松南扶余油层致密油藏地震资料保幅处理技术研究

发布时间：2018-01-06 10:34

本文关键词：松南扶余油层致密油藏地震资料保幅处理技术研究　出处：《东北石油大学》2015年硕士论文　论文类型：学位论文

【摘要】：本论文研究区域属于河流相沉积,河道非常发育,但河道砂体在纵向和横向相变较快,储层非均质性很强且储层致密,单砂体识别困难,这是制约该区扶余油层勘探、开发的最大难题。因此,本文研究内容对该区储层预测工作具有重要的意义。为了解决影响该区储层预测的问题,首先从原始资料入手,开展了针对该区的地震资料重新处理工作,解决针对复杂地质条件下采集的地震资料,进行保幅处理问题。本文主要采用了提高信噪比技术、能量补偿技术、静校正处理技术、提高分辨率技术、数据规则化技术、偏移成像技术等,通过这些技术的应用基本达到了预期的效果,有效的支持了松南扶余油层的勘探、开发工作。从最终处理成果来看,空间振幅校正技术和数据规则化技术改善了数据品质,它使叠前道集的能量更加均衡,消除了CRP道集远近道能量不均衡现象,提高了成像精度;再从提取的振幅属性来看消除了工区边界效应,增强了振幅的AVO响应;但从拓频前后剖面提取的振幅属性看,拓频处理对保幅性影响较大,因此,中浅层应以保幅处理为主,拓频处理为辅。本论文研究内容对吉林油田松南扶余油层的储层预测工作具有重要的意义,解决了制约储层预测的地震资料问题,储层预测的准确与否80%决定于地震资料,本文的一些处理方法对改善地震资料的品质起到了关键作用,使该区的地震资料具有可靠的实用性,因此,本论文中的重要的处理方法具有较好的推广应用价值。
[Abstract]:The study area belongs to fluvial facies, the river is very developed, but the channel sand body quickly in the longitudinal and transverse phase, reservoir heterogeneity is very strong and dense reservoir, single sand body identification difficult, which is restricting the area of Fuyu oil exploration and development, the biggest problem. Therefore, the contents of this paper have important significance for the prediction of reservoir. In order to solve the problem of reservoir prediction in this area, starting from the original data, carried out according to the seismic data to seismic data processing work, aiming at solving complex geological conditions were collected, preserved amplitude processing problems. This paper mainly uses the technology to improve the signal-to-noise ratio energy compensation, static correction technology, processing technology, high resolution technology, data regularization technology, imaging technology, through the application of technology has basically reached the expected effect, effectively support the Songnan Fu More than oil exploration and development. From the final processing results, spatial amplitude correction and data regularization technology to improve the data quality, it makes the pre stack energy is more balanced, the elimination of the CRP gathers far cut energy imbalance phenomenon, improve the imaging accuracy; from the elimination of amplitude attribute extraction the block boundary effect, enhances the amplitude of the AVO response; but since the amplitude attribute frequency before and after extraction section, broadening effect on the amplitude of large, therefore, in the shallow layer should be preserved amplitude processing, frequency broadening has important significance. As the research content of Fuyu reservoir in south Songliao Basin Jilin oilfield reservoir prediction, seismic data to solve the problems of reservoir prediction, reservoir prediction accuracy of the 80% depends on the seismic data processing method, some the key to improving the quality of seismic data to With that, the seismic data is practical and reliable, therefore, the important method in this paper has good application value.

【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P631.44;P618.13

【相似文献】