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 assisting with cable tool drilling

implementation of requirements, procedures and techniques for the safe, effective and efficient assisting with cable tool drilling

working with others to assist with cable tool drilling that meets all of the required outcomes

consistent timely assistance with cable tool drilling 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.

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

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.

Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or 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 and/or oral assessment of the candidate's required knowledge

observed, documented and/or first hand testimonial evidence of the candidate's:

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

consistent achievement of required outcomes

first hand testimonial evidence of the candidate's:

working with others to assist with cable tool drilling

Guidance information for assessment

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

Required skills

Specific skills are required to achieve the Performance Criteria of this unit, particularly for its application in the various circumstances in which this unit may be used. This includes the ability to carry out the following, as required to assist with cable tool drilling:

apply legislative, organisation and site requirements and procedures for assisting with cable tool drilling

identification of thread types in use on site

identification of bits in use and how to measure them

use of various rod handling equipment on site

refuelling operations on vehicles, drill rigs and ancillary equipment

identification of correct lubricants

correct handling of samples

good housekeeping principals

identification and mixing of drill fluids

identification of bits to suit differing ground conditions

Required knowledge

Specific knowledge is required to achieve the Performance Criteria of this unit, particularly for its application in the various circumstances in which this unit may be used. This includes knowledge of the following, as required to assist with cable tool drilling:

reasons for identification and care of samples including storage and transport

occupational health, safety and environment issues at AQF level 2 in the non-hydrocarbon drilling industry

cable tool drilling equipment, components and nomenclature

basic knowledge of bit types and their applications to different geological conditions

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Relevant compliance documentation may include:

legislative, organisational and site requirements and procedures

manufacturer's guidelines and specifications

Australian standards

code of practice

Employment and workplace relations legislation

Equal Employment Opportunity and Disability Discrimination legislation

Work instructions may come from briefings, handovers, plans and work orders and may be written or verbal, formal or informal and may include:

carrying out pre-start checks

fuelling vehicles, drill rigs and ancillary plant

lubricating plant and equipment as required

setting up ancillary plant under the direction of the driller

assisting in the make up/break out of tools

servicing down hole tools, including dressing bits

keeping collar of hole clear

constructing and maintaining drains, bunds and water collection areas

collecting and bag samples

driving truck and cart water as required

keeping all equipment clean and stored correctly

following good house keeping

washing vehicles and keeping them clean inside and out

travelling to town to obtain supplies as required

Hazards may include:

working in proximity to drilling rig

release of gases from formation or samples obtained

spread of contaminants as a result of drilling or cleaning processes

change in the chemistry of contaminants as a result of drilling and recovery of the core samples

working in proximity to drilling rig

entanglement in drill or bailing lines

string makeup and breakout hazards

hazards with the use of grout mixers, pumps

Coordination requirements may include:

other equipment operators

maintenance personnel

supervisors

site personnel

Measure may include:

bit diameters

clay/sand barrel diameters and lengths

Tools and equipment may include:

AWW casing

slimline casing

API tool threads

goldfields tool threads

southern cross tool threads

appropriate bits, shoes, clamps, casing, tools and lifting devices including:

spudding bits

undercutting bits

star bits

chisel bits

jars

drive clamps

casing lift/drive caps

make and break equipment including:

stilsons

hydraulic tong and pipe wrenches

break-out wrench

Casing type may include:

steel casing

PVC casing

Casing sealants may include:

urethane foam

cement

gypset

Handling equipment may include:

tool spanners

tool wrenches

slings

chain tongs

casing clamps

casing jacks

Samples may include:

samples from sand/clay barrels

sludge samples from the bailer

Drilling fluids and additives may include:

water

bentonite

polymer

barite

lost circulation material

Tests on the fluid may include:

viscosity

mud weight

use of marsh funnel and cup

Record/report documents may include:

note book

plastic bags (write on)

hole logs