Unit of competency Outline
Date retreived
23/07/2026 10:01 PM AWST
23/07/2026 10:01 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Conduct underground in-seam directional drilling
Conduct underground in-seam directional drilling
Unit of competency
National Code
RIINHB316A
RIINHB316A
State Code
WB681
WB681
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
21/01/2011
Field of Education
030303 - Mining Engineering
Original Release Date
21/01/2011
Nominal Hours
60
Description
This unit covers the conducting of underground in-seam directional drilling in coal mines. It includes planning and preparing for drilling, calibrating and operating survey tool, drilling holes, and completing documents, reports, equipment maintenance and housekeeping.
Notes
Elements and Performance Criteria
1. Plan and prepare for conducting of underground in-seam directional drilling
- 1.1. Access, interpret and apply compliance documentation relevant to the work activity
- 1.2. Obtain, confirm and apply work instructions for the allocated task
- 1.3. Identify, manage and report all potential hazards
- 1.4. Resolve coordination requirements with others at the site prior to commencing and during work activities
2. Calibrate and operate survey tool
- 2.1. Calibrate survey tool in accordance with instructions
- 2.2. Set up the orientation of the survey tool and the down-hole motor in accordance with instructions
- 2.3. Take the first survey reading in accordance with manufacturer's instructions and with regard to the standpipe length and composition and use the result to adjust the orientation of the down-hole motor
- 2.4. Conduct on-going surveys at intervals in accordance with the drill plan and use the result to adjust the orientation of the down-hole motor
- 2.5. Monitor and maintain the survey tool power supply and basic consumable items as per instructions
3. Drill hole
- 3.1. Prepare for drilling in accordance with the drill plan
- 3.2. Choose drill bits appropriate to the geology
- 3.3. Issue clear and timely instructions to drill team members and others involved, for the safe, effective and efficient conduct of the task, to meet the requirements of drill plan
- 3.4. Carry out the drilling in accordance with the drill plan
- 3.5. Monitor and adjust drilling technique according to conditions
- 3.6. Identify and remedy operational problems
- 3.7. Reorientate the down-hole motor when branching is required to achieved required deviation of the hole
- 3.8. Maintain communication with all relevant personnel
4. Complete documents and report
- 4.1. Maintain drill log and plot drilling data
- 4.2. Download survey instrument data system and upload data to site and/or work computer system
- 4.3. Report data and drilling plots
5. Complete equipment maintenance and housekeeping
- 5.1. Ensure that the drill rods are inspected for wear and damage and that threads are dressed and greased in accordance with standard procedures or that rods are replace as required
- 5.2. Monitor all drill equipment and hoses and ancillary equipment and carryout remedial action
- 5.3. Monitor wear on drill bit and reamers and take appropriate action
- 5.4. Apply health, safety and environmental controls
- 5.5. Maintain safe and tidy site for the duration and at the conclusion of the job
- 5.6. Ensure all drilling equipment is cleaned and maintained
- 5.7. Ensure that drill fluids are appropriately contained and disposed of appropriately
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:
nature and scope of tasks
specifications
quality of finished works
achievement targets
operational conditions
obtaining of permits required
site layout
out of bounds areas
worksite inspection requirements
lighting conditions
plant or equipment defects
hazards and potential hazards
coordination requirements or issues
contamination control requirements
environmental control requirements
barricade and signage requirements
Hazards may include:
mining equipment
roof and rib spalls
the presence of gases and water
release of gases or water from formation
spread of contaminants as a result of drilling or cleaning processes
working in proximity to drilling rig
use of high air or hydraulic pressure for drilling operations
entanglement in rotating pipes
string makeup and breakout hazards
Coordination requirements may include:
drill team
other equipment operators
maintenance personnel
supervisors
mine personnel
Drill plan may include:
hole location, dip and direction
hole sizes
hole depths
site geology
specific drill bits required
frequency of surveys
frequency of floor and or roof hits
coring requirements
Drill bits may include:
PCD bits
tri-cone rock bits
tungsten bits
Instructions may include:
likely geology
purpose of the drilling
survey intervals
hole parameters
in-hole drill component requirements
Monitor may include:
gauge readings
colour and consistency of return water
down-hole motor penetration rate
vibration and noise levels
Drilling technique may include:
applied feed pressure
rotational speed
regulation of water pressure and volume
use of drilling agents for stabilisation or to enhance flushing (e.g. bentonite, polymers or pH adjusting agents)
Conditions my include:
variations in geology, including:
consistency of the coal
presence of stone (e.g. shale, sandstone)
presence of clay
faults and jointing
dykes
water and gas emissions from the drill face
variations in environmental conditions (e.g. ventilation)
Operational problems may include:
changing geological formations, particularly clay, rock or unstable or porous formations
loss of air or water volume or pressure
equipment failure
bogging or parting of rod string
loss of signal from down-hole survey tool
reliability of communications
Relevant personnel may include:
drill crew members
mine staff and supervisors
site safety personnel
statutory persons
Ancillary equipment may include:
pumps
water disposal lines and
ventilation equipment
Remedial action may include:
clear or remove obstructions
replace damaged hoses
top-up lubricants
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:
nature and scope of tasks
specifications
quality of finished works
achievement targets
operational conditions
obtaining of permits required
site layout
out of bounds areas
worksite inspection requirements
lighting conditions
plant or equipment defects
hazards and potential hazards
coordination requirements or issues
contamination control requirements
environmental control requirements
barricade and signage requirements
Hazards may include:
mining equipment
roof and rib spalls
the presence of gases and water
release of gases or water from formation
spread of contaminants as a result of drilling or cleaning processes
working in proximity to drilling rig
use of high air or hydraulic pressure for drilling operations
entanglement in rotating pipes
string makeup and breakout hazards
Coordination requirements may include:
drill team
other equipment operators
maintenance personnel
supervisors
mine personnel
Drill plan may include:
hole location, dip and direction
hole sizes
hole depths
site geology
specific drill bits required
frequency of surveys
frequency of floor and or roof hits
coring requirements
Drill bits may include:
PCD bits
tri-cone rock bits
tungsten bits
Instructions may include:
likely geology
purpose of the drilling
survey intervals
hole parameters
in-hole drill component requirements
Monitor may include:
gauge readings
colour and consistency of return water
down-hole motor penetration rate
vibration and noise levels
Drilling technique may include:
applied feed pressure
rotational speed
regulation of water pressure and volume
use of drilling agents for stabilisation or to enhance flushing (e.g. bentonite, polymers or pH adjusting agents)
Conditions my include:
variations in geology, including:
consistency of the coal
presence of stone (e.g. shale, sandstone)
presence of clay
faults and jointing
dykes
water and gas emissions from the drill face
variations in environmental conditions (e.g. ventilation)
Operational problems may include:
changing geological formations, particularly clay, rock or unstable or porous formations
loss of air or water volume or pressure
equipment failure
bogging or parting of rod string
loss of signal from down-hole survey tool
reliability of communications
Relevant personnel may include:
drill crew members
mine staff and supervisors
site safety personnel
statutory persons
Ancillary equipment may include:
pumps
water disposal lines and
ventilation equipment
Remedial action may include:
clear or remove obstructions
replace damaged hoses
top-up lubricants
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 of underground in-seam directional drilling
implementation of requirements, procedures and techniques for the safe, effective and efficient completion of conducting of underground in-seam directional drilling
working with others to undertake and complete the conducting of underground in-seam directional drilling that meets all of the required outcomes
consistent timely completion of conducting of underground in-seam directional 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.
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 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
consistently achieving the required outcomes
first hand testimonial evidence of the candidate's:
working with others to undertake and complete underground in-seam directional drilling
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.
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 of underground in-seam directional drilling
implementation of requirements, procedures and techniques for the safe, effective and efficient completion of conducting of underground in-seam directional drilling
working with others to undertake and complete the conducting of underground in-seam directional drilling that meets all of the required outcomes
consistent timely completion of conducting of underground in-seam directional 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.
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 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
consistently achieving the required outcomes
first hand testimonial evidence of the candidate's:
working with others to undertake and complete underground in-seam directional drilling
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| WH484 | RIINHB316D | Conduct underground in-seam directional drilling | Unit of competency |