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随着各大油田勘探开发的深入,充分认识深层油气特征并研究其解释评价方法已成为石油录井工作者的重要课题之一。针对大港油田歧口凹陷滨海地区深层油气特征,在分析录井评价深层油气所面临困难的基础上,围绕储集层气测录井的烃湿度比、烃斜率的纵向变化特征和与烃源岩的关系,研究了利用气测烃湿度比和烃斜率的纵向变化特征评价储集层是否含气的初步方法,探讨了结合储集层与烃源岩的烃湿度比和烃斜率的关系图识别油气层的问题,归纳了结合烃源岩的定量荧光录井的油性指数综合分析确定储集层流体性质的综合判断方法。该方法在大港油田歧口凹陷滨海地区BSH 22井深层油气的解释评价中效果显著,为大港油田岐口凹陷滨海地区深部储集层解释评价研究奠定了基础。
With the deepening of exploration and development in major oil fields, it is one of the important topics for oil logging workers to fully understand the deep hydrocarbon characteristics and to study its interpretation and evaluation methods. According to the characteristics of deep-seated oil and gas in the coastal area of Qikou Sag, Dagang Oilfield, based on the analysis of difficulties encountered in logging evaluation of deep-seated oil and gas, the paper surveys the hydrocarbon humidity ratio, the longitudinal variation of hydrocarbon slope, , The preliminary method to evaluate the gas accumulation in the reservoir by using the longitudinal change characteristics of the hydrocarbon ratio and the hydrocarbon slope is studied. The relationship between the hydrocarbon ratio of the reservoir and the hydrocarbon source rock and the slope of the hydrocarbon is also discussed This paper summarizes the comprehensive judgment method of determining fluid properties of reservoirs based on the comprehensive analysis of oily index of quantitative fludrrnent logging combined with source rocks. The method has significant effect in the interpretation and evaluation of deep well BSH 22 in the coastal area of Qikou Sag in Dagang Oilfield, which lays the foundation for the interpretation and evaluation of deep reservoirs in the coastal area of Qikou Sag, Dagang Oil Field.