Boosterless perforating gun and method of assembly

摘要: A method and apparatus for effecting the assembly arming a multisection perforating gun subterranean well. Each of sections has plurality vertically angularly spaced shaped charge containers disposed with primer ends located in concentric fashion about vertical axis gun, thus defining an axial passage communicating bores hollow nipples which respectively effect securement one section to next adjacent section. In modification, continuous cord is stored on reel below lowermost then pulled successively upwardly through each additional as they are assembled. another provided length fusible guide tubing interposed between inner all such charges fed downwardly defined by tubing. During sections, may be lowered into well so that when complete, surface before armed attachment booster charge.