瞬时频率属性在沉积相研究中的应用-以白音查干凹陷西部腾格尔组为例  

APPLICATION OF INSTANTANEOUS FREQUENCY TO STUDY OF SEDIMENTARY FACIES OF TENGGEER FORMATION IN XILINHAOLAI AREA,BAIYINCHAGAN SAG

作　　者：王玲[1] 孙廷彬[1] 白静波[2] 李聪 

机构地区：[1]中国石油大学(华东)地学院,山东青岛266555 [2]中国石油勘探开发研究院,北京100083 [3]中国石油化工中原油田博士后工作站,河南濮阳457001

出　　处：《矿物岩石》2012年第2期81-85,共5页Mineralogy and Petrology

基　　金：中国石油化工股份有限公司项目(N0801058)

摘　　要：利用白音查干地区的测井、录井及地震资料。通过定性、定量两种手段进行瞬时频率与岩性的相关性分析,认为瞬时频率能够较好的区分砂泥岩。当砂岩百分比小于0.12时,瞬时频率属性为低频;当砂岩百分比为0.16～0.33时,瞬时频率为高频。通过瞬时频率切片与沉积相平面展布图对比分析发现,不同相类型的砂体在瞬时频率切片中具有明显不同的特征,辫状河三角洲砂体表现为沿物源方向延伸的枝状或朵状中高频区,滩砂表现为不规则滩状的高频区,坝砂在盆地边缘呈高频带状分布。此外,瞬时频率还可以进行物源分析、三角洲朵叶体识别和扇体叠置识别,是进行沉积体系、砂体展布和储层预测等方面研究的重要手段。The effect of instantaneous frequency properties in sedimentary facies and the correla- tion of instantaneous frequency properties and lithologic in Baiyinchagan region are studied by u- sing well logging and seismic data with qualitative analysis and quantitative analysis. It is showed that sand and shale can be distinguished through instantaneous frequency attribute. If the sand- stone percentage is less than 0. 12,the instantaneous frequency attribute appears as low frequen- cy, else if the sandstone percentage ranges from 0.16 to 0.33,the instantaneous frequency occurs as high-frequency. In addition, different types of sand body show different characteristics in the plane of the instantaneous frequency. Braided river delta sand body is manifested as dendritic or flower-shaped high frequency area extending along the source direction. Beach exhibits in high frequency region of the irregular-shaped beach. Dam showed a high frequency ribbon in the edge of the basin. Instantaneous frequency attribute can also analyze the source, identify the delta lobes body and recognize the overlaying fan bodies. Therefore,instantaneous frequency is a very effec- tive method for sedimentary system research, the sand body distribution and reservoir prediction.

关 键 词：白音查干凹陷 腾格尔组 瞬时频率 沉积相分析 砂体预测 

分 类 号：TE121.3[石油与天然气工程—油气勘探]