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Elements and Performance Criteria

1. Plan and prepare to assist sonic drilling
   • Obtain, interpret and confirm work requirements
   • Access, interpret and apply documentation required to conduct sonic drilling operations and confirm work activity is compliant
   • Identify and minimise environmental issues and potential hazards, and assess and address risks within scope of own role and according to workplace procedures
   • Select and wear personal protective equipment required for work activity
   • Communicate with other personnel at site according to work requirements and confirm briefings and handover details are communicated and received
   • Load, unload and move tools and equipment
   • Confirm adequate consumables are available for the drilling program
   • Confirm drill site is free of trip hazards
   • Connect water according to site requirements
2. Assist in sonic drilling process
   • Inspect core barrels, rods, casing, bits, threads and associated equipment for damage and fatigue from sonic vibration
   • Prepare drill string and casing string in readiness for tripping and drilling
   • Inspect rod handling equipment for damage and/or wear
   • Use mechanical lifting device to transfer drill rods and casing to/from rod handling equipment and/or mast
   • Assist driller in tripping rods and casing in/out of hole
   • Prepare sufficient poly bags, trays, and/or PVC splits for sample presentation
   • Assist driller to setup for sample retrieval
   • Designate appropriate area for sample placement and presentation
   • Confirm core barrel is not too hot to touch
   • Guide sample into polybag/tray/PVC split
   • Clearly label sample depth
   • Lay sample out in designated area for presentation

Performance Evidence

The candidate must demonstrate the ability to complete the tasks outlined in the elements, performance criteria and foundation skills of this unit, including evidence of the ability to:

assist sonic drilling on at least two occasions, including:

setting up and packing up of sonic drill site

retrieving, marking-up and laying out sonic sample

assisting in tripping rods and casing in and out of hole

inspecting core barrels, rods, casing, bits and other downhole equipment

During the above, the candidate must:

locate and apply legislation, documentation, policies and procedures required to assist sonic drilling

implement the requirements, procedures and techniques for assisting sonic drilling, including:

keeping work area clean

selecting and wearing required protective clothing and equipment

conducting pre-operational checks

reporting immediately any malfunction or equipment failure

work with others to assist sonic drilling that meets required outcomes, including:

organising work activities to meet all task requirements

communicating with others to receive and clarify work instructions

reporting regularly to and work as directed by the driller.

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Knowledge Evidence

The candidate must be able to demonstrate knowledge to complete the tasks outlined in the elements, performance criteria and foundation skills of this unit, including knowledge of:

key policies, procedures and established requirements for assisting sonic drilling, including those for:

work health and safety

emergencies

identifying hazards relevant to sonic drilling

environmental considerations

housekeeping

types of sonic core barrels, bits, casing and shoes (left hand and right hand threads)

line of fire hazards associated with sonic drilling sample removal.

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