OHS Code

Published Date: July 01, 2009
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Part 33 Explosives

Section 516 Oil well blasting

(1) This section applies to oil well blasting and perforating.

(2) An employer must ensure that perforating activities are done in accordance with practices approved by a Director of Inspection.

(3) A competent worker who is not a blaster may load perforating explosives, other than detonators, into a perforating gun or a down hole tool if the worker has readily available access to a blaster.

(4) An employer must ensure that a blaster is available to assist the worker referred to in subsection (3).

(5) An employer must ensure that a blaster

(a) detonates perforating explosives, including using a drop bar in a tubing-conveyed perforating firing system, and

(b) retrieves a perforating firing system from the well bore.

(6) Before and after a charge is fired, a blaster must ensure that the blasting machine is disconnected from the firing circuit by switching it to its “safe” or “unarmed” position.

(7) In the event that an armed explosive device is at the surface, a blaster must ensure that all power and electronic transmitting devices within 20 metres of the explosive device are turned off.