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Evidence Guide: PMAOPS434A - Commission wells and gathering systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

PMAOPS434A - Commission wells and gathering systems

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare for work

  1. Identify work requirements
  2. Identify and control hazards
  3. Coordinate with appropriate personnel
  4. Determine appropriate schedule and priorities for work
Identify work requirements

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Identify and control hazards

Completed
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Evidence:

 

 

 

 

 

 

 

Coordinate with appropriate personnel

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Determine appropriate schedule and priorities for work

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Accept handover of well and gathering system

  1. Ensure documents and other records provided match 'as is' plant and equipment
  2. Check all issues have been satisfactorily resolved
  3. Confirm status of individual items being handed over
  4. Ensure plant and equipment are operationally sound as appropriate
  5. Accept handover when appropriate
  6. Complete logs and reports as required
Ensure documents and other records provided match 'as is' plant and equipment

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Check all issues have been satisfactorily resolved

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Confirm status of individual items being handed over

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Ensure plant and equipment are operationally sound as appropriate

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Accept handover when appropriate

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Complete logs and reports as required

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Commission well

  1. Commission support systems
  2. Commission wellhead and components as required
  3. Make appropriate adjustments to bring well to stable operation
Commission support systems

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Commission wellhead and components as required

Completed
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Make appropriate adjustments to bring well to stable operation

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Commission gathering system

  1. Commission support systems
  2. Introduce product to gathering system
  3. Check all equipment is operating correctly
  4. Take appropriate action to solve problems
Commission support systems

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Introduce product to gathering system

Completed
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Check all equipment is operating correctly

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Take appropriate action to solve problems

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Monitor and adjust well and gathering system

  1. Take required readings
  2. Ensure telemetry and controls are functional as required
  3. Balance well and gathering system
  4. Adjust downhole pump speed to maintain correct liquid level
  5. Monitor nearby wells for impact of new well
  6. Complete site checks
  7. Liaise with relevant operational personnel as required
  8. Make appropriate adjustments to ensure new well is performing as required
Take required readings

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Ensure telemetry and controls are functional as required

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Balance well and gathering system

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Adjust downhole pump speed to maintain correct liquid level

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Monitor nearby wells for impact of new well

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Complete site checks

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Take required readings

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Liaise with relevant operational personnel as required

Completed
Date:

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Evidence:

 

 

 

 

 

 

 

Make appropriate adjustments to ensure new well is performing as required

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Finalise commissioning activities

  1. Complete commissioning tasks as appropriate
  2. Ensure identified faults are correctly logged/reported for action
  3. Ensure incomplete tasks are scheduled for follow up
  4. Ensure all logs and reporting are complete and understood
  5. Check all systems are operational and all relevant personnel are informed
Complete commissioning tasks as appropriate

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Ensure identified faults are correctly logged/reported for action

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Ensure incomplete tasks are scheduled for follow up

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Ensure all logs and reporting are complete and understood

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Check all systems are operational and all relevant personnel are informed

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

This unit of competency requires an application of the knowledge contained in the use of the equipment, to the level needed to maintain control and recognise and resolve problems.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessment for this unit of competency will be on a plant.

It is essential that the equipment be understood and that the importance of critical material properties, settings and readings is known. Competence must be demonstrated in the ability to recognise and analyse potential situations requiring action and then in implementing appropriate corrective action.

The emphasis should be on the ability to stay out of trouble rather than recovery from a disaster.

Consistent performance should be demonstrated. In particular look to see that:

early warning signs of equipment processes needing attention or with potential problems are recognised

the range of possible causes can be identified, analysed and the most likely cause determined

appropriate action is taken to ensure a correctly operating well and gathering system

obvious problems in wells are recognised and an appropriate contribution made to their solution.

Competence must be demonstrated in the operation of all ancillary equipment to the level required for this unit of competency.

Context of and specific resources for assessment

Assessment of this unit should include demonstrated competence on actual plant and equipment in a work environment. The unit will be assessed in as holistic a manner as is practical and may be integrated with the assessment of other relevant units of competency. Assessment will occur over a range of situations, which will include disruptions to normal, smooth operation.

Simulation may be required to allow for assessment of parts of this unit. Simulation should be based on the actual plant and include walk-throughs of the relevant competency components. Simulations may also include the use of case studies/scenarios, role plays and 3D virtual reality interactive systems. In the case of evacuation training or training for competencies practised in life-threatening situations, simulation may be used for the bulk of the training.

A bank of scenarios/case studies/what-ifs and questions will be required to probe the reasoning behind observable actions.

Method of assessment

In all plants it may be appropriate to assess this unit concurrently with relevant teamwork and communication units.

Individual enterprises may choose to add prerequisites and co-requisites relevant to their processes.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

Required Skills and Knowledge

Required skills

Required skills include:

recognising conditions which will lead to out of specification operation

implementing enterprise procedures within time constraints and in a manner relevant to the correct use of the equipment

conveying information relevant to the operation clearly and effectively

maintaining appropriate levels of quality assurance

reading and numeracy to interpret workplace documents and technical information

mathematics to the level of calculating volumetric flow rates and other process/equipment conditions (e.g. efficiency)

problem recognition and solving

Required knowledge

Required knowledge includes:

oil/gas formation, structure and completions for coal seam gas (CSG), traditional or other oil/gas formations

coal type and structure or other bedrock structures

well design and construction

hydrate formation

free flow and pumped wells

pumping principles

gas flow principles

gas/water separation principles

draining and venting requirements

typical issues causing problems and the resolution of those problems

lease requirements

process parameters and limits (e.g. temperature, pressure, flow and pH)

duty of care obligations

hierarchy of control

static electricity and earthing

corrosion control and chemical handling and material safety data sheets (MSDS)

communication protocols (e.g. radio, phone, computer, paper and permissions/authorities)

routine problems, faults and their symptoms and the corrective action to be taken

relevant alarms and actions

plant process idiosyncrasies

all items on a schematic of the plant item and the function/principles of operation, problem solving of each

physics and chemistry relevant to each unit and the processes used

flange pressure and temperature ratings (basic)

cathodic protection (basic)

relevant environmental and heritage requirements

protective systems

control systems

remote terminal unit, functions, operation and problems

downhole drawings (DHDs) and their application to plant/well operation

mathematical formulae and their application to well flow rates and plant operation/efficiency

pump, drivehead, fuel gas systems operations and principles

fluid dynamics and statics as relevant to the system

natural gas and oil characteristics as applicable

reservoir management

environmental aspects and conditions

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Procedures

Procedures may be written, verbal, computer-based or in some other form. They include:

all work instructions

standard operating procedures

formulas/recipes

batch sheets

temporary instructions

any similar instructions provided for the smooth running of the plant

For the purposes of this Training Package, 'procedures' also includes good operating practice as may be defined by industry codes of practice (e.g. Responsible Care) and government regulations

All work will comply with procedures

Site

Site may be:

a well

a nominated area in the gathering system

another location where the operator is required to work

Equipment

Typical items of plant and equipment included in this unit of competency are:

wellheads

flow lines

high point vents

low point drains

valves including non-return and pressure/vacuum relief

pumps and their prime movers

product separation units

instrumentation and control systems (variable speed drive (VSD) and proportional integral derivative (PID))

testing equipment

power units

drive heads

flares

Equipment condition and operation checks and adjustments

Equipment condition and operation checks and adjustments may include:

chemical injection equipment

field flares

storage tanks

pumps and pump speed

autodumps

drains and drain points

vents and high points

leaks

other items

valve operation

strainers (pump, line or other)

drive head power units, belt tension and hydraulic oil levels

fuel gas system/desiccant

corrosion control system/cathodic protection

control/float valves

Support systems and equipment

Support systems and equipment may include:

fuel gas

lubricating oil

check valves

control valves

remote terminal unit

telemetry (communications to base)

control systems

distributed control systems (DCS) screens

other systems and equipment

Product quality

Product quality may include:

product delivery variables, such as pressure

product delivery rate (flow rate)

moisture/water content

contamination

other items

Levels

Levels may include:

chemical storage levels

lubricating oil levels

water and gas levels

battery levels

drain levels

other levels

Interwell communications

Interwell communications include:

pressure

flow

other technical parameters

Well status

Well status includes interpreting data from:

well flows

flow rates, pressure and temperature

downhole conditions and information

Required calculations

Required calculations may include:

production figures

comparison of figures to targets

equipment efficiencies

Logs and reports

Logs and reports may be paper or electronic based and may also include verbal/radio reports

Reports include reporting items found which require action

Appropriate action

Appropriate action includes:

determining problems needing action

determining possible fault causes

rectifying problem using appropriate solution within area of responsibility

following through items initiated until final resolution has occurred

reporting problems outside area of responsibility to designated person

Identified faults

Identified faults may include:

instrumentation failure/malfunction

electrical failure/malfunction

mechanical failure/malfunction

control system failure/malfunction

mismatch between flow rates and system requirements

wear, tear and corrosion of plant and equipment

quality measurement inaccuracy (e.g. analyser or sampling deficiency)

Typical problems

Typical problems may include:

leakage

solids (formation fines)

vibration

loss of control of pressure and/or flow

hydrate formation and blockages

liquid slugging

corrosion

erosion

sulphate reducing bacteria

scale formation

equipment failure

change in product parameters (e.g. temperature, flow, pressure and level)

fouling or contamination

Health, safety and environment (HSE)

All operations to which this unit applies are subject to stringent HSE requirements, which may be imposed through state, territory or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between Performance Criteria and HSE requirements, the HSE requirements take precedence