Comprehensive management of Ordovician reservoir in 6th block of Tahe Oil Field

Since the end of 2007,production has been decreasing due to theincrease of water contentinOrdovician reservoirin the 6th block of the Tahe Oil Field.Since May of 2009,comprehensive management has been carried outaiming at water control and production stabilization.As to Ordovician carbonate accumulation in the Tahe Oil Fieldpores and fractures work as reservoir.Characteristics of pore-and-fracture reservoir generationing treatments were put forward.Inand exploration in different wells were studied,and the correspondunits S66(water shutoff) and S74(water injected),the manage ment was practiced.