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Elements and Performance Criteria

1. Plan and prepare to carry out well control and blow out prevention
   • Access, interpret and apply well control and blow out prevention documentation and ensure the work activity is compliant
   • Obtain, read, interpret, clarify and confirm work requirements
   • Identify, address and report potential hazards, risks and environmental issues and implement control measures
   • Select and wear personal protective equipment appropriate to the work activities
   • Calculate 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 the 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 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
   • Determine and apply well kill procedures
   • Demonstrate correct application of 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 correct procedure when observing loss of circulation
   • Identify, interpret and apply correct tripping methods and tests
   • Identify, interpret and apply stripping methods
   • Identify, interpret and apply recording and reporting procedures
   • Manage and communicate with crew during a well control emergency
4. Conduct housekeeping activities
   • Clean, check, maintain and store plant, tools and equipment
   • Report issues identified with plant, tools and equipment

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 documentation, policies and procedures

implements the requirements, procedures and techniques for the safe, effective and efficient well control and blow out prevention including:

identifying, addressing and reporting potential hazards and risks

controlling identified hazards

identifying, addressing and reporting environmental issues

preparing written records and reports

rectifying and/or reporting faults and malfunctions

works effectively with others to undertake and complete effective well control and blow out prevention that meets all 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

demonstrates completion of well control and blow out prevention that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

taking measurements such as:

penetration rate

circulating and pump pressure

rotary torque

active surface volume

frequency

making calculations and estimations, including::

pressure

density

volume

height

velocity

length

weight

interpreting gauges, graphs

detecting kick warning signs and indicators

completing trip and kill sheet records

monitoring drilling operations

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Knowledge Evidence

The candidate must demonstrate knowledge in applying well control and blow out prevention through:

accessing, interpreting and applying legislative, organization and site requirements and procedures for:

setting up work activity

site isolation, signage and erecting barriers

work health and safety

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

carrying out work to specifications

standard working practices and procedures

correct methods to control identified hazards

technical solutions for well control and blow out prevention

kick detection methods and responses

using well control and auxiliary equipment

delegating roles and responsibilities of assistants

maintaining equipment

taking measurements and making calculations

responding to emergency situations

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