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25. The treatment of sewage water for the system of
formation pressure maintenance.
26. The types of complications during the operation of wells
and the consequences which they cause.

ЗМ3. The methods of increasing oil-, gas- and gas
condensate recovery from formations and reagents used in
these processes

The forces which act in the productive formations and
drives of the operation of oil and gas deposits. Oil-, gas- and gas
condensate recovery factor and general characteristics of the
methods of its increasing. Hydrodynamic and thermal methods of
oil-, gas- and gas condensate recovery factor increase. Physico-
chemical methods of oil-, gas- and gas condensate recovery factor
increase [3, 5, 6, 11, 13, 14, 15].

Control questions

1. Name and explain the thermal methods of increasing oil
recovery.
2. Application of surfactants for the increase of oil recovery
of productive formations.
3. Application of polymers for the increase of oil recovery
of productive formations.
4. Application of alkalis, acids, foams, emulsions for the
increase of oil recovery of productive formations.
5. Application of micellar solutions for the increase of oil
recovery of productive formations.
6. Application of carbon dioxide for the increase of oil
recovery of productive formations.

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