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在地震勘探生产过程中，砾石、流沙地区，一般采用挖坑放炮方式，由于打完井后，井壁容易坍塌，炸药放不到预定位置，而且这种方式接收条件差，激发井深达不到要求，所得到的地震资料品质差，不利于进行高分辨率地震勘探。通过采用三次改进后的打井钴县SZ－3，能按要求打井，炸药亦能下到预定深度，放炮后取得较好的地质资料，保证了施工质量，具有推广价值。
In the process of seismic exploration, the gravel and quicksand areas generally adopt the method of digging and blasting. Because the well wall collapses after the well is completed and the explosive can not reach the predetermined position, and the receiving condition is poor and the excitation well depth is not reached Requirements, the resulting seismic data quality is poor, is not conducive to high-resolution seismic exploration. By adopting the improved drilling SZ-3 of cobalt drilling well after drilling three times, the well can be drilled as required and the explosives can also be down to a predetermined depth, obtaining better geological data after blasting, which ensures the construction quality and has the promotion value.