FIELD: fire source detection technology.
SUBSTANCE: method includes measurements of electric resistance of double electric cable lowered into well. On basis of value of lowering of resistance location of fire source is determined along drilling well. Along electric drive length contacts with fusible metal are placed, with closing of which a moment of approach to fire source is detected. One more electric cable is additionally lowered into well, equal to well depth, higher then which movement of fire source is not allowed.
EFFECT: higher reliability and trustworthiness of control over location of fire source.
2 cl, 1 dwg
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Authors
Dates
2004-09-20—Published
2002-01-24—Filed