A Study on Mechanism of EOR by Ion Matching Water Injection

doi:10.11885/j.issn.1674-5086.2022.03.09.02

Abstract

Abstract: Water flooding is the main technology of oilfield development, with conventional mechanism of supplementing energy to the formation. However, ion matching water injection technology enhance the oil recovery through reservoir oil-water-rock interaction. Taking advantage of strong solid-liquid micro interface in the reservoir media, injection with ion matched water could improve oil displacement efficiency by matching the type and strength of ions in injected water with that in reservoir to peel off the residual oil film. Taking Xifeng Oilfield as an example, laboratory core flooding experiment, Zeta-potential measurements, Atomic force microscopy(AFM) force-distance measurement and direct numerical simulation of interfacial force are used to analyze the influencing factors of disjoining pressure as well as Zeta-potential at the oil-brine-rock interfaces, so as to explain the EOR mechanism of ions tuning water(ITW) flooding from microscale. Core flooding experiments show that both in secondary and tertiary modes, ITW can enhance oil recovery by 15.6 and 9.8 percentage point compared with coventional water flooding; Zeta-potential and AFM force-distance measurements show that Zeta-potential and disjoining pressure are influenced by the concentration and ionic type of the brine, which determine the detachment of the residual oil from rock. At the same ion concentration, the results of numerical calculation and atomic force microscopy analysis show that the disjoining pressure of Na⁺ is higher than that of Ca²⁺ and Mg²⁺, which shows the stronger ability to peel oil film from rock surface. Moreover, with the decrease of ion concentration of injected water, the negative value of Zeta-potential and disjoining pressure at the interface of brine-crude oil-rock are increasing, and the repulsion force between oil and rock is increasing, which makes the residual oil easier to peel off from the rock. ITW is helpful to improve the development effect of water flooding reservoir.

Key words: ions tuning waterflooding, EOR, Zeta-potential, atomic force microscopy, disjoining pressure

CLC Number:

TE38

XU Shijing, WU Jiazhong, CHEN Xinglong, LIU Qingjie. A Study on Mechanism of EOR by Ion Matching Water Injection[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(5): 105-112.

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References

[1] TANG G Q, MORROW N R. Effect of temperature, salinity and oil composition on wetting behavior and oil recovery by waterflooding[J]. Oil Field, 1996, 12: 45-60.
[2] HUANG Changwu. Top 10 scientific and technological developments in petroleum in 2014[J]. Petroleum Exploration and Development, 2015, 42(5): 1. 黄昌武. 2014年石油十大科技进展[J]. 石油勘探与开发, 2015, 42(5): 1.
[3] WEBB K J, BLACK C, AL-AJEEL H. Low salinity oil recovery — log-inject-log[C]. SPE 81460-MS, 2003. doi: 10.2118/81460MS
[4] MCGUIRE P L, CHATHAM J R, PASKVAN F K, et al. Low salinity oil recovery: An exciting new EOR opportunity for Alaska's North Slope[C]. SPE 93903-MS 2005. doi: 10.2118/93903MS
[5] SECCOMBE J, LAGER A, JERAULD G, et al. Demonstration of low-salinity EOR at interwell scale, Endicott Field, Alaska[C]. SPE 129692-MS, 2010. doi: 10.2118/129692MS
[6] SECCOMBE J C, LAGER A, WEBB K J, et al. Improving wateflood recovery: Losaltm EOR field evaluation[C]. SPE 113480-MS, 2008. doi: 10.2118/113480MS
[7] VLEDDER P, GONZALEZ I, FONSECA J C, et al. Low salinity water flooding: proof of wettability alteration on a field wide scale[C]. SPE 129564-MS, 2010. doi: 10.2118/129564MS
[8] AKHMETGAREEV V, KHISAMOV R. 40 years of low-salinity waterflooding in Pervomaiskoye Field, Russia: Incremental oil[C]. SPE 174182-MS, 2015. doi: 10.2118/174182MS
[9] ZHANG Chengming, QI Meng, YANG Yumei, et al. Study on reservoir adaptability analysis and oil displacement effect evaluation of ion water flooding technology[J]. Applied Energy Technology, 2019(2): 11-14. doi: 10.3969/j.issn.10093230.2019.02.004 张成明, 齐梦, 杨玉梅, 等. 离子水驱技术油藏适应性分析及驱油效果评价研究[J]. 应用能源技术, 2019(2): 11-14. doi: 10.3969/j.issn.10093230.2019.02.004
[10] FOGDEN A, KUMAR M, MORROW N R, et al. Mobilization of fine particles during flooding of sandstones and possible relations to enhanced oil recovery[J]. Energy | Fuels, 2011, 25(4): 237-242. doi: 10.1021/ef101572n
[11] TANG G Q, MORROW N R. Influence of brine composition and fines migration on crude oil/brine/rock interactions and oil recovery[J]. Journal of Petroleum Science | Engineering, 1999, 24(2): 99-111. doi: 10.1016/S09204105(99)000340
[12] AUSTAD T, REZAEIDOUST A, PUNTERVOLD T. Chemical mechanism of low salinity water flooding in sandstone reservoirs[C]. SPE 129767-MS, 2010. doi: 10.2118/129767MS
[13] LAGER A, WEBB K J, BLACK C J J, et al. Low salinity oil recovery — An experimental investigation[J]. Petrophysics, 2008, 49(1): 28-35. doi: 10.1007/s1218200800144
[14] LIGTHELM DJ, GRONSVELD J, HOFMAN J, et al. Novel waterflooding strategy by manipulation of injection brine composition[C]. SPE 119835-MS, 2009. doi: 10.2118/119835MS
[15] LEE S, WEBB K, COLLINS I, et al. Low salinity oil recovery: Increasing understanding of the underlying mechanisms[C]. SPE 129722-MS, 2010. doi: 10.2118/129722MS
[16] VIJAPURAPU C S, RAO D N, KUN L. The effect of rock surface characteristics on reservoir wettability[C]. SPE 75211-MS, 2002. doi: 10.2523/75211MS
[17] BUCKLEY, JILL S. Mechanisms and consequences of wettability alteration by crude oils[D]. Edinburg: Heriot-Watt University, 1996.
[18] KASHIRI R, KALANTARIASL A, PARSAEI R, et al. Experimental study of the effect of clay and oil polarity on oil recovery by low salinity water flooding using glass micromodel[J]. Natural Resources Research, 2021, 30(5): 3695-3716. doi: 10.1007/S11053021098777
[19] MYINT P C, FIROOZABADI A. Thin liquid films in improved oil recovery from low-salinity brine[J]. Current Opinion in Colloid | Interface Science, 2015, 20(2): 105-114. doi: 10.1016/j.cocis.2015.03.002
[20] XIE Quan, LIU Yuzhang, WU Jiazhong, et al. Ions tuning water flooding experiments and interpretation by thermodynamics of wettability[J]. Journal of Petroleum Science | Engineering, 2014, 124: 350-358. doi: 10.1016/j.petrol.2014.07.015
[21] DAI Jinyou, LI Jianting, REN Qianying, et al. Microscopic characteristics of Chang 8 low permeability tight reservoir in Xifeng Oilfield[J]. Science Technology and Engineering, 2019, 19(16): 118-125. doi: 10.3969/j.issn.1671-1815.2019.16.017 代金友, 李建霆, 任茜莹, 等. 西峰油田长8低渗致密储层微观特征[J]. 科学技术与工程, 2019, 19(16): 118-125. doi: 10.3969/j.issn.1671-1815.2019.16.017
[22] MATTHIESEN J, BOVET N, HILNER E, et al. How naturally adsorbed material on minerals affects low salinity enhanced oil recovery[J]. Energy | Fuels, 2014, 28(8): 4849-4858. doi: 10.1021/ef500218x
[23] SCHEMBRE J M. Temperature, surface forces, wettability and their relationship to relative permeability of porous media[D]. Stanford: Stanford University, 2004.
[24] TAKAHASHI S. Water imbibition, electrical surface forces, and wettability of low permeability fractured porous media[D]. Stanford: Stanford University, 2009.
[25] WANG Xiao, LIU Wanfa, SHI Leiting, et al. A comprehensive insight on the impact of individual ions on engineered waterflood: With already strongly water-wet sandstone[J]. Journal of Petroleum Science and Engineering, 2021, 207: 109153. doi: 10.1016/J.PETROL.2021.109153
[26] ZENG Lingping, LU Yunhu, AL Maskari N S, et al. Interpreting micromechanics of fluid-shale interactions with geochemical modelling and disjoining pressure: Implications for calcite-rich and quartz-rich shales[J]. Journal of Molecular Liquids, 2020, 319: 114117. doi: 10.1016/j.molliq.2020.114117
[27] HIRASAKI G. Wettability: Fundamentals and surface forces[C]. SPE 17367-PA, 1991. doi: 10.2118/17367PA
[28] TAKAHASHI S, KOVSCEK A R. Wettability estimation of low-permeability, siliceous shale using surface forces[J]. Journal of Petroleum Science and Engineering, 2010, 75(1): 33-43. doi: 10.1016/j.petrol.2010.10.008
[29] AMIRI S, GANDOMKAR A. Influence of electrical surface charges on thermodynamics of wettability during low salinity water flooding on limestone reservoirs[J]. Journal of Molecular Liquids, 2019, 277: 132-141. doi: 10.1016/j.molliq.2018.12.069
[30] YU Danfeng, YANG Hui, WANG Hui, et al. Interactions between colloidal particles in the presence of an ultrahighly charged amphiphilic polyelectrolyte[J]. Langmuir, 2014, 30(48): 14512-14521. doi: 10.1021/la503033k
[31] ALSHAKHS M J, KOVSCEK A R. Understanding the role of brine ionic composition on oil recovery by assessment of wettability from colloidal forces[J]. Advances in Colloid and Interface Science, 2016, 233: 126-138. doi:10.1016/j.cis.2015.08.004