拟声波重构技术在大民屯凹陷储层预测中的应用 |
| |
引用本文: | 徐振旺,雷文文,王晓光,朱孔斌,郭峰,刘太伟. 拟声波重构技术在大民屯凹陷储层预测中的应用[J]. 石油地质与工程, 2019, 33(1) |
| |
作者姓名: | 徐振旺 雷文文 王晓光 朱孔斌 郭峰 刘太伟 |
| |
作者单位: | 中国石油辽河油田分公司勘探开发研究院,辽宁盘锦,124010;中国石油辽河油田分公司勘探开发研究院,辽宁盘锦,124010;中国石油辽河油田分公司勘探开发研究院,辽宁盘锦,124010;中国石油辽河油田分公司勘探开发研究院,辽宁盘锦,124010;中国石油辽河油田分公司勘探开发研究院,辽宁盘锦,124010;中国石油辽河油田分公司勘探开发研究院,辽宁盘锦,124010 |
| |
基金项目: | 中国石油重大科技专项“辽河油田千万吨稳产关键技术研究与应用”;国家科技重大专项“渤海湾盆地北部油气富集规律与油气增储领域研究”子课题 |
| |
摘 要: | 大民屯凹陷沙四段储层主要为扇三角州沉积,近源混杂堆积、纵向厚度大,相带及岩性变化快,含油气井段长、差异大;地震资料分辨率低,声波测井曲线不能直接反映储层特征,常规地震反演很难识别砂砾岩的有利储层。针对上述问题,首先对地震资料进行了高分辨率处理,以满足后续地震反演的需求;然后对测井资料进行了预处理和敏感性分析;最后利用基于小波变换的拟声波重构技术构建拟声波曲线,并用拟声波曲线进行了地震反演研究。实际应用效果表明,拟声波重构技术可以明显提高储层预测的分辨率和精度,准确地刻画沙四下亚段砂砾岩体的有利储层。
|
关 键 词: | 大民屯凹陷 拟声波曲线重构 地震反演 储层预测 |
Application of quasi-acoustic reconstruction technology in reservoir prediction of Damintun sag |
| |
Abstract: | The 4~(th) member of the Shahejie formation in Damintun sag is mainly of a fan-delta sedimentation,with characteristics of mixed accumulation near source, large longitudinal thickness, fast change of facies zone and lithology, long oil-gas well segment and large difference. Due to the low resolution of seismic data, the acoustic logging curve cannot directly reflect reservoir characteristics, and the conventional seismic inversion is difficult to identify the favorable reservoir of conglomerate. Aiming at the problems mentioned above, the seismic data are processed with high resolution in order to meet the requirements of subsequent seismic inversion, and then the preprocessing and sensitivity analysis of logging data are carried out. Finally, the pseudo-acoustic reconstruction technique based on wavelet transform are used to construct the pseudoacoustic curve, and the pseudo-acoustic curve is used for seismic inversion research. The actual application results show that the quasi-acoustic reconstruction technology can significantly improve the resolution and accuracy of reservoir prediction, accurately depict the favorable reservoir of sandy gravel mass in the lower section of the 4~(th) member of Shahejie formation. |
| |
Keywords: | Damintun sag reconstruction of quasi-acoustic curve seismic inversion reservoir prediction |
本文献已被 CNKI 万方数据 等数据库收录! |
|