Geologicheskii Vestnik

The authors conducted a comprehensive study of the stress effect on the permeability of the rock of the productive formation. The study included both experimental work on natural low-permeable core samples and mathematical modeling of concomitant effects. As part of the preparation of the experimental work, a special technique was developed for conducting filtration experiments on core samples. The essence of the technique is the use of a multiple stepwise compression of a rock sample with the determination of its permeability at each step. The experiments were carried out both in gas and in liquid under thermobaric conditions of reservoir occurrence, on modern laboratory equipment. The experiments results confirmed the effect of an irreversible decrease in the rock permeability with an increase in the effective pressure during the first loading cycle, as well as the presence of elastic deformations in subsequent loading-unloading cycles. As a result of processing the experimental data, the corresponding correlations in the form of JonesOwens were obtained [Jones, Owens, 1980]. The obtained coefficients of permeability degradation, depending on the loading, were used at the stage of mathematical modeling while building hydrodynamic model. To accomplish this stage, the authors have developed a software module for taking into account the dependence of permeability on the total stress-strain state in hydrodynamic modeling. To calculate the stress tensor components, the boundary element method is used, and the allowance for the dependence of permeability on the stress state is implemented in the form of an iterative conjugation with a hydrodynamic model. The modeling results revealed that taking into account the influence of the stress-strain state on permeability allows to detect additional zones of permeability deterioration compared with models that take into account only the dependence on reservoir pressure. In the future, on the base of the developed module, it is planned to create a tool for investigating the change in rock permeability with changing its stress-strain state for various combinations of well operation modes, which will allow modernizing the method of transferring wells to the reservoir pressure maintenance system, clarifying technological reserves of low-permeable oil fields and optimizing the strategy of low-permeability reservoirs development. In the future, the obtained technology for recording changes in rock permeability with a change in its stress-strain state can be transmitted to other geological objects, including gas fields.

liquid industrial effluents, underground waste disposal, deep aquifers, sedimentary basins, underground nuclear explosions

• Abdrakhmanov R.F. Tekhnogenez v podzemnoi gidrosfere Predural’ya [Technogenesis in the underground hydrosphere of the Urals] / USC RAS. Ufa, 1993. 208 p. (In Russian).
• Abdrakhmanov R.F. Gidrogeoekologiya Bashkortostana [Hydrogeoecology of Bashkortostan]. Ufa: Informreklama, 2005. 344 p. (In Russian).
• Abdrakhmanov R.F., Popov V.G. Mineral’nye lechebnye vody Bashkortostana [Mineral medicinal waters of Bashkortostan]. Ufa: Gilem, 1999. 208 p. (In Russian).
• Abdrakhmanov R.F., Martin V.I., Popov V.G., Rozhdestvenskiy A.P., Smirnov A.I., Travkin A.I. Karst Bashkortostana [Karst of Bashkortostan]. Ufa: Informreklama, 2002. 383 p. (In Russian).
• Akmanov R.Kh. Prichiny zagryazneniya presnykh podzemnykh vod rayonov neftedobychi Bashkirii [Causes of contamination of fresh underground waters in the areas of oil production in Bashkortostan] / BSC UrO RAS. Ufa, 1992. 122 p. (In Russian).
• Brown H.S., Cook B.J., Krueger R., Shatkin J.A. Reassessing the History of U.S. Hazardous Waste Disposal Policy — Problem Definition, Expert Knowledge and Agenda-Setting // RISK: Health, Safety & Environment. 1997. V. 8, No. 3. P. 249–272.
• Emel’yanov B.M. Raskryvaya pervye stranitsy [Opening the first pages]. Ekaterinburg: «Ural’skii rabochii» Press, 1997. 344 p. (In Russian).
• Gaev A.Ya., Shchugorev V.D., Butolin A.P. Podzemnye rezervuary [Underground tanks]. Leningrad: Nedra, 1986. 223 p. (In Russian).
• Gidrogeologicheskie i gidrogeokhimicheskie issledovaniya prireshenii problemy sbrosa promstokov v glubokozalegayushchie karbonatnye porody (na primere Kuibyshevskogo Povolzh’ya i Bashkirii) [Hydrogeological and hydrogeochemical studies in solving the problem of discharging industrial effluents into deep-lying carbonate rocks (at the example of Kuibyshevsky Volga and Bashkiria)] / K.E. Pit’eva (ed.). Moscow: MSU Press, 1972. 350 p. (In Russian).
• Gidrogeologicheskie issledovaniya dlya zakhoroneniya promyshlennykh stochnykh vod v glubokie vodonosnye gorizonty [Hydrogeological research for disposal of industrial wastewater into deep aquifers] / K.I. Antonenko, E.G. Chapovskii (eds.). Moscow: Nedra, 1976. 312 p. (In Russian).
• Gidrogeologicheskie issledovaniya dlya obosnovaniya podzemnogo zakhoroneniya promyshlennykh stokov [Hydrogeological studies to substantiate underground disposal of industrial wastewater] / V.A. Grabovnikov (ed.). Moscow: Nedra, 1993. 335 p. (In Russian).
• Khod’kov A.E., Valukonis G.Yu. Formirovanie i geologicheskaya rol’ podzemnykh vod [Formation and geological role of groundwater]. Leningrad: LGU Press, 1968. 216 p. (In Russian).
• Maksimov M.I. Meropriyatiya po uluchsheniyu sistemy razrabotki Tuimazinskogo neftyanogo mestorozhdeniya [Measures to improve the development system of the Tuymazinskoye oil field] // Razrabotka neftyanykh mestorozhdenii Bashkirii [Development of oil fields in Bashkiria]. Moscow:
• Gostoptekhizdat, 1959. P. 16–36. (In Russian). Mavropoulos A., Menegaki M., Kaliampakos D. Underground hazardous waste disposal: a dynamic alternative to current hazardous waste management // Waste Management and the Environment II / V. Popov, H. Itoh, C.A. Brebbia, S. Kungolos (Eds.). WIT Press, 2004. P. 159–168.
• Popov V.G. Gidrogeokhimiya i gidrogeodinamika Predural’ya [Hydrogeochemistry and hydrogeodynamics of the CisUrals]. Moscow: Nauka, 1985. 278 p. (In Russian).