Concerning the Design of an Effective Shaped Charge for Oil Well Perforating

Current shape charge theory and experiment do not provide the requisite basis for the development of a slug-free charge suitable for oil well perforation. Considerations and experiments are discussed which have led to the design of a new type charge. Basically the charge has a thicker than conventional liner containing a low melting point metal which melts during collapse, forming a liquid slug which is dispersed.