KLseis采集系统在复杂地表条件下资料采集中的应用
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摘要
东滩矿一采区范围内村庄较多,施工的12束地震测线都经过大小不同的村庄,为保证村庄下叠加次数达到设计要求,利用KLseis采集系统进行特观设计,具体为:在大、小中疃,由于目的层埋深在660m左右,故采用村外加大炮检距放炮的方法,在后屯和东、西程家庄,由于目的层埋深浅,最大炮检距不宜超过550m,因此采用村内小药量(0.3～0.5kg)放炮的方法,确保障碍物下煤层反射波有足够的叠加次数。
There are rather thick residential areas in the first panel of Dongtan mine,all 12 line bundles need to pass through villages large or small.To ensure stacking fold under villages can meet the design specification,we carried out shotpoint transferring through the use of KLseis recording system.The specific method is: In Datuan,Zhongtuan and Xiaotuan villages,since the target depth is around 660m,we used large offset shot outside the villages,while in Houtun,East Chengjiazhuang and west Chengjiazhuang because of shallow target depth,more than 550m large offset is inadvisable,so used small explosive shot(0.3-0.5kg) inside the villages for adequate stacking fold of coal seam reflection wave under the obstacles.
There are rather thick residential areas in the first panel of Dongtan mine,all 12 line bundles need to pass through villages large or small.To ensure stacking fold under villages can meet the design specification,we carried out shotpoint transferring through the use of KLseis recording system.The specific method is: In Datuan,Zhongtuan and Xiaotuan villages,since the target depth is around 660m,we used large offset shot outside the villages,while in Houtun,East Chengjiazhuang and west Chengjiazhuang because of shallow target depth,more than 550m large offset is inadvisable,so used small explosive shot(0.3-0.5kg) inside the villages for adequate stacking fold of coal seam reflection wave under the obstacles.
引文
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