All posts by Quadramedia

Dunstans join the Australian Pipeline Industry Association

30 July 2015

With further Dunstans development into the pipeline industry and works Australia-wide, we’ve found the APIA to be a great fit to support our operations.

APIA is the peak industry body for the transmission pipeline industry in Australia. The association represents companies and individuals operating over a wide range of sectors.

Ray Dunstan’s 85th birthday

3 September 2014

On Friday the 29th August, Ray Dunstan celebrated his 85th birthday at the Wangaratta office.

Ray Dunstan 85th birthday

Ray still actively works each day locally completing tasks like truck driving and machinery operating.

He wishes for all employees, friends and family to be as healthy as he is when they reach 85.

Three generations of Dunstans now work in the family owned construction group.

Mitcham stormwater outfall

12 May 2015

Dunstans was engaged by John Holland Group on behalf of the Mitcham and Rooks Road Alliance (MRRA) to install an ongrade stormwater outfall pipeline by HDD.

This project highlights Dunstans capabilities to perform complex projects. Dunstans completed the design of the HDD crossing in-house, to comply with MRRA requirements for the location of the proposed stormwater pits and the required grades to ensure the outfall pipeline will operate effectively.

Due to the location, between the upgraded railway line and existing buildings, there was no access to install the pipeline by trenching. Thrust boring could not be utilised due to a curve required in the horizontal plan so the pipeline would follow the railway cutting retaining wall.

Dunstans successfully completed the fabrication and installation of the ongrade pipeline, to the satisfaction of MRRA and John Holland Group utilising our Vermeer D100 Directional Drill and support equipment.

Ploughing Dual Flexpipe

12 May 2014

Dunstans has successfully ploughed in Dual 4.5″ Flexpipe line pipe in the Copper Basin for Senex Energy.

The first installation (as part of a 2 year contract Dunstans has been awarded with Senex Energy) was to install Dual 4.5″ Flexpipe line pipe for a distance of 7km – combining ploughing and trenching techniques.

Dunstans has developed the Dual Plough; which has set a new standard in pipe ploughing adopting a driven roller technology derived from 25 years of ploughing Fiber Optic Cable (FOC). This method ensures the integrity of the pipe is always maintained.

The method has been very successful with installation rates of up to 1 kilometer per hour. Dunstans plough also simultaneously installs the marker tape and FOC.

Senex contract award

12 May 2014

Dunstans are pleased to announce Senex has awarded Dunstans a contract for the installation of composite pipelines in the Cooper Basin region.

Commencement of the contract is May 2014, for a duration of a 2 year contract period.

The project involves the installation of composite pipelines utilising ploughing and trenching techniques, which is a new method in the Australian oil and gas industry.

Dunstans are a leader in ploughing technology. This contract highlights Dunstans continued development and involvement within the oil and gas sector throughout Australia.

Achilles Certification

21 February 2015

Dunstans Construction Group are pleased to announce that it has gained Achilles Certification which will will assist our oil and gas clients in Australia for rapid deployment of our field services for pipe and cable installations.

Dunstans and Transfield Services align to deliver QGC’s WIF pipeline

19 January 2015

Dunstans Construction Group in alliance with Transfield Services are delivering the WIF interconnect pipeline for QGC near Wandoan, Queensland.

Dunstans are supplying equipment and personal to expedite the 1,400 meters of 24 inch carbon steel pipeline construction and tie-ins.

Dunstans D954 sidebooms and 50 ton excavators have been instrumental in the efficient delivery of the project.

All HDD crossings were successfully completed on time and with time lost due to injury.

QGC trunklines early works begin


21 March 2013

Dunstans Construction Group on behalf of Murphy Pipe & Civil is pleased to announce that it has mobilised a construction and management team of 42 personnel to begin early works on the QCLNG trunklines project near Dalby, Queensland.

Dunstans has manufactured in-house machinery with proprietary technology that will lay dual 33KV HV cables and a single Fibre Optic Cable simultaneously with Thermal Sand Bedding.

Isaac River HDD contract award

21 March 2013

Dunstans Construction Group on behalf of AJ Lucas has been awarded the Isaac River HDD crossing as part of the Arrow Node 3 pipeline project. Dunstans will begin construction in late April.

The scope of work is to install 550 meters of 12″ API carbon steel pipeline.

The Arrow Energy project is operated as joint venture between Shell and Petro China. This project highlights the continual development of Dunstans services into the oil and gas sectors.
All HDD crossings were successfully completed on time and with no lost time to injuries.