Mich. Admin. Code R. 408.15757

Current through Vol. 24-22, December 15, 2024
Section R. 408.15757 - Perforating

Rule 5757.

(1) Devices containing an explosive, such as a perforating gun or sand line cutter, shall be handled only by qualified employees.
(2) Electrical grounding between the wellhead, service unit, and rig structure shall be made before operating a tool using an explosive. A periodic check shall be made to ensure that all units are grounded.
(3) All unnecessary employees shall be kept away from a perforating gun while the gun is being armed, placed in the well, removed from the well, and disarmed.
(4) A radar or radio transmitting unit shall not be operated within 200 feet of any perforating operation. Warning signs shall be posted or other appropriate measures shall be taken by the employer performing the perforating operation so that all radio transmitting units will be shut off within 200 feet of the perforating operations.
(5) The perforating operation shall be suspended or the loaded gun safely isolated if an electrical storm or severe wind is imminent in the job area.
(6) Only a galvanometer or safety meter approved by the institute of makers of explosives shall be used for checking the continuity of blasting cap circuits.
(7) Shortcuts, such as a circuit jumper or a wired around switch, shall not be used on perforating equipment.
(8) A circuit alteration shall not be made while a perforating gun is attached to the cable head, unless the gun is 100 feet or more down the wellbore.
(9) When checking cable continuity using service unit electric current (AC or DC), the cable head or end of the cable shall be located in the vicinity of the unit where the employee applying the current can see the cable head.
(10) Before arming a bullet or shaped charge gun, conductor wire and armor shall be temporarily shorted to eliminate any capacitance charge that may exist in the cable.
(11) Primacord shall be separated from a blasting cap before assembly on location. The cap and booster shall be crimped only with an approved crimper. Primacord shall be cut with primacord cutters or a sharp blade and shall never be cut with diagonal cutters.
(12) A blasting cap and unattached booster shall be transported in an approved cap box. Only the cap and booster for immediate use shall be removed from the cap box. The shunt on the cap leg wires shall remain in place until the cap is wired into the circuit.
(13) Upon completion of the perforating operation, the work area shall be inspected and all explosive materials and scraps shall be removed from the site by a qualified employee.

Mich. Admin. Code R. 408.15757

1979 AC; 1989 AACS