【摘要】 油气地球化学勘探是寻找CO2气藏的有效方法之一。通过分析东营凹陷花沟地区CO2气藏的化探指标特征,对化探异常进行了评价,结合地质和地震方法分析了化探异常的分布特点。结果表明,花沟地区的CO2气和CH4气具有不同的地球化学指标组合异常特征,在热蚀碳酸盐、荧光光谱及CO2气含量等指标上有明显的差异。综合异常评价表明,花沟地区整体处于地球化学异常高值区,该区西部具有较大的CO2气勘探潜力。更多还原

【Abstract】 Oil and gas geochemical exploration is an effective method to search for CO2 gas reservoirs. Abnormal geochemical exploration is evaluated and the distribution features of it are analyzed by geologic and seismic methods based on the feature analysis of the geochemical exploration indexes of CO2 gas reservoirs in Huagou area of Dongying Sag. The result indicates that there are obvious differences between CO2 and CH4 gas reservoirs on value of thermal etching carbonate, fluorescence spectrum and CO2 gas content in Huagou area. Comprehensive evaluation on abnormality presents that the anomaly geochemical data is higher in Huagou area and there is great potential to explore CO2 gas in the west of Huagou area.更多还原