SZ36—1油田AI区天然水侵量估算

ESTIMATION OF WATER INFLOW IN AI AREA OF SZ36-1 OIL FIELD

SZ36－1油田AI区开发3年来产油量，气油比稳定，地层压力下降缓慢，在没有人工注水情况下，综合含水达到18．29％，说明边水起到了驱油作用，根据AI区生产动态数据，将油田假设为直线流系统，应用非稳定流法计算出水侵系数为106×10^4m^3/MPa，油水界面到天然水域外缘的距离约为27km。

Since the development of platform A1 of SZ36-1 oil field for 3 years,its oil production and gas-oil ratio have been stable,with formation pressure declining slowly,and the composite water cut of 18.29% without water injection. All these indicate that the edge water is effective for displacing oil.It is assumed,based on the geometry of the area under the control of platform A1 ,that there is a linear flow system in the oil field. The water inflowing factor is 106×104m3/MPa with the unstable flow method. And the external boundary of natural water is approximately 27km away from the oil-water contact.