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l Tools & Technology l

Lamont Test Well specifications
  • Total depth is 1000'

  • Hole diameter is 6.25" from 20' to total depth

  • 20' of 8" diameter surface casing

  • Method of drilling = air rotary, hammer drill

  • Gamma, caliper and temperature logs acquired

  • Open hole below surface casing will remain uncased

  • Gamma, caliper and BHTV logs have been acquired in this hole

  Pressure Vessel for Instrument Testing
  • Total depth is 61'

  • 14' of 14.25" diameter surface casing

  • 10.2" diameter hole from 14' to 61' remains uncased

  • Method of drilling = air rotary, hammer drill

  • Pressure Vessel

      40' long
      6.5" I.D.
      10,000 psi
      Digital pressure record
      G/O 7 conductor through wiring
  Overhead Crane

A large steel overhead frame has been installed over two test holes to accomodate the installation and removal of downhole equipment.

  • Vertical clearance = 17'

  • Max payload = 2000 lbs


Wireline logging tools and certain sampling equipment can be raised and lowered into the holes at the Lamont Test Well facility using our logging truck.

Borehole Research Group at Lamont-Doherty Earth Observatory of Columbia University, 61 RT 9W, Palisades, NY 10964