Battery Pack/Controller for High Temperature Applications
- Key words
- Drilling; Operations; Production; USA; California; Salton Sea; Power Transmission; Heat Shield; Dewar Flask; Logging
- Location
- Salton Sea, California; Imperial Valley
- Conference
- Geothermal Resources Council Transactions
- Year
- 1986
- Session
- Fluid sampling; Equipment design; High temperature reservoir
- Language
- English
Abstract
At temperatures in excess of 300°C, standard conductive wire lines cannot be used for signal or power transmission in geothermal wells. At such temperatures, a mechanical slickline can be used to raise and lower instrumentation, but the instrumentation control and power must then be self contained. This paper reviews the development of a battery and timing circuit to control a motor in a Los Alamos National Laboratory sampling tool. The batter pack controller circuitry enclosed in a dewar was used in the Salton Sea Scientific Drilling Project (SSSDP) for temperature approaching 400°C.
Copyright 1986, Geothermal Resources Council. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.