Oil Recovery Techniques

Oil recovery techniques are methods used to extract trapped oil from underground reservoirs. Primary recovery relies on natural pressure to bring oil to the surface. Secondary recovery involves injecting water or gas to maintain pressure and push out more oil. Tertiary or enhanced recovery uses advanced methods like chemical injections, thermal techniques, or gases like carbon dioxide to change the oil's properties, making it easier to extract. These techniques improve the amount of oil that can be recovered from a reservoir beyond initial production, increasing efficiency and extending the lifespan of oil fields.