Initial Working System of Adjusting Well in Double Ultra-high Marine Sandstone Reservoir
Oilfield A in the East of the South China Sea is a typical Marine sandstone oilfield.Since 1995,most of the oil reservoirs have entered the"double extra-high"stage of ultra-high water cut and ultra-high recovery degree.At present,the A oilfield in the East of the South China Sea has entered the late stage of high water cut development.In order to further tap the remaining oil of the oilfield and slow down the production decline of the oilfield,the production dynamics of 114 historical adjustment wells were analyzed,the distribution of remaining oil in the double ultra-high water cut period of the oilfield is studied,the main potential exploitation direction of the adjustment wells in the late period of high water cut is analyzed,and the reasonable initial working system range of the adjustment wells in the oilfield A group is analyzed by means of reservoir dynamic analysis and reservoir numerical simulation,and the working system optimization of the subsequent adjustment wells is guided.
working systemmarine sandstoneadjustment wellproduction pressure differencemaximum fluid volume
NETL
NSTL
万方数据
维普
