FIELD: oil and gas industry.
SUBSTANCE: method involves arrangement of an fibre-optic cable in a production well; determination of well shaft temperature; build-up of a temperature vs. well depth graph; indication on the graph of a temperature rise minimum by 10 degrees, which is the closest one to the well head; determination of depth of well liquid level as corresponding to depth of the indicated temperature rise.
EFFECT: determination of liquid level in a well with high temperature for extraction of high-viscosity oil.
1 dwg
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