一、基本情况南三区位于萨尔图油田中部,面积24.6平方公里,地质储量××××万吨,平均油层有效厚度9.8米,有效渗透率380—470毫达西,地下原油粘度9厘泊,地面原油比重0.86,原始地层压力103.7大气压,饱和压力83.2大气压。葡一组油层,于一九六五年三月投入开发,原采用两排注水井,中间夹三排油井,切割距3公里,注水井排距第一排油井为1000米,距中间井排为1500米,生产井井距500米,注水井井距300米,为使所有生产井都处于注水第一线,一九七三年开始将中间生产井排实行点状注水。整个开发层系,截止七五年五月,共有油井40口,注水井32口。二、开采效果 First, the basic situation South Third District is located in the central Saertu oil field, an area of ​​24.6 square kilometers, geological reserves × × × × tons, the average effective reservoir thickness of 9.8 meters, the effective permeability 380-470 millidarcy, underground crude oil viscosity 9% Po, the proportion of crude oil on the ground 0.86, the original formation pressure of 103.7 atmospheric pressure, saturated pressure of 83.2 atm. A group of Portuguese reservoirs, put into development in March 1965, the original two rows of water injection wells, the middle folder of three rows of oil wells, cutting 3 km away from the injection wells from the first row of oil wells to 1,000 meters from the middle row 1,500 meters, production well spacing 500 meters, water injection well spacing 300 meters, in order to make all the production wells are in the first line of injection, in 1973 the middle production wells began to implement point-like water injection. The entire development system, as of May 1975, a total of 40 wells, 32 wells injection. Second, the mining effect