低爆速细长型震源药柱提高地震勘探分辨率
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摘要
提高地震勘探分辨率是一个系统工程,必须在野外采集、资料处理等方面采取各种不同手段,达到提高分辨率的目的。采用低爆速细长型药柱震源,在提高地震勘探分辨率方面具有特殊的效果。在研究中发现,同时接收纵波和转换横波,与高爆速炸药相比,低爆速细长型震源药柱可以有效地拓宽频带(纵波频带达220Hz以上),提高目的层反射波的主频(纵波主频达120Hz以上)。低爆速细长型震源药柱在地震勘探中的推广应用,必将有效地提地震勘探的分辨率。
Heighten seismic prospecting res olution is a systematic engineering, must u se different means on field collection and processing of informations, thereby reach the purpose to heighten resolution. There a re special effect on heighten seismic prosp ecting resolution, with explosive source o f low blasting speed and slender shape. In t he research found that receipt of longitudi nal wave and transform of shear wave meanti me, correlation with high blasting speed Ex plosive source, the explosive source of low blasting speed and slender shape may be eff ectively advanced-cut band(band of longitu dinal wave reach more than 220Hz), and heig hten reflection basic frequency of target s tratum (basic frequency of longitudinal wa ve reach more than 120 Hz). Spread applicat ion of explosive source of low blasting spe ed and slender shape in the seismic prospec ting, it will be sure to heighten effective ly seismic prospecting resolution.
引文
李庆忠.走向精确勘探的道路—高分辨率地震勘探系统工程剖析犤M犦.石油工业出版社,1993.
    俞寿朋.高分辨率地震勘探.石油工业出版社,1993
    李录明,罗省贤.多波多分量地震勘探原理及数据处理方法犤M犦.成都科技大学出版社,1997.
    石油物探局情报所.石油物探专题情报成果集(第三集)犤C犦.1986.

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