PSI - Issue 28

A. Kostina et al. / Procedia Structural Integrity 28 (2020) 675–683 Author name / Structural Integrity Procedia 00 (2019) 000–000

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4). A rise in the porosity considerably improves permeability which in turn enhances oil production rate. Figure 4 shows that thermo-elastic strains could not provide significant increase in permeability but taking into consideration some additional strain induced by structural changes in the reservoir allows one to magnify maximum value of permeability in 1.5 times.

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(b)

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Fig. 1. Evolution of p 0 (uniform steam distribution) (a) 100

th day; (b) 200 th day; (c) 400 th day.

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Fig. 2. Evolution of p 0 (non-uniform steam distribution) (a) 100

th day; (b) 200 th day; (c) 400 th day.

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Fig. 3. Porosity increment by 400 th day of SAGD (a) thermo-elastic model, non-uniform steam distribution; (b) thermo-inelastic model, uniform steam distribution; (c) thermo-inelastic model, non-uniform steam distribution.