High-temperature seals and lubricants for geothermal rock bits. Final report

Technical Report · Wed Apr 01 00:00:00 EST 1981

DOI:https://doi.org/10.2172/6781193· OSTI ID:6781193

Hendrickson, R R; Winzenried, R W; Jones, A H

High temperature seals (elastomeric and mechanical) and lubricants were developed specifically for journal-type rock bits to be used in geothermal well drilling. Results at simulated downhole conditions indicate that five selected elastomeric seals (L'Garde No. 267, Utex Nos. 227, 231 and HTCR, and Sandia Glow Discharge Coated Viton) are capable of 288/sup 0/C (500/sup 0/F) service. Two prototype mechanical seals did not achieve the life determined for the elastomeric seals. Six lubricants (Pacer PLX-024 oil, PLX-043 oil, PLX-045 oil, Geobond Oil, and Geobond Grease) demonstrated 316/sup 0/C (600/sup 0/F) capability. Recommendation is made for full-scale simulated geothermal drilling tests utilizing the improved elastomeric seals and lubricants.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6781193
• Report Number(s): SAND-81-7076
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
DRILL BITS
PERFORMANCE TESTING
LUBRICANTS
SEALS
DESIGN
ELASTOMERS
GEOTHERMAL WELLS
HIGH TEMPERATURE
HYDROTHERMAL SYSTEMS
ORGANIC FLUORINE COMPOUNDS
ROCK DRILLING
WELL DRILLING
DRILLING
DRILLING EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
GEOTHERMAL SYSTEMS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
POLYMERS
TESTING
WELLS
Geothermal Legacy
150901* - Geothermal Engineering- Drilling Technology & Well Hardware