METHOD OF HEAT TREATMENT OF PRODUCING WELL BORE ZONE Russian patent published in 2010 - IPC E21B43/24 

FIELD: oil and gas production.

SUBSTANCE: invention refers to well completion of various applications for hydrocarbon extraction from low productive formations, particularly drain wells of oil and gas, gas or coal formations. The method involves exposure on a producing well bore zone, preparation during a time period enough for rock shattering, increasing of the exposure intensity for rock shattering far from a well bore. Heat treatment is enabled with using ultrahigh frequency electromagnetic waves provided preheating of the well bore zone and rock water heating at temperature 110-145 °C for 1-3 hours at radiated power of electromagnetic waves 15.5-17 kWt. Thereafter, the exposure intensity to ultrahigh frequency electromagnetic waves is increased to 30-50 kWt provided heating of the producing well bore zone to temperature 300-400°C for 2-5 hours for water heating and rock shattering far from the well bore.

EFFECT: higher well productivity ensured by improved filtration characteristics of the well bore zone at ensured improved filtration characteristics in the well bore zone in the required rock intervals.

6 cl, 1 ex