Consider a CO2 Huff’n’Puff Rather than Abandoning a Heavy Oil Well
Low primary recoveries (<10% of OOIP) in conventional heavy oil and CHOPS wells;
Optimize the potential of existing assets at much lower capital cost than drilling new wells;
Sequester CO2 while enhancing well productivity and oil recoveries.
Cyclic Solvent Injection (CSI) with CO2
Economic single-well enhance oil recovery alternative.
Lenticular or severely faulted reservoirs
Wells with suspected water-blocks or fracturing damage
Rock type and quality
Improves Hydrocarbon recovery by 3-8%.
Sources SPE 157823 / SPE 169575