大洼油田水淹层测井解释方法研究及应用

WELL LOGGING INTERPRETATION METHOD FOR THE WATER-FLOODED ZONE OF DAWA OILFIELD AND ITS APPLICATION

针对大洼油田沙三段低孔低渗油藏的特点,开展了以常规测井资料为主的水淹层测井解释方法研究。通过对测井资料、试油资料及生产动态资料的综合研究,建立了大洼油田沙三段油藏储层参数模型和水淹层定性评价方法,对区块内的薄层、超薄层进行细分水淹级别的精细解释,形成了一套水淹层综合解释与评价技术。经过与实际生产数据的验证与对比,符合率较高,证明了用本方法划分水淹层的正确性。

According to the reservoirs with low porosity and permeability in Sa 3 section of Dawa oilfield, researches are carried out on the well logging interpretation method for water-flooded zones based on conventional logging data.Through comprehensive study of logging data, testing data and production performance data, the reservoir parameter model of Sa 3 formation and qualitative evaluation method are established. The waterflooding grade of thin layers and super-thin layers in the area is subdivided. A set of integrated interpretation and evaluation technology for the water-flooded zones is set up.Through comparison of practical production data,the coincidence rate is high. It is proved that the method is valid in dividing water-flooded zones.