论文部分内容阅读
平湖油气田原有地震资料为分块采集所得,信噪比与分辨率无法满足储层预测与油气检测的需要。针对该油田勘探开发的难点,通过优化地震采集处理参数,实施了基于品质参数对比的海上高密度三维地震采集技术,获得了高质量的地震资料,其信号能量与噪音能量之间的差异比原有资料提高了7.1 dB,同时有效频带宽度增加了32.2 Hz,目标层段垂向和横向分辨率也优于原始资料。基于该资料完成的平湖油气田宝石组储层预测及含油气性检测结果与实钻资料吻合较好,依据研究结果部署的多口探井获得成功,取得了重大的突破。
The original seismic data of Pinghu Oil and Gas Field is obtained by the sub-block acquisition. The signal-to-noise ratio and resolution can not meet the needs of reservoir prediction and oil-gas detection. According to the difficulty of exploration and development in this oilfield, high-density 3D seismic acquisition technology based on the comparison of quality parameters was implemented by optimizing the parameters of seismic acquisition and processing, and high-quality seismic data were obtained. The difference between signal energy and noise energy was lower than that of original There is an increase of 7.1 dB for the data and an increase of 32.2 Hz in the effective frequency band. The vertical and horizontal resolution of the target interval are also better than the original data. Based on this data, the geophysical reservoir prediction and hydrocarbon-bearing test results of the Gehuo Formation in Pinghu Oil and Gas Field are in good agreement with the real drilling data. The success of the multi-well exploration wells deployed based on the research results has achieved a major breakthrough.