مطالعه تجربی اثر ترکیبات فعال آب هوشمند در یک مخزن کربناته

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده مهندسی شیمی، نفت و گاز، دانشگاه علم و صنعت، تهران، ایران

2 پردیس توسعه صنایع بالادستی نفت، پژوهشگاه صنعت نفت، تهران، ایران

چکیده

تزریق آب هوشمند به مخزن کربناته همواره با ابهامات فراوانی روبرو بوده است. در این مطالعه با بررسی یکی از عوامل مؤثر نظیر ترکیبات یونی فعال در آب هوشمند این دسته ابهامات بیشتر مورد بررسی و تحلیل قرار گرفته است. واکنش بین سه فاز، نفت، سنگ و آب شور که منجر به تغییر ترشوندگی می‌شود نیازمند وجود ترکیبات یونی فعال در آب هوشمند و ترکیبات فعال در نفت است. وجود این ترکیبات در غلظت‌های مطلوب عامل مؤثر انجام واکنش‌های تبادل یونی و بدنبال آن تغییر در حالت ترشوندگی است. در حقیقت، غلظت بهینه یون‌های فعال منجر به تشکیل یک فیلم آب پایدار و تغییر در ترشوندگی سنگ می‌شود. در این مطالعه، آزمایش‌های اندازه‌گیری زاویه تماس و فرآیند آشام خودبه‌خودی روی نمونه‌هایی از مغزه آهکی انجام شده است. بدین منظور، مغزه‌ها با شرایط یکسان در مجاورت ترکیبات مختلفی از یون‌های فعال در آب هوشمند قرار گرفته‌اند. در این خصوص با استفاده از نتایج گردآوری شده می‌توان نحوه اثرگذاری ترکیبات فعال آب هوشمند و میزان تأثیر آن را تفسیر و بررسی نمود. همچنین، می‌توان نتیجه گرفت که کاتیون‌ها در حضور یون سولفات به اندازه حداقل غلظت موجود در آب دریا می‌توانند عملکرد مثبتی داشته و راندمان قابل قبول و بیشتری نسبت به غلظت‌های چند برابری یون سولفات در آب دریا در شرایط آزمایشگاهی داشته باشند.
 

کلیدواژه‌ها

عنوان مقاله [English]

Experimental Study of the Effect of Smart Water Active Compounds in a Carbonate Reservoir

نویسندگان [English]

  • Samaneh Bovard 1
  • Mohammad Taghi Sadeghi 1
  • Ezatollah Kazemzadehe 2
  • Rohaldin Miri 1
1 School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
2 Center for Exploration and Production Studies and Research, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
چکیده [English]

The process of injecting smart water into carbonate reservoirs has always faced many challenges. In this study, by examining one of the effective factors such as ionic compounds active in smart water, these ambiguities have been further investigated and analyzed. The reaction between three phases, oil, rock and saline, which leads to a change in wettability, requires the presence of ionic compounds active in smart water and active compounds in oil. The presence of these compounds in the desired concentrations is the driving force required to perform ion exchange reactions followed by a change in wettability. In fact, the optimal concentration of active ions leads to the formation of a stable water film and a change in the wettability of the rock. In this study, experiments measuring the contact angle and the spontaneous imbibition deferens process were performed on samples of limestone.  For this purpose, the cores with the same conditions are located in the vicinity of different compounds of active ions in smart water. In this regard, using the collected results, it is possible to interpret and study how to participate in the reaction and the effectiveness of the active compounds of smart water. It can also be concluded that cations in the presence of sulfate ions can have a positive performance at the minimum concentration in seawater and have acceptable efficiencies of about 41% in experimental conditions.
 

کلیدواژه‌ها [English]

  • Smart Water
  • EOR
  • Spontaneous Imbibition
  • Ion Components
  • Smart Water Flooding

مراجع

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پژوهش نفت
دوره 32، 1401-1 - شماره پیاپی 122
فروردین و اردیبهشت 1401
صفحه 51-63

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