Justification of cyclic flooding of reservoirs with supercollectors at passing of deformation processes

Authors: I.T. Mischenko, K.A. Bravichev, A.N. Zagainov (Gubkin Russian State University of Oil and Gas, Rf, Moscow)

Key words: reservoir with supercollector, cyclic flooding, asymmetrical cycle, deformation processes, numerical researches.

The article presentsresults of numerical researches of oil recovery processes with cyclic flooding application for reservoirs with supercollectors. Estimation of influence of elastic deformations at net reservoir stress variation is carried out. It’s shown that elastic deformations lead to increasing of formation pressure decrease period duration, resulting in oil recovery increase and water-oil ratio decrease.

References

1. Mishchenko I.T., Bravichev K.A., Gubanov V.B., Acceptable limits of variation of effective pressure, excluding irreversible deformation of the system (In Russ.) Neft', gaz i biznes, 2009, no. 10, pp. 51-53.

2. Mishchenko I.T., Bravicheva T.B., Ermolaev A.I., Vybor sposoba ekspluatatsii skvazhin neftyanykh mestorozhdeniy s trudnoizvlekaemymi zapasami (Selecting the method of well operation in oil fields with hard-to-recover reserves), Moscow: Neft' i gaz Publ., 2005, 448 p.

3. Mishchenko I.T., Bravichev K.A., Zagaynov A.N., Improving of development efficiency of the porous fractured type carbonate reservoirs with low-permeability hydrophilic matrix (In Russ.), Neft', gaz i biznes, 2013, no. 10, pp. 34-42.

4. Mishchenko I.T., Bravichev K.A., Zagaynov A.N., Laws of the porous fractured type carbonate reservoirs properties influencing on development efficiency

at water flooding (In Russ.), Neft', gaz i biznes, 2013, no. 11, pp. 35-42.

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