Enhanced Oil Recovery - EOR

AAA

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."

INVESTOPEDIA EXPLAINS '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. Unconventional Oil

    A type of petroleum that is produced or obtained through techniques ...
  2. Oil Shale

    A type of sedimentary rock composed chiefly of a combination ...
  3. Tertiary Recovery

    A technique used to extract the remaining oil from previously ...
  4. Crude Stockpiles

    Reserves of unrefined petroleum, measured in numbers of barrels. ...
  5. Oil Field

    A tract of land used for extracting petroleum, or crude oil, ...
  6. Organic Reserve Replacement

    Oil reserves that an oil company acquires by exploration and ...
RELATED FAQS
  1. How are oil reserves accounted for on an oil company's balance sheet?

    Oil reserves are estimated quantities of crude oil that have a high degree of certainty, usually 90%, of existence and exploitability. ... Read Full Answer >>
  2. Who are Tesla's (TSLA) main suppliers?

    A relative newcomer to the automotive sector, Tesla Motors (TSLA), headquartered in California, is an auto manufacturer and ... Read Full Answer >>
  3. How much of the United States' energy is produced within the country?

    In 2014, the United States produced 87.1 quadrillion BTU, while it consumed 98.4 quadrillion BTU. This continues a trend ... Read Full Answer >>
  4. Which countries are able to produce oil and gas the cheapest?

    It is difficult to estimate and compare oil extraction costs across the globe because of uneven regulation and subsidies ... Read Full Answer >>
  5. How did the financial crisis affect the oil and gas sector?

    The financial crisis had a negative impact on the oil and gas sector as it led to a steep decline in oil and gas prices and ... Read Full Answer >>
  6. What is Western Canada Select and how does it impact Canadian oil producers?

    Western Canada Select (WCS) is an enormous heavy oil stream in western Canada that also serves as an important benchmark ... Read Full Answer >>
Related Articles
  1. Investing Basics

    Oil: A Big Investment With Big Tax Breaks

    Oil and gas investments can provide unmatched deduction potential for accredited investors.
  2. Active Trading

    Oil And Gas Industry Primer

    Before jumping into this hot sector, learn how these companies make their money.
  3. Active Trading

    Uncovering Oil And Gas Futures

    Find out how to stay on top of data reports that could cause volatility in oil and gas markets.
  4. Forex Education

    Commodity Prices And Currency Movements

    Find out which currencies are most affected by fluctuations in gold and oil prices, and improve your trading.
  5. Active Trading

    Unearth Profits In Oil Exploration And Production

    Drill down into financial statements to tap into the right companies and let returns flow.
  6. Investing

    Will Shale Oil Companies Go Bankrupt?

    An overview of shale oil companies and the threats they face in the aftermath of the decline in crude oil prices.
  7. Chart Advisor

    Silver Stocks Facing Major Resistance

    Active traders in the commodity markets are taking note of silver.
  8. Investing

    The Case For Stocks Today

    Last week, U.S. equities advanced with the S&P 500 Index notching new records. Investors are now getting nervous with rate and currency volatility spiking.
  9. Chart Advisor

    Commodity Traders are Watching These 3 Charts

    As we head towards the summer months, many commodity traders are looking to diversify their holdings and to protect themselves against inflation.
  10. Charts & Patterns

    Should Investors Get Into Oil Now?

    Oil has enjoyed a steady climb after a violent plunge. Where is it going next, and how can investors profit?

You May Also Like

Hot Definitions
  1. Fracking

    A slang term for hydraulic fracturing. Fracking refers to the procedure of creating fractures in rocks and rock formations ...
  2. Mixed Economic System

    An economic system that features characteristics of both capitalism and socialism.
  3. Net Worth

    The amount by which assets exceed liabilities. Net worth is a concept applicable to individuals and businesses as a key measure ...
  4. Stop-Loss Order

    An order placed with a broker to sell a security when it reaches a certain price. A stop-loss order is designed to limit ...
  5. Covered Call

    An options strategy whereby an investor holds a long position in an asset and writes (sells) call options on that same asset ...
  6. Butterfly Spread

    A neutral option strategy combining bull and bear spreads. Butterfly spreads use four option contracts with the same expiration ...
Trading Center