高分辨率三维地震勘探技术及其应用  

HIGH RESOLUTION 3D SEISMIC EXPLORATION TECHNOLOGY AND ITS APPLICATION

作　　者：王建民[1] 勾永峰[1] 周志才[1] 许建军[1] 王兆湖[1] 

机构地区：[1]大庆油田有限责任公司钻探工程公司地球物理勘探一公司,黑龙江大庆163357

出　　处：《大庆石油地质与开发》2009年第5期281-287,共7页Petroleum Geology & Oilfield Development in Daqing

摘　　要：为满足松辽盆地北部薄互层储层不断勘探开发的需要，在以往研究的基础上以提高地震资料分辨率为核心，从地震资料采集、处理和解释3个环节的需求及存在的难点出发，针对激发宽高频地震信号、拓展地震资料有效频宽、提高构造和岩性解释精度等方面的关键技术开展了研究工作。经过研究攻关和大量试验，形成了一套适合松辽盆地北部薄互层沉积特点的高分辨率三维地震勘探技术系列，进一步提高了地震资料的分辨率和精度。该技术在松辽盆地广泛应用，大幅度提高了小断层、小幅度构造的解释精度以及砂岩预测、油气预测的精度，有效地保证了大庆油田油气储量任务的完成，促进了大庆油田油气勘探的良性循环。该技术同样适用于地质条件类似的其他薄互层沉积地区。To meet the requirement of continuous development in exploration and development of thin interbed in the north of Songliao Basin, based on the previous research, taking the improvement of seismic resolution as premise, starting from the requirements and difficulties in seismic acquisition, processing and interpretation, the key technology research was implemented in respects of shooting broadband and high-frequency seismic signal, extending effective bandwidth, and improving the interpretation accuracy of structure and lithology. Through numerous researches and experiments, a set of high resolution 3D seismic exploration technical system was established, which is suitable to the sedimentary features of thin interbed in the north of Songliao Basin, and makes a further improvement in the resolution and accuracy of seismic data. Through the wide application of this technology in Songliao Basin, the interpretation accuracy for small faults and low amplitude structure and the prediction accuracy for sandstone and hydrocarbon are significantly improved, effectively ensuring the submission of oil and gas reserves, and promoting the beneficial cycle of hydrocarbon exploration in Daqing oilfield. This technology is also appropriate for other thin-interbed sedimentary area with similar geologic conditions.

关 键 词：高分辨率三维地震 薄互层 储层描述 延迟激发 有效频宽拓展 模式识别预测储层和油气 

分 类 号：P613.4[天文地球—矿床学]