The optimizing decision system for block2wide injection
profile and oil displacement is used in east2block S12
reservoir of Pucheng oilfield. The optimum design includes well
selection ,profile control and oil displacement agent decision ,
volume and section design ,operation pressure and discharge
capacity optimizing1Well selection makes use of a subjection
technology of fuzzy identification1Usage optimizing makes
use of oil reservoir simulation technology1By the optimizing
decision system ,twelve wells were selected for profile control
and oil displacement , and ten wells were operated1After
operation ,well results of oil production increasing and water
production decreasing have been obtained1The basis of
reservoir development was improved.