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Gas
Transmition and Distribution
Tenix Alliance has some of the leading practitioners in the Australian gas industry. With a wealth of knowledge, our experienced team blends a balance of tried and proven delivery with a culture of innovation and improvement. And, with Australia's largest independent gas operations and maintenance contract and a mobile workforce, we have the capability to deploy teams to deliver a wide range of programmes.
Tenix Alliance's capability spans full asset life cycles from the feasibility studies and estimation, through detailed engineering and drafting to full construction, commissioning and ongoing maintenance. This breadth of delivery and back-of-house engineering enables us to deliver innovation and improvement throughout the process, improving financial, quality and scheduling outcomes for our clients.
Tenix Alliance has made its name in taking on the difficult jobs. Site works can typically involve complex traffic management and worksite protection, trenching, under road/rail crossings, confined space entry, the use of medical air apparatus and working in close proximity to other assets and public spaces. With a focus on safety and quality, our people are passionate about their work and go the extra mile to deliver for our clients.
Tenix Alliance provides:
- 24/7 emergency response and maintenance for gas networks
- Distribution and transmission pipeline network upgrades and installation
- Gas mains renewals, reinforcements and insertions
- Pipe laying, service connections and meter installations for new housing developments and industrial / commercial users
- Cathodic protection surveys and condition assessments
- Gas pipeline coating defect dig-up and repair programmes
- Gas leakage survey programmes
What We Do:
- Gas Network Construction and Commissioning
- Gas Network rollouts and upgrades for distribution and transmission
- Gas Transmission Laterals
- Gas Mains renewals, reinforcements and insertions
- Pipe laying, service connections and meter installations for domestic, commercial and industrial users
- Fabrication, installation and commissioning of regulation and metering stations to 7,000kpa
- Installation of SCADA network control
- Gas Network Operation and Maintenance
- 24/7 fault response and dispatch
- Scheduled maintenance and fault response for regulation and pressure reduction stations
- Dig-up and Repair programs (coating fault repairs, bypasses and cut-outs)
- System operation including pressure alterations, testing programmes and surveys
- Cathodic protection
- Surveys (DCVG, Pearson, interference testing) to determine asset integrity and identify faults or protection potential
- Design and construction of cathodic protection systems
- Protection level monitoring
- Stray current mitigation
- Diagnosis and survey programmes
- Asset integrity services
- Daily patrol of gas pipeline routes (foot, vehicle and aerial patrol)
- Inspection and supervision of third party construction near pipeline assets
- Easement maintenance
- Leakage survey and detection (hand held and vehicle mounted)
- Meter change programs
- Time expired meter programs
- Tracking and reporting meter locations and status
- Fabrication, commissioning and maintenance of industrial and commercial gas metering stations
- Specialist fabrication
- Piping, pressure vessels, coalesces, metering, regulators and city gate installations (all available in-house)
- In-house fabrication facilities for TP pressure construction
- Mobile sandblasting, welding installation and commissioning
- Specialist asset management services
- Project cost estimation and scoping
- Feasibility studies
- Research projects and trials
- Managing enquiries from other authorities (councils, utilities and road authorities)
- Managing ‘Dial Before You Dig' function
How do we do it
Using in-house skills, systems and resources in:
- Engineering and Design - including electrical, mechanical and civil
- Project Management
- Program Management
- Construction
- Commissioning
- Maintenance - planning and execution
- Logistics/Procu
rement - including scheduling and dispatch - Quality Management - ISO 9001
- Health and Safety Management - AS/NZ 4801
- Environmental Management - ISO 14001
- Training - We are one of only two Registered Training Organisations in Australia - certified to train to Gas National Competency Certificate Levels 2 & 3
- Asset Management including
- Condition assessment
- Performance monitoring
- Database management
- Network planning
- Asset optimisation
Our customers
- Gas distribution utilities, including SP AusNet, APA Allgas and Jemena
- Gas Transmission pipeline owners and operators, including ANZIS, Todd Energy and Shell Australia
- Petrochemical companies
Current and recent projects
Cornerstone Gas Field Services Provider, (2004-2011)
For SP AusNet Gas Network (Victoria)
Our role: Sole provider of 24/7 operations, maintenance and capital construction for 192km of transmission pipeline, 7,400km of distribution mains and 504,000 customer supply points. Annual connection of 12,000 new consumers, replacement of 15,000 meters and processing 40,000 dial-before-you dig enquiries.
Outcome: Our performance against agreed KPI's reached 120% in 2008 (up from 117% in 2007). We also reduced unit rate costs and ability to respond to unplanned network emergencies.
New Mains & Services Connections Gold Coast (2007 - 2010)
For APA Allgas (Queensland)
Our role: Installation and commissioning of all new connections to residential, commercial and industrial customers and construction and commissioning of new PE mains.
Outcome: Successful rollout of new mains and services within an agreed time and KPI framework
Dalby Transmission Pipeline & City Gate
For ANZ Infrastructure Services
Our Role: Design and construction of city gate, customer offtake facility and transmission pipeline for Dalby Bio Refinery. Tenix undertook the full design of the pipeline to the AS 2885 standards including the risk assessment, HAZOP and full design and documentation.
Outcome: With at rating of 1950Kpa the pipeline was successfully hydrostatically tested to 2600Kpa, making it the first PE transmission pipeline in Australia to the new AS2885 standard.
Wonthaggi & Inverloch Township Reticulation
For Jemena (Alinta Asset Management)
Our Role: Construction of new 180mm and 125mm feeder mains to introduce gas into the towns of Inverloch & Wonthaggi. Involved installation of 14km of PE pipe by directional drilling.
Outcome: Pipeline installed via trenchless technology providing and economical and environmentally friendly outcome.
Pohokura twin gas and condensate pipelines
For Todd Energy (NZ)
Our role: Installation of a 7.5 km steel twin 400NB gas and 100NB condensate underground pipeline. The pipeline crossed State Highway 3, going under seven gas/hydrocarbon trunk lines and across two streams.
Outcome: The Robt Stone contract for the Pokohura pipeline project in New Plymouth started in October 2005 and was completed in September 2006. Together with the installation works, Robt Stone provided related services including close liaison with the local community, Above ground gas and condensate processing connections at both ends, and Provision of significant traffic management as the pipeline followed the contours of the local road system.
WAG Pipeline Dig up & Repair Programme (2008-2009), Victoria
For Shell Australia
Our role: Completion of dig up and repair programme for the WAG hydrocarbon pipeline. Scope of works involved locating pipeline, confined space excavation, stripping & blasting of pipe, condition and metal loss assessment, repair and re-coating.
Outcome: Completion of programmes of coating fault dig up and repairs in rural and urban environments with nil pipeline or safety incidents.