527 Q14 CO2 EOR (economic)

Present CO₂-EOR projects are driven entirely by the additional revenue of enhanced oil extraction, not focusing at all on increasing the amount of CO₂ stored.

• True

• False

The storage potential of CO₂ in CO₂-EOR projects (current and future) is severely limited by

• the supply of CO₂ to these projects (by capture and transportation).

• the limited amounts of CO₂ emissions produced by anthropogenic activities.

• the limited number of viable CO₂-EOR projects.

Among the main oil-producing countries, which country has the highest ratio of full to restricted CO₂-storage potential?

• Russia

• Iraq

• Saudi Arabia

• Libya

The total possible CO₂ storage potential in Saudi Arabia is about

• 0.8 GtCO₂

• 40 GtCO₂

• 25 GtCO₂

• 190 GtCO₂

It is not feasible to implement CO₂-EOR in wells supplying crude oils of low viscosity.

• True

• False

Incentive-based CO₂-EOR projects (where the operator is paid to store the CO₂) sequester more CO₂ than the projects where the operator pays for getting the CO₂.

• True

• False

Petroleum taxes and charges have the potential to significantly erode the financial feasibility of CO₂-EOR projects.

• True

• False

To reduce the CAPEX and OPEX of CO₂-EOR, we should

(check all that applies; no partial credit)

• cluster several EOR sites within the

  same geological formations with a CO₂ source in the vicinity.

• cluster several CO₂ sources with a large EOR site in the vicinity.

• map each EOR site to its dedicated CO₂ source.

• connect all CO₂ sources to all EOR sites in an extensive pipe network.

CO2-EOR is most feasible in sites where the gas/oil ratio (GOR) is

• lowest

• highest

• moderate

• (GOR has no effect on the choice of EOR site)

To use miscible CO₂-EOR, the well pressure must be _______ the minimum miscibility pressure.

• higher than

• lower than

• almost equal to