Mich. Admin. Code 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.
Notes
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