Page 51 - Enhanced Oil Recovery in Shale and Tight Reservoirs
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Huff-n-puff gas injection in oil reservoirs 39
Computer
Regulator
Pressure Gages
Air Bath
Gas Tank PUMP A PUMP B PURGE CO 2 Crude oil Vacuum
PUMP
1 2 3 Pump
H 2 O Syringe continuous
Pumping system
Accumulators
Figure 2.29 Experimental setup for the CO 2 huff-n-puff tests.
Figure 2.30 Oil recovery factors at different soaking pressures and different cycles for
Core 2.
Figure 2.31 MMP determined from tests using Core 2 at Cycles 6 and 7. (A) MMP from
Core 2 at Cycle 6 (B) MMP from Core 2 at Cycle 7.
