Enhanced oil recovery (EOR) technologies get extra petroleum out of depleted fields by squeezing CO2 into them.

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Five of the seven plants under construction will also use the captured CO2 for enhanced oil recovery (EOR).

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In the fossil fuel industry, both enhanced oil recovery (EOR) and enhanced coal bed methane recovery use compressed CO2 as an input.

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These generally require enhanced oil recovery techniques such as gas (CO2) injection, chemical injection, microbial injection, cyclic steam injection, steam flooding, and fire flooding.

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Pollutants like sulfur are removed, and GreatPoint uses conventional air-chilling technology to separate out the carbon dioxide, which it plans to pump into the ground for enhanced oil recovery.

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The company continued to benefit from the shift towards shale oil, natural gas liquids and enhanced oil recovery operations as the slow recovery in gas prices pushed exploration firms to focus on liquids.

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Private equity backed 2Co wants to build a new coal plant above the Hatfield coal mine and pump the gas to North Sea oil fields where it can be used for enhanced oil recovery.

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Hydrogen Energy International, a joint venture between two big resource firms, Rio Tinto and BP, says that its proposed CCS plant in California will need extra subsidies, even though the state is imposing a carbon price and the project will earn revenues from enhanced oil recovery.

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