Geothermal Drilling

Jobsite Report 83

Geothermal Drilling

Drilling Rig
KLEMM KR 805-3GW

Customer
Preatech

Place
Chénas, France

Drilling Job
An old castle in the wine region of Chénas is being restored and converted into a 5-star hotel. The heating is to be provided by geothermal energy. A total of twelve geothermal boreholes are to be drilled for this purpose.

Drilling Method
Double head drilling rotary/rotary and down-the-hole-hammer (DTH).

  • Drilling diameter 152 mm
  • Drilling depth 214 m
  • Drilling angle 20°

Rods and casings are placed in the drilling axis by means of a handling device attached to a separate excavator.

Gerätespezifikation

  • Drill rig KLEMM KR 805-3GW, 129 kW
  • Double head drilling unit KH 39G / KH 25 and preventer system
  • Clamping and breaking device type H
  • GAMMA water pump
  • High pressure cleaner
  • In-line lubricator for DTH
  • Rod handling device HBR 180-1
  • Crane type FASSI on board
  •  Radio remote control
  •  Handling system HBR 120 D3H, with 3 clamps, as excavator attachment