Accession Number:

ADP004812

Title:

Deep Core Drilling: Electro-Mechanical or Thermal Drill?

Descriptive Note:

Conference paper

Corporate Author:

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE GRENOBLE (FRANCE) LAB DE GLACIOLOGIE

Report Date:

1984-12-01

Pagination or Media Count:

5.0

Abstract:

In 197778 at Dome C, Antarctica, it was not possible to drill deeper than 905 m because of hole closure. The thermal drill was subsequently been modified to drill deeper in a fluid filled hole. Simultaneously, we have developed an electro-mechanical drill which employs a centrifuge device for separating chips and drilling fluid. Both sets of equipment are described, as well as the main results obtained in the first tests made in Adelie Land in 198182.

Subject Categories:

  • Machinery and Tools

Distribution Statement:

APPROVED FOR PUBLIC RELEASE