The fault - block Wen 51 is a typical multi - zones
heterogenous complex reservoir. It was taken a long - time to
water flood development , which makes severe damage of
hole conditions and injection - production patten. The
remaining oil concentrared around the regions of damaged
wells、tall positions of fault - block、water injection cutting
regions ,and regions which water unswept inside the hold -
up areas in river - channel sand bodies. The tap production
potential of reservoir must depend on complete sets of
polytechnic methods to complete injection - production
patten ,enlarge the water - swept volume ,increase the water
- drive controlling reserve and producing reserve which to
enhance recovery of reservoir.
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