高频能量衰减法油气预测技术研究及实现  

Research and Realization of High Frequency Energy Attenuation Method for Oil and Gas Prediction

作　　者：董建萍[1] 董国强[1] 公维民[1] 勾永峰[1] 李占林[1] 

机构地区：[1]大庆钻探工程公司地球物理勘探一公司,黑龙江大庆163357

出　　处：《石油管材与仪器》2016年第1期26-28,共3页Petroleum Tubular Goods & Instruments

摘　　要：提高油气预测精度一直是油气勘探与开发的迫切需求。地层含油气后对地震波吸收衰减增强,特别是高频成分,其响应特征为吸收系数增大、地震波主频降低、有效带宽减小、高频能量相对降低等。因此,可从时频谱上提取相关地震属性来进行油气预测。高频能量衰减法油气预测软件根据地层中含油气后对地震波吸收衰减增强来进行油气预测,经实际工区验证,各层段油气预测结果对井符合率较好。利用高频能量衰减法开展油气检测具有较高的预测精度。Improving the oil and gas prediction accuracy is an urgent demand for petroleum exploration and development. The absorption and attenuation of seismic wave will be enhanced in the formation with oil and gas,especially the high frequency components of the seismic waves. The response characteristics are that the absorption coefficient increasing,the main frequency of seismic wave decreasing,the effective bandwidth decreasing,and the high frequency energy decreasing. Therefore,the seismic attributes can be extracted from the time- frequency spectrum to predict oil and gas. The software of high frequency energy attenuation method can be used to carry out oil and gas prediction based on seismic wave absorption and attenuation enhancement in the formation with oil and gas. The actual working area test showed that the result of oil and gas prediction of each layer is good. So,using of the high frequency energy attenuation method can increase oil and gas detection with high prediction accuracy.

关 键 词：油气预测 高频能量 频谱衰减 吸收系数 

分 类 号：P631.4[天文地球—地质矿产勘探]