Required skills

Specific skills are required to achieve the performance criteria in this unit particularly for the application in the various circumstances in which this unit may be applied This includes the ability to carry out the following as required to conduct air drilling

apply legislative organisation and site requirements and procedures

apply prescribed thread form torque parameters during makeup of down hole equipment and consumables

apply correct internal and external callipers vernier rule and or tape measure for identification of drill piperod diameter wear limits measurement of bitsshrouds and other down hole equipment

apply correct measurement of drill string length

apply methods for calculating hole depth

Required knowledge

Specific knowledge is required to achieve the performance criteria of this unit particularly its application in a variety of circumstances in which the unit may be used This includes knowledge of the following as required to conduct air drilling

the importance to match like threads with like threads on all threaded components and make up torque requirements applicable to thread form in use

the relationship between pressure volume hole diameter pipe diameter and calculation of up hole velocity

drill pipe and rod and thread form wear limit parameters

the need for correct hole collaring use of casing and collar sealing techniques

TC bit sharpening procedures

potential problems related to inaccurate measurement and usage sequence of ground engaging consumables and related down hole components

hazard control measures to enable safe use of compressed air

the importance of monitoring sample quantity

the role that drill cuttings blockages play in affecting sample quality

safe procedures to clear down and up hole drill cuttings blockages within the outside hole return down hole equipment and up hole sample system andor hose

the critical need for correct fitting inspection and maintenance replacement of restraining devices

the hazards associated with the collection of high velocity drilling cuttings

the reason for checking inner tubes and inner tube sealing devices in RC drill pipe

hazards associated with wireline operations and applicable control measures

identification of various thread forms used in air drilling

identification of various inhole tools and correct application given ground conditions

the need for uncontaminated samples

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria required skills and knowledge and the range statement of this unit and include evidence of the following

knowledge of the requirements procedures and instructions for conducting air drilling

implementation of requirements procedures and techniques for the safe effective and efficient completion of air drilling

working with others to undertake and complete air drilling tasks that meets all of the required outcomes

consistent timely completion of air drilling tasks that safely effectively and efficiently meets the required outcomes

Context of and specific resources for assessment

This unit must be assessed in the context of the work environment Where personal safety or environmental damage are limiting factors assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance including task skills task management skills contingency management skills and job role environment skills

The assessment environment should not disadvantage the participant For example language literacy and numeracy demands of assessment should not be greater than those required on the job

Customisation of assessment and delivery environment to sensitively accommodate cultural diversity

Aboriginal people and other people from a non English speaking background may have second language issues

Assessment of this competency requires typical resources normally used in the work environment Selection and use of resources for particular worksites may differ due to site circumstances

Where applicable physical resources should include equipment modified for people with disabilities

Access must be provided to appropriate learning andor assessment support when required

Method of assessment

This unit may be assessed in a holistic way with other units of competency The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods

written andor oral assessment of the candidates required knowledge

observed documented andor first hand testimonial evidence of the candidates

implementation of appropriate requirement procedures and techniques for the safe effective and efficient achievement of required outcomes

consistently achieving the required outcomes

first hand testimonial evidence of the candidates

working with others to undertake and complete air drilling tasks

Guidance information for assessment

Consult the SkillsDMC User Guide for further information on assessment including access and equity issues

Relevant compliance documentation may include:

Work instructions may come from:

Hazards may include:

Coordination requirements may include:

Restraining devices shall include:

Restraining devices may also include:

Safe and serviceable condition will be:

Make up and break out equipment may include:

In-hole equipment may include:

Drill hole collar casing may include:

Outside hole return collar devices may include:

Drill rod and pipe handling equipment may include:

Drill bits may include:

Drilling parameters may include:

Drilling additives may include:

Personal protective equipment includes: