石油地球物理勘探2011，Vol.46Issue(3)：370-373,4.
祁连山山地地震勘探激发方法
宁宏晓 1张艳红 1章多荣 1蒋永祥 2焦文龙2
作者信息
- 1. 中国石油东方地球物理公司,河北涿州072751
- 2. 中国石油玉门油田分公司,甘肃酒泉736200
- 折叠
摘要
Abstract
The surface as well as the near surface litholo-gy in Qilian Mountainous area varies roughly. Seismic source in this kind of area often generates low signal to noise ratio data due to strong primary and secondary noises during seismic data acquisition. According to theoretical study and practical analysis,we propose the following applicable measures to improve seismic source; ① optimizing shot location in the horizontal direction such as putting shot points in low lying and flat site in the same li-thology area, avoiding shot points on ground fault zone in the strata exposed area, laying shot points away from old fault area and thick gravel and dry gullies of the Quaternary,etc. ; ② Shooting under the strong wave impedance interface,which can effectively reduce interference and enhance the effective energy; ③ Small charges can reduce linear noise and secondary noise. Our field practices show that these measures applied in complex Qilian mountainous area improve greatly the seismic data quality.关键词
激发因素/复杂山地/强波阻抗界面/信噪比/选点激发/激发层位Key words
source factors/complex mountains/strong wave impedance interface/signal-to-noise ratio/shot point optimization/source depth分类
天文与地球科学引用本文复制引用
宁宏晓,张艳红,章多荣,蒋永祥,焦文龙..祁连山山地地震勘探激发方法[J].石油地球物理勘探,2011,46(3):370-373,4.
