| 关于煤炭三维地震勘探发展的几点思考 |
| |
| 引用本文： | 武喜尊.关于煤炭三维地震勘探发展的几点思考[J].中国煤田地质,2007,19(2):66-69. |
| |
| 作者姓名： | 武喜尊 |
| |
| 作者单位： | 中国煤炭地质总局,北京100039 |
| |
| 摘 要： | 根据中国煤炭地震勘探技术发展现状及趋势,提出了三维地震勘探技术今后应重点关注及开展研究的几个问题.提高地震勘探分辨率,首先要提高地震勘探反射波的频率,其次可考虑激发和利用低速波.采用小网格采集技术有利于小构造识别,使用该技术要考虑：一是目标地质体的大小尺度,二是针对倾斜层的最高无混叠频率,三是横向分辨率.利用多次覆盖技术提高地震波信噪比,针对地层倾角大、构造复杂地区,应使用叠前深度偏移处理技术.为提高矿藏及其构造的精细刻画与描述,改善成像质量,应加强开展单点地震勘探高密度采集技术的应用.
|
| 关 键 词： | 地震勘探 反射波频率 小网格采集技术 分辨率 叠前深度偏移 单点地震采集技术 |
| 文章编号： | 1004-9177（2007）04-0066-04 |
| 收稿时间： | 2007-03-08 |
| 修稿时间： | 2007年3月8日 |
Some Pondering on Coal 3D Seismic Prospecting Development |
| |
| Wu Xizun.Some Pondering on Coal 3D Seismic Prospecting Development[J].Coal Geology of China,2007,19(2):66-69. |
| |
| Authors: | Wu Xizun |
| |
| Institution: | China National Administration of Coal Geology, Beijing 100039 |
| |
| Abstract: | Based on status quo and development trend of coal seismic prospecting in China,the author brought forward some emphatic crucial parts and problems of 3D seismic prospecting need to carry out analyses for the future.To improve seismic prospecting resolution,first of all is to increase reflection wave frequency,then induce and use of low velocity waves need to be considered. Utilization of diminutive grid acquisition technique is propitious to identify minor structures.To use this technique,needs to pay attention to three aspects:target geologic body size,maximum mixing and stacking free frequency and transversal resolution.Use multiple coverage to improve seismic wave signal-to-noise ratio,as to high strata dip and complicated structure areas,prestack depth migration processing technique has to be used.For subtly depict ores and their structures,improve imaging quality,application of single-shot seismic prospecting high density acquisition technique ought to be strengthened. |
| |
| Keywords: | seismic prospecting reflection wave frequency diminutive grid acquisition technique resolution prestack depth migration single-shot seismic acquisition technique |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
