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南八仙油气田油气水分布关系复杂,储层识别率低。根据常规测井资料,利用中子—密度/声波时差重叠法、含氢指数法、测井气油比法、地层视电阻率绝对值法、电阻率侵入剖面法,结合试油试采资料,分析典型油气水层特征及低阻气层特征,能有效识别油气层,提高储层识别率。
The distribution of oil, gas and water in Nanbaixian oil and gas field is complex and the reservoir recognition rate is low. According to the conventional logging data, the neutron-density / acoustic time-lapse overlapping method, the hydrogen index method, the logging gas-oil ratio method, the formation apparent resistivity absolute value method and the resistivity intrusion profile method were used, Analysis of the characteristics of typical oil-gas aquifers and the characteristics of low-resistivity gas reservoirs can effectively identify the oil-gas reservoirs and improve the reservoir recognition rate.