◽  
Regional Groundwater
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