南泥湾油田长6储层四性关系研究

Study on 4-proporty Relationship of Chang 6 Reservoir in Nanniwan Oilfield

储层四性关系是油水层解释和储层评价的重要依据。通过收集南泥湾油田的测井、录井、岩心、分析化验和试油生产等资料,然后进行综合分析,对南泥湾油田长6储层四性关系进行了研究。结合测井曲线与岩心分析数据识别出高伽马砂岩和富碳酸盐砂岩,利用重叠图的方法快速识别出油、水层,利用交会图技术区分出常规油、水和干层,特别是区分出高阻水层和低阻油层。

4-proporty （lithology,electrical property,petro-physical property and oil-bearing property）relationship is the important basis for interpretation of oil and water beds and the evaluation of reservoirs. Through collecting the data of Nanniwan Oilfield such as the logging data, the core data, the analytical data, and the production testing data,etc., this paper makes comprehensive analysis and study on 4-proporty relationship of Chang 6 Reservoir in Nanniwan Oilfield, and connecting with logging curves and core data, distinguishes high gamma sandstone and carbonat-rich sandstone, and by using the overlay, identifies the oil and water beds, and with the help of cross plot technique,makes out the normal oil, water and dry reservoirs,especially the high resistance water reservoirs and low resistance oil reservoirs.