FIELD: oil and gas industry.
SUBSTANCE: invention can be used at establishment and operation of deposits in area of perennial frozen rocks distribution. In method connection of vertical heat flow in well with horizontal heat flow from well into rocks is taken into account: how oil is cooled down during lifting from bottom to head, how rocks are warmed (melted) around well, based on this complex integro-differential condition at boundary of well and mine rocks is obtained. Temperature field of rocks is determined by numerical simulation. Temperature field in well fluid is found based on solving of heat flow equation.
EFFECT: higher prediction accuracy of thermal state of frozen rocks at well operation, id est defrosting radius around well and calculation of oil temperature in well.
1 cl, 1 dwg
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