An example beloved of the oil and gas industry is the injection of water into highly viscous oil in a porous rock (such as sandstone), which is a practical form of secondary oil recovery.
(An example beloved of the oil and gas industry; is; the injection of water into highly viscous oil in a porous rock (such as sandstone), which is a practical form of secondary oil recovery) (the injection of water into highly viscous oil in a porous rock (such as sandstone; is; a practical form of secondary oil recovery)
An example beloved of the oil and gas industry the injection of water into highly viscous oil in a porous rock (such as sandstone
is is
the injection of water into highly viscous oil in a porous rock (such as sandstone), which is a practical form of secondary oil recovery
a practical form of secondary oil recovery