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Evidence Guide: RIINHB411D - Construct artesian (flowing) aquifer production bores

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

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RIINHB411D - Construct artesian (flowing) aquifer production bores

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

Plan and prepare for the construction of artesian (flowing) aquifer production bores

  1. Access, interpret and apply artesian (flowing) aquifer production bores construction documentation and ensure the work activity is compliant
  2. Obtain, read, interpret, clarify and confirm work requirements
  3. Identify and address potential risks, hazards and environmental issues and implement control measures
  4. Select and wear personal protective equipment appropriate for work activities
  5. Communicate and coordinate activities with others throughout the work activity
  6. Discuss scope of work with client and give technical advice, cost structure, workmanship warranty, quantity and quality of materials, construction standards and methods to be used and gain general agreement on drilling plan
  7. Provide detailed strata logs, pump and development test results conducted during bore development and water and strata samples to the appropriate authorities as required by the relevant State/Territory legislation/licensing agency
  8. Complete all requirements for bore completion reports, decommissioning or abandonment and send to regulatory authorities within the time specified on bore licence
  9. Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
Access, interpret and apply artesian (flowing) aquifer production bores construction documentation and ensure the work activity is compliant

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Obtain, read, interpret, clarify and confirm work requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and address potential risks, hazards and environmental issues and implement control measures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and wear personal protective equipment appropriate for work activities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Communicate and coordinate activities with others throughout the work activity

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Discuss scope of work with client and give technical advice, cost structure, workmanship warranty, quantity and quality of materials, construction standards and methods to be used and gain general agreement on drilling plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Provide detailed strata logs, pump and development test results conducted during bore development and water and strata samples to the appropriate authorities as required by the relevant State/Territory legislation/licensing agency

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete all requirements for bore completion reports, decommissioning or abandonment and send to regulatory authorities within the time specified on bore licence

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design production bores for artesian aquifer systems

  1. Determine most appropriate construction methods from the reading and interpretation of all available documented information
  2. Design the bore to ensure the exclusion of unsuitable waters and to prevent the inter-mixing of aquifers with different water quality and/or Standing Water Levels
  3. Determine a drilling fluid program to suit the expected down-hole conditions and anticipated pressures
  4. Select a bore site that will prevent contamination and minimise interference with other bores and that is safe with respect to potential occupational health and safety hazards
  5. Select likely water entry mechanism from the formation to the bore such as open hole, slotted casing screens, gravel packs
  6. Calculate appropriate artificial pack design parameters, and recommended annular thicknesses required
  7. Undertake calculations to determine appropriate screen/slot design parameters (e.g. diameter, length, aperture size)
  8. Plot and interpret sieve analysis results onto graphs
  9. Select appropriate bore/surface casing types, size, strength and wall thicknesses for the anticipated ground/water quality and pressure conditions and any construction requirements
  10. Ensure all necessary materials anticipated for the job are available and on site prior to commencement of construction phase
Determine most appropriate construction methods from the reading and interpretation of all available documented information

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design the bore to ensure the exclusion of unsuitable waters and to prevent the inter-mixing of aquifers with different water quality and/or Standing Water Levels

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine a drilling fluid program to suit the expected down-hole conditions and anticipated pressures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select a bore site that will prevent contamination and minimise interference with other bores and that is safe with respect to potential occupational health and safety hazards

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select likely water entry mechanism from the formation to the bore such as open hole, slotted casing screens, gravel packs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate appropriate artificial pack design parameters, and recommended annular thicknesses required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake calculations to determine appropriate screen/slot design parameters (e.g. diameter, length, aperture size)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Plot and interpret sieve analysis results onto graphs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select appropriate bore/surface casing types, size, strength and wall thicknesses for the anticipated ground/water quality and pressure conditions and any construction requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ensure all necessary materials anticipated for the job are available and on site prior to commencement of construction phase

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct production bores in artesian aquifer systems

  1. Carry out any pre-start and start up procedures
  2. Identify, select and apply rig operational controls
  3. Select, slot, assemble and insert casing and screens suitable for the formations in which they are deployed
  4. Select, mix and place grout or otherwise seal surface casing from 10 m into competent impermeable strata and back to the surface with a minimum sheath thickness of 20mm above maximum shoe of coupling joint diameter size
  5. Conduct grouting operations to seal intermediate and/or inner production casing strings with a 15mm minimum thickness grout sheath or to seal selected zones so that the water from the production bore is drawn from one primary formation only, (unless otherwise allowed by the permit)
  6. Construct bore in accordance with any applicable regulations, minimum construction requirements and the organisation’s internal procedures
  7. Use and maintain drilling fluids and additives within the manufacturer’s recommendations and that are non toxic and capable of complete removal from the bore upon completion
  8. Maintain, test and record fluid properties such as viscosity, mud weight, filtration and sand content so that the potential capacity, efficiency or quality of the bore is not affected
  9. Maintain plumbness and alignment of the hole within the required limitations and carry out a plumbness test where required
  10. Prepare for and recognise symptoms of a formation kick and take action to control the bore
  11. Collect, store, record, label and transport formation samples in accordance with licensing requirements
  12. Collect, test, store, record, label and transport water samples for chemical analysis in accordance with licensing requirements
  13. Maintain all records accurately and legibly
  14. Arrange for geophysical logging tools to be run in bore if required
  15. Accurately calculate hole, annular fill or pack materials and mud pit volumes in cubic metres or litres
  16. Determine aquifer formation grain size distribution from sieve analysis and interpret appropriate gravel pack and screen slot aperture dimensions for gravel packed wells
  17. Select appropriate gravel pack materials
  18. Place artificial pack material in a manner that will ensure uniform distribution in the annular space without bridging
  19. Comply with relevant workplace occupational health and safety requirements for both the drilling equipment and construction materials
  20. Remove drilling fluids from the bore to allow subsequent development
  21. Maintain tool string inventories
  22. Construct headworks for the bore including isolation valves to retain/control artesian flow and to permit independent testing of both pressure and flow without interference to reticulation system
  23. Identify and protect headworks of the bore
  24. Construct headworks to seal and cap the bore from surface water pollutants, environmental concerns and damage
  25. Dispose of/neutralise wastewater or hazardous materials from site and complete restoration of the bore site camp facilities
Carry out any pre-start and start up procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify, select and apply rig operational controls

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, slot, assemble and insert casing and screens suitable for the formations in which they are deployed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, mix and place grout or otherwise seal surface casing from 10 m into competent impermeable strata and back to the surface with a minimum sheath thickness of 20mm above maximum shoe of coupling joint diameter size

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct grouting operations to seal intermediate and/or inner production casing strings with a 15mm minimum thickness grout sheath or to seal selected zones so that the water from the production bore is drawn from one primary formation only, (unless otherwise allowed by the permit)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct bore in accordance with any applicable regulations, minimum construction requirements and the organisation’s internal procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use and maintain drilling fluids and additives within the manufacturer’s recommendations and that are non toxic and capable of complete removal from the bore upon completion

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain, test and record fluid properties such as viscosity, mud weight, filtration and sand content so that the potential capacity, efficiency or quality of the bore is not affected

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain plumbness and alignment of the hole within the required limitations and carry out a plumbness test where required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare for and recognise symptoms of a formation kick and take action to control the bore

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect, store, record, label and transport formation samples in accordance with licensing requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect, test, store, record, label and transport water samples for chemical analysis in accordance with licensing requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain all records accurately and legibly

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Arrange for geophysical logging tools to be run in bore if required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Accurately calculate hole, annular fill or pack materials and mud pit volumes in cubic metres or litres

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine aquifer formation grain size distribution from sieve analysis and interpret appropriate gravel pack and screen slot aperture dimensions for gravel packed wells

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select appropriate gravel pack materials

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Place artificial pack material in a manner that will ensure uniform distribution in the annular space without bridging

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Comply with relevant workplace occupational health and safety requirements for both the drilling equipment and construction materials

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove drilling fluids from the bore to allow subsequent development

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain tool string inventories

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct headworks for the bore including isolation valves to retain/control artesian flow and to permit independent testing of both pressure and flow without interference to reticulation system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and protect headworks of the bore

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct headworks to seal and cap the bore from surface water pollutants, environmental concerns and damage

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dispose of/neutralise wastewater or hazardous materials from site and complete restoration of the bore site camp facilities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop bore

  1. Use development techniques with care to prevent collapsing of casing or screens
  2. Use development techniques with care to prevent collapsing of casing or screens
  3. Undertake development until a continuous, clean supply if water is obtained, in accordance with acceptable and practical limits set by site, contractual or regulatory requirements
  4. Measure/ calculate and record standing and drawdown water levels
  5. platform pump and or development tests to estimate the sand content and sustainable yield of the bore
Use development techniques with care to prevent collapsing of casing or screens

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use development techniques with care to prevent collapsing of casing or screens

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake development until a continuous, clean supply if water is obtained, in accordance with acceptable and practical limits set by site, contractual or regulatory requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure/ calculate and record standing and drawdown water levels

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

platform pump and or development tests to estimate the sand content and sustainable yield of the bore

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Disinfect/decontaminate bore and drilling equipment

  1. Disinfect/decontaminate to comply with relevant standards or regulatory requirements
  2. Handle hazardous chemicals in accordance with safety data sheets (SDS)
Disinfect/decontaminate to comply with relevant standards or regulatory requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Handle hazardous chemicals in accordance with safety data sheets (SDS)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out bore maintenance and rehabilitation

  1. Carry out and shutdown procedures and secure
  2. Undertake a process of diagnosis to determine likely cause of bore deterioration
  3. Devise a program of rehabilitation to ensure that the bore is restored to a reasonable condition
Carry out and shutdown procedures and secure

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake a process of diagnosis to determine likely cause of bore deterioration

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Devise a program of rehabilitation to ensure that the bore is restored to a reasonable condition

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Decommission artesian wells with flowing and/or non-flowing elements

  1. Determine suitable decommissioning procedures and select appropriate materials
  2. Carry out the decommissioning (abandonment) of artesian aquifer bores, using min 20m long cement plugs sufficient to stem the flow between aquifers both from inside and outside the casing, (slot casing as necessary) or to separate aquifers of differing water quality from each other
  3. Place cement bridges at the top of the surface casing and at the surface casing shoe
  4. Verify position/location of hole for future reference
  5. Dispose of drill and other fluids safely
  6. Record entire decommissioning procedure and details of bore cementing
  7. Complete bore completion report and submit to State/Territory Water Authority
  8. Carry out housekeeping requirements
Determine suitable decommissioning procedures and select appropriate materials

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out the decommissioning (abandonment) of artesian aquifer bores, using min 20m long cement plugs sufficient to stem the flow between aquifers both from inside and outside the casing, (slot casing as necessary) or to separate aquifers of differing water quality from each other

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Place cement bridges at the top of the surface casing and at the surface casing shoe

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Verify position/location of hole for future reference

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dispose of drill and other fluids safely

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record entire decommissioning procedure and details of bore cementing

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete bore completion report and submit to State/Territory Water Authority

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out housekeeping requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Plan and prepare for the construction of artesian (flowing) aquifer production bores

  1. Access, interpret and apply artesian (flowing) aquifer production bores construction documentation and ensure the work activity is compliant
  2. Obtain, read, interpret, clarify and confirm work requirements
  3. Identify and address potential risks, hazards and environmental issues and implement control measures
  4. Select and wear personal protective equipment appropriate for work activities
  5. Communicate and coordinate activities with others throughout the work activity
  6. Discuss scope of work with client and give technical advice, cost structure, workmanship warranty, quantity and quality of materials, construction standards and methods to be used and gain general agreement on drilling plan
  7. Provide detailed strata logs, pump and development test results conducted during bore development and water and strata samples to the appropriate authorities as required by the relevant State/Territory legislation/licensing agency
  8. Complete all requirements for bore completion reports, decommissioning or abandonment and send to regulatory authorities within the time specified on bore licence
  9. Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
Access, interpret and apply artesian (flowing) aquifer production bores construction documentation and ensure the work activity is compliant

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Obtain, read, interpret, clarify and confirm work requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and address potential risks, hazards and environmental issues and implement control measures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select and wear personal protective equipment appropriate for work activities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Communicate and coordinate activities with others throughout the work activity

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Discuss scope of work with client and give technical advice, cost structure, workmanship warranty, quantity and quality of materials, construction standards and methods to be used and gain general agreement on drilling plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Provide detailed strata logs, pump and development test results conducted during bore development and water and strata samples to the appropriate authorities as required by the relevant State/Territory legislation/licensing agency

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete all requirements for bore completion reports, decommissioning or abandonment and send to regulatory authorities within the time specified on bore licence

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design production bores for artesian aquifer systems

  1. Determine most appropriate construction methods from the reading and interpretation of all available documented information
  2. Design the bore to ensure the exclusion of unsuitable waters and to prevent the inter-mixing of aquifers with different water quality and/or Standing Water Levels
  3. Determine a drilling fluid program to suit the expected down-hole conditions and anticipated pressures
  4. Select a bore site that will prevent contamination and minimise interference with other bores and that is safe with respect to potential occupational health and safety hazards
  5. Select likely water entry mechanism from the formation to the bore such as open hole, slotted casing screens, gravel packs
  6. Calculate appropriate artificial pack design parameters, and recommended annular thicknesses required
  7. Undertake calculations to determine appropriate screen/slot design parameters (e.g. diameter, length, aperture size)
  8. Plot and interpret sieve analysis results onto graphs
  9. Select appropriate bore/surface casing types, size, strength and wall thicknesses for the anticipated ground/water quality and pressure conditions and any construction requirements
  10. Ensure all necessary materials anticipated for the job are available and on site prior to commencement of construction phase
Determine most appropriate construction methods from the reading and interpretation of all available documented information

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Design the bore to ensure the exclusion of unsuitable waters and to prevent the inter-mixing of aquifers with different water quality and/or Standing Water Levels

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine a drilling fluid program to suit the expected down-hole conditions and anticipated pressures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select a bore site that will prevent contamination and minimise interference with other bores and that is safe with respect to potential occupational health and safety hazards

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select likely water entry mechanism from the formation to the bore such as open hole, slotted casing screens, gravel packs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate appropriate artificial pack design parameters, and recommended annular thicknesses required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake calculations to determine appropriate screen/slot design parameters (e.g. diameter, length, aperture size)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Plot and interpret sieve analysis results onto graphs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select appropriate bore/surface casing types, size, strength and wall thicknesses for the anticipated ground/water quality and pressure conditions and any construction requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ensure all necessary materials anticipated for the job are available and on site prior to commencement of construction phase

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct production bores in artesian aquifer systems

  1. Carry out any pre-start and start up procedures
  2. Identify, select and apply rig operational controls
  3. Select, slot, assemble and insert casing and screens suitable for the formations in which they are deployed
  4. Select, mix and place grout or otherwise seal surface casing from 10 m into competent impermeable strata and back to the surface with a minimum sheath thickness of 20mm above maximum shoe of coupling joint diameter size
  5. Conduct grouting operations to seal intermediate and/or inner production casing strings with a 15mm minimum thickness grout sheath or to seal selected zones so that the water from the production bore is drawn from one primary formation only, (unless otherwise allowed by the permit)
  6. Construct bore in accordance with any applicable regulations, minimum construction requirements and the organisation’s internal procedures
  7. Use and maintain drilling fluids and additives within the manufacturer’s recommendations and that are non toxic and capable of complete removal from the bore upon completion
  8. Maintain, test and record fluid properties such as viscosity, mud weight, filtration and sand content so that the potential capacity, efficiency or quality of the bore is not affected
  9. Maintain plumbness and alignment of the hole within the required limitations and carry out a plumbness test where required
  10. Prepare for and recognise symptoms of a formation kick and take action to control the bore
  11. Collect, store, record, label and transport formation samples in accordance with licensing requirements
  12. Collect, test, store, record, label and transport water samples for chemical analysis in accordance with licensing requirements
  13. Maintain all records accurately and legibly
  14. Arrange for geophysical logging tools to be run in bore if required
  15. Accurately calculate hole, annular fill or pack materials and mud pit volumes in cubic metres or litres
  16. Determine aquifer formation grain size distribution from sieve analysis and interpret appropriate gravel pack and screen slot aperture dimensions for gravel packed wells
  17. Select appropriate gravel pack materials
  18. Place artificial pack material in a manner that will ensure uniform distribution in the annular space without bridging
  19. Comply with relevant workplace occupational health and safety requirements for both the drilling equipment and construction materials
  20. Remove drilling fluids from the bore to allow subsequent development
  21. Maintain tool string inventories
  22. Construct headworks for the bore including isolation valves to retain/control artesian flow and to permit independent testing of both pressure and flow without interference to reticulation system
  23. Identify and protect headworks of the bore
  24. Construct headworks to seal and cap the bore from surface water pollutants, environmental concerns and damage
  25. Dispose of/neutralise wastewater or hazardous materials from site and complete restoration of the bore site camp facilities
Carry out any pre-start and start up procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify, select and apply rig operational controls

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, slot, assemble and insert casing and screens suitable for the formations in which they are deployed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select, mix and place grout or otherwise seal surface casing from 10 m into competent impermeable strata and back to the surface with a minimum sheath thickness of 20mm above maximum shoe of coupling joint diameter size

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct grouting operations to seal intermediate and/or inner production casing strings with a 15mm minimum thickness grout sheath or to seal selected zones so that the water from the production bore is drawn from one primary formation only, (unless otherwise allowed by the permit)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct bore in accordance with any applicable regulations, minimum construction requirements and the organisation’s internal procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use and maintain drilling fluids and additives within the manufacturer’s recommendations and that are non toxic and capable of complete removal from the bore upon completion

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain, test and record fluid properties such as viscosity, mud weight, filtration and sand content so that the potential capacity, efficiency or quality of the bore is not affected

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain plumbness and alignment of the hole within the required limitations and carry out a plumbness test where required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare for and recognise symptoms of a formation kick and take action to control the bore

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect, store, record, label and transport formation samples in accordance with licensing requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Collect, test, store, record, label and transport water samples for chemical analysis in accordance with licensing requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain all records accurately and legibly

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Arrange for geophysical logging tools to be run in bore if required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Accurately calculate hole, annular fill or pack materials and mud pit volumes in cubic metres or litres

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine aquifer formation grain size distribution from sieve analysis and interpret appropriate gravel pack and screen slot aperture dimensions for gravel packed wells

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Select appropriate gravel pack materials

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Place artificial pack material in a manner that will ensure uniform distribution in the annular space without bridging

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Comply with relevant workplace occupational health and safety requirements for both the drilling equipment and construction materials

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove drilling fluids from the bore to allow subsequent development

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Maintain tool string inventories

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct headworks for the bore including isolation valves to retain/control artesian flow and to permit independent testing of both pressure and flow without interference to reticulation system

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and protect headworks of the bore

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Construct headworks to seal and cap the bore from surface water pollutants, environmental concerns and damage

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dispose of/neutralise wastewater or hazardous materials from site and complete restoration of the bore site camp facilities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Develop bore

  1. Use development techniques with care to prevent collapsing of casing or screens
  2. Undertake development until a continuous, clean supply if water is obtained, in accordance with acceptable and practical limits set by site, contractual or regulatory requirements
  3. Measure/ calculate and record standing and drawdown water levels
  4. platform pump and or development tests to estimate the sand content and sustainable yield of the bore
Use development techniques with care to prevent collapsing of casing or screens

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use development techniques with care to prevent collapsing of casing or screens

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake development until a continuous, clean supply if water is obtained, in accordance with acceptable and practical limits set by site, contractual or regulatory requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Measure/ calculate and record standing and drawdown water levels

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

platform pump and or development tests to estimate the sand content and sustainable yield of the bore

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Disinfect/decontaminate bore and drilling equipment

  1. Disinfect/decontaminate to comply with relevant standards or regulatory requirements
  2. Handle hazardous chemicals in accordance with safety data sheets (SDS)
Disinfect/decontaminate to comply with relevant standards or regulatory requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Handle hazardous chemicals in accordance with safety data sheets (SDS)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out bore maintenance and rehabilitation

  1. Carry out and shutdown procedures and secure
  2. Undertake a process of diagnosis to determine likely cause of bore deterioration
  3. Devise a program of rehabilitation to ensure that the bore is restored to a reasonable condition
Carry out and shutdown procedures and secure

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Undertake a process of diagnosis to determine likely cause of bore deterioration

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Devise a program of rehabilitation to ensure that the bore is restored to a reasonable condition

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Decommission artesian wells with flowing and/or non-flowing elements

  1. Determine suitable decommissioning procedures and select appropriate materials
  2. Carry out the decommissioning (abandonment) of artesian aquifer bores, using min 20m long cement plugs sufficient to stem the flow between aquifers both from inside and outside the casing, (slot casing as necessary) or to separate aquifers of differing water quality from each other
  3. Place cement bridges at the top of the surface casing and at the surface casing shoe
  4. Verify position/location of hole for future reference
  5. Dispose of drill and other fluids safely
  6. Record entire decommissioning procedure and details of bore cementing
  7. Complete bore completion report and submit to State/Territory Water Authority
  8. Carry out housekeeping requirements
Determine suitable decommissioning procedures and select appropriate materials

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out the decommissioning (abandonment) of artesian aquifer bores, using min 20m long cement plugs sufficient to stem the flow between aquifers both from inside and outside the casing, (slot casing as necessary) or to separate aquifers of differing water quality from each other

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Place cement bridges at the top of the surface casing and at the surface casing shoe

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Verify position/location of hole for future reference

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Dispose of drill and other fluids safely

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record entire decommissioning procedure and details of bore cementing

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete bore completion report and submit to State/Territory Water Authority

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out housekeeping requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

1. Plan and prepare for the construction of artesian (flowing) aquifer production bores

1.1 Access, interpret and apply artesian (flowing) aquifer production bores construction 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 Discuss scope of work with client and give technical advice, cost structure, workmanship warranty, quantity and quality of materials, construction standards and methods to be used and gain general agreement on drilling plan

1.7 Provide detailed strata logs, pump and development test results conducted during bore development and water and strata samples to the appropriate authorities as required by the relevant State/Territory legislation/licensing agency

1.8 Complete all requirements for bore completion reports, decommissioning or abandonment and send to regulatory authorities within the time specified on bore licence

1.9 Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency

2. Design production bores for artesian aquifer systems

2.1 Determine most appropriate construction methods from the reading and interpretation of all available documented information

2.2 Design the bore to ensure the exclusion of unsuitable waters and to prevent the inter-mixing of aquifers with different water quality and/or Standing Water Levels

2.3 Determine a drilling fluid program to suit the expected down-hole conditions and anticipated pressures

2.4 Select a bore site that will prevent contamination and minimise interference with other bores and that is safe with respect to potential occupational health and safety hazards

2.5 Select likely water entry mechanism from the formation to the bore such as open hole, slotted casing screens, gravel packs

2.6 Calculate appropriate artificial pack design parameters, and recommended annular thicknesses required

2.7 Undertake calculations to determine appropriate screen/slot design parameters (e.g. diameter, length, aperture size)

2.8 Plot and interpret sieve analysis results onto graphs

2.9 Select appropriate bore/surface casing types, size, strength and wall thicknesses for the anticipated ground/water quality and pressure conditions and any construction requirements

2.10 Ensure all necessary materials anticipated for the job are available and on site prior to commencement of construction phase

3. Construct production bores in artesian aquifer systems

3.1 Carry out any pre-start and start up procedures

3.2 Identify, select and apply rig operational controls

3.3 Select, slot, assemble and insert casing and screens suitable for the formations in which they are deployed

3.4 Select, mix and place grout or otherwise seal surface casing from 10 m into competent impermeable strata and back to the surface with a minimum sheath thickness of 20mm above maximum shoe of coupling joint diameter size

3.5 Conduct grouting operations to seal intermediate and/or inner production casing strings with a 15mm minimum thickness grout sheath or to seal selected zones so that the water from the production bore is drawn from one primary formation only, (unless otherwise allowed by the permit)

3.6 Construct bore in accordance with any applicable regulations, minimum construction requirements and the organisation’s internal procedures

3.7 Use and maintain drilling fluids and additives within the manufacturer’s recommendations and that are non toxic and capable of complete removal from the bore upon completion

3.8 Maintain, test and record fluid properties such as viscosity, mud weight, filtration and sand content so that the potential capacity, efficiency or quality of the bore is not affected

3.9 Maintain plumbness and alignment of the hole within the required limitations and carry out a plumbness test where required

3.10 Prepare for and recognise symptoms of a formation kick and take action to control the bore

3.11 Collect, store, record, label and transport formation samples in accordance with licensing requirements

3.12 Collect, test, store, record, label and transport water samples for chemical analysis in accordance with licensing requirements

3.13 Maintain all records accurately and legibly

3.14 Arrange for geophysical logging tools to be run in bore if required

3.15 Accurately calculate hole, annular fill or pack materials and mud pit volumes in cubic metres or litres

3.16 Determine aquifer formation grain size distribution from sieve analysis and interpret appropriate gravel pack and screen slot aperture dimensions for gravel packed wells

3.17 Select appropriate gravel pack materials

3.18 Place artificial pack material in a manner that will ensure uniform distribution in the annular space without bridging

3.19 Comply with relevant workplace occupational health and safety requirements for both the drilling equipment and construction materials

3.20 Remove drilling fluids from the bore to allow subsequent development

3.21 Maintain tool string inventories

3.22 Construct headworks for the bore including isolation valves to retain/control artesian flow and to permit independent testing of both pressure and flow without interference to reticulation system

3.23 Identify and protect headworks of the bore

3.24 Construct headworks to seal and cap the bore from surface water pollutants, environmental concerns and damage

3.25 Dispose of/neutralise wastewater or hazardous materials from site and complete restoration of the bore site camp facilities

4. Develop bore

4.1 Use development techniques with care to prevent collapsing of casing or screens

4.2 Use development techniques with care to prevent collapsing of casing or screens

4.3 Undertake development until a continuous, clean supply if water is obtained, in accordance with acceptable and practical limits set by site, contractual or regulatory requirements

4.4 Measure/ calculate and record standing and drawdown water levels

4.5 platform pump and or development tests to estimate the sand content and sustainable yield of the bore

5. Disinfect/decontaminate bore and drilling equipment

5.1 Disinfect/decontaminate to comply with relevant standards or regulatory requirements

5.2 Handle hazardous chemicals in accordance with safety data sheets (SDS)

6. Carry out bore maintenance and rehabilitation

6.1 Carry out and shutdown procedures and secure

6.2 Undertake a process of diagnosis to determine likely cause of bore deterioration

6.3 Devise a program of rehabilitation to ensure that the bore is restored to a reasonable condition

7. Decommission artesian wells with flowing and/or non-flowing elements

7.1 Determine suitable decommissioning procedures and select appropriate materials

7.2 Carry out the decommissioning (abandonment) of artesian aquifer bores, using min 20m long cement plugs sufficient to stem the flow between aquifers both from inside and outside the casing, (slot casing as necessary) or to separate aquifers of differing water quality from each other

7.3 Place cement bridges at the top of the surface casing and at the surface casing shoe

7.4 Verify position/location of hole for future reference

7.5 Dispose of drill and other fluids safely

7.6 Record entire decommissioning procedure and details of bore cementing

7.7 Complete bore completion report and submit to State/Territory Water Authority

7.8 Carry out housekeeping requirements

Required Skills and Knowledge

1. Plan and prepare for the construction of artesian (flowing) aquifer production bores

1.1 Access, interpret and apply artesian (flowing) aquifer production bores construction 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 Discuss scope of work with client and give technical advice, cost structure, workmanship warranty, quantity and quality of materials, construction standards and methods to be used and gain general agreement on drilling plan

1.7 Provide detailed strata logs, pump and development test results conducted during bore development and water and strata samples to the appropriate authorities as required by the relevant State/Territory legislation/licensing agency

1.8 Complete all requirements for bore completion reports, decommissioning or abandonment and send to regulatory authorities within the time specified on bore licence

1.9 Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency

2. Design production bores for artesian aquifer systems

2.1 Determine most appropriate construction methods from the reading and interpretation of all available documented information

2.2 Design the bore to ensure the exclusion of unsuitable waters and to prevent the inter-mixing of aquifers with different water quality and/or Standing Water Levels

2.3 Determine a drilling fluid program to suit the expected down-hole conditions and anticipated pressures

2.4 Select a bore site that will prevent contamination and minimise interference with other bores and that is safe with respect to potential occupational health and safety hazards

2.5 Select likely water entry mechanism from the formation to the bore such as open hole, slotted casing screens, gravel packs

2.6 Calculate appropriate artificial pack design parameters, and recommended annular thicknesses required

2.7 Undertake calculations to determine appropriate screen/slot design parameters (e.g. diameter, length, aperture size)

2.8 Plot and interpret sieve analysis results onto graphs

2.9 Select appropriate bore/surface casing types, size, strength and wall thicknesses for the anticipated ground/water quality and pressure conditions and any construction requirements

2.10 Ensure all necessary materials anticipated for the job are available and on site prior to commencement of construction phase

3. Construct production bores in artesian aquifer systems

3.1 Carry out any pre-start and start up procedures

3.2 Identify, select and apply rig operational controls

3.3 Select, slot, assemble and insert casing and screens suitable for the formations in which they are deployed

3.4 Select, mix and place grout or otherwise seal surface casing from 10 m into competent impermeable strata and back to the surface with a minimum sheath thickness of 20mm above maximum shoe of coupling joint diameter size

3.5 Conduct grouting operations to seal intermediate and/or inner production casing strings with a 15mm minimum thickness grout sheath or to seal selected zones so that the water from the production bore is drawn from one primary formation only, (unless otherwise allowed by the permit)

3.6 Construct bore in accordance with any applicable regulations, minimum construction requirements and the organisation’s internal procedures

3.7 Use and maintain drilling fluids and additives within the manufacturer’s recommendations and that are non toxic and capable of complete removal from the bore upon completion

3.8 Maintain, test and record fluid properties such as viscosity, mud weight, filtration and sand content so that the potential capacity, efficiency or quality of the bore is not affected

3.9 Maintain plumbness and alignment of the hole within the required limitations and carry out a plumbness test where required

3.10 Prepare for and recognise symptoms of a formation kick and take action to control the bore

3.11 Collect, store, record, label and transport formation samples in accordance with licensing requirements

3.12 Collect, test, store, record, label and transport water samples for chemical analysis in accordance with licensing requirements

3.13 Maintain all records accurately and legibly

3.14 Arrange for geophysical logging tools to be run in bore if required

3.15 Accurately calculate hole, annular fill or pack materials and mud pit volumes in cubic metres or litres

3.16 Determine aquifer formation grain size distribution from sieve analysis and interpret appropriate gravel pack and screen slot aperture dimensions for gravel packed wells

3.17 Select appropriate gravel pack materials

3.18 Place artificial pack material in a manner that will ensure uniform distribution in the annular space without bridging

3.19 Comply with relevant workplace occupational health and safety requirements for both the drilling equipment and construction materials

3.20 Remove drilling fluids from the bore to allow subsequent development

3.21 Maintain tool string inventories

3.22 Construct headworks for the bore including isolation valves to retain/control artesian flow and to permit independent testing of both pressure and flow without interference to reticulation system

3.23 Identify and protect headworks of the bore

3.24 Construct headworks to seal and cap the bore from surface water pollutants, environmental concerns and damage

3.25 Dispose of/neutralise wastewater or hazardous materials from site and complete restoration of the bore site camp facilities

4. Develop bore

4.1 Use development techniques with care to prevent collapsing of casing or screens

4.2 Use development techniques with care to prevent collapsing of casing or screens

4.3 Undertake development until a continuous, clean supply if water is obtained, in accordance with acceptable and practical limits set by site, contractual or regulatory requirements

4.4 Measure/ calculate and record standing and drawdown water levels

4.5 platform pump and or development tests to estimate the sand content and sustainable yield of the bore

5. Disinfect/decontaminate bore and drilling equipment

5.1 Disinfect/decontaminate to comply with relevant standards or regulatory requirements

5.2 Handle hazardous chemicals in accordance with safety data sheets (SDS)

6. Carry out bore maintenance and rehabilitation

6.1 Carry out and shutdown procedures and secure

6.2 Undertake a process of diagnosis to determine likely cause of bore deterioration

6.3 Devise a program of rehabilitation to ensure that the bore is restored to a reasonable condition

7. Decommission artesian wells with flowing and/or non-flowing elements

7.1 Determine suitable decommissioning procedures and select appropriate materials

7.2 Carry out the decommissioning (abandonment) of artesian aquifer bores, using min 20m long cement plugs sufficient to stem the flow between aquifers both from inside and outside the casing, (slot casing as necessary) or to separate aquifers of differing water quality from each other

7.3 Place cement bridges at the top of the surface casing and at the surface casing shoe

7.4 Verify position/location of hole for future reference

7.5 Dispose of drill and other fluids safely

7.6 Record entire decommissioning procedure and details of bore cementing

7.7 Complete bore completion report and submit to State/Territory Water Authority

7.8 Carry out housekeeping requirements

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 legislation, documentation, policies and procedures

works effectively with others to plan, prepare and conduct the construction of artesian (flowing) aquifer production bores including:

communicating clear and timely instructions to those involved

preparing for and conducting briefings, toolbox and site meetings

maintaining clear and legible written records and the reports

demonstrates completion of the construction of artesian (flowing) aquifer production bores that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

designing the bore to ensure the exclusion of unsuitable waters

selecting a bore site that will prevent contamination and minimise interference with other bores and adhere to occupational health and safety requirements

selecting likely water entry mechanism from the formation to the bore such as open hole, slotted casing screens, gravel packs

assembling and inserting casing and screens

completing grouting operations to seal intermediate and/or inner production casing strings with a 15mm minimum thickness grout sheath or to seal selected zones so that the water from the production bore is drawn from one primary formation only, (unless otherwise allowed by the permit)

maintaining plumbness and alignment of the hole within the required limitations

continuing development until a continuous, clean supply of water is obtained, in accordance with site, contractual or regulatory requirements

performing pump and development tests to estimate the sand content and sustainable yield of the bore

The candidate must demonstrate knowledge in constructing artesian (flowing) aquifer production bores through:

accessing, interpreting and applying legislative, organization and site requirement and procedures for:

work, health and safety

environmental issues

operating drill rig

housekeeping

the equipment characteristics, technical capabilities and limitations

the basic geological formations, i.e. basic knowledge of both soil and rock classifications and various formations which permit groundwater movement and factors affecting groundwater quality for aquifer systems, including drillability and stability

potential safety hazards and sources of contamination when siting a bore

the necessity of having a signed agreement/contract with the client

testing for alignment and plumbness of bores

the appropriate casing materials for various applications

the applications for wire-wound screens

screen design parameters to ensure appropriate entrance velocities

interpretation of sieve analysis results

applications for natural pack, stabilising fill and artificial pack completion techniques

objectives of bore development

identifying and applying appropriate headworks design for class 3 bore applications

characteristics of ‘good samples’ required for water well construction

ways in which sampling errors can occur

types of drilling fluids, their selection, use, testing and conditioning

grout placement methods and procedures including pressure grouting

using a range of numerical calculations

appropriate fishing operations for the type(s) of drilling being undertaken

materials safety data sheets (MSDS)

being prepared for fire/accident/emergency