reinjection of oil 'n gas
  • Vote Up0Vote Down Itorgus May 2008
    Posts: 2
    If you reinject oil 'n gas to a resourvoir, lets say to avoid a shutdown, I imagine you only would be able to retrieve the gas, when you turn the well around.

    ??? Would it be possible to rund the resourvoir under super-critical conditions, and retrievel the major part of the liquids as well ?

    The idea would be to injict the lot af a platform, if the next platform on the line shuts down, this way you would only had to reinject in all other platforms instead of shutting down, if there where one collecting platform on the pipeline who shut down.
  • 2 Comments sorted by
  • Vote Up0Vote Down Chief Wigam May 2008
    Posts: 3
    If a platform goes down you just shut the wells in – why would you need to re-inject the oil and gas?



    You can, in theory, re-inject oil back into oil reservoirs, as long as the permeability in the reservoir is high. I believe there would be minimal losses. However, I don’t think this is ever done, mainly because there is no need.



    You would NOT however, re-inject oil into a gas reservoir. Since the rock has never been in contact with oil, injecting oil into this reservoir would result in residual oil being left behind. This could be as high as 30%. In an oil reservoir, this residual oil in the pore space already exists, so no additional oil is lost when re-injecting.

  • Vote Up0Vote Down nishadds86 May 2010
    Posts: 1
    The gas is re-injected into the reservoir in dedicated wells and forces the oil to migrate toward the well bores of the producing wells.Re-injection is used as a method of enhanced oil recovery to compensate for the natural decline of an oil field production by increasing the pressure in the reservoir.
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