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Elements and Performance Criteria

1. Plan and prepare to assist with diamond core drilling
   • Obtain, read and confirm work requirements
   • Access, interpret and apply documentation required to assist diamond core drilling 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
   • Obtain and interpret emergency procedures and identify steps in case of fire, accident and other emergencies
   • Communicate with other personnel on site as required and confirm briefings and handover details are communicated and received
   • Load, unload, move, handle and store core drilling equipment and all associated tools, sampling devices and connecting equipment
   • Set up and stabilise racks
2. Support the core drilling process
   • Assemble core barrel components
   • Prepare drill string in readiness for tripping and drilling
   • Add and remove drill rods and core inner tubes
   • Inspect inner tube and core barrel regularly and replace worn and damaged components as required
   • Monitor hazards and risks and confirm safety of self, other personnel, plant and equipment
   • Use rod and casing handling equipment
   • Store and handle diamond tools according to workplace procedures
   • Dismantle inner tube for recovery of core samples
   • Take necessary safety precautions when handling potentially contaminated samples
   • Remove core samples from inner tube and place in core trays in required sequence
   • Record information on core marker blocks and core box
   • Take precautions and confirm no surface contamination of cores and delicate cores are preserved
   • Stack core boxes ready for storage and transportation
   • Clean and lubricate inner tube components and re-assemble in preparation for the next run
3. Mix, store and test drilling fluids
   • Check labels and read and interpret safety information and hazard codes
   • Apply required mixing procedure for the drilling fluid
   • Store drilling mud components and additives according to workplace procedures
   • Perform basic tests on drilling fluids and record and report the results
4. Carry out basic maintenance of tools and equipment
   • Perform inspection and checks on serviceability of core barrel components
   • Perform inspections and routine checks on ancillary equipment
   • Perform inspections and basic maintenance on rod handling equipment
   • Fit restraining devices to hoses

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 diamond core drilling on at least two occasions, including:

assembling core barrel components

preparing drill string in readiness for tripping and drilling

adding and removing drill rods and core inner tubes

dismantling inner tube for recovery of core samples

confirming required sequencing of core samples in core trays

applying required mixing procedure for drilling fluid.

During the above, the candidate must:

locate and apply documentation required to assist diamond core drilling

implement the requirements, procedures and techniques for assisting with diamond core drilling, including:

identifying and measuring core bits, reamer shells and related components

identifying thread types

identifying bits to suit thread types

storing diamond tools

using rod handling equipment and methods

adding and removing drill rods to the line string

complying with basic vehicle cleaning procedures

identifying and applying required lubricants

identifying and applying required handling of samples

conducting housekeeping

identifying and mixing drill fluids

conducting basic maintenance of mud and/or water delivery pumps

applying required lifting techniques

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

complying with reporting requirements and procedures

communicating with others to receive and clarify work instructions

communicating with others to meet coordination requirements prior to commencing and during work activities.

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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 and procedures and established requirements for assisting diamond core drilling, including those for:

work health and safety

relevant environmental practices

placing information on core boxes/core marker blocks

identifying and taking care of samples including during storage and transport

communicating with other personnel throughout work activities

handling core samples

storing, mixing and performing basic tests on drilling fluids

refuelling vehicles and equipment

preparing and using equipment

complying with safety data sheets (SDS)

inspecting, performing basic maintenance on and storing equipment

housekeeping

key factors affecting work activities described in performance evidence above, including:

mud pumps and their applications

fluid circulation system and its effect on hole integrity and sample quality

diamond coring equipment, components and system of names

drilling team roles and objectives.

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