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2018/2
Emulsifiers based on fish oil for enhanced oil recovery
Technical sciences

Authors: Vasiliy V. VASILEVICH graduated from Gubkin Russian State University of Oil and Gas (National Research University) in 2013. He is currently doing research for the degree of Сandidate of Technical Sciences. He is leading engineer of the Scientific and Research Center „Promislovaya Himiya”. He is specialist in the field of oil-field chemistry, enhanced oil recovery and author of more than 10 scientific publications and 1 patent of invention Е-mail: vasily.vasilevich@mail.ru
Mikhail A. SILIN graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1978. He is D Sc., Vice-Rector of Innovations and Commercialization of Gubkin Russian State University (National Research University) of Oil and Gas, Head of the Department of Oil and Gas Processing at Gubkin Russian State University (National Research University) of Oil and Gas. He is author of over 160 scientific publications. E-mail: silin.m@gubkin.ru
Vladimir B. GUBANOV graduated from Moscow Engineering Physics Institute. He is leading researcher of the Scientific and Research Center „Promislovaya Himiya” of Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in the field of seepage studies of agents for production stimulation, enhanced oil recovery, repair and insulation works. He is author more than 80 scientific publications and 15 patents of invention. E-mail: gubanowww@gmail.com
Mikhail М. MUKHIN graduated from Gubkin Russian State University of Oil and Gas in 2007. He is Candidate of Technical Sciences, Head of Analytical Research Sector of Scientific-Educational Center „Promislovaya Himiya” of Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in the fields of acid treatment, infrared spectroscopy, chromatography and mass-spectrometry. He is author of more than 20 scientific publications. E-mail: mmm.himeko@gmail.com

Abstract: Comparative experience of using various fluids in the processes of well con-struction and repairs, formation drilling and killing a well, as well as intensification of oil production and enhanced oil recovery, shows high efficiency of emulsion compositions. At final stage of oil fields development these compounds find a wide application in various enhanced oil recovery technologies.
Synthesis of surfactants which are emulsifiers component of direct and invert emulsions was carried out by sulfonation of technical fish oil (waste from the fish processing industry) with specific fraction composition of fatty acids. The possi-bility of using the obtained emulsifier as an emulsion composition component for enhanced oil recovery is shown and application efficiency is estimated

Index UDK: 622.276.64

Keywords: fish oil, surfactants, emulsions, emulsifiers of inverted emulsions, enhanced oil recovery

Bibliography:
1. Glushchenko V.N., Orlov G.A., Silin M.A. Tekhnologicheskie processy vskrytiya plastov i dobychi nefti s ispol’zovaniem obratnyh ehmul’sij [Technological processes of formation opening and oil recovery using inverse emulsions]. Moscow, Interkontakt Nauka Publ., 2008, 353 p.
2. Bailey’s Industrial Oil and Fat Products vol. 6, edited by F. Shahidi. Hoboken, 2005, New Jersey: John Wiley & Sons.
3. Tundo P., Anastas P., Black D. StC., Breen J., Collins T., Memoli S., Miyamoto J., Polya- koff M., Tumas W. Synthetic pathways and processes in green chemistry. Introductoryoverview, IUPAC, Pure Appl. Chem., 2000, Vol. 72, No. 7, pp. 1207–1228.
4. Fink J. Water-Based Chemicals and Technology for Drilling, Completion, and Workover Fluids, 2015, Waltham: Gulf Profess. Publish.
5. Gao B. and Sharma. M. Society of Petroleum Eng., 2013, J. 18: 829–840. SPE 159700-PA. doi:10.2118/159700-PA
6. Welton T.D., Bryant J. and Funkhouser G.P. SPE International Symposium on Oilfield Chemistry, Texas, 2007, SPE 105815. doi:10.2118/105815-MS.
7. Graciaa A., Lachaise J., Bourrel M., Osborne-Lee I., Schechter R.S. and Wade W.H. Society of Petroleum Eng., 1987, J. 2: 305. doi:10.2118/13030-PA.
8. Zhang J., Zhang M. and Zhang S. Fracturing Fluid, 2010, SPE 133596-MS.
9. Koukounis C., Wade W.H. and Schechter R.S. Society of Petroleum Eng., 1983, J. 23: 301— 310. SPE-8261-PA.
10. Sheng James J. Modern Chemical Enhanced Oil Recovery: Theory and Practice, 2011, Еlsеviеr, Gulf Prоfеss. Publish.
11. Lange K.R. Surfactants: A Practical Handbook, 1999, Cincinnati: Hanser Gardner Publications.
12. Caenn R., Darley H.C.H. and Gray G.R. Composition and Properties of Drilling and Completion Fluids, 2011, Waltham: Gulf Profess. Publish.
13. Mukhin M.M., Silin M.A., Magadova L.A., Rud M.I., Derkach S.R., Vasilevich V.V., Kuchina Y.A. Journal of Dispersion Science and Technology, 2015, doi: 10.1080/01932691.2015. 1088454
14. Kister E.G., Feinstein I.Z., Kasyanov N.M. Emulal — emulsifier for invert emulsion drilling muds. Burenie, 1974, no. 12, p. 15–18 (in Russian).
15. Mukhin M.M., Magadova L.A Vasilevich V.V., Fedoseev P.O., Derkach S.R., Silin M.A. Properties of fish oils used for surfectants synthesis in petroleum industry. Zashchita okruzhayushchej sredy v neftegazovom komplekse, 2015, no. 2, p. 32–37 (in Russian).

2017/4
Research of specific aspects in interaction between oil and acid compositions in porous medium
Chemical sciences

Authors: MAGADOVA graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry. She is Ph.D., Professor of the Department of Chemical Engineering for Oil and Gas Industry of Gubkin Russian State University of Oil and Gas (National Research Univer- sity), director of Scientific and Research Center „Promislovaya Himiya”. She is author of 150 scientific publications, 60 patents and 4 methodological works. She specializes in the field of oil-field chemistry, chemical agents and technologies for production stimulation, enhanced oil recovery, repair and insulation works and oil treatment. E-mail: lubmag@gmail.com
Ljucija F. DAVLETSHINA graduated from Al’met’evsk State Oil Institute in 1998, she is Candidate of Technical Sciences, assistant professor of the Department of Chemical Engineering for Oil and Gas Industry of Gubkin Russian State University of Oil and Gas (National Research University). She specializes in the field of oil-field chemistry. She is author of 60 scientific publications.
E-mail: luchiad@mail.ru
Vladimir B. GUBANOV graduated from Moscow Engineering Physics Institute. He is leading researcher in the Scientific and Research Center „Promislovaya Himiya”. He specializes in the field of seepage studies of agents for production stimulation, enhanced oil recovery, repair and insulation works. He is author of 50 scientific publications and 15 patents of invention.
E-mail: gubanowww@gmail.com
Polina S. MIKHAYLOVA is a student of the Department of Chemical Engineering for Oil and Gas Industry of Gubkin Russian State University of Oil and Gas (National Research University). She is author of 5 scientific publications. E-mail: mihaylovapolly@mail.ru
Viktoria D. VLASOVA is a student of the Department of Chemical Engineering for Oil and Gas Industry of Gubkin Russian State University of Oil and Gas (National Research University). She is author of 3 scientific publications. E-mail: vica-vv@yandex.ru

Abstract: In spite of all the benefits of acid treatment and good practice the efficiency of the process decreases. One of the reasons of this is high viscosity oil emulsions and precipitation formation during acid placement as well as acid interaction with oil in reservoir conditions is one of the reasons of this.
A sample of degassed and dry crude oil from Romashkinskoye oil field was used for investigation of oil hydrocarbon behavior during interaction between oils and acid compositions. Compatibility tests in free volume were made with equal quantities of oil and acid compositions put in a test tube and mixed. After this the stability and viscosity of formed emulsions were determined. Compositions based on hydrochloric and sulfamic acids were studied.
Interaction of the acid compositions in pore volume was studied. The received data was also compared with the results of the experiments with oil, acids, water and surfactants in similar conditions

Index UDK: 622.276.63

Keywords: acid treatment, oil-acid emulsions, seepage studies

Bibliography:
1. Mordvinov V.A., Glushhenko V.N. Reservoir performance and acid composition influence on acidizing efficiency. Geologija, geofizika i razrabotka neftjanyh i gazovyh mestorozhdenij, 2002, no. 11, p. 22-26 (in Russian).
2. Davletshina L.F., Tolstyh L.I., Mikhaylova P.S. On the necessity of hydrocarbons behavior patterns researching with a view to increase of reservoir acidizing effectiveness. Territory NEFTEGAZ, 2016, vol. 4, p. 95-96 (in Russian).
3. Fedorenko V.Ju., Nigmatullin M.M., Petuhov A.S., Gavrilov V.V., Krupin S.V. Acid compositions for bottom-hole formation zone treatment. Ferric ions content optimization as applied to some oils from povolzhskiy region. Vestnik Kazanskogo tehnologicheskogo universiteta, 2011, no. 13, p. 136-140 (in Russian).
4. Amijan V.A., Ugolev V.S. Fiziko-himicheskie metody povyshenija proizvoditel’nosti skvazhin [Physicochemical methods of well’s yield increase]. Moscow, Nedra, 1970, 279 p (in Russian).
5. Kelland M.A. Promyslovaja himija v neftegazovoj otrasli [Production chemicals for the oil and gas industry] (under the ed. of Magadova L.A). Profession, 2015, no. 2, pp. 238-239 (in Russian).
6. Davletshina L.F., Mikhaylova P.S., Akzigitov E.A. Behavior of oils from one oil field while selecting acid compositions for terrigenous reservoir treatments. Trudy Rossijskogo gosudarstvennogo universiteta nefti i gaza imeni I.M. Gubkina, 2017. , no. 2/287, pp. 153-162 (in Russian).
7. Magadov R.S., Silin M.A., Gaevoj E.G., Magadova L.A., Pahomov M.D., Davletshina L.F., Mishkin A.G. Upgrading of acid composition using Neftenol K. Neft’, gaz i biznes, 2007, no. 1-2, p. 93-97 (in Russian).
8. Silin M.A., Magadova L.A., Cygankov V.A., Muhin M.M., Davletshina L.F. Kislotnye obrabotki plastov i metodiki ispytanija kislotnyh sostavov: uchebnoe posobie [Reservoir acidizing and acid system test : a textbook]. PC RGU nefti i gaza imeni I.M. Gubkina, 2011, 119 p. (in Rus- sian).
9. Vahrushev S.A., Kotenev Ju.A. Composition investigations for acid exposure to high-grade carbonate reservoir. Neftegazovye tehnologii i novye materialy. Problemy i reshenija. Sbornik nauchnyh trudov. Ufa: OOO „Monografija”, 2015, p. 252-261 (in Russian).
10. Gavrilova N.N., Nazarov V.V., Jarovaja O.V. Mikroskopicheskie metody opredelenija razmerov chastic dispersnyh materialov: ucheb.posobie [Microscopic methods of definition of particles size in dispersive materials: a textbook] Moscow, RHTU imeni D.I. Mendeleeva, 2012, 52 p. (in Russian).