As a general rule oil wells reach their maximum output shortly after completion, when all the positive natural factors controlling productivity are more efficient than at any other time. Positive factors are those that assist in the expulsion of oil, such as compressed gas associated with the oil and dissolved in it, and occasionally water and gas pressure in the same stratum. The natural factors tending to retard the output are called negative factors and include frictional resistance in the producing stratum, viscosity and gravity of the oil, and back pressure exerted by the atmosphere. Many others could be mentioned...
You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
