Overview-hard rock penetration

Conference · Fri Jan 01 00:00:00 EST 1993

OSTI ID:7369648

Dunn, J C ^[1]

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1. Sandia National Laboratories, Albuquerque, NM (United States)

The Hard Rock Penetration program is developing technology to reduce the costs of drilling and completing geothermal wells. Current projects include: lost circulation control, borehole instrumentation, acoustic telemetry, slimhole drilling, geothermal heat pumps. A new project to improve synthetic diamond drill bits for hard rock drilling was initiated during the year. Accomplishments during the year include completion of important acoustic telemetry tests in the Long Valley Well. These tests produced the first set of reliable, repeatable data in a drill hole. The results indicate the promise of acoustic transmission through drill pipe for great distances without repeaters. The rolling float meter for measuring drilling fluid outflow was duplicated and sent to six different companies for evaluation in the field. A new slimhole spectral gamma tool for operation at temperatures up to 300 C was fabricated and evaluated in the laboratory. Slimhole drilling for exploration and reservoir characterization was begun with several projects jointly completed with industry.

• OSTI ID: 7369648
• Report Number(s): CONF-930484-; ON: DE94001714
• Resource Relation: Conference: 11. Geothermal program review: geothermal energy - the environmentally responsible energy technology for the nineties, Berkeley, CA (United States), 27-29 Apr 1993; Related Information: In: Proceedings: Geothermal Energy: The Environmentally Responsible Energy Technology for the Nineties'', by
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
GEOTHERMAL WELLS
LOST CIRCULATION
TELEMETRY
WELL DRILLING
RESEARCH PROGRAMS
DRILL BITS
EXPLORATION
GEOTHERMAL INDUSTRY
HEAT PUMPS
ROCK DRILLING
COMMUNICATIONS
DATA TRANSMISSION
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
INDUSTRY
WELLS
Geothermal Legacy
150901* - Geothermal Engineering- Drilling Technology & Well Hardware
150303 - Geothermal Exploration & Exploration Technology- Exploratory Drilling & Well Logging