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Bulldog Pressure Services is helping operators strengthen tailings pipeline integrity and reduce the risk of leaks through targeted pressure testing.
Before tailings enter a new pipeline, the system needs to be tested, checked and proven ready for operation.
Any potential leakage of tailings, left over after metals and minerals are extracted from ore, can have significant operational and environmental consequences. That’s why the expertise of Bulldog Pressure Services can be valuable, with the specialist pressure testing business able to check pipelines are safe and leak-tight before they are placed into service.
“Tailings pipelines transport abrasive and potentially environmentally harmful material, often across considerable distances and through varying terrain,” Bulldog operations and safety general manager Teagan Antonie told Australian Mining.
“A pipeline failure can result in environmental damage, safety risks, loss of containment, operational disruption and significant repair and clean-up costs. That’s why it’s critical to verify pipeline integrity before commissioning.”
Bulldog brings specialist pressure-testing equipment and experienced crews to mining projects, carrying out testing from initial preparation through to commissioning.
That combination of equipment and experience allows Bulldog to work alongside project teams during construction, commissioning, shutdowns and maintenance, with testing tailored to the pipeline and the requirements of each site.
Bulldog can support hydrostatic and pneumatic pressure testing, nitrogen purging and leak testing, line blowing, pipeline pigging, dewatering and drying, test pack preparation and commissioning across both above-ground and buried systems, including pipelines with varying diameters, materials, lengths and test pressures.
These capabilities have been central to Bulldog’s development since the business was established by director Eddie Antonie, who found a growing need for specialist pressure-testing contractors able to provide a responsive, practical service to major projects.
Since then, Bulldog has grown its equipment fleet and workforce to support major mining, oil and gas, water and resources projects across the country.
One of its key services for the mining industry is pre-commissioning pressure testing. This helps operations to check for potential weaknesses in the pipeline before material enters the system.
Bulldog can conduct this through hydrostatic testing, which allows the pipeline to be tested in a controlled environment using water, rather than tailings or other process material.
The test can then locate any leaks, defects or weaknesses, so an operation can fix them before the pipeline is commissioned.
“Our role is not simply to apply pressure to a pipeline; it is to manage the complete testing process safely and provide confidence that the system is ready for operation,” Antonie said.
“By verifying its integrity, we can provide assurance that the pipeline can safely withstand its intended operating pressures and that the joints, welds, flanges and other components are leak tight.”
Bulldog’s expertise was recently demonstrated at South Australia’s Carrapateena copper project, where it was engaged to hydrostatically test approximately 13.5km of tailings pipeline.
The testing was carried out before the pipeline entered service, giving the project team an opportunity to identify and address any issues before tailings were introduced.
Bulldog’s team filled and pressurised the pipeline in sections, monitored the tests and recorded the results against the project requirements.
Three tests were conducted on 300mm nominal diameter Class 300 and Class 600 ultra-high molecular weight polyethylene (UHMWPE)-lined piping systems, with test pressures ranging from 5500–11,200 kilopascals.
Once this was done, Bulldog confirmed that the pipeline could withstand the test pressures and met the required criteria for structural integrity and leak tightness before the tailings were introduced into the system.
In addition, Bulldog was able to further support the commissioning of a refrigeration plant, completed line blowing and nitrogen leak testing across the newly installed pipework and provided onsite technical and mechanical assistance.
“Major resources projects like this require a very high level of technical assurance, safety compliance, planning, and documentation,” Antonie said.
“Bulldog helped reduce the risk of an integrity failure by carefully testing the pipeline before commissioning, using controlled test pressures, calibrated instrumentation and continuous, accurate monitoring.
“Being engaged on a project like this reflects the trust placed in Bulldog to provide experienced personnel, reliable equipment and accurate results while operating within strict and complex client and site requirements.”
This feature appeared in the November 2026 edition of Australian Mining.