RESEARCH OF CONDITIONS AND SCOPES OF WATER-GAS INFLUENCE ON THE LAYER WITH THE PURPOSE OF INCREASE IN THE CURRENT AND FINAL OIL RECOVERY FACTOR

Telkov, V.P.; Egorov, Y.A.

Авторы: Telkov V.P., Egorov Y.A.
Сборник: Russian Oil and Gas Technical Conference and Exhibition
Год издания: 2008
Первая страница: 1144
Последняя страница: 1154
DOI: 10.2118/117379-RU
Аннотация: On a background of the relative well-being connected to the high prices for oil insufficient attention it is given difficult-developing to stocks of oil which share in total amount of stocks constantly increases. In due course it can lead to full development of easy-developing stocks of oil, and the kept need for fuel and raw material for the chemical industry will lead to necessity of development difficult-developing stocks to which it is possible to relate oil in collectors with low permeability and essential heterogeneity, or to oil of the high viscosity.Displacement of the oil by water, widely distributed in Russia, for fields with difficult-developing stocks it appears insufficiently effective. Therefore, oil recovery of developed deposits decreases.In these conditions significant interest is shown to gas technologies of increase oil recovery, first of all to the water-gas influence (WGI) allowing not only to receive from a layer additional oil, but also it is useful to use the associated gas now aimlessly burnt on torches.Following versions WGI are known: consecutive injection of water and gas, water alternating gas injection, simultaneous water and gas injection as a water-gas mixture. The consecutive and alternate injection of water and gas is realized all over again by water injection by means of classical waterflooding system, then gas injection by means of high pressure compressor. One or several gas portions are compressed depending on sold technology of influence. By pumping before gas some volume of oil-water-soluble surfactant can increase essentially effect from influence due to creation in a layer of a mode of the current close to mixing up replacement. Gas is kept in oil as microbubbles, which increases volume of oil and reduces its viscosity at simultaneous increase beforebreaking volume of gas (the maximal volume of gas which can't break into producing wells).Simultaneous injection of water and gas as a water-gas mixture allows reaching higher values of oil recovery, than alternate. The water-gas mixture is prepared and injected in wells by using jet apparatus, booster piston pumps-compressors or jet and electrical centrifugal pumps systems.
Добавил в систему: Телков Виктор Павлович

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Интеллектуальная Система Тематического Исследования НАукометрических данных

RESEARCH OF CONDITIONS AND SCOPES OF WATER-GAS INFLUENCE ON THE LAYER WITH THE PURPOSE OF INCREASE IN THE CURRENT AND FINAL OIL RECOVERY FACTORстатья Исследовательская статья

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