Research Article

Variations on Reservoir Parameters of Oil Shale Deposits under Periodic Freeze-Thaw Cycles: Laboratory Tests

Figure 9

Variation of freeze-thaw cycles on the stress and strain of the measured oil shale samples.
(a) Obtained stress-strain of dry rock sample
(b) Obtained stress-strain of saturated rock sample
(c) Stress-strain under 2 times of freeze-thaw cycle
(d) Stress-strain under 4 times of freeze-thaw cycle
(e) Stress-strain under 8 times of freeze-thaw cycle
(f) Stress-strain under 16 times of freeze-thaw cycle
(g) Stress-strain under 24 times of freeze-thaw cycle