3. Modeling A#

3.1. Characteristics of modeling A#

  • Modeling in 2D plane deformations.

  • Hydraulic law: “LIQU_AD_GAZ_VAPE”

  • 50 \(Q8\) items.

The simulation is carried out over one year.

3.2. Result of modeling A#

The following figures show the profiles of variation in temperature, capillary pressure, pressure, saturation and gas pressure variation (with respect to the initial state) at various times (1 hour, 1 month, 1 year). The observed behavior corresponds well to that of drying with a progressive desaturation front. The kinetics are logically different for thermal and for drying. This is a case of non-regression (no reference solution).

_images/100000000000034A000002534F0D2564E51CE616.png

Figure 3.2-1: Temperature profiles

_images/100000000000034A0000025359978166DBC09ADD.png

Figure 3.2-2: Capillary Pressure Profiles

_images/100000000000034A00000253211121106AE00932.png

Figure 3.2-3: Saturation profiles

_images/100000000000034A00000253F119C5B7AFAD086C.png

Figure 1: Gas pressure profiles

The pressure and saturation values are checked at node 14 (x=0.04; y=0).

Time

S

PRE1 (MPa)

1 hour

0.984

1, 35

1 month

0.965

1, 57

1 year

0, 862

4, 11

It is then verified on a 1-hour model that the isotherm is well taken into account in order to:

  • the law of behavior “LIQU_AD_GAZ”.

Time

PRE1 (MP a)

1 hour

1, 29

  • the law of behavior “LIQU_GAZ”.

Time

PRE1 (MP a)

1 hour

1, 29

  • the law of behavior “LIQU_VAPE_GAZ”.

Time

PRE1 (MP a)

1 hour

1, 33