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TOP 3 REASONS TO CONSIDER CO2 HUFF’N’PUFF RATHER THAN ABANDONING A HEAVY OIL WELL


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.

Candidate Wells

Depleted reservoirs

  • Wells with good initial production

  • Wells high residual hydrocarbon saturation

  • Light oil and heavy oil

Lenticular or severely faulted reservoirs

Wells with suspected water-blocks or fracturing damage

Rock type and quality

  • Sandstones

  • Carbonates

  • Shales

  • Dolomites

Technical Benefits

Improves Hydrocarbon recovery by 3-8%.

Sources SPE 157823 / SPE 169575

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