Unit of competency Outline

Date retreived
22/07/2026 8:20 AM 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.

Assist mud rotary drilling

Assist mud rotary drilling

Unit of competency
National Code
RIINHB211A
State Code
WB169
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
2.00
Current Release Date
29/05/2013
State Implementation and Classification
Approved Date
03/09/2010
Field of Education
030303 - Mining Engineering
Original Release Date
03/09/2010
Nominal Hours
20
Description
This unit covers assisting with mud rotary drilling in resources and infrastructure industries. It includes planning, preparing for and assisting with the drilling process, handling samples, mixing drilling fluids, carrying out basic maintenance of tools and equipment.
Notes
Elements and Performance Criteria
1. Plan and prepare for assisting with mud rotary 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
  • 1.5. Load, unload, move, handle, use and store rotary drilling equipment and all associated tools, sampling devices and connecting equipment
  • 1.6. Set up and stabilise pipe racks
  • 1.7. Wear all necessary personal protective equipment and protective clothing when assisting with rotary mud drilling
2. Support the rotary mud drilling process
  • 2.1. Fit and remove bits, reamers and stabilizers to and from the drill string
  • 2.2. Prepare drill string in readiness for tripping and drilling
  • 2.3. Add and remove drill pipe and collars from the drill string
  • 2.4. Inspect drill pipe, collars, bits, threads and associated equipment for damage
  • 2.5. Observe housekeeping and site safety measures while supporting rotary mud drilling operations
  • 2.6. Use pipe and casing handling equipment according to required procedures
3. Handle samples
  • 3.1. Take necessary safety precautions when handling potentially hazardous samples
  • 3.2. Obtain and/or lay out disturbed samples in accordance with workplace, drilling sector or site procedures
  • 3.3. Bag, properly label and store samples for transport according to requirements
  • 3.4. Clean and service sampling tools
  • 3.5. Store undisturbed samples for transport in accordance with standard procedures
4. Mix drilling fluids
  • 4.1. Wear appropriate protective clothing
  • 4.2. Check labels and read and interpret safety information, hazard codes and materials safety data sheets (MSDS)
  • 4.3. Apply correct mixing procedure for the drilling fluid
  • 4.4. Carry out storage of drilling mud components and additives safely and according recommendations
  • 4.5. Perform basic tests on the fluid and record and report the results
5. Carry out basic maintenance of tools and equipment
  • 5.1. Perform inspections and routine checks on ancillary equipment such as mud pumps, water delivery pumps and mud hoppers
  • 5.2. Perform inspections and basic maintenance pipe handling equipment
  • 5.3. Observe occupational health and safety procedures in carrying out equipment maintenance
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, organisation 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
Hazard may include:
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 rotating pipes
string makeup and breakout hazards
hazards with the use of grout mixers, pumps
Coordination requirements may include:
drill team members
other equipment operators
maintenance personnel
supervisors
worksite personnel
Personal protective equipment includes:
steel-capped boots and hardhat
gloves
dust mask
eye and hearing protection
general protective and reflective clothing
Pipe and casing handling equipment may include:
foot clamps (hydraulic or manual)
stilsons
break-out wrench
lifting plugs
C Spanner
clam shell
Samples may include:
disturbed/undisturbed samples
sludge samples
Label information may include:
Project number
Bore number
Depth interval
Sample description
Sampling method
Drilling fluids and additives may include:
polymers
bentonite
water/oil
soluble oil
lost circulation material
aerated mud
Basic tests on drilling fluid may include:
viscosity
mud weight
sand content
pH
salinity
filter press
Record keeping documents may include:
note book
plastic bags (write on)
undisturbed tubes
bore logs

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 mud rotary drilling
implementation of requirements, procedures and techniques for the safe, effective and efficient assisting with mud rotary drilling
working with others to undertake and complete the mud rotary drilling tasks that meets all of the required outcomes
consistent timely completion of assisting with mud rotary 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 the mud rotary drilling tasks
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.

Replaces
State Code National Code Title Type
W2153 DRTNHB15A Assist mud rotary drilling Unit of competency
Replaced By
State Code National Code Title Type
WH464 RIINHB211D Assist mud rotary drilling Unit of competency
No information