Primary Recovery

AAA

DEFINITION of 'Primary Recovery'

The first stage of oil and gas production, in which natural reservoir drives are used to recover hydrocarbons. Due to the difference in pressure within the reservoir and at the bottom of the well, hydrocarbons are driven towards the well and to the surface. During primary recovery, typically only 5-15% of initial hydrocarbons are produced for oil reservoirs.


Also called primary production.




INVESTOPEDIA EXPLAINS 'Primary Recovery'

Oil and gas companies will expend less money retrieving the resources from the ground during this initial phase. As production continues the reservoir pressure will decrease and hence the differential pressure decreases, which may necessitate the use of a pump to increase production. The limit for primary recovery is generally reached either when the reservoir pressure is too low, or the mix of gas or water in the output stream is too high. The next stage then involves the use of secondary recovery techniques such as gas injection or flooding.

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. Commercial Well

    Any oil or gas drilling site that produces enough oil or gas ...
  4. Oil Field

    A tract of land used for extracting petroleum, or crude oil, ...
  5. Enhanced Oil Recovery - EOR

    Enhanced oil recovery (EOR) is the process of obtaining stranded ...
  6. 1979 energy crisis

    The 1979 energy crisis in the U.S. was an event of widespread ...
Related Articles
  1. Oil: A Big Investment With Big Tax Breaks
    Investing Basics

    Oil: A Big Investment With Big Tax Breaks

  2. Oil And Gas Industry Primer
    Active Trading

    Oil And Gas Industry Primer

  3. Accounting For Differences In Oil And ...
    Fundamental Analysis

    Accounting For Differences In Oil And ...

  4. Peak Oil: Problems And Possibilities
    Options & Futures

    Peak Oil: Problems And Possibilities

comments powered by Disqus
Hot Definitions
  1. Halloween Massacre

    Canada's decision to tax all income trusts domiciled in Canada. In October 2006, Canada's minister of finance, Jim Flaherty, ...
  2. Zombies

    Companies that continue to operate even though they are insolvent or near bankruptcy. Zombies often become casualties to ...
  3. Witching Hour

    The last hour of stock trading between 3pm (when the bond market closes) and 4pm EST. Witching hour is typically controlled ...
  4. October Effect

    The theory that stocks tend to decline during the month of October. The October effect is considered mainly to be a psychological ...
  5. Repurchase Agreement - Repo

    A form of short-term borrowing for dealers in government securities.
  6. Correlation

    In the world of finance, a statistical measure of how two securities move in relation to each other. Correlations are used ...
Trading Center