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1. 发明授权

US4026382A Repetitive detonation seismic surveying method and apparatus 失效
标题翻译：重复爆震地震勘测方法及装置
公开(公告)号：US4026382A
公开(公告)日：1977-05-31
申请号：US512035
申请日：1974-10-04
申请人： Harold S. Field , Donald K. Mitchell
发明人： Harold S. Field , Donald K. Mitchell
IPC分类号： G01V1/104 , G01V1/20 , G01V1/12 , G01V1/04
CPC分类号： G01V1/20 , G01V1/104 , Y10S181/401
摘要： This invention describes an apparatus and method for generating seismic waves in the earth for seismic geophysical prospecting. It involves a slender pipe open at the lower end, which can be driven into the earth to a shallow depth. The upper end is closed. Means are provided for introducing oxygen and acetylene through a pair of control valves and check valves, for a selected period of time. The oxygen and acetylene are mixed in the pipe and flow downward through the pipe and through the perforations into the earth, and fill the voids and fissures in the shallow sediments. Means are provided in the top end of the pipe to detonate the gas mixture. The detonation wave travels down the pipe and eventually reaches the openings at the lower end, and detonates the gas in the pores and fissures of the earth. The resulting explosion opens up the fissures and provides a larger void space than was there before. The seismic waves generated by the explosion are detected in the normal manner by means of transducers, cables, amplifiers, recorders, etc.The pipe is pressed further into the ground as the result of the expansion of the void space, and the operation of filling the void space with combustible gas and detonating the gas is repeated, until on each succeeding operation, the volume of gas introduced becomes large enough to create a seismic wave of sufficient intensity to provide a satisfactory seismic record.
摘要翻译：本发明描述了一种在地球上产生地震波用于地震地球物理勘探的装置和方法。它包括在下端开口的细长管，可以将其驱动到地球到浅的深度。上端关闭。提供了用于通过一对控制阀和止回阀在一段选定的时间内引入氧气和乙炔的装置。氧气和乙炔在管道中混合，向下流经管道并穿过穿孔进入地球，并填充浅层沉积物中的空隙和裂缝。装置设置在管道的顶端以引爆气体混合物。爆炸波沿管道行进，最终到达下端的开口，并引爆地球孔隙和裂缝中的气体。所产生的爆炸开裂裂缝，提供比以前更大的空隙。爆炸产生的地震波通过传感器，电缆，放大器，录像机等以正常方式进行检测。

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