High Efficient Development of Gas Cap Reservoir in Zone B of A Oilfield in the Eastern South China Sea
The B reservoir of A oilfield is a condensate gas cap reservoir first discovered in the eastern part of the South China Sea.How to effectively develop the reservoir becomes an urgent problem to be solved.In this paper,PVT phase state fitting,the gas well dynamic fitting,the reservoir fitting and the saturation of the passing well are fitted,using the digital model to optimize the development model,well type,well position and length,gas injection well position,reinjection amount,and gas injection timing.The results show that,the gas injection is more efficient than the vertical well development.The well position is in the middle of the reservoir,the depth of well is 400 meters,the closer the position is to the reservoir production well,the better the effect.The earlier the injection timing,the better the reinjection amount.It can be seen that gas injection technology is an effective method to improve the recovery efficiency of high water cut and high recovery degree reservoirs.In view of the flexibility and adaptability of cyclic gas injection technology,cyclic gas injection provides a new idea for the development of gas cap reservoirs in the eastern South China Sea.
gas cap reservoircirculating gas injectionefficient development
万方数据
维普
