INJECTION -- (Petroleum) -- Forcing gas or water into an oil well to increase pressure and cause more oil to come to the surface.
(INJECTION; Forcing; gas or water; into an oil well) (gas or water; to increase; pressure) (gas or water; to cause; more oil to come to the surface) Context(gas or water to cause,List([36, 96))):(more oil; to come; to the surface)
gas or water to cause,List([36, 96))
INJECTION gas or water gas or water more oil
Forcing to increase to cause to come
gas or water into an oil well
pressure
more oil to come to the surface
to the surface