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Elements and Performance Criteria

1. Plan and prepare to carry out well control and blow out prevention (BOP)
   • Obtain, interpret and confirm work requirements
   • Access, interpret and apply well control and BOP documentation and confirm the 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 activities
   • Calculate kill mud weight, pressure losses, drill stem and annular volumes, maximum allowable annular surface pressure (MAASP) and initial and final circulating pressures
   • Identify, interpret and respond to early warning signs of kicks and well going under-balance while drilling
   • Recognise kick indicators and apply kick detection methods and responses
2. Assess well control equipment and report and record faults
   • Identify the purpose, use of and relationship between equipment, indicators, counters and detection systems to determine fitness of equipment for well control
   • Identify flow paths for normal drilling operations and well control
   • Identify and apply well-control testing procedures and principles
   • Demonstrate primary equipment failure well shut-in procedures
3. Carry out well kill operations
   • Brief crew on well control procedures
   • Access and apply pre-recorded information
   • Identify, read, interpret and record pressures and gauge information and undertake corrective action as required
   • Determine and apply well kill procedures according to work requirements and workplace procedures
   • Apply trip kill sheet data and well-closure procedure when dealing with influx and shutting in a well
   • Calculate hydrostatic head at specific depths and apply required procedures when observing loss of circulation
   • Identify, interpret and apply required tripping methods and tests
   • Identify, interpret and apply stripping methods
   • Identify, interpret and apply recording and reporting procedures according to workplace procedures
   • Manage and communicate with crew during a well control emergency
4. Conduct housekeeping activities
   • Clean, check, perform maintenance on and store plant, tools and equipment
   • Report issues identified with plant, tools and equipment

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:

carry out well control and blow out prevention (BOP) operations on at least two occasions, including:

taking measurements, including:

penetration rate

circulating and pump pressure

rotary torque

hook load

active surface volume

frequency

making calculations and estimations, including:

pressure

density

volume

height (influx height)

velocity

length (influx length)

weight

total depth (TD)

total vertical depth (TVD)

interpreting gauges and graphs

detecting kick warning signs and indicators

completing trip and kill sheet records

monitoring drilling operations.

During the above, the candidate must:

locate and apply documentation, policies and procedures required for carrying out well control and BOP operations

implement the requirements, procedures and techniques for carrying out well control and BOP, including:

identifying, addressing and reporting potential hazards and risks

identifying, addressing and reporting environmental issues

preparing written records and reports

rectifying any identified faults and malfunctions within scope of own role and escalating where required

direct others to carry out well control and BOP that meets required outcomes, including:

resolving coordination requirements with others at the site prior to commencing and during work activities

preparing for and organising work activities to meet all task requirements

using a range of communication techniques and aids to advise others of work activity and exclusion zones.

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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 legislation required for carrying out well control and BOP operations

key policies, procedures and established requirements for carrying out well control and BOP operations, including those for:

setting up work activity

site isolation, signage and erecting barriers

work health and safety

environmental issues

selecting and checking plant, tools and equipment required to carry out tasks for faults

carrying out work to specifications

communication techniques relevant to work activities

using well control and auxiliary equipment

delegating roles and responsibilities of assistants

maintaining equipment

taking measurements, including:

penetration rate

circulating and pump pressure

rotary torque

hook load

active surface volume

frequency

shut in casing pressure

shut in drill pipe pressure

making calculations, including:

pressure

density

volume

height

velocity

length

weight

total depth (TD)

total vertical depth (TVD)

responding to emergency situations

controlling identified hazards

housekeeping

technical solutions for well control and BOP

kick detection methods and responses.

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