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Replace faulty petrochemical wellhead equipment
Level
4
Credits
8
Purpose
This unit standard applies to operational activities carried out on producing
wellheads.
People credited with this unit standard are able to: establish the symptoms
and causes of petrochemical wellhead faults; prepare for the removal and
dismantling of petrochemical wellhead items and components; remove
petrochemical wellhead items and components; arrange for the repair of
petrochemical wellhead items and components; replace and commission
petrochemical wellhead components and component parts; assemble
repaired and replacement petrochemical wellhead components and
component parts; and adjust and test petrochemical wellhead component
parts in restored equipment.
Subfield
Petrochemical Industry
Domain
Petrochemical Well and Wellhead Operations
Status
Registered
Status date
20 February 2009
Date version published
20 February 2009
Planned review date
31 December 2013
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
(MITO)
Accreditation and Moderation Action Plan (AMAP) reference
0114
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Performance of the elements of this unit standard must comply with relevant site
requirements, manufacturer’s recommendations, instructions of the assigned
company engineer, and the following legislation:
Health and Safety in Employment Act 1992;
 New Zealand Qualifications Authority 2016
9537 version 4
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Resource Management Act 1991.
2
This unit standard is intended for, but is not limited to, workplace assessment. While
all performance criteria must be met it is noted that all range statements within this
unit standard are indicative and dependent on enterprise and site specific equipment,
procedures, and practices. Any queries can be directed to the NZ Motor Industry
Training Organisation (Incorporated) (MITO).
3
This unit standard applies to wellhead equipment above the master shut off valve on
the Christmas tree.
4
Definition
Site requirements mean the site specific documented methods for performing work
activities and include health, safety, environmental, and quality management
requirements. They may refer to manuals, codes of practice, or policy statements.
Elements and performance criteria
Element 1
Establish the symptoms and causes of petrochemical wellhead faults.
Range
three faults.
Performance criteria
1.1
Any reported symptoms of faults are verified without delay in accordance with
site requirements.
1.2
Preliminary checks and tests are completed to establish the causes of faults.
Range
1.3
Consequences of faults are identified in relation to plant efficiency.
Range
1.4
may include but is not limited to – breakdown, deviation,
continuous, intermittent.
immediate, long term.
Information concerning the symptoms and cause of faults is effectively
communicated to appropriate personnel in accordance with site requirements.
Range
oral, written, electronic.
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9537 version 4
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Element 2
Prepare for the removal and dismantling of petrochemical wellhead items and
components.
Range
three items and/or components.
Performance criteria
2.1
Authorisation procedures and instructions of the assigned company engineer
are located and referenced.
Range
instructions, drawings, specifications, authorisations, safety.
2.2
Health and safety requirements for the removal of items are described in
accordance with site and legislative requirements.
2.3
Resources are selected prior to commencement of maintenance activity.
Range
2.4
tools, equipment, auxiliary services, materials, personnel.
Ancillary services to facilitate the removal of items and components are agreed
upon with the assigned company engineer and consequent requirements are
coordinated with appropriate service people in accordance with site
requirements.
Range
lifting equipment, access equipment, support services.
2.5
Checks carried out to ensure that tools, materials, and equipment fit the
specified purpose are described in accordance with site requirements.
2.6
Isolations to complete the activity are carried out and checked to ensure
compliance with site requirements.
Range
equipment, auxiliary services, process, safety.
Element 3
Remove petrochemical wellhead items and components.
Range
three items and/or components.
Performance criteria
3.1
Disconnection of items and components minimises downtime and disruption to
production schedules and complies with instructions of the assigned company
engineer.
3.2
The removal of items minimises downtime and disruption to production
schedules.
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3.3
Removed items and components are identified, cleaned, transferred, and stored
in a safe, secure manner in accordance with site requirements and
manufacturer’s recommendations.
3.4
Site procedures for the housekeeping of the work area are followed.
3.5
Communication is maintained with appropriate personnel during maintenance
operations in accordance with site requirements.
Range
3.6
process personnel, maintenance personnel, services personnel,
maintenance supervision.
The release of substances to the environment during maintenance activity is
minimised in accordance with site and legislative requirements.
Element 4
Arrange for the repair of petrochemical wellhead items and components.
Range
three items and/or components.
Performance criteria
4.1
Documentation, for guidance and reporting purposes, is assembled in
accordance with site requirements.
Range
manufacturer’s information and recommendations, service
manuals, maintenance records.
4.2
Where required, repair advice or assistance is obtained from the manufacturer
in accordance with site requirements.
4.3
Specialist repairer is informed of requirements and timeframes in accordance
with site requirements.
Range
calibration.
4.4
Despatch and delivery details are recorded and confirmed with repairer in
accordance with site requirements.
4.5
Repaired equipment is checked when received and confirmed as being
operational in accordance with site requirements.
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Element 5
Replace petrochemical wellhead components and component parts.
Performance criteria
5.1
Ancillary services are coordinated to facilitate the replacement in accordance
with site requirements.
Range
lifting equipment, access equipment, transport.
5.2
Tools and equipment are used safely in accordance with site requirements.
5.3
Workplace procedures to confirm that replacement parts meet the specification
are located and used.
5.4
Action to be taken in the event of specified replacements not being available is
identified in accordance with site requirements.
5.5
Components and component parts are cleaned and protected in accordance
with manufacturer’s instructions.
5.6
Components and component parts are fitted to wellhead specification in
accordance with site requirements.
5.7
Site procedures for the housekeeping of the work area are explained and
followed.
5.8
Communication is maintained with appropriate personnel during replacement
operations in accordance with site requirements.
Range
process personnel, maintenance personnel, stores, manufacturer.
Element 6
Assemble repaired and replacement petrochemical wellhead components and component
parts.
Range
three components and/or component parts.
Performance criteria
6.1
The work instructions of the assigned company engineer are complied with.
6.2
Repaired and replacement parts used for assembly are accurately identified,
cleaned, and verified as being fit for purpose in accordance with site
requirements and manufacturer’s recommendations.
6.3
Tools selected for assembly are used safely in accordance with site
requirements.
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6.4
Repaired and replacement parts are assembled to wellhead specification.
Element 7
Adjust and test petrochemical wellhead component parts in restored equipment.
Performance criteria
7.1
Adjustments are made to the restored equipment to ensure it is compatible with
wellhead processes.
7.2
Methods of testing restored equipment are located and used.
Range
7.3
observation, test equipment.
Test equipment required for job at hand is identified.
Range
pressure, temperature, flow.
7.4
Tests related to the equipment are completed throughout assembly and
reinstatement.
7.5
Equipment restoration documentation and test records are completed in
accordance with site requirements.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the NZ Motor Industry Training Organisation (Incorporated) (MITO)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016