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An integrated approach to the research of the composition and properties of bituminous oil at the Ashalchinskoye field

UDK: 665.61.03
DOI: 10.24887/0028-2448-2018-10-68-71
Key words: bituminous oil, rheology, chromatography, spectrophotometry, refractometry, thixotropic properties, isoprenoid coefficient, refraction intercept, oil base
Authors: R.S. Khisamov (Tatneft PJSC, RF, Almetyevsk), E.F. Zakharova (Almetyevsk State Petroleum Institute, RF, Almetyevsk), D.M. Gumerova (Almetyevsk State Petroleum Institute, RF, Almetyevsk), V.A. Sayakhov (Almetyevsk State Petroleum Institute, RF, Almetyevsk)

According to estimates, the Russian Federation has 30 to 70 billion tons of technically recoverable heavy oil and natural bitumen resources, and this makes the issue of their commercial development a matter of national importance. Considerable reserves of super-viscous oil and natural bitumen are already being developed in Urals-Volga oil and gas province. Over the past 40 years, scientists and oilmen of Tatarstan have developed and received approval a variety of natural bitumen field development techniques such as the steam assisted gravity drainage (SAGD) and cyclic steam injection. Effective extraction of hard-to-recover reserves is impossible without an adequate understanding of the processes occurring in the development of deposits. Determination of the natural bitumen’s characteristics is important when choosing methods for their extraction, including detailed information on the geological structure of the reservoir, the properties of the rocks composing the reservoir, and also the control data of the variety of physical and chemical processes during the movement of formation fluids. Improvement of technological processes for the production of bituminous oil is impossible without fundamental knowledge of the features of its rheological properties. Understanding the rheology and structure formation processes relationship in oil dispersed systems makes it possible to purposefully sel ect the reagents for extraction, the parameters of the physical impact on the formation (including thermal methods). Therefore, a complex, systematic approach to assessing the changes occurring in deposits in a wide range of variations in their molecular, fractional, and component composition is essential.

Within the framework of the Federal Targeted Program for Research and Development in Priority Areas of Development of the Russian Scientific and Technological Complex for 2014-2020, Almetyevsk State Oil Institute carries out the work to be performed under agreement 14.607.21.0195 “Research and development solutions to recover from unconventional reservoirs (Domanic) and hard-to-recover crude oil reserves (bitumen) on the basis of experimental studies". Experimental studies are aimed at improving the process of steam gravity drainage and cyclic steam injection in terms of increasing the flow rate, the oil vapor ratio, energy consumption. The paper presents the results of the evaluation of the composition and properties of bituminous oil using rheological, chromatographic and optical studies.

References

1. Khisamov R.S., Amerkhanov M.I., Khanipova Yu.V., Change of properties and composition of heavy oil in the process of Ashalchinskoye field development by steam-assisted gravity drainage method (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2015, no. 9, pp. 78–81.

2. Gussamov I.I., Petrov S.M., Ibragimova D.A. et al., Structurally grouped composition of high-viscosity oil fr om the Ashalchinskoye field (In Russ.), Vestnik Kazanskogo tekhnologicheskogo universiteta, 2014, no. 7, pp. 248–251.

3. Gil'manshin A.F., Nekotorye zakonomernosti prostranstvennogo izmeneniya koeffitsienta svetopogloshcheniya nefti v predelakh mestorozhdeniy TatASSR i veroyatnost' ispol'zovaniya ikh dlya resheniy geologo-promyslovykh zadach (Some regularities of the spatial variation of the light absorption coefficient of oil within the limits of the deposits of the Tatar ASSR and the probability of using them for solving field-geologicalВ  problems): thesis of candidate of technical science, Moscow, 1965, 22 p.

4. Cherkasova E.I., Safiullin I.I., Features of extraction of high-viscosity oil (In Russ.), Vestnik Kazanskogo tekhnologicheskogo universiteta, 2015, no. 6, pp.105–108.

5. De Souza-MendesВ  P.R., Thompson R.L., A unified approach to model elasto-viscoplastic thixotropic yieldstress materials and apparent yield-stress fluids, Rheol. Acta, 2013, V. 52, pp. 673–694.

6. DevlikamovВ  V.V., Markhasin I.L., Babalyan G.A., Opticheskie metody kontrolya za razrabotkoy neftyanykh mestorozhdeniy (Optical methods for controlling the development of oil fields), Moscow: Nedra Publ., 1970, 160 p.

7. Ganiev B.G., Gus'kova I.A., Nurgaliev R.Z., GabdrakhmanovВ  A.T., Study of optical properties of oil of Vishnevo-Polyanskoe deposit (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2018, no. 6, pp. 117–120.

8. Bogomolov A.I., Gayle A.A., Gromova V.V. et al., Khimiya nefti i gaza (Chemistry of oil and gas): edited by Proskuryakov V.A., Drabkin A.E., St. Petersburg: Khimiya Publ., 1995, 448 p.

9. Yusupova T.N., Ganeeva Yu.M., Romanov G.V., Barskaya E.E., Fiziko-khimicheskie protsessy v produktivnykh neftyanykh plastakh (Physical and chemical processes in the productive oil reservoirs), Moscow: Nauka Publ., 2015, 412 p.

10. Petrov Al.A., Uglevodorody nefti (Hydrocarbons of oil), Moscow: Nauka Publ., 1984, 264 p.В В 

According to estimates, the Russian Federation has 30 to 70 billion tons of technically recoverable heavy oil and natural bitumen resources, and this makes the issue of their commercial development a matter of national importance. Considerable reserves of super-viscous oil and natural bitumen are already being developed in Urals-Volga oil and gas province. Over the past 40 years, scientists and oilmen of Tatarstan have developed and received approval a variety of natural bitumen field development techniques such as the steam assisted gravity drainage (SAGD) and cyclic steam injection. Effective extraction of hard-to-recover reserves is impossible without an adequate understanding of the processes occurring in the development of deposits. Determination of the natural bitumen’s characteristics is important when choosing methods for their extraction, including detailed information on the geological structure of the reservoir, the properties of the rocks composing the reservoir, and also the control data of the variety of physical and chemical processes during the movement of formation fluids. Improvement of technological processes for the production of bituminous oil is impossible without fundamental knowledge of the features of its rheological properties. Understanding the rheology and structure formation processes relationship in oil dispersed systems makes it possible to purposefully sel ect the reagents for extraction, the parameters of the physical impact on the formation (including thermal methods). Therefore, a complex, systematic approach to assessing the changes occurring in deposits in a wide range of variations in their molecular, fractional, and component composition is essential.

Within the framework of the Federal Targeted Program for Research and Development in Priority Areas of Development of the Russian Scientific and Technological Complex for 2014-2020, Almetyevsk State Oil Institute carries out the work to be performed under agreement 14.607.21.0195 “Research and development solutions to recover from unconventional reservoirs (Domanic) and hard-to-recover crude oil reserves (bitumen) on the basis of experimental studies". Experimental studies are aimed at improving the process of steam gravity drainage and cyclic steam injection in terms of increasing the flow rate, the oil vapor ratio, energy consumption. The paper presents the results of the evaluation of the composition and properties of bituminous oil using rheological, chromatographic and optical studies.

References

1. Khisamov R.S., Amerkhanov M.I., Khanipova Yu.V., Change of properties and composition of heavy oil in the process of Ashalchinskoye field development by steam-assisted gravity drainage method (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2015, no. 9, pp. 78–81.

2. Gussamov I.I., Petrov S.M., Ibragimova D.A. et al., Structurally grouped composition of high-viscosity oil fr om the Ashalchinskoye field (In Russ.), Vestnik Kazanskogo tekhnologicheskogo universiteta, 2014, no. 7, pp. 248–251.

3. Gil'manshin A.F., Nekotorye zakonomernosti prostranstvennogo izmeneniya koeffitsienta svetopogloshcheniya nefti v predelakh mestorozhdeniy TatASSR i veroyatnost' ispol'zovaniya ikh dlya resheniy geologo-promyslovykh zadach (Some regularities of the spatial variation of the light absorption coefficient of oil within the limits of the deposits of the Tatar ASSR and the probability of using them for solving field-geologicalВ  problems): thesis of candidate of technical science, Moscow, 1965, 22 p.

4. Cherkasova E.I., Safiullin I.I., Features of extraction of high-viscosity oil (In Russ.), Vestnik Kazanskogo tekhnologicheskogo universiteta, 2015, no. 6, pp.105–108.

5. De Souza-MendesВ  P.R., Thompson R.L., A unified approach to model elasto-viscoplastic thixotropic yieldstress materials and apparent yield-stress fluids, Rheol. Acta, 2013, V. 52, pp. 673–694.

6. DevlikamovВ  V.V., Markhasin I.L., Babalyan G.A., Opticheskie metody kontrolya za razrabotkoy neftyanykh mestorozhdeniy (Optical methods for controlling the development of oil fields), Moscow: Nedra Publ., 1970, 160 p.

7. Ganiev B.G., Gus'kova I.A., Nurgaliev R.Z., GabdrakhmanovВ  A.T., Study of optical properties of oil of Vishnevo-Polyanskoe deposit (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2018, no. 6, pp. 117–120.

8. Bogomolov A.I., Gayle A.A., Gromova V.V. et al., Khimiya nefti i gaza (Chemistry of oil and gas): edited by Proskuryakov V.A., Drabkin A.E., St. Petersburg: Khimiya Publ., 1995, 448 p.

9. Yusupova T.N., Ganeeva Yu.M., Romanov G.V., Barskaya E.E., Fiziko-khimicheskie protsessy v produktivnykh neftyanykh plastakh (Physical and chemical processes in the productive oil reservoirs), Moscow: Nauka Publ., 2015, 412 p.

10. Petrov Al.A., Uglevodorody nefti (Hydrocarbons of oil), Moscow: Nauka Publ., 1984, 264 p.В В 



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