بررسی آزمایشگاهی تشکیل رسوب سولفات استرانسیم در سیستم‌های تزریق مخلوط آب دریا و آب تولیدی مخزن در یکی از مخازن کربناته و مطابقت آن با مدل ژاکس

نوع مقاله: مقاله پژوهشی

نویسندگان

پژوهشکده ازدیاد برداشت از مخازن نفت و گاز، تهران، ایران

چکیده

هر گاه در میادین نفتی دریایی از مخلوط آب دریا و آب تولیدی برای فشارافزایی مخزن و یا افزایش ضریب بازیافت نفت استفاده می‏شود، تمهیدات لازم برای کنترل تشکیل رسوب‏های معدنی نیز باید در نظر گرفته شود. در صورت ناسازگاری بین آب تزریقی و آب تولیدی، مشکلاتی مانند تخریب سازند و گرفتگی لوله‏های مغزی چاه‏ها و خطوط انتقال اجتناب‏ناپذیر خواهند بود. در این تحقیق تشکیل رسوب سولفات استرانسیم در مخلوط آب تولیدی چاه و آب دریا به نسبت‏های مختلف در شرایط دمایی یکی از مخزن های جنوب کشور بررسی شده است. نتایج نشان میدهد که هر چه نسبت آب تولیدی به آب دریا بیش‏تر باشد، تشکیل رسوب شدت می‏یابد. در شرایط اختلاط 60 درصد آب دریا و 40 درصد آب تولیدی، تشکیل سولفات استرانسیم حداکثر است. محاسبات حاصل از مدل ژاکس برای پیش‏بینی مقدار و نوع رسوب تطابق خوبی با نتایج گزارش‏شده میدانی نشان می‏دهد. مقدار رسوب در فرآیند تزریق آب تابعی از نسبت اختلاط آب‏هاست
 

کلیدواژه‌ها


عنوان مقاله [English]

Experimental Studies on Strontium Sulfate Formation for Reservoir Injection Systems using Mixture of Seawater / Produced water in one of Carbonate Reservoirs and its Conformance the Jacques Model

نویسندگان [English]

  • Habib Gholamianpour
  • Emad Roayaei
  • Mohammad Ali Emadi
IOR Research Institute, Tehran, Iran
چکیده [English]

In off-shore fields, whenever a mixture of sea water and produced water is used for reservoir pressure maintenance and, or recovery factor improvement, necessary precaution should be considered for the control of mineral scale formation. Incompatibility between sea water and produced water causes serious problems; such as, formation damage as well as flow restriction in producing wellbore and pipelines. In this project, experimental studies have been carried out as to investigate strontium sulfate scale due to the mixtures sea water and produced water under the temperature reservoir. Results have been shown  when the ratio of produced water to sea water is increased, strontium sulfate formation intensifies. With the mixture of %60 sea water and %40 produced water, scale Formation is Maximum. Furthermore, experimental results have had reasonable match with the Jacques model.
 

کلیدواژه‌ها [English]

  • Incompatibility
  • Formation Damage
  • Water Injection
  • Strontium Sulfate
  • Jacques Model

[1]. Yuan M. D. and Todd A. C., “Prediction of sulfates scaling tendency oilfield operation,” SPE 18484, 6, pp. 61-63, 1991.##

[2]. Thomsen K., Stenby. E. H., “Prediction of mineral scale formation in geothermal and oilfield operation using the extended UNIQUAC model part II: carbonate scaling minerals,” Geothermics, 35, p.239, 2006.##

[3]. Shixiang L., “Scaling mechanism and prevention of water injection system in mawangmiao oilfield,” Journal of Jianghan Petroleum University of Staff and Workers, 2005-6.##

[4]. Mackay E. J. and Jordan M. M., “Impact of brine flow and mixing in the reservoir on scale control risk assessment and subsurface treatment options: case histories,” Journal of Energy Resources Technology, Vol. 127, pp. 201, 2005.##

[5]. Jordan M. M., Kemp S., Sorhaug E., Sjursaether K. and Freer. B., “Effective management of scaling from and within carbonate oil reservoirs, North Sea Basin,” Trans. IChemE, Vol. 81, Part A, 2003.##

[6]. Wieclaw D., Rabbani A. R. and Kotarba M. J., “Origin of oils accumulated in mesozoic-cenozoic reservoirs of the Iranian sector of the Persian Gulf,” London 2013-75th EAGE Conference & Exhibition incorporating SPEEUROPEC, 2013.##

[7]. Sheikholeslami R. and Ong H. W. K. , “Kinetics and thermodynamics of calcium carbonate and calcium sulfate at salinities up to 1.5 M, Desalination,” 157., p. 217, Aug. 2003## 

[8]. Merdhah A. B. and Yassin A. M., “Formation damage due to scale formation in porous media resulting water injection System,” 14, 2008.##

[9]. Mackay E. J., Jordan M. M. and Torabi. F., “Predicting brine mixing deep within the reservoir and its impact on scale control in marginal and deepwater developments,” SPE Paper 85104, No. 3, pp. 210-220, 2003.##

[10]. Mohd Yassin A. A., “Solubility of common oil field scales of injection water and high–barium concentration and high–salinity formation water,” Journal Teknologi, Vol. 50, pp. 67-77, 2012.##

[11]. Mohd Yassin A. A., “Low-sulfate seawater injection into oil reservoir to avoid scaling problem,” Journal of Applied Sciences ,No. 7, pp. 1169-11788, 2008.##

[12]. Mohd Yassin A. A., “Scale formation in oil reservoir during water injection at high-salinity formation water,” Journal of Applied Sciences, Vol. 7, No. 21, pp. 3198-3207, 2007.##

[13]. Vetter O. J., Farone W. A., Veith E. and Lankford. S., “Calcium carbonate scale considerations: a practical approach,” Engineers Paper SPE 17009, presented at The International 16-17 Symposium, 1987.##

[14]. Safari H., “Prediction of the aqueous solubility of BaSO4 using pitzer ion interaction model and LSSVM Algorithm,” Fluid Phase Equilibria, 374, pp 48-62, 2014.##

[15]. Safari H., “Predicting the solubility of SrSO4 in Na–Ca–Mg–Sr–Cl–SO4–H2O system at elevated temperatures and pressures,” Fluid Phase Equilibria, Vol. 374, No. 86-101, 2014.##

[16]. Moghadasi J., Jamialahmadi M., Muller-Steinhagen H. and Izadpanah M. R., “Formation damage in Iranian oil fields,” SPE 73781, February, 2002.##

[17]. Liu X., Jungang L., Qianya Z., Jinlai F. and Yingli L., “The analysis and prediction of scale accumulation for water-injection pipelines in the daqing oilfield,” Journal of Petroleum Science and Engineering, Vol. 66, Issues 3–4, pp. 161–164, June 2009.##

[18]. Binmerdhah A. B., Yassin A. A. M. and Muherei. M. A., “Laboratory and prediction of barium sulfate scaling at high-barium formation water,” Journal of Petroleum Science and Engineering, Vol. 70, Issues 1–2, pp. 79–88Jan. 2010.##

 [19]. Bin Merdhah A. “Inhibition of calcium sulfate and strontium sulfate scale in waterflood,” SPE Production & Operations, Vol. 25.  Issue 4, pp. 545-552, 2010.##

[20]. Taheri A. and Zahedzadeh M., “Simulation and experimental studies of mineral scale formation effects on performance of sirri-C oil field under water injection,” Iran. J. Chem. Chem. Eng, Vol. 30, pp. 10, 2011.##

[21]. Moghadasi J., Jamialahmadi M. and Muller-Steinhagen H., “Scale formation in oil reservoir and production equipment during water injection,” SPE 82233, SPE European Formation Damage Conference, 2003.##

[22]. Jordan M. M., Collins R. I. and Mackay. J. E., “Low-sulfate seawater injection for barium sulfate scale control: a life-of-field solution to a complex challenge,” SPE 98096, pp. 15-17, Feb, 2006.##

[23]. Zettlitzer M. and Busch M., “Produced water cleaning and re-injection experience- zero discharge to water,” 4th International Conference on Produced Water Management, January 2007.##

[24]. Jacques D. F. and Bourland. B. I., “A study of solubility of strontium sulfate,” Society of Petroleum Engineers Journal, Vol. 23., Issue 02, pp. 292-300, Apr. 1983.##

[25]. Jordan M. M. and Mackay J. E., “Integrated field development for effective scale control throughout the water cycle in deep water subsea fields,” The SPE Europec /EAGE Annual Conference, SPE 94052, No. 1-9, pp. 13-16 June, 2005.##

[26]. Collins R. I. and Jordan M. M., “Occurrence, prediction and prevention of Zinc Sulfide scale within Gulf coast and North Sea high-temperature and high-salinity felds,” SPE Production and Facilities, pp. 200-209, August 2003.##

[27]. Jacques D. F. and Gollberg J. B., “Strontium sulfate solubility and the effects of scale inhibitors,” paper Presented at The NACE Middle East Corrosion Conference 79 Bahrain, April 15-17,1979.##