Geology, geography and global energy

Scientific and Technical Journal

Physical and chemical methods of increase of oil and gas return of layer and of oil and condensate extraction

2014. №1, pp. 104-110

Dolgova Ekaterina Yu. - Students, Astrakhan State University, 1 Shaumyana sq., Astrakhan, 414000, Russian Federation,, ka.dolgova@yandex.ru

Merkitanov Nikolay A. - Students, Astrakhan State University, 1 Shaumyana sq., Astrakhan, 414000, Russian Federation,, Geologi2007@yandex.ru

Tulegenov Albert R. - Students, Astrakhan State University, 1 Shaumyana sq., Astrakhan, 414000, Russian Federation,, Geologi2007@yandex.ru

In the modern world there is an actual and burning issue of extraction of residual oil, gas and condensate from operated layers. It is one of the most important economic problems. In modern conditions at design of process of development of oil and gas-condensate fields coefficient of konechkny oil recovery of layers in most cases accept to 50 % and for gas deposits to 90 %. Therefore works on finding of ways a povyshekniya of final oil and gas return of operating layers and condensate extraction are considerably strengthened recently. One of the most effective and actual methods thanks to whom the solution of the problem of an effective intensification of oil is possible, gas and condensate from productive layer, physical and chemical methods of increase of oil and gas return of layer are. In work the most effective, widely applied and economic physical and chemical methods of increase of oil and gas return of layer are analysed. Flooding of oil pools is the high-potential mastered method of increase final нефегазоотдачи layer on a stravneniye with oil recovery of layers when developing on natural modes of the dissolved gas and a gas cap. Flooding of layer is applied in wide scales in all oil-producing countries. The special attention in article is paid to zakontorny flooding of a deposit by solutions of polymers as it is one of the most popular physical and chemical methods who is widely applied in Russia and abroad. Such physical and chemical methods, as flooding by solutions of the superficially active agents (SAA), by micellar solutions, carbonic acid, solutions of alkalis, sulfuric acid and oil replacement by gas of a high pressure (saykling) are considered.

Key words: physical and chemical methods of increase of oil recovery of layer,polymers,hydrocarbonic gases,alkali,oil saturation,

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