Evaluation of seals for a geothermal logging tool

Conference · Sun Jan 01 00:00:00 EST 1978

OSTI ID:6849148

Arnold, C Jr; Coquat, J A; Baker, L E

The seal efficiency and environmental resistance of various elastomeric o-rings and a metallic joint that were immersed in geothermal brine or water at elevated temperatures and pressures were determined. A leakproof seal was maintained with a stainless steel Conoseal-joint for 100 hours in water and 24 hours in geothermal brine at 275/sup 0/C and 34.5 MPa (5000 psi). Only very small quantities of moisture penetrated o-ring seals made from Kalrez, a perfluoroelastomer, ethylene/propylene rubber and a Parylene C coated Viton o-ring. All other rubber seals failed catastrophically.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 6849148
• Report Number(s): SAND-78-0423C; CONF-780708-24
• Resource Relation: Conference: Geothermal Resources Council meeting, Hilo, HI, USA, 25 Jul 1978
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
47 OTHER INSTRUMENTATION
ELASTOMERS
MATERIALS TESTING
SEALS
PERFORMANCE TESTING
WELL LOGGING
EQUIPMENT
BRINES
ETHYLENE
FAILURES
GEOTHERMAL FLUIDS
GEOTHERMAL WELLS
HIGH PRESSURE
HIGH TEMPERATURE
JOINTS
LEAKS
MOISTURE
PROPYLENE
RINGS
RUBBERS
SILICONES
STAINLESS STEELS
THERMAL DEGRADATION
WATER
ALKENES
ALLOYS
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
FLUIDS
HYDROCARBONS
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
POLYMERS
SILOXANES
STEELS
TESTING
WELLS
Geothermal Legacy
150303* - Geothermal Exploration & Exploration Technology- Exploratory Drilling & Well Logging
440400 - Well Logging Instrumentation