DDH1 breaks drilling depth mark 

DDH1 has created history after drilling the deepest mineral core hole in Australia.

The record was achieved at Northern Star Resources’ Jundee gold mining operations near Wiluna in Western Australia, beating the previous core drill record by 200m, which was recorded at Kalgoorlie’s Super Pit in 2015 and reportedly stopped at 3011.5m. 

The drill was originally planned to stop at 3100m, but some intriguing indications made Northern Star push on. By its February 28 conclusion, the drill hole, which employed Sandvik NHD heavy duty rods rated to 3000m and a 2500m-rated Sandvik DE880 rig, had reached an impressive depth of 3217m. 

This was beyond the NHD drill rods and DE880 rigs rated capacity, but not beyond their safe technical limits, according to DDH1 CEO Murray Pollock.

“Sandvik’s 3000m rating for the NHD is conservative,” Mr Pollock said. 

“It’s a tough, very reliable drill rod which is obviously capable of more.”

Mr Pollock said if it wasn’t for Northern Star calling a halt, DDH1 could have continued drilling past the record depth, which had a true vertical depth of 2625.1m. 

A pioneer of deep directional drilling, Mr Pollock said pushing the drill boundaries was becoming a growing trend since most of the more accessible deposits had already been discovered, prompting exploration companies to use sophisticated geophysical methods to highlight deep structures.

Among other projects, DDH1 is currently drilling a 2950m deep hole at St Barbara’s Gwalia gold mine, north of Kalgoorlie. The company is also engaged in a significant number of other exploration drilling operations across WA, Northern Territory and the east coast.

Mr Pollock said for quality, reliability, safety, efficiency and productivity, Sandvik was the company’s top choice. 

“Sandvik’s the industry standard,” he said. “It’s the brand many of our client companies specifically ask for, with good reason. 

“It’s a great feeling to know you can have complete confidence in your rigs, drill rods and other drilling equipment.”

With the frontiers of exploration drilling continually expanding, DDH1 predicted there would soon be new records set through the company’s highly successful partnership with Sandvik.

Picture: DDH1 Managing Director Murray Pollock and Operations Director Matt Thurston.

latest news

Duketon gold belt to produce gold next decade

Outgoing Regis Resources Executive Chairman Mark Clark said the Duketon gold belt in the northern Goldfields had another decade of production ahead as he stepped aside from the helm of the company after almost 10 years.

Read more

Rio Tinto to share Australian coal sale

Rio Tinto has revealed a share buyback as the mechanism by which it will return US$3.2 ($.4.4) billion to shareholders from the recent sale of Australian coal assets.

Read more

3.23kg gold found in Goldfield

A massive gold nugget worth at least $110,000 has been uncovered by a prospector in remote WA.

Read more

State, Federal governments urged to act on lithium

A major report on the future of Australia’s mining sector has backed industry calls for State and Federal governments to help invest in downstream processing of battery minerals and provide the next generation of high-tech jobs in WA and across the nation.

Read more

Cultural query on Beta Hunt gold stones tour

The Canadian company that unearthed massive gold specimens at the Beta Hunt mine near Kambalda will have to navigate strict Federal regulations in its bid to exhibit them around the world ahead of a planned auction.

Read more

Liontown to fast-track Buldania resource

Liontown Resources will be looking to fast-track a maiden resource estimate at Buldania after making a second discovery at its project 30km north-east of Norseman.

Read more

 

industry insight

Swinging for heavyweight status

Iron ore. The red dirt stalwart long seen as a staple of the Western Australian mining scene.

Gold.

...
Products and Technology

Steel builds, no bolts or welds

“It’s Lego for buildings” is the way Yenem Engineering Services Director Dave Meney summarised the company’s newly developed altCONNECT technology.

From its West

...
People and Projects

Kalgoorlie set to play major role in global lithium production

Riding the wave of State Government investment in battery-metal production, lithium miner Neometals recently revealed its plans to

...
Occupational Health and Safety

Data-driven approach finds optimal training pathway

A breakthrough in the medium fidelity space, Immersive Technologies’ new simulation platform is already proving to be an industry game changer.

Ideal for

...

interview

The future workforce of mining

The very concept of work is being redefined due to changing workforce demographics and rapid advancements in technology, and the Australian mining industry is no exception.

Read more