STOCK DOMESTIC & IRRIGATION

FAR NORTH COAST NEW SOUTH WALES

  • 30 years experience drilling Stock, Domestic & Irrigation bores for households, farms and commercial purposes.
  • Average flow of 2.02 L/sec 

LACHLAN VALLEY 

  • 2 years drilling various test holes and production bores up to 100m deep. Drilled reverse circulation 400mm to 500mm dia., installing casing 200 – 300mm dia and gravel packing.
  •  Bores produced between 10,000 to 100,000 GPH.
  • All production bores were pump tested 10,000 to 80,000 GPH

WARRAWIDGEE STATION 

  • Drilled 2 test holes 180m deep using air core drilling method.
  • Drilled production bore 900mm dia. using R.C., installed 660mm dia. steel casing to 60m.  Then through that we drilled 609mm dia. hole R.C.to 170m and installed 457mm steel casing and screens, gravel packed and cemented a seal in between.
  •  This bore produced an actual pumping rate of 360,000 GPH with a draw down less than 36m SWL was 18m.  (This bore had one of the lowest operating costs in the whole area because it was drilled without mud using the R.C. system.)
  • Pump tested bore at 80,000 GPH.

COWL COWL STATION - LACHLAN VALLEY

  • Drilled test bores for irrigation to 120m using air core.
  • Drilled rotary mud and converted the test holes to stock bores to a depth of 120m in alluvial formation.

JERILDERIE - MURRAY VALLEY

  • Drilled 3 test bores using air core to approx 150m.
  • Drilled produciton bore 600mm dia. using R.C. to approx. 150m installing  400mm dia. steel casing, screen and gravel packed from top to bottom.
  • Bore produced approx. 150,000 GPH.
  • Pump tested bore at 80,000 GPH.

BUNGENDORE - NSW

  • Drilled test bores and a Prod bore for a Turf Farm 400mm dia. to 60m using R.C., installing 200mm casing, screens and gravel pack to the surface.
  • Bore produced approx. 12,000 GPH.
  • Pump tested bore at 10,000 GPH approx.

TOWN WATER SUPPLY

REDLAND SHIRE COUNCIL / QUEENSLAND WATER

         North Stradbroke Island

  • Drill production bore field of 15 bores using Air/Mud Rotary Reverse Circulation through dune sands on North Stradbroke Island.
  • Bores were drilled 550mm dia to 9m, 450mm steel surface casing was installed, and then drilled 400mm dia up to 150m deep. 200mm NB PVC class 12 casing and screens were installed, then gravel packed above the water table and the balance of the annulus was back filled with local dune sand.
  • Bores produced on average 30/ L / sec.
  • All bores pump tested up to 30 L/sec.
  • Drilled one production bore 30m deep for Point Lookout town water supply using the same construction techniques as above.
  • Drilled 10 Piezometer bores on North Stradbroke Island using Rotary mud 150mm dia up to 190m. Installed 50mm NB PVC class 12/18 casing and screens with a gravel pack.
  •  Drilled one production bore 3/m deep for Dunwich Town water supply using the same construction techniques as above.

GOSFORD CITY / WYONG SHIRE COUNCIL                               

Joint Water Supply Project – Ground water supplies up to 45 L/secCouncil employed four of SLADE’s drilling rigs on this project.

  • 20 x 150mm Test holes drilled through alluvium using Rotary Mud (RM) then drilled into Hawkesbury sandstone/Terrigal formation, using Down Hole Hammer (DHH). Drilled 200mm dia up to 45m, cased with 150mm NB surface casing, then drilled 150mm dia up to 150m.
  • 10 x 200mm Test holes drilled through alluvium using RM in to Hawkesbury sandstone/Terrigal formation using DHH.  Drilled 250mm dia up to 45m, cased with 200mm NB surface casing, then drilled 200mm dia up to 150m.
  • 26 x 150mm Production bores drilled through alluvium using RM into Hawkesbury sandstone/Terrigal formation, using DHH.  Drilled 250mm dia up to 45m, cased with 200mm NB surface casing, pressure cemented, then drilled 200mm dia up to 150m. Then cased with 150mm steel casing and SS screens, then gravel packed.
  • 7 x 200mm Production bores drilled through alluvium using RM into Hawkesbury sandstone/Terrigal formation, using DHH.  Drilled 300mm dia up to 45m, cased with 250mm NB surface casing, pressure cemented, then drilled 250mm dia up to 150m.  Then cased with 200mm steel casing and SS screens, then gravel packed.
  • 3 x 250mm Production bores drilled through alluvium using Rotary Mud into Hawkesbury sandstone/Terrigal formation, using DHH.  Drilled 450mm dia up to 30m, cased with 400mm NB surface casing, pressure cemented, then drilled 375mm dia up to 135m. Cased with 250mm Stainless Steel casing and SS screens, gravel packed, cemented from approx 40m to the surface using a tremie tube.
  • 3 x 250mm Production bores using RC, sites were located in high environmentally sensitive areas. In order to complete these bores we utilized our Reverse Circulation System to drill the test holes and production bores in compliance with the current EPA guidelines.  This proved to be highly successful.

Production bores were drilled, 600mm using Rotary Mud through alluvium to 9m, then installed 500mm steel surface casing, drilled 500mm dia up to 24m, using Air/Mud RC cased with 400mm NB steel casing, and pressure cemented, and then drilled 380mm dia up to 164m, using Air/Mud RC. Cased with 250mm SS casing, SS screens, and gravel packed. Then cemented from approx 40m to the surface using a tremie tube. 

MINE WATER SUPPLY

CONSOLIDATED RUTILE LIMITED/ UNIMIN/ SIBELCO

North Stradbroke Island

  • Thousands of metres of air core drilling installing peizo’s through the inner tube of the drill rods.
  • Approx. 10 peizo holes using rotary mud up to 120m deep for CRL.
  • Approx 60 production bores, average 80m deep, drilled 450mm dia. using R.C Mud installing 250mm I.D. steel casing, screens and gravel packing.
  • Bores produced from 25 L/sec to 100 L/sec
  • All production bores were pump tested up to 30 L/sec.

CAPE FLATTERY SILICA MINE - QLD

  •  2 production bores 90/138m deep, drilled 450mm dia. Using R.C Mud, installing 250mm I.D. steel casing, screens and a gravel pack.
  • 1 production bore to 90m deep drilled 550mm dia. Using R.C., installing 350mm O.D. steel casing, screens and a gravel pack.
  • Bores produced up to 200 L/sec.
  • The 138m production bore was pump tested at 30 l/sec.

DE-WATERING

THE STATE ELECTRICITY COMMISSION OF VICTORIA

Morwell Open Cut Coal Mine

  • 2 dewatering bores approx. 120m deep, drilled 1000mm dia. using Reverse Circulation, installing 558.8mm ID x 900mm OD Hardie Iplex Asbestos Cement casing to 60m, then drilling 500mm dia. to 120m and placing 400mm dia. steel casing and screens and sealing between the casings.
  • These bores produced approx. 120,000 GPH.
  • All production bores were pump tested up to 80,000 GPH