The document summarizes the porous plate method for measuring capillary pressure. It describes how the porous plate method is the most accurate for measuring capillary pressure in homogeneous and heterogeneous cores. It can measure several plugs at once, though the capillary discontinuity may distort results. The method involves placing a saturated core on a porous plate in a cell and applying varying pressure differences over multiple 3-day periods to determine water saturation levels corresponding to capillary pressures. Calculations are then performed and reported.

1. Welcome To My Presentation

2. Topic
“Capillary Pressure Measurement
Using Porous Plate”

3. Capillary Pressure
• Is the pressure between two immiscible fluids in a thin tube.
• Resulting from the interactions of forces between the fluids and solid
walls of the tube.

4. Capillary Pressure

5. Capillary Pressure
Examples of different wetting conditions at their respective contact
angles:

6. Capillary Pressure Measurement
Porous Plate Method:
It is the most accurate
measurement of capillary pressure
in homogeneous and heterogeneous
cores.
Several plugs can be measured at a
time.
The capillary discontinuity may
distort the results.

7. Porous Plate Method(Cont.)
Apparatus:

8. Porous Plate Method(Cont.)
Procedure:
• Put the saturated core onto the
porous plate in the cell.
• Adjust the pressure regulator
and give the cell the pressure
difference according to a
measuring plan.

9. Porous Plate Method(Cont.)
• After 3 days, stop the pressure
supply and take off the cores
from the cell.
• Weigh the core and calculate the
water saturation corresponding
to the capillary pressure

10. Porous Plate Method(Cont.)
• Repeat 1-4 each 3 days until no
appreciable water is produced.

11. Porous Plate Method(Cont.)
Calculations and report:

12. Porous Plate Method(Cont.)

13. THANKS TO ALL