Experimental study on CO2–water alternating huff-n-puff and pressure-driven imbibition water flooding in interbedded shale reservoirs

Key Points

• Huff-n-puff methods enhance fluid recovery rates in interbedded shale reservoirs, demonstrating improved extraction.
• Recovery rates increased by up to 30% with CO2-water alternating huff-n-puff interventions compared to traditional methods.
• Experimental analysis of pressure-driven imbibition in shale formations indicates effectiveness in fluid displacement techniques.
• Findings highlight the potential for more efficient resource extraction from interbedded shale reservoirs.