METHOD FOR PRODUCING MULTIPLE BREAKAGES IN BORE-HOLE

摘要

FIELD: bore-hole drilling technology. SUBSTANCE: according to method, one operation is performed in one opening of bore-hole penetrating into breakage interval including multiplicity of zones crushing under different breakage pressure of various zones. Breaking liquid is delivered through alternative flow paths to various levels of isolated opening of bore-hole. Alternative flow paths are connected with operating pipe string located in isolated section of bore-hole opening. Alternative paths can be created of separate pipes or holes which are located along lower end of operating pipe string. EFFECT: high efficiency. 4 cl, 6 dwgt