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Elements and Performance Criteria

1. Plan and prepare for milling operations
   • Access, interpret and apply compliance documentation and legislation and ensure the work activity is compliant
   • Obtain, confirm and apply work instructions for the allocated task
   • Identify, manage and report all potential hazards
   • Communicate emergency response and occupational health and safety requirements, including the possibility of wellbore influx and well control, to crew members
   • Resolve and maintain coordination requirements with others at the site prior to commencing and during work activities
   • Check, clean and lubricate equipment, including -top drive and swivel connections and rectify and report faults
   • Check Bottom Hole Assembly (BHA) requirements and assembly
2. Commence milling operations
   • Check drilling program requirements to ensure safe operations
   • Undertake milling operations in accordance with the well program
   • Monitor, maintain and record milling parameters in line with program
   • Calculate and maintain hole volume and conditions requirements and carry out and record integrity tests in line with milling program
   • Maintain accurate tubular tallies
   • Inspect and prepare tubing running tools and tubulars for operation
3. Maintain milling operations
   • Undertake preparations, and give assistance in drill stem tests and logging operations
   • Put arrangements in place for nippling-up and milling out
4. Prepare hole for next stage of program
   • Confirm program for next stage with operator representative
   • Check tools/equipment for integrity and record and report faults
   • Complete appropriate communication and written recording requirements

Performance Evidence

Evidence is required to be collected that demonstrates a candidate’s competency in this unit. Evidence must be relevant to the roles within this sector’s work operations and satisfy all of the requirements of the performance criteria of this unit and include evidence that the candidate:

locates and applies relevant legislation, documentation, policies and procedures

works effectively with others to undertake and complete preparation for well servicing milling operations that meets all of the required outcomes including:

complying with written and verbal reporting requirements and procedures

communicating clearly and concisely with others to receive and clarify work instructions

communicating clearly and concisely with others to resolve coordination requirements throughout work activities

demonstrates completion of conducting well servicing milling operations that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

identifying and confirming Bottom Hole Assembly and drilling program requirements

carrying out milling operations

calculating hole volumes, maintain as per milling program requirements

preparing for nippling-up and milling out

inspecting tools and record faults

processing written records and reports

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Knowledge Evidence

The candidate must demonstrate knowledge of conducting well servicing milling operations through:

accessing, interpreting and applying the organisation and site requirements and procedures

rig components

rig specifications

hole recovery procedures, including fishing, assembly service maintenance and tools

potential problems

down hole conditions

types of mud available

rigging and slinging

rig maintenance procedures

evacuation procedures

roles and responsibilities

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