System for employing high temperature batteries for making measurements in a borehole
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United States of America Patent
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-
Nov 15, 1983
Issued Date -
N/A
app pub date -
Apr 12, 1982
filing date -
Dec 5, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A DC power source for use in a wide range of variable temperatures employing a battery having the characteristic that it is substantially dormant at normal ambient temperatures and operable only at temperatures substantially above normal ambient temperatures, including a heat retaining housing in which the battery is positioned and a controllable heat source within the housing to maintain the temperature of the battery within a preselected elevated range corresponding to the effective operating temperature characteristics of the battery.
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