Safer saver sub removal

HWE Mining has won the highest accolade at this year's Safety & Health Innovation Awards for developing a new, safe way of removing a worn down saver sub from the spindle when drill rods are attached or removed.

HWE Mining has won the highest accolade at this year’s Safety & Health Innovation Awards for developing a new, safe way of removing a worn down saver sub from the spindle when drill rods are attached or removed.

The outcome of their endeavours was the insertion of a compression ring that takes on the load from the tightening of the threads, and can be burned out instantly to relieve the connection.

This modification provides a positive coupling and a safe, low energy decoupling of the drill string components. With safety, the new method avoids heavy lifting, working in a congested area, having to contend with excessive potential energy, hydraulic power and impact forces.

As a gesture of confidence all slap spanners, the 15kg tool originally used to do the job, have all been destroyed.

The Chamber of Minerals & Energy of Western Australia run the Safety & Health Innovation Awards.

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