RIINHB323D
Conduct horizontal directional drilling


Application

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


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

Evidence of Performance

Evidence is required to be collected that demonstrates a candidate’s competency in this unit. Evidence must be relevant to the roles within this sector’s work operations and satisfy all of the requirements of the performance criteria of this unit and include evidence that the candidate:

locates and applies relevant documentation, policies and procedures

implements the requirements, procedures and techniques for the safe, effective and efficient completion of conducting horizontal directional drilling including:

applying rig operating techniques

operating ancillary equipment

maintaining down hole equipment

works effectively with others to undertake and complete the horizontal directional drilling that meets all of the required outcomes including:

complying with written and verbal reporting requirements and procedures

communicating clearly and concisely with others to receive and clarify work instructions

communicating clearly and concisely with others to resolve coordination requirements prior to commencing and during work activities

demonstrates completion of conducting horizontal directional drilling that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

selecting appropriate cutting tool and drilling rig/components

aligning drilling head with survey tool and survey control system

monitoring drill path ensuring pilot hole meets conformance envelope and dogleg severity is within limits

steering drill head to achieve required pitch and direction

monitoring and interpreting all gauge/dial readings

monitoring and interpreting drill head position and pitch


Evidence of Knowledge

The candidate must demonstrate knowledge in conducting horizontal directional drilling through:

accessing, interpreting and applying the organization and site requirements and procedures for;

work, health and safety

environmental issues

operating drill rig

housekeeping

understanding the basic rock/geology types and their impact on HDD operations

appropriate drill heads for different geology types

appropriate back reamers for different geology types

minimum radius of curvature for drill stem and for different products

methods of steering or tracking the drill head

principles of horizontal directional drilling

types of drill fluid, their uses and make up/adjustment procedures

being prepared for fire/accident/emergency


Assessment Conditions

An assessor of this unit must satisfy the requirements of the NVR/AQTF or their successors; and Industry regulations for certification and licensing; and,

this unit must be assessed in the context of this sector’s work environment; and,

this unit must be assessed in compliance with relevant legislation/regulation and using policies, procedures, processes and operational manuals directly related to the industry sector for which it is being assessed; and,

assessment may be conducted in conjunction with the assessment of other Units of Competency; and,

assessment must confirm consistent performance can be applied in a range of relevant workplace circumstances; and,

assessors must demonstrate the performance evidence, and knowledge evidence as outlined in this Unit of Competency, and through the minimum years of current* work experience specified below in an Industry sector relevant to the outcomes of the unit; or,

where the assessor does not meet experience requirements a co-assessment or partnership arrangement must exist between the qualified assessor and an Industry subject matter expert. The Industry subject matter expert should hold the unit being assessed (or an equivalent unit) and/or demonstrate equivalence of skills and knowledge at the unit level. An Industry technical expert must also demonstrate skills and knowledge from the minimum years of current work experience specified below in the Industry sector, including time spent in roles related to the unit being assessed; and,

assessor and Industry subject matter expert requirements differ depending on the Australian Qualifications Framework Level (AQF) of the qualification being assessed and/or Industry Sector as follows:

Industry sector

AQF** Level

Required assessor or Industry subject matter expert experience

Drilling, Metalliferous Mining, Coal Mining, Extractive (Quarrying) and Civil Construction

1

1 Year

2

2 Years

Drilling, Coal Mining and Extractive (Quarrying)

3-6

3 Years

Metalliferous Mining and Civil Construction

3-6

5 Years

Other sectors

Where this Unit is being assessed outside of the Resources and Infrastructure Sectors assessor and/or Industry subject matter expert experience should be in-line with industry standards for the sector in which it is being assessed and where no Industry standard is specified should comply with any relevant regulation.

*Assessors can demonstrate current work experience through employment within Industry in a role relevant to the outcomes of the Unit; or, for external assessors this can be demonstrated through exposure to Industry by conducting frequent site assessments across various locations.

**Where a unit is being delivered outside of a Qualification the first numeric character in the Unit code should be considered to indicate the AQF level


Foundation Skills

Foundation skills essential to performance are explicit in the performance criteria of this unit. Further information is available in the Resources and Infrastructure Industry Training Package Companion Volume.


Sectors

Civil construction

Drilling