川东北元坝地区长兴组生物礁滩体系分频特征研究  

Spectral decomposition characteristics of reef- bank reservoirs of Changxing Formation in Yuanba area,northeastern Sichuan Basin

作　　者：许永哲[1,2] 王玉华 陈雷[1] 陆永潮[1] 

机构地区：[1]中国地质大学(武汉)构造与油气资源教育部重点实验室,武汉430074 [2]朝鲜金策工业综合大学资源探测学院 [3]内蒙古自治区第四地质矿产勘查开发院技术部,乌兰察布012000

出　　处：《石油实验地质》2013年第6期651-656,共6页Petroleum Geology & Experiment

摘　　要：川东北元坝地区二叠系长兴组生物礁滩埋藏深、横向变化大,用常规方法预测生物礁滩体描述困难。基于短时窗离散傅里叶变换的分频技术以及井震结合,确定了不同沉积相对应的频率范围,在此基础上刻画出了生物礁随频率变化的形态和平面展布特征,划分和确定了岩性油藏边界,为该区油气藏勘探提供了科学依据。In Yuanba area of the northeastern Sichuan Basin, the reef-bank is characterized by deep burial depth and great lateral variation, hence is method. Based on well-seismic calibration and spectral decomposition of sh form, the frequency range of different facies is figured reef complex changing with frequency are described scientific guiding for petroleum exploration. in the Permian Changxing Formation difficult to predict by conventional ort windowed discrete Fourier trans- out. The form and plane distribution of platform margin The boundary of lithologic reservoir is confirmed, providing

关 键 词：分频解释 短时窗离散傅立叶变换 生物礁滩 长兴组 元坝地区 

分 类 号：TE122.2[石油与天然气工程—油气勘探]