آنالیز یونی و عکس‌برداری ازاثرگذاری یون سولفات در نسبت‌های مختلف آب تزریقی و تشکیل رسوب و تأثیر آن بر تغییرات ترشوندگی در مخازن کربناته

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه نفت، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران

2 پژوهشکده مهندسی نفت، پردیس پژوهش و توسعه صنایع بالادستی، پژوهشگاه صنعت نفت، تهران، ایران

چکیده

مهمترین چالش در عملیات تزریق آب به مخازن نفتی تشکیل رسوبات معدنی براثر ناسازگاری آب تزریقی و آب سازندی می‌باشد. رسوب گذاری در خلل و فرج و گلوگاه های حفرات سنگ مخزن می تواند موجب کاهش نفوذپذیری و تخلخل سنگ و در نهایت کاهش تولید از مخزن شود.یکی از روش‌های برطرف کردن این مشکل تغییر مهندسی یون‌های موجود در آب تزریقی می‌باشد. در تزریق آب مهندسی شده نوع و غلظت یون‌ها اهمیت ویژه‌ای در افزایش راندمان تولید و ضریب بازیافت نفت دارد. در این مقاله ابتدا براساس آنالیز یونی نمونه‌های واقعی آب سازندی و آب تزریقی در یکی از میادین جنوب غرب ایران، آزمایش‌های سازگاری آب‌ها و اثر تشکیل رسوب بر تغییرات ترشوندگی سنگ مخزن مورد مطالعه و بررسی قرار گرفت. همچنین شبیه‌سازی و انالیز حساسیت بر روی یون‌های موثر وتاثیر آن بر رسوبات استرانسیم سولفات و کلسیم سولفات انجام شد برای شناسایی نوع و سایز و مورفولوژی رسوبات، از آنالیز تصویربرداری به روش میکروسکوپ الکترونی و آنالیز EDX استفاده شد .نتایج آزمایش‌های انجام شده نشان‌ داد، با افزایش یون سولفات با غلظت ppm 4000 در آزمایش سازگاری، وزن رسوبات از mg/L 400 تا mg/L 1400 افزایش می‌یابد که یون سولفات در نسبت 80% آب تزریقی و 20% آب سازندی بیشترین تاثیر را روی آسیب زدن به سنگ مخزن و ایجاد رسوبات استرانسیم سولفات وکلسیم ایفا می‌کند. در آزمایش‌های استاتیک آب‌های اختلاطی به دلیل بررسی بیشتر رسوبات در  بخش‌های مختلف مخزن و همچنین نواوری این پژوهش، رسوبات علاوه بر روی فیلتر در حضور سنگ هم بررسی شد که میزان وزن رسوبات از mg/L 800  تا mg/L 1800 مشاهده شد که نشان‌دهنده جذب سطحی یون‌ها توسط سنگ و ایجاد کربنات کلسیم می‌باشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Ionic Analysis and Photography of the Effect of Sulfate Ion in Different Ratios of Injection Water and Scale Formation and its Effect on Wettability Alteration in Carbonate Reservoirs

نویسندگان [English]

  • Mohammadreza esmailinasab 1
  • Mastaneh Hajipour 1
  • Abbas Shahrabadi 2
  • Mohammad Behnood 1
1 Petroleum Engineering Department, Islamic Azad University, Science and Research Branch, Tehran, Iran
2 Petroleum Engineering Division, Research Institute of Petroleum Industry, Tehran, Iran
چکیده [English]

The most important challenges in water injection operation are mineral precipitation and inorganic scale formation .The formation of mineral scales in the pore throats of the reservoir rock results in reduction of permeability, porosity and production rate from the reservoir. One of the methods to solve this problem is to change the ions concentraion in the injected water. In smart water injection, the type and concentration of ions is particular importance in increasing the production efficiency and the recovery factor. In this article, based on the ion analysis of formation water and injection water samples in one of the oil fields in southwest of Iran, water compatibility test and effect scale formation on wettability alteration were studied experimentally. Moreover, simulation and sensitivity analysis of effective ions on strontium sulfate and calcium sulfate deposits were done. In order to identify the type and morphology of scales, SEM image and EDX analysis were used.  The results of the  water compatibility experiments show that increases in Sulfate ion with 4000 ppm causes the weight of the precipitates increased from 400 mg/L to 1400mg/L that sulfate ion with a ratio of 80 percent of injection water and 20 percent of formation water has the greatest effect on the reservoir damage and formation of strontium sulfate and calcium sulfate deposits. In the static tests of mixed waters, due to more investigation of scales in different parts of the reservoir and also the novelty of this research, scales were also investigated in the presence of rock in different conditions, and the weight of precipitates was observed from 800 mg/L to 1800 mg/L which indicates the surface absorption of ions by the rock and creat calcium carbonate formation.

کلیدواژه‌ها [English]

  • Strontium Scale
  • Calcium Scale
  • wettability alteration
  • formation damage
  • Carbonate reservoirs

مراجع

 
[1]. Montazeri, M., Shahrabadi, A., Nouralishahi, A., Mousavian, S. M., & Hallaj, A. (2018). Investigation of wettability alteration due to smart water injection into carbonate reservoirs by zeta potential and contact angle’s tests, Journal of Petroleum Research, 28(97-4), 29-39, doi:10.22078/pr.2018.2813.2304. ##
[2]. Abbasi, S., Shahrabadi, A., Heshmati, M., & Gharreh Sheikhloo, A. A. (2016). Experimental studies of water injection process into sandstone reservoir rock sample with an emphasis on created fracture effect on formation damage, Journal of Petroleum Research, 24(80), 41-53, doi:10.22078/pr.2016.451. ##
[3]. Shabani, A., Kalantariasl, A., Abbasi, S., Shahrabadi, A., & Aghaei, H. (2019). A coupled geochemical and fluid flow model to simulate permeability decline resulting from scale formation in porous media, Applied Geochemistry, 107, 131-141, doi.org/10.1016/j.apgeochem.2019.06.003. ##
[4]. Li, H., Razavirad, F., Shahrabadi, A., & Binley, A. (2023). Effect of the type and concentration of salt on production efficiency in smart water injection into carbonate oil reservoir rocks, ACS omega, 8(33), 30736-30746, doi.org/10.1021/acsomega.3c04888. ##
[5]. Abbasi, S., Tavakkolian, M., & Shahrabadi, A. (2012). An experimental study of the effect of the water injection process on rock structure and permeability reduction, Petroleum Science and Technology, 30(7), 685-698, doi.org/10.1080/10916466.2010.490808. ##
[6]. Shahrabadi, A., Babakhani Dehkordi, P., Razavirad, F., Noorimotlagh, R., & Nasiri Zarandi, M. (2022). Enhanced oil recovery from a carbonate reservoir during low salinity water flooding: spontaneous imbibition and core-flood methods, Natural Resources Research, 31(5), 2995-3015. ##
[7]. RezaeiDoust, A., Puntervold, T., Strand, S., & Austad, T. (2009). Smart water as wettability modifier in carbonate and sandstone: A discussion of similarities/differences in the chemical mechanisms, Energy & fuels, 23(9), 4479-4485, doi.org/10.1021/ef900185q. ##
[8]. Golghanddashti, H., Saadat, M., Abbasi, S., & Shahrabadi, A. (2012). Experimental investigation of salt precipitation during gas injection into a depleted gas reservoir, In IPTC 2012: International Petroleum Technology Conference, cp-280, European Association of Geoscientists & Engineers, doi.org/10.3997/2214-4609-pdb.280.iptc15179_noPW. ##
[9]. Hamouda, A. A., & Gupta, S. (2017). Enhancing oil recovery from chalk reservoirs by a low-salinity water flooding mechanism and fluid/rock interactions, Energies, 10(4), 576, doi.org/10.3390/en10040576. ##
[10]. Abbasi, S., & Khamehchi, E. (2021). Experimental investigation of competitive mechanisms of precipitation and dissolution due to seawater and low salinity water injection in carbonate reservoirs, Journal of Molecular Liquids, 324, 114767, doi.org/10.1016/j.molliq.2020.114767. ##
[11]. Shabani, A., Jahangiri, H. R., & Shahrabadi, A. (2020). Data-driven approach for evaluation of formation damage during the injection process, Journal of Petroleum Exploration and Production Technology, 10, 699-710. ##
[12]. Roostaie, A., Golghanddashti, H., Abbasi, S., & Shahrabadi, A. (2016). An experimental investigation of different formation waters and injection water incompatibility to obtain the optimum water mixing ratio in injection processes, 63-72. ##
[13]. Ghasemian, J., Riahi, S., Ayatollahi, S., & Mokhtari, R. (2019). Effect of salinity and ion type on formation damage due to inorganic scale deposition and introducing optimum salinity, Journal of Petroleum Science and Engineering, 177, 270-281, doi.org/10.1016/j.petrol.2019.02.019. ##
[14]. Hajirezaie, S., Wu, X., Soltanian, M. R., & Sakha, S. (2019). Numerical simulation of mineral precipitationin hydrocarbon reservoirs and wellbores, Fuel, 238, 462-472, doi.org/10.1016/j.fuel.2018.10.101. ##
[15]. Vazirian, M. M., Charpentier, T. V., de Oliveira Penna, M., & Neville, A. (2016). Surface inorganic scale formation in oil and gas industry: As adhesion and deposition processes, Journal of Petroleum Science and Engineering, 137, 22-32, doi.org/10.1016/j.petrol.2015.11.005. ##
[16] Vazirian, M. M., Charpentier, T. T., Neville, A., Alvim, F. B., & de Oliveira Penna, M. (2016). Assessing surface engineering solutions for oilfield scale; correlating laboratory tests to field trials, In SPE International Oilfield Scale Conference and Exhibition?, SPE-179862, doi.org/10.2118/179862-MS. ##
[17]. Vazirian, M. M., Alvim, F. B., de Oliveira Penna, M., Charpentier, T. V., & Neville, A. (2016). Scale deposition in the oil and gas industry: from a systematic experimental scale study to real-time field data, In Nace Corrosion, NACE-2016, NACE. ##
[18]. Mukkamala, S. B., Anson, C. E., & Powell, A. K. (2006). Modelling calcium carbonate biomineralisation processes. Journal of inorganic biochemistry, 100(5-6), 1128-1138, doi.org/10.1016/j.jinorgbio.2006.02.012. ##
[19]. Balavi, A., Ayatollahi, S., & Mahani, H. (2023). The simultaneous effect of brine salinity and dispersed carbonate particles on asphaltene and emulsion stability, Energy & Fuels, 37(8), 5827-5840, doi.org/10.1021/acs.energyfuels.3c00293. ##
[20]. Shojaati, F., Mousavi, S. H., Riazi, M., Torabi, F., & Osat, M. (2017). Investigating the effect of salinity on the behavior of asphaltene precipitation in the presence of emulsified water. Industrial & Engineering Chemistry Research, 56(48), 14362-14368, doi.org/10.1021/acs.iecr.7b03331. ##
[21]. Gandomkar, A., & Rahimpour, M. R. (2017). The impact of monovalent and divalent ions on wettability alteration in oil/low salinity brine/limestone systems, Journal of Molecular Liquids, 248, 1003-1013, doi.org/10.1016/j.molliq.2017.10.095. ##
[22]. Abbasi, S., Tavakkolian, M., Shahrabadi, A., & Oskui, G. P. (2009). Laboratory investigation on the effect of water injection process on rock structure and permeability reduction, In SPE Kuwait International Petroleum Conference and Exhibition, SPE-126266, doi.org/10.2118/126266-MS. ##
[23]. Wu, M., Xiao, F., Johnson-Paben, R. M., Retterer, S. T., Yin, X., & Neeves, K. B. (2012). Single-and two-phase flow in microfluidic porous media analogs based on Voronoi tessellation, Lab on a Chip, 12(2), 253-261, 26. doi:10.1039/c1lc20838a. ##
[24]. Abbasi, S., & Khamehchi, E. (2021). Experimental investigation of competitive mechanisms of precipitation and dissolution due to seawater and low salinity water injection in carbonate reservoirs, Journal of Molecular Liquids, 324, 114767, doi.org/10.1016/j.molliq.2020.114767. ##
[25]. Kamalipour, M., Dehghani, S. A. M., Naseri, A., & Abbasi, S. (2017). Role of agitation and temperature on calcium sulfate crystallization in water injection process, Journal of Petroleum Science and Engineering, 151, 362-372, doi.org/10.1016/j.petrol.2016.12.039. ##
پژوهش نفت
دوره 33، 1402-5 - شماره پیاپی 132
آذر و دی 1402
صفحه 93-106

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