高分辨率勘探频谱整形滤波技术的计算机正演模拟  

Forward modeling of spectrum shape filter in high resolution seismic prospecting

作　　者：张鸿静[1] 田庆丰[2] 李婷婷[3] 官波[4] 

机构地区：[1]哈尔滨学院数学与计算机学院,黑龙江哈尔滨150086 [2]辽河石油职业技术学院,辽宁盘锦124013 [3]大庆石油学院地球科学学院,黑龙江大庆163318 [4]吉林石油集团有限责任公司测井公司,吉林松原138000

出　　处：《大庆石油学院学报》2007年第4期22-24,共3页Journal of Daqing Petroleum Institute

基　　金：黑龙江省科技攻关项目(GZ05A102)

摘　　要：为提高地震勘探的垂向分辨率,需在仪器记录之前对地层吸收衰减进行补偿.建立层状吸收介质模型,对理想、实际和整形滤波后的地震反射进行计算机正演模拟.结果表明：频谱整形滤波器对高频信号的补偿是很有限的,分辨率的提高效果并不明显,相对地层吸收衰减分辨率提高31.1%-39.1%.因此,有必要对现有的频谱整形滤波器进行改进,以改善对高频信号的补偿效果.In order to improve the seismic resolution the earth's absorption must be compensated.In this paper Spectrum Shape Filter(ssf) — the technology of I/O company is theoretically analyzed.A set of models are set up and based on those models forward modeling of ideal,real,and filtered seismic reflection is conducted.The results show that the amount compensated by ssf to high frequency is limited and the increase of resolution(31.1%～39.1% correspondingly) is not remarkable as well.So it is necessary to improve ssf to increase the compensation effect.

关 键 词：频谱整形滤波器 吸收 正演 分辨率 

分 类 号：P631.4[天文地球—地质矿产勘探]