| Title | Evaluation of Seals for a Geothermal Logging Tool |
|---|---|
| Authors | Arnold, Charles, Jr.; Coquat, Joseph A.; Baker, Leonard E. |
| Year | 1978 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Drilling; Logging Tools; Seals |
| Abstract | The seal efficient and environmental resistance of various elastomeric o-rings and a metallic joint that were immersed in geothermal brine of 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°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. |