Unit of competency Outline

Date retreived
22/07/2026 9:59 AM AWST

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Conduct horizontal directional drilling

Conduct horizontal directional drilling

Unit of competency
National Code
RIINHB323D
State Code
WH490
TGA Status
Current
DTWD Status
Approved
Current Release Number
2.00
Current Release Date
07/12/2014
View on TGA
State Implementation and Classification
Approved Date
29/05/2014
Field of Education
030303 - Mining Engineering
Original Release Date
29/05/2014
Nominal Hours
60
Description
This unit describes a participant’s skills and knowledge required to conduct horizontal directional drilling in Civil construction and Drilling. This unit is appropriate for those working in driller roles.No licensing, legislative or certification requirements apply to this unit at the time of publication
Notes
Elements and Performance Criteria
1. Plan and prepare for horizontal directional drilling
  • 1.1 Access, interpret and apply horizontal directional drilling documentation and ensure the work activity is compliant
  • 1.2 Obtain, read, interpret, clarify and confirm work requirements
  • 1.3 Identify and address potential risks, hazards and environmental issues and implement control measures
  • 1.4 Select and wear personal protective equipment appropriate for work activities
  • 1.5 Communicate and coordinate activities with others throughout the work activity
  • 1.6 Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
2. Bore pilot hole
  • 2.1 Carry out pre-start and start up procedures
  • 2.2 Identify, select and apply rig operational controls
  • 2.3 Select appropriate cutting tool and drilling rig/components
  • 2.4 Fit locating device to drill head and attach drill head to drill stem
  • 2.5 Align drilling head with survey tool and survey control system
  • 2.6 Drill pilot hole according to design alignment
  • 2.7 Monitor drill path ensuring pilot hole meets conformance envelope and dogleg severity is within limits
  • 2.8 Add drill stem sections as required
  • 2.9 Steer drill head to achieve required pitch and direction
  • 2.10 Monitor and interpret all gauge/dial readings
  • 2.11 Monitor and interpret drill fluid return and drill spoil
  • 2.12 Monitor and interpret drill head position and pitch
  • 2.13 Continually monitor hazards and risk, and ensure safety of self, other personnel, plant and equipment
  • 2.14 Maintain drill log and reports as required
3. Complete equipment maintenance and housekeeping
  • 3.1 Carry out shutdown and secure equipment
  • 3.2 Monitor wear on drill stem, particularly threads
  • 3.3 Carry out procedures to maintain down hole equipment
  • 3.4 Dress damaged threads or replace drill stem as required
  • 3.5 Check all equipment and hoses
  • 3.6 Monitor wear on drill heads and take required action
  • 3.7 Clean all equipment on completion of bore, ensuring environmental controls are followed
  • 3.8 Ensure drill fluid is appropriately contained/disposed of
  • 3.9 Ensure housekeeping activities are completed
  • 3.10 Process records
4. Respond to problems
  • 4.1 Identify possible problems in equipment or process
  • 4.2 Determine problems needing action
  • 4.3 Determine possible fault causes
  • 4.4 Rectify problem using appropriate solution within area of responsibility
  • 4.5 Follow through items initiated until final resolution has occurred
  • 4.6 Report problems outside area of responsibility to designated person
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