Determination of well adjustment methods after strata reorganization of block A

There are four layers of well networks in Block A, and each well pattern intersects with each other without independence. By July 1997, the water content in the block had reached 90.1%, and it had entered a special high water cut period. In order to solve the problems of long perforation interval length in the block, stratification of mining strata, complicated injection and mining relationships, and outstanding contradictions between the floors. Blocks are reorganized in 2013, and after the layer adjustment, the well length is shortened, each layer is mined independently; the number of injection and production wells is smaller after well pattern and well spacing adjustment, the direction of movement of oil and water is changed; the new injection and production wells are fine reservoirs descriptions. The description of remaining oil distribution adds new insights. Therefore, the determination of the boundary of water recharge parameters after reconstitution of block layers, the division of reasonable water injection intervals, and the adjustment direction of the interval segments are important means for improving the tracking adjustment effect and enhancing the recovery ratio after the reorganization of blocks.