- secondary recovery
: the process of obtaining oil (as by waterflood) from a well that has stopped producing
* * *extraction of oil or natural gas under artificially induced pressure after the natural flow has ceased. Cf. waterflood.[1935-40]
* * *secondary recovery,any method designed to take oil from a well that has nearly or completely stopped producing. Oilmen may inject gas or water into the reservoir to force the oil to a well where it is pumped to the surface.
Useful english dictionary. 2012.
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