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Prioritise and optimise well flows at a petrochemical wellhead
Level
4
Credits
19
Purpose
This unit standard applies to operational activities carried out on producing
wellheads.
People credited with this unit standard are able to: prioritise and optimise well
flows by monitoring and adjusting equipment and processes to set
parameters and product specifications; operate and manage petrochemical
well production equipment; measure and analyse petrochemical well
production; handle petrochemical product transfer from a wellhead; restore
required petrochemical process stream in the event of significant problems ;
and confirm the composition of the process stream or product flowing from a
petrochemical wellhead.
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:
Hazardous Substances and New Organisms Act 1996;
Health and Safety in Employment Act 1992;
Resource Management Act 1991.
 New Zealand Qualifications Authority 2016
9529 version 4
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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
Range
Well production equipment may include but is not limited to:
valves – ball, gate, safety, process control, non return;
displacement pumps – positive, centrifugal;
prime movers – diesel, gas engines, electric motors;
product separation units – de-watering tank, multi-phase, high pressure, low
pressure;
instrumentation – pressure control, flow control, pressure regulator, telemetry;
testing equipment – dynamometer, gas tester.
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
Prioritise and optimise well flows by monitoring and adjusting equipment and processes to
set parameters and product specifications.
Performance criteria
1.1
Process data is obtained at scheduled times and recorded in accordance with
site requirements.
1.2
Critical operating parameters for the operation of each unit are identified and
explained in accordance with site requirements.
1.3
Consequences of deviation from each of the critical operating parameters are
explained in accordance with site requirements.
1.4
Early indications of deviations are analysed and actions are identified to
maintain critical operating parameters.
1.5
Corrective actions to take in the event of deviations from each of the critical
operating parameters are demonstrated and explained in accordance with site
requirements.
Range
1.6
process adjustment, configuration change, request for assistance,
emergency shutdown.
Monitoring and adjustments are recorded according to site specific operational
and process requirements.
 New Zealand Qualifications Authority 2016
9529 version 4
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Element 2
Operate and manage petrochemical well production equipment.
Performance criteria
2.1
Management and operation of the equipment takes account of reservoir and
downhole characteristics to retain sufficient pressure for continuous production.
2.2
Production optimisation techniques are explained and applied to maintain
production.
Range
fluid dynamics and statics, natural gas and oil characteristics,
reservoir management and characteristics, static electricity
principles, flange, pressure and temperature ratings, corrosion
control and chemical handling, environmental aspects and
conditions.
2.3
Process control instrumentation is utilised in order to produce optimum amounts
of oil and gas to meet demand requirements.
2.4
Valves are operated to control and direct flows to meet demand requirements.
2.5
Services and contractors are liaised with during production phase in accordance
with site requirements.
Element 3
Measure and analyse petrochemical well production.
Performance criteria
3.1
Computer programmes and specific tables are used to determine and quantify
product volumes in accordance with site requirements.
3.2
Production data are collected and utilised to determine product flows.
3.3
Historical data and records are analysed in order to monitor and determine well
performance.
Element 4
Handle petrochemical product transfer from a wellhead.
Performance criteria
4.1
Basic separation of product is undertaken, ensuring that all required products
are placed into their respective product groupings, in accordance with site
requirements.
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4.2
Excess waste water resulting from the separation process is treated and
disposed of in accordance with site and legislative requirements.
4.3
Product is transferred to appropriate location for future processing or sale
maintained in accordance with site and legislative requirements.
4.4
Logs and records concerning the transfer are maintained in accordance with
site and legislative requirements.
Element 5
Restore required petrochemical process stream in the event of significant problems.
Performance criteria
5.1
Possible faults are investigated to determine the causes of the problems.
5.2
Faults and causes of operational problems are identified and remedial action is
described in accordance with site requirements and manufacturer’s
recommendations.
Range
significant deviations from quality specifications, departure of
process parameters from expected norms within plant history,
within candidate's area of control, within interrelated operational
areas.
5.3
Problems which cannot be remedied within the candidate's authority are
identified and reported in accordance with site requirements.
5.4
The remedial actions taken result in restoring normal conditions to the process
stream.
Range
5.5
adjustment, request for assistance, emergency shut down.
Actions taken are communicated and recorded in accordance with site
requirements.
Range
process, utilities, materials handling, laboratory.
Element 6
Confirm composition of the process stream or product flowing from a petrochemical
wellhead.
Performance criteria
6.1
Samples are obtained at the times specified in accordance with site
requirements.
6.2
Samples are confirmed as being representative of the process fluids to be
analysed in accordance with site requirements.
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6.3
Samples are labelled and processed in accordance with site requirements.
6.4
Results are interpreted to determine chemical composition to match product
specification and customer requirements.
6.5
Composition data are recorded to ensure that quality and customer
requirements are met.
Range
sampling data, results of analysis.
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