摘要
Abstract
The attributes of the 3D seismic exploration system mainly include shot geophone distance,azimuth angle,cover-age number,non vertical offset,and horizontal and vertical ratio.Coal mines in Longdong have successively carried out 3D seismic exploration work in the advanced mining area(first mining area),and the adopted observation system has two types,one is the 10 lines and 10 shots beam rule observation system,and the other is the 8 lines and 20 shots beam rule observa-tion system.From the perspective of the attributes of the 3D seismic exploration system,the two observation systems have shortcomings such as relatively small horizontal and longitudinal,limited azimuth angle,and uneven shot geophone distance.The 10 lines and 25 shots beam rule observation system was proposed and designed.After the comparative analysis and stud-y of the shot detection range,azimuth,coverage times,non-longitudinal distance and horizontal longitudinal ratio of the three observation systems,it is realized that tthe designed 10 lines and 25 shots beam rule observation system has the advantages of all round observation,large horizontal longitudinal ratio and uniform shot detection range distribution.After practical ap-plication,the designed 10 lines and 25 shots beam rule observation system has good effect and prospect.关键词
观测系统/炮检距/方位角/覆盖次数/非纵距/横纵比Key words
observing systems/shot geophone distance/azimuth/number of coverages/non-longitudinal distance/horizontal longitudinal ratio分类
天文与地球科学
