9540 version 4
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Isolate a petrochemical well and prepare it for wireline work
Level
4
Credits
4
Purpose
This unit standard applies to operational activities carried out on producing
wellheads.
People credited with this unit standard are able to: shut down and isolate a
petrochemical wellhead; check the integrity of the applied isolation; and
prepare a petrochemical well for wireline work.
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 and the following legislation:
Health and Safety in Employment Act 1992;
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).
 New Zealand Qualifications Authority 2016
9540 version 4
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3
Definitions
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.
Wireline means operating tools, by means of a winch and connecting wire running
into the well, to perform activities such as wax cutting, installing or removing valves,
retrieving items, and measuring pressures and temperatures.
Elements and performance criteria
Element 1
Shut down and isolate a petrochemical wellhead.
Performance criteria
1.1
Wellhead plant and equipment are confirmed as being in a safe condition in
accordance with site requirements.
1.2
Services to the wellhead are discontinued in accordance with site requirements.
1.3
Designated upstream and downstream plant and equipment are shut down to
isolate the wellhead and make the workplace safe.
1.4
The wellhead is shut down safely in accordance with site requirements.
1.5
Record of the shut down is made in accordance with site requirements.
1.6
In the event of any significant deviation from the norm, prompt action is taken to
minimise damage.
Element 2
Check the integrity of the applied isolation.
Performance criteria
2.1
Automatic safety systems are checked and verified in order to ensure the unit
has been made safe.
2.2
Checking with field based operators verifies both the nature and reliability of the
shut down.
2.3
Checking verifies that all residual materials have been removed from the plant.
2.4
Checking verifies that services to all areas of the wellhead remain isolated.
2.5
Checking verifies that all potentially affected areas of the wellhead remain in
shut down condition.
 New Zealand Qualifications Authority 2016
9540 version 4
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Element 3
Prepare a petrochemical well for wireline work.
Performance criteria
3.1
Plans necessary to satisfy requirements for wireline activities are completed.
Range
repair, replace, manufacture, assemble, remove, dismantle.
3.2
The plans clearly show the steps required to perform the wireline activity in
accordance with site requirements.
3.3
Priority, time needed, and time schedules to complete the wireline maintenance
are established with relevant personnel in accordance with site requirements.
3.4
Factors influencing priorities and time schedules are identified in accordance
with site requirements.
3.5
Personnel affected by the shut down are informed of wireline maintenance
activities that will disrupt normal work in accordance with site requirements.
3.6
Documentation and information specific to completing the maintenance, for
guidance and recording purposes, are obtained before the activity commences.
Range
instructions, drawings, specifications, authorisation, equipment
handover certificates, safety.
3.7
Steps to be considered should changes occur are described in accordance with
site requirements.
3.8
Health and safety requirements necessary for the completion of the wireline
maintenance are identified and assessed before the activity commences in
accordance with site requirements.
3.9
Communication is maintained with appropriate personnel during preparations in
accordance with site requirements.
Range
process personnel, maintenance personnel, stores personnel,
services personnel, subordinates, safety.
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.
 New Zealand Qualifications Authority 2016
9540 version 4
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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