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Oil and gas recovery methods

Oil and gas recovery methods NV8Gg

Because primary recovery methods use the existing difference in pressure between the surface and the underground reservoir in order to convey oil to the surface, the primary recovery stage is believed to be more economical than the secondary or enhanced stages, which lead to oil and gas companies have to calculate the estimated ultimate recovery of a given field in order to determine whether extracting the resource is profitable

This phrase/word is too simple and can be replaced with:due to the factin light of the fact thatowing to the fact that
Because
 primary recovery methods This phrase/word (depending on the context) can be potentially replaced with :exploit
use
 the existing difference in pressure between the surface and the underground reservoir in order to convey oil to the surface, the primary recovery stage is believed
 to be more economical than the secondary or enhanced stages, which lead to oil and gas This phrase/word (depending on the context) can be potentially replaced with :enterprisescorporations
companies
This phrase/word is too simple and can be replaced with:ought to
have to
 calculate the estimated ultimate recovery of a This phrase/word (depending on the context) can be potentially replaced with :accorded
given
 field in order to determine whether extracting the resource is profitable