Technical research to improve oil recovery rate of reservoir
becomes an important content of later reservoir development work
while reservoir development gets to high water cut middle and
later stage. The paper shows the leading technologies to reduce
the degression of the oil output , to improve the development
effect of the reservoir , to improve oil water-drive recovery rate
when the reservoir development gets to high water cut middle and
later stage , aiming at the contradiction of the big difference of
output degree between layers , the complexity of the distributing
rules of the residual oil and the problemof increasingly worsening
well situation that appears while the reservoir development reach
high cut water middle and later stage. Also the paper summarizes
the remarkable development effect made in the Machang Oilfield
development . It provides a good reference for the development of
the same or similar reservoir.
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