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2017/4
Relative phase permeabilities hysteresis in anisotropic reservoirs
Geosciences

Authors: Valery V. KADET graduated from MEPhI in 1976. He is professor, Doctor of Technical Science, Head of the Department of Petroleum and Subsurface Hydromechanics at Gubkin Russian State University of Oil and Gas (National Research University). He is specialist in subsurface hydromechanics, theory of multy-phase fluid flow in porous media, percolation theory. He has authored more than 200 scientific papers, 15 patents and certificates, 6 monographies. He has prepared 7 PhDs. E-mail: kadetvvl@gubkin.ru
Artur M. GALECHYAN graduated Gubkin Russian State University of Oil and Gas in 2014. Schlumberger wireline field engineer, graduand of petroleum and subsurface hydromechanics department in subsurface hydrodynamics, Gubkin Russian State University of Oil and Gas (National Research University). Specialist in underground hydromechanics, percolation theory and wireline well logging. Author of 13 scientific papers. E-mail: agalechyan@slb.com

Abstract: Percolation theory was used to build relative permeability curves along the main axes of permeability tensor taking into account the hysteresis effect. Radius distribution measurements along the main axes of permeability tensor were taken for experimental reference. Such approach demonstrates the tensor nature of relative permeability. Accounting for the dependence of relative permeability on both displacement sequence and flow direction increases the accuracy of reservoir hydrodynamic models

Index UDK: 532.546

Keywords: relative phase permeabilities, hysteresis, anisotropy, percolation

Bibliography:
1. Wei J.Z., Lile O.B. Influence of wettability and saturation sequence on relative permeability hysteresis in unconsolidated porous media/SPE 25282, 1992.
2. Braun E.M., Holland R.F. Relative permeability hysteresis: laboratory measurements and a conceptual model/SPE 28615, 1995.
3. Hawkins J.T., Bouchard A.J. Reservoir-engineering implications of capillary-pressure and re-lative-permeability hysteresis/SPWLA Journal, 1992, July-August.
4. Kadet V.V., Galechyan A.M. Perkoljacionnaja model’ gisterezisa otnositel’nyh fazovyh pronicaemostej. Prikladnaja mehanika i tehnicheskaja fizika, 2013, t. 54, no. 3, p. 95-105.
5. Kadet V.V., Galechyan A.M. Percolation modeling of relative permeability hysteresis. Journal of Petroleum Science and Engineering, 2014, v. 119, p. 139–148.
6. Kadet V.V., Galechyan A.M. Percolation modeling of relative permeability hysteresis including surface and rheological effects. 14th European Conference on the Mathematics of Oil Recovery „ECMOR XIV”, 8–11 September 2014, Catania, Sicily, Italy
7. Galechyan A.M. Perkoljacionnyj analiz gisterezisa otnositel’nyh fazovyh pronicaemostej s uchetom nanorazmernyh javlenij na poverhnosti porovogo prostranstva. V Mezhdunarodnaja konfe-rencija „Nanojavlenija pri razrabotke mestorozhdenij uglevodorodnogo syr’ja: ot nanomineralogii i nanohimii k nanotehnologijam” (Nanoteh-Neftegaz 2016), 22-23 nojabrja 2016 g., Moskva, Rossija.
8. Kadet V.V., Dmitriev N.M., Kuzmichev A.N., Tsybulskiy S.P. Technique and results of complex laboratory researches of anisotropic filtration and capacity properties in cores. SPE 161999, 2012 SPE Russian Oil & Gas Exploration & Production Technical Conference and Exhibition, 16- 18 October 2012, Moscow, Russia.
9. Broadbent S.R., Hammersley J.M. Percolation processes. Proc. Cambr. Phil. Soc., 1957, v. 53, no. 3, p. 629-645.
10. Kadet V.V., Selyakov V.I. Perkoljacionnaja model’ dvuhfaznogo techenija v poristoj srede. Izv. AN SSSR. Mehanika zhidkosti i gaza, 1987, no. 1, p. 88-95.
11. Selyakov V.I., Kadet V.V. Perkoljacionnye modeli processov perenosa v mikroneodno-rodnyh sredah. M.: 1-j TORMASh, 2006.
12. Yusupova T.N., Romanova U.G., Petrova L.M., Romanov G.V., Ovchinnikov V.V., Muslimov R.Kh., Mukhametshin R.Z. Hydrophobization of reservoir rock in bed conditions. PS  97-125, 1997, Annual Technical Meeting, 8–11 June 1997, Calgary, Alberta.
13. Gudok N.S., Bogdanovich N.N., Martynov V.G. Opredelenie fizicheskih svojstv neftevodo-soderzhashhih porod: Ucheb. posobie dlja vuzov. M.: OOO „Nedra-Biznescentr”, 2007, p. 592.
14. Lenormand R., Zarcone C., Sarr A. Mechanisms of the displacement of one fluid by another in a network of capillary ducts. J. Fluid Mech., 1983, no. 135, p. 337-353.

2014/2
Account of osmotic swelling clays in modeling clay reservoirs for oil development
Drilling and development of hydrocarbon fields

Authors: Valery V. CADET was born 1953. He graduated from the Moscow Engineering Physics Institute in «Theoretical Nuclear Physics». He has been Head of the Department of Petroleum and Underground fluid mechanics at Gubkin Russian State University of Oil and Gas.. E-mail: trudyrgung@gubkin.ru
Pavel S. CHAGIROV was born in 1988; he graduated from Gubkin Russian State University of Oil and Gas in 2012 with Master’s Degree. He is currently doing a postgraduate course of studies at the Department of Petroleum and Underground fluid mechanics at Gubkin Russian State University of Oil and Gas. E-mail: pavel.chagirov@enconco.ru

Abstract: The analysis of osmotic swelling on the border between the injected agent and clay-containing rock allowed obtaining the dependence of the reservoir properties on the clay content and mineralization rate of injected water. The dependnces obtained show that with the decrease in salinity of the injected agent the pore space structure changes, i.e. the share of «fine» pores grows thus by reducing the share of «larg» ones, the variance of the pore radius distribution function as well as porosity decrease. On the basis of micromechanical description of the process of fluid flow in a lattice model of the porous medium analytical dependences of relative permeability curves as a function of salt concentration in the injected fluid were obtained. The process of two-phase flow of Newtonian fluids, one of which is a solution of electrolyte, in clay-containing porous medium was simulated. The influence of the parameters of the porous medium and injected saline fluid on the process of oil displacement was studied

Index UDK: УДК 622.276

Keywords: clay reservoir, flow in porous medium, osmotic swelling, percolation simulation

Bibliography:
1. Tang G.-Q. & Morrow N.R. Influence of brine composition and fines migration on crude oil/brine/rock interactions and oil recovery. Journal of Petroleum Science and Engineering, 1999, no. 24, p. 99-111.
2. Morrow N., Buckley J. Improved oil recovery by Low-Salinity Waterflooding. SPE 129421.
3. Austad T., Rezaeidoust A. & Puntervold T. Chemical Mechanism of Low Salinity Water Flooding in Sandstone Reservoirs. SPE Improved Oil Recovery Symposium. Tulsa, Oklahoma, 2010. USA: Society of Petroleum Engineers.
4. Hanin A.A. Porody i kollektory nefti i gaza i ih izuchenie. М.: Nedra, 1969. P. 140-141.
5. Wilcox R., Fisk J. Test show shale behavior, aid well planning. Oil and gas J., 1983, 12/IX, v. 81, no. 37.
6. Rumynina V.G. Ocenka vlijanija atomno-promyshlennogo kompleksa na podzemnye vody i smezhnye prirodnye ob’ekty. S-Pb.: Izdatel’stvo S.-Peterburgskogo universiteta, 2003, p. 85-90.
7. Kadet V.V. Metody teorii perkoljacii v podzemnoj gidromehanike. M.: centrlitneftegaz, 2008. — 96 p.
8. Stupochenko V.E. Vlijanie glinistosti kollektora na polnotu vytesnenija nefti vodoj. Geologo-geofizicheskie aspekty obosnovanija kojefficienta nefteotdachi. M.: VNIGNI, 1981, vyp. 228, p. 59-79.
9. Havkin A.Ja., Alishaeva O.M. O vlijanii mineralizacii plastovyh vod na fazovye pronicaemosti i vybor optimal’noj tehnologii polimernogo vozdejstvija na neftjanoj plast. Vniineft’, 1983, 11 p.
10. Basniev K.S., Kochina I.N., Maksimov V.M. Podzemnaja gidromehanika. M.: Nedra, 1993, 408 p.
11. Zareckij S.A., Suchkov V.N., Zhivotinskij P.B. Jelektrohimicheskaja tehnologija neorganicheskih veshhestv i himicheskie istochniki toka. M: Vysshaja shkola, 1980, p. 34.
12. Seljakov V.I., Kadet V.V. Perkoljacionnye modeli processov perenosa v mikroneodnorodnyh sredah. M.: 1-j topmash, 2006, 247p.
13. Uljasheva N.M., Ivenina I.V. Vlijanie ionnoj sily rastvora na skorost’ uvlazhnenija glinistyh porod. Stroitel’stvo neftjanyh i gazovyh skvazhin na sushe i na more [Construction of oil and gas wells on land and sea], 2010, no. 4, p. 28–30.
14.
Makeeva T.G. Metodicheskie novacii dlya umen’sheniya pogreshnosti opredeleniya plotnosti tverdoi fazi dispersnih gruntov standartnim metodom. Estestvennie i tehnicheskie nauki [Natural and technical sciences], 2009, no. 5, p. 231-243.
15. Khramchenkov M.G., Eirish M.V., Kornil’cev U.A. Izuchenie strukturnih izmenenii I termodinamicheskaya model’ fil’tracionnih svoistv glinistih porod. Izv. RAN. Geoekologiya [Russian Academy of Science, Geoecology], 1996, no. 5, p. 63-73.

2009/1
Temperature influence on electrolyte effective viscosity in porous media
Drilling and development of hydrocarbon fields

Authors: Valery V. KADET (b. 1953) doctor of technical sciences, head of Dept. Petroleum and Reservoir Hydromechanics at Gubkin Russian State University of Oil & Gas. Honorary worker of oil and gas industry, Full Member of the Russian Academy of Natural Sciences. Sphere of academic interests - percolation modeling of transfer processes in porous media and deve-lopment of foundations for improved well productivity technology. Published over 150 works including 4 monographs, 14 textbooks and teaching aids. E-mail: kadetvvl@gubkin.ru
Andrey S. KORYUZLOV (b. 1981) post graduate student of the Dept. Petroleum and Reservoir Hydromechanics at Gubkin Russian State Univesity of Oil & Gas., sphere of academic interests - percolation modeling of fluid flow in porous media, 8 publications.

Abstract: The percolation model for electrokinetic flow of electrolyte in porous media is presented. Within the bounds of this model taking into account ionic the solution concentration, zeta-potential, porometric curve and surface properties of porous media the influence of temperature on effective wiscosity was investigated. It is determined that in the presence of sufficient amount of capillaries with radius comparable with the thickness of EDL, the rate of filtration greatly decreases as against the velocity of filtration without influence of EDL, that is interpreted as electro-viscous effect in porous media. The influence of temperature on effective viscosity depends on porometric curve shape: effective viscosity for fine-pore media is more sensitive to temperature change. The dependence of effective viscosity obtained within differs from classic Andrade law.

Index UDK: 532.546

Keywords: porous medium, electrolyte flow in porous medium, percolation theory, double electrical layer, electrical viscosity effect

Bibliography:

2009/1
The calculation of electroosmotic flow in a slit microchannel with applied external electric field
Drilling and development of hydrocarbon fields

Authors: Valery V. KADET (b. 1953) doctor of technical sciences, head of Dept. Petroleum and Reservoir Hydromechanics at Gubkin Russian State University of Oil & Gas. Honorary worker of oil and gas industry, Full Member of the Russian Academy of Natural Sciences. Sphere of academic interests - percolation modeling of transfer processes in porous media and deve-lopment of foundations for improved well productivity technology. Published over 150 works including 4 monographs, 14 textbooks and teaching aids. E-mail: kadetvvl@gubkin.ru
Pavel S. KORYUZLOV (b. 1981) graduate student of Dept. Petroleum and Reservoir Hydromechanics at Gubkin Russian State University of Oil & Gas. The sphere of his academic interests is theoretical and experimental study of electroosmotic flows in capillaries and fissures, 7 publications.

Abstract: The process of electroosmotic flow in a slit microchannel which thickness of an order of several EDL is investigated. The model and derived solutions allow to predict velocity profiles and time of the steady state flow development in cases of both altering and current external electric field. Analytical solutions for spatial EDL potential distribution and velocity are obtained. The results of the simulation are in a good agreement with the experimental data

Index UDK: 532.546

Keywords: electroosmotic flow, electrokinetic parameters

Bibliography:

2011/3
Percolation analysis of the limits of applicability of the linear filtration law
Drilling and development of hydrocarbon fields

Authors: Valery V. KADET (b. 1953) doctor of technical sciences, head of Dept. Petroleum and Reservoir Hydromechanics at Gubkin Russian State University of Oil & Gas. Honorary worker of oil and gas industry, Full Member of the Russian Academy of Natural Sciences. Sphere of academic interests — percolation modeling of transfer processes in porous media and deve-lopment of foundations for improved well productivity technology. Published over 150 works including 4 monographs, 14 textbooks and teaching aids. E-mail: kadetvvl@gubkin.ru
Paul S. CHAGIROV was born in 1988, graduated from Gubkin Russian State University of Oil and Gas (BS) in 2010. He is presently doing his Master’s degree at the Faculty of Development and Exploitation of Oil and Gas Fields at Gubkin Russian State University of Oil and Gas, 10 publications. E-mail: biblioteka@gubkin.ru

Abstract: The percolation flow of Newtonian fluids in porous media was simulated. Flow analysis at the micro level has yielded macroscopic filtration law, as well as the critical values of pressure gradients, which determine the limits of applicability of Darcy's law. The influence of environmental parameters on the values of threshold gradients was studied. It is shown that at high pressure gradients Darcy's law works well in most finely porous reservoirs and does not apply over the whole range of gradients for macroporous rocks, while at low gradients the linear filtration law is only true for macroporous rocks.

Index UDK: 532.546.7

Keywords: newtonian fluid flow in porous media, percolation model, Darcy's law

Bibliography: