GAS

GAS. POWER. WATER. TELCO.

Zinfra Group is a leading gas, water, power and telco infrastructure service provider. We offer a comprehensive range of engineering, construction, commissioning, operations and maintenance services to the utility infrastructure industry.

Our Brands

Zinfra Group delivers services through two brands.

Zinfra delivers general contracting, major projects and engineering solutions.

ZNX delivers integrated network services with partners such as United Energy, Multinet Gas, Jemena and ActewAGL.

Combining our competitive business approach with our utility heritage positions us well in the market place in terms of our knowledge, experience and capability.

Zinfra Group is one of the largest independent providers of gas construction services and network maintenance in Australia and has the experience, resources and equipment to provide a seamless and cost-effective service to our clients.

Why Zinfra Group?

Who is Zinfra Group?

• We have passionate in-house gas construction employees in Victoria, South Australia, New South Wales and Queensland.

• We own a fleet of construction equipment including excavators, horizontal directional drills, cranes, non-destructive equipment, dump trucks, back hoes and skid steers.

• Our highly skilled mechanical fitters and systems operations technicians are able to undertake operational, maintenance and construction works on gas transmission and distribution assets, pressure reduction skids and stations of all sizes and applications.

• The majority of our gas field workers have completed a Certificate III in Gas Industry Operations.

• Our field workers are supported by our in-house designers, plumbers, traffic management, welders, HSE officers, contract administrators, warehouse and depot facilities, project managers, supervisors, and electrical, mechanical and civil engineers and civil specialists.

• Self-performance of core functions means we deliver certainty, quality and cost-effective outcomes.

• Fully accredited and approved to work on gas distribution and transmission assets throughout Australia.

• A strong safety culture and compliance discipline.

• National footprint, proven delivery in urban, rural and remote locations.

• Strong technical and commercial compliance to contractual scope.

• Established network of industry-accredited suppliers, delivery partners and sub-contractors.

Zinfras Group’s ExperienceZinfra Group’s clients include major gas asset owners/operators including:

• APA Group

• AusNet Services

• Jemena

• Multinet Gas

• ActewAGL

• Tasgas

• Tasmanian Gas Pipeline (TGP).

We have emerged from the owner of major gas distribution systems, totalling in excess of 30,000 kilometres of gas mains and around 1.9 million customer connections. This heritage means we have proven systems, work structures and resources ready to be applied to your business.

Safety Our safety management, training, equipment and testing procedures are at the forefront of everything we do.

We always work to identify, manage and control risks and hazards. No business or technical objective takes priority over the health and safety of our people.

Our AccreditationsZinfra Group is triple certified to AS/NZS ISO standards and fully accredited and approved to work on many major electricity, gas, water and broadband networks throughout Australia.

Project Details:

A major upgrade was required to increase the capacity of an operational gas trunk receiving station (TRS) owned by ActewAGL, in Fyshwick, ACT.

Zinfra project managed all aspects of the design, construction and commissioning, including: civil, mechanical and instrumentation.

Construction included both below-ground and above-ground works:

• Foundations

• Trunk receiving station runs

• Gas heater

• Connecting three-phase electricity

• Upgrading the security fence; and

• New pipework

A new building was constructed to house the control room, plant room, generator room and amenities.

A complete shutdown of the existing facility was required to enable key tie-in points to be constructed. Zinfra and contractors delivered the required works within a tight timeframe through careful planning, management and execution.

Fyshwick Trunk Receiving Station (TRS) Upgrade

Client: ActewAGL

Our Experience.

Project Details:

Zinfra was contracted to complete the construction of the gas supply augmentation works for the Nova Power Traralgon Gas Power Station in Victoria. A new dedicated gas supply line was constructed from the Longford to Dandenong Transmission Pipeline located 2.5km north of the Traralgon site.

Scope of works included construction on both the transmission and distribution assets including:

• Construction safety management plan

• A Class 600 gas transmission pipeline

• A Class 600 pressure reduction station with heater

• A Supply main 525m 150NB steel and 675m 180mm PE pipe.

Zinfra project managed and delivered works including fabrication, assembly and coating of various assets, open trench pipeline laying, horizontal directional drilling, steel and butt fusion welding, hydrotesting, civil and concrete works, working around existing assets, and testing and commissioning support.

Project Details:

Zinfra constructed 800m of steel gas main DN100, Class 600 and API 5L x 42 pipe in Yarwun, Queensland. The new pipe had to be installed under an existing railway line which meant installation, hydro testing and commissioning had to be done in a very small time frame to minimise disruption to the rail schedule.

The works included:

• Welding

• Adherence to Zinfra, APA Group and Aurizon (rail) safety management systems

• Worker mobilisation

• Horizontal directional drilling and open trench works

• Hydro Testing

• Backfill, restoration and demobilisation

Traralgon Gas Supply Augmentation

Client: APA Group and Nova Power

Yarwun Gas Main Construction

Client: APA Group

Zinfra Group provides engineering, construction, operation and maintenance activities on gas transmission, and high and low pressure distribution systems.

Our project management capability means we can handle all aspects of works, including project approvals and permits, project plans, audits, HSE requirements, sub-contractor and stakeholder management, traffic management and civil components.

Our key capabilities include:

• System and network operations

• Construction of gas pipelines, mains, services and renewals

• Fabrication, assembly and installation of pressure reduction skids and city gates

• Maintenance of gas networks

• Construction of gas compressor stations

• Mechanical equipment inspection and maintenance services

• Mains extension and service laying

• Hot taps, stopple and tie-ins

• Pipeline pigging

• Pipeline patrol

• Pipeline protective coatings

• Cathodic protection

• Asset condition testing

• Fault and emergency response.

• Hydrotesting

Multiple Asset Relocations: As a fully accredited and experienced service provider for water, power, gas and telco utilities, Zinfra has the unique ability to undertake multiple asset relocations.

Clients receive efficiencies and cost benefits through contracting and dealing with just one company to install multiple assets simultaneously.

Developers can rely on one company to manage their water, power, gas and telco installations.

Our Gas Capability.

Our in-house design team have extensive experience, so can assist our clients along the length of the gas supply chain with:

• Early support, concept and front end engineering design (FEED) services

• Feasibility studies

• Audit and design review

• Design and capture of ‘as built’ data for gas networks

• Design, construction and installation of city gates, field and district regulators

• Electrical and instrumentation design

• Civil and structural design

• Development arrangements, design approvals

• Drafting.

Repairs and ModificationsZinfra Group can not only identify faults and corrosion, but deliver the remediation and upgrade works required. We offer different levels of defect assessment, ranging from simple visual with measurements to sophisticated 3D elastic-plastic finite element stress analyses.

Engineering.

SCADAZinfra Group’s SCADA Division provides new levels of SCADA systems engineering to clients in the gas, power and water industries. This division specializes in SCADA and telemetry design and installation, providing professional, reliable ‘end-to-end’ implementation of clients’ control and protection systems. We have a wide range of experience from integrating legacy systems, to the efficient implementation of state of- the-art control solutions.

We are able to provide Fitness For Service (FFS) assessments to demonstrate structural integrity of in-service equipment and then assist clients by selecting and recommending the most appropriate repair method after detailed option studies.

Our gas specialists’ skills include civil, mechanical, materials, cathodic protection and welding to international standards, and they are qualified to perform relevant repair works, including, but not limited to:

• In-service welding and modelling

• Pipeline modifications and new off-takes branch design

• Detailed finite element analysis

• Pipe stress analysis

• Work safety procedures and ITPs.

Our SCADA expertise includes:

• Turnkey SCADA project implementation

• Systems engineering and integration of control systems

• Custom made RTU hardware and optimized solution based design

• Telemetry systems

• Industrial ethernet networking

• Project management

• Technical support

• Communication cabinet design

• Factory acceptance testing

• Site acceptance testing and commissioning

Our wealth of practical industry experience and our long track record of delivering turnkey SCADA projects for a number of Australia’s major utilities, allows us to offer clients a reliable, efficient solution which will help to maximise their asset’s productivity.

We have extensive capability and experience in major, multi-disciplined projects for major gas transmission augmentation projects, including complex transmission facilities.

General Capabilities

• Construction of gas transmission pipelines

• Maintenance of gas transmission pipelines

• Design, construction and installation of trunk and package receiving stations

• Leakage and survey detection and pinpointing

• Hot tapping

• Transmission off-takes

• Compressor stations

• Pigging

• Non-destructive testing eg. hydrotesting

• Commissioning.

• Development arrangements, design approvals

• Drafting

Transmission.Zinfra Group has built and operated key natural gas transmission facilities throughout Australia to transport gas from producers and other pipelines to utilities, power generators and major industries.

Some key transmission projects demonstrating Zinfra Group’s major multi-disciplined projects and project management expertise and capability include:

• Fyshwick TRS (City Gate – Pressure Reducing Station) - (AGL) – completed in 2013

• Colongra Gas Lateral Pipeline Project – completed in 2009

• Rolleston Compressor Station – 4600kW , QGP Expansion Project

Pressure Reduction Skids and Stations

Zinfra Group has been involved in the delivery of over 20 city gates, pressure reduction stations (PRS) and trunk receiving stations (TRS), including transmission pipeline components.

Zinfra Group can deliver all stages of the process including:

• Front end engineering design

• Transmission and distribution valve and control system maintenance

• Civil and concrete work

• Construction

• Joint coating and painting

• Electrical works, including SCADA and control systems

• Installation of associated heating solutions eg. water bath heater, shell and tube exchanger and boiler, electric heater.

City Gate Stations.Complete Management and Delivery:

• EPCM and alliance/ JV partnering

• Estimating, planning and scheduling

• Permits and approvals

• Stakeholder management, including land liaison, customer, community, environmental, cultural and heritage

• Turnkey engineering, procurement and construction delivery

• Civil services.

Construction

• Gas mains laying – open trench, horizontal directional drilling, boring

• Major and minor crossings – bridge, creek, river, rail and road

• Field regulators

• Mains renewals – insertion and replacement

• Industrial and commercial regulator stations

• Network augmentation and reinforcement

• Non-destructive excavation

• Reinstatement and rehabilitation works.

Distribution.Our clients benefit from Zinfra Group’s broad range of skills in the gas sector. We provide construction, operations and maintenance services to many of Australia’s biggest asset owners.

Operations and Maintenance (O&M) Services

Highly successful operations and maintenance programs rely on strong technical support. Zinfra Group has technical experts in welding, field coating and application, cathodic protection and monitoring who can be called upon to solve difficult operations and maintenance issues, including:

• Transmission and distribution valve and control system maintenance

• Aerial surveys

• Preventative, corrective and predictive maintenance

• Condition monitoring

• Computerised maintenance management system (CMMS) reporting

• Cathodic protection inspections

• Coating inspections and surveys

• Management and procurement of critical and minor

• Inventory management

• Landholder liaison

• Easement management and communication

• Asset location services

• Non-destructive testing eg. hydro-testing

• Pipeline repairs.

Our capabilities and experience includes the following activities

Mains

• Clearing blocked drains

• Investigation and proving

• Maintenance of above ground assets, marker posts and syphons

• Leak detection surveys

• Mains and service laying in new estates

• Mains renewals and reinforcement.

Services

• Alter/lower services

• Clear service stoppage

• Decommissioning/Disconnection

• Services investigation and proving’s

• Repair damaged services

• Gas leak repairs

• Installation of new services

• Renewal of existing services

Systems Operations (gas facility and regulator station construction and maintenance)

Zinfra Group works on transmission and distribution gas supply assets, including field regulators, city gate stations, and industrial and commercial meter regulator assemblies.

Our capability includes fabrication installation and maintenance of gas metering, filter, heating and regulating equipment for city gate stations, field regulators and large industrial and commercial customer gas supply trains, as well as the fabrication of all gas-piping configurations.

Our gas technicians help clients operationally by monitoring and altering system pressures, to ensure supply to all customers, and then provide our clients with reporting and feedback on their gas system performance.

Zinfra Group undertakes routine scheduled maintenance of gas supply assets and operational checks of various gas assets in accordance with a client’s asset management strategy and maintenance schedules. Maintenance programs generally include full strip-down, inspection evaluation and selective replacement of soft components within gas control facilities.

Our ZNX brand delivers services to the Multinet Gas network, the largest distributor of natural gas in Victoria. They distribute approximately one-third of Victoria’s annual gas load to about 630,000 commercial, industrial and domestic customers.

The Multinet Gas asset base includes:

• 181 district regulators

• 133 field regulators

• 9300km mains, which includes:

- 190 km transmission pressure pipe

- 4750 km high pressure pipe

- 1120 km medium pressure pipe

- 3250 km low pressure pipe.

In addition to these services, Zinfra Group can service, operate and maintain transmission and distribution critical valves in accordance with industry codes, Australian Standards and client technical standards to ensure operational reliability.

Protective Coatings and Repairs.Zinfra Group is a specialist provider of pipeline protective coatings and corrosion protection for new and existing oil, gas and petroleum pipelines. This includes the selection and application of the external coating for buried and above ground pipelines, joints and fittings.

We have been providing clients with on-site services for many years. We specialise in coatings for pipe, field joint coating, induction bends, valves and fittings.

Our capabilities in protective coating include:

• Preliminary site works – site set up and excavation

• Inspection, assessment and testing

• Coating removal

• Abrasive blasting

• High pressure water cleaning

• Specialised coatings and linings

• Protective coating application and recoating using:

- Brush and roller

- Spray pot

- Complex airless application systems

- Wrappings

Repairs

• Full encirclement sleeve

• Clockspring.

For further information www.zinfragroup.com.au

National Craig Fuller M: 0402 060 303 E: craig.fuller@zinfra.com.au

Engineering/ Design Andrew O’Neill M: 0402 060 646 E: andrew.oneill@zinfra.com.au

Welding & Transmission Paul Grace M: 0427 002 601 E: paul.grace@zinfra.com.au

TAS Greg Donald M: 0438 329 676 E: gregory.donald@zinfra.com.au

VIC/SA Paul Anderson M: 0407 564 286 E: paul.anderson@zinfra.com.au

NSW/ACT Abbas Moussawi M: 0407 340 586 E: abbas.moussawi@zinfra.com.au

QLD/NT/WA Craig Scarlett M: 0412 067 561 E: craig.scarlett@zinfra.com.au