薄层反射率反演技术在地震解释中的应用——以塔里木盆地先巴扎地区石炭系小海子组薄储层识别为例  

The Application of Thin Reservoir Reflectance Inversion Technology in Seismic Interpretation——By Taking the Thin Reservoir Identification of Carboniferous Xiaohaizi Formation in Xianbaza Area of Tarim Basin for Example

作　　者：廖茂辉 朱定 陈松 

机构地区：[1]中石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《长江大学学报（自然科学版）》2017年第11期27-31,共5页Journal of Yangtze University(Natural Science Edition)

摘　　要：地震解释中薄储层的识别是非常困难的,特别是在地震资料频率更低的深层。通常采用高精度地震资料采集、高分辨率地震资料处理等技术识别薄储层及特殊岩性体,但上述技术非常昂贵、周期长、效率低。薄层反射率反演技术是以叠后地震剖面为基础、分频技术为约束,无需建模、井控的叠后谱反演技术。该技术在消除地震子波影响的同时压制了高频端的噪声,能够得到高分辨率的反射系数剖面,提高了地震资料的分辨率,能有效识别薄储层。在塔里木盆地先巴扎地区石炭系小海子组薄储层识别中,薄层反射率反演技术效果显著,且降低了生产成本。The identification of the thin reservoir was very difficult in seismic interpretation,especially in the identification of thin reservoir in deep strata.In order to identify the thin reservoirs and extraordinary lithological bodies,the most common way was to used the technologies of high precision seismic data acquisition and high resolution seismic data processing,but these solutions were high cost and long operation time with poor efficiency.While the thin reservoir reflectance inversion technology was based on poststack seismic profile and constrained by the frequency division technology without modeling and without well control.This inversion technology could eliminate seismic wavelets and suppress the high-frequency noise for obtaining the reflection coefficient profile with high resolution,improving the interpretation resolution of seismic data and for effectively identifying the thin reservoirs.The inversion technology is very effective in identifying thin reservoir of Carboniferous System in Xiaohaizi Formation of Xianbaza Area in Tarim Basin,and also greatly reduces the cost of production.

关 键 词：反射率 薄储层 反射系数 谱反演 地震解释 

分 类 号：P631.44[天文地球—地质矿产勘探]