Explosive loop cable cutter for oil and gas well

The utility model relates to an explosive loop cable cutter for a oil and gas well, which mainly solves the problem of cutting off a cable at an appropriate position in the well, and is characterized in that the upper end and the lower end in an axial eccentric hole of a cylindrical cutter body (1) are respectively provided with an upper circular plug (2) and a lower circular plug (2); circular gunpowder (4) is arranged in a circular space between the upper plug (2) and the lower plug (3); energy collecting sleeves (5) are arranged in the upper plug (2), the lower plug (3) and the gunpowder (4) ring; the cable passes through the energy collecting sleeves (5); one side of the cutter body (1) is provided with a bypass hole (6) which is communicated with the gunpowder (4) in the eccentric hole; the upper end of the bypass hole (6) is connected with a connector (7); and a fuse which is connected with the gunpowder (4) passes through the connector (7) and the bypass hole (6). The explosive loop cable cutter for th