Enhanced Oil Recovery - EOR

DEFINITION of 'Enhanced Oil Recovery - EOR'

Enhanced oil recovery (EOR) is the process of obtaining stranded oil not recovered from an oil reservoir through certain extraction processes. EOR uses methods including thermal recovery, gas injection, chemical injection and low-salinity water flooding. Although these techniques are expensive and not always effective, scientists are particularly interested in EOR's potential to increase domestic oil production.

Also called "tertiary recovery."

BREAKING DOWN 'Enhanced Oil Recovery - EOR'

Thermal recovery uses heat to thin the oil to make it easier to extract and is popular in California. Gas injection, common throughout the United States, can either push out oil or thin it. CO2 EOR is considered the most promising technique. Chemical injection uses polymers or surfactants to improve oil flow and is not common in U.S. oil production.

RELATED TERMS
  1. Tertiary Recovery

    A technique used to extract the remaining oil from previously ...
  2. Produced Water

    Waste water generated during the production of oil and natural ...
  3. Primary Recovery

    The first stage of oil and gas production, in which natural reservoir ...
  4. Unconventional Oil

    A type of petroleum that is produced or obtained through techniques ...
  5. Oil Initially In Place - OIIP

    The amount of crude first estimated to be in a reservoir. Oil ...
  6. Oil Shale

    A type of sedimentary rock composed chiefly of a combination ...
Related Articles
  1. Trading

    How Does Crude Oil Affect Gas Prices?

    Find out how this commodity's fluctuating price affects more than just how much you pay at the pump.
  2. Markets

    Peak Oil: What To Do When The Wells Run Dry

    Find out how to invest and protect your investments in this slippery sector.
  3. Markets

    How Oil Prices Impact the U.S. Economy

    Now that the United States has increased oil production through shale oil and fracking, low oil prices can harm the U.S. oil industry and its workers.
  4. Markets

    Want To Start Trading Oil? Understand The Basics First

    The overall economics of oil extraction is that there is money in it - both for extraction companies and their investors.
  5. Markets

    The Economics of Oil Extraction

    The overall economics of oil extraction is that there is money in it - both for extraction companies and their investors.
  6. Markets

    Oil Boom 2.0: Be Sure You Are Ready to Invest

    Learn about the potential for oil boom 2.0, and discover why some experts say this is a good time to invest in oil companies and ETFs.
  7. Markets

    Who Wins With Low Energy Prices? 

    Low oil prices are here to stay for some time. Which economies will benefit or lose from the low oil price regime?
  8. ETFs & Mutual Funds

    Take Advantage of Cheap Oil, Invest in these ETFs

    With crude oil prices at record lows, investors should consider oil ETFs over oil company stocks as ETFs more closely mirror the price of oil
  9. Managing Wealth

    5 Reasons Why Private Equity Investors Like Oil and Gas Companies

    Oil and gas companies may look like a risky industry on the outside, but private equity investors have found reasons to regularly invest in these firms.
  10. Markets

    Is Now the Right Time to Buy Oil Stocks?

    Learn about the oil industry and how crude oil effects the prices of oil stock. Understand if now is a good time to purchase oil stock.
RELATED FAQS
  1. Why do oil stock prices drop?

    Doesn't lower oil prices mean more profit for companies that use oil products?  ... Read Answer >>
  2. When you buy oil, do you have to buy thousands of stocks at one time or can you start ...

    I am new to oil stocks and want to invest a couple thousand dollars. Do oil stocks pay dividends? Is now the time to ... Read Answer >>
  3. Why did oil prices drop so much in 2014?

    Learn the roles that decreased global demand, new supply sources in North America and actions taken by Saudi Arabia played ... Read Answer >>
  4. What causes oil prices to fluctuate?

    Discover how OPEC, demand and supply, natural disasters, production costs and political instability are some of the major ... Read Answer >>
  5. Why are stocks and oil so correlated right now?

    Learn whether the stock market and oil prices will continue their highly correlated price relationship or decouple again ... Read Answer >>
  6. Besides oil companies, what businesses are hurt by cheap oil prices?

    Falling oil prices do not only affect oil companies. Learn what other types of businesses are unintended victims of the drop ... Read Answer >>
Hot Definitions
  1. Duration

    A measure of the sensitivity of the price (the value of principal) of a fixed-income investment to a change in interest rates. ...
  2. Dove

    An economic policy advisor who promotes monetary policies that involve the maintenance of low interest rates, believing that ...
  3. Cyclical Stock

    An equity security whose price is affected by ups and downs in the overall economy. Cyclical stocks typically relate to companies ...
  4. Front Running

    The unethical practice of a broker trading an equity based on information from the analyst department before his or her clients ...
  5. After-Hours Trading - AHT

    Trading after regular trading hours on the major exchanges. The increasing popularity of electronic communication networks ...
  6. Omnibus Account

    An account between two futures merchants (brokers). It involves the transaction of individual accounts which are combined ...
Trading Center