بررسی و مطالعه آزمایشگاهی کارایی افزایه‌های مختلف کنترل‌کننده هرزروی سیالات حفاری و معرفی یک افزایه جدید دوستدار محیط زیست

نوع مقاله: مقاله پژوهشی

نویسندگان

1 پژوهشکده مهندسی نفت، پردیس توسعه صنایع بالادستی، پژوهشگاه صنعت نفت، تهران، ایران

2 دانشکده مهندسی نفت، دانشگاه امیرکبیر، تهران، ایران

3 دانشکده مهندسی شیمی، دانشگاه امیرکبیر، تهران، ایران

چکیده

در این مقاله با استفاده از یک روش جدید آزمایشگاهی به بررسی کارایی مواد متفاوت کنترل‌کننده هرزروی سیال حفاری در گل بنتونایتی، که بیشترین میزان هرزروی در چاه‌های هیدروکربوری ایران را دار ست، پرداخته شده است. در ابتدا پراکندگی اندازه ذرات هر یک از مواد کنترل هرزروی بر اساس استانداردهای API تعیین گردید. سپس با استفاده از دستگاه تست مواد پل‌زننده، میزان هرزروی گل بنتونایتی برای شکاف‌های متفاوت بررسی گردیده است. از جمله نوآوری‌های این کار می‌توان به استفاده از شکاف‌های عمیق در آزمایش‌ها اشاره کرد که نماین‌گر بهتری از شرایط واقعی درون چاه هستند. این بدین معناست که در صورتی که مواد کنترل هرزروی بتوانند شکاف‌های دستگاه را از درون مسدود کنند، این توانایی را خواهند داشت که در شرایط عملیاتی نیز خاصیت مسدودسازی خوبی جهت کنترل هرزروی ایجاد نمایند. در این پژوهش برای اولین بار از ماده RI-LQ برای کنترل هرزروی بهره گرفته شده است. نتایج این آزمایش‌ها نشان داد که مخلوطی از ماده RI-LQC و Quick Seal به ترتیب با غلظت 20 و lb/bbl 5 و مخلوط RI-LQC و RI-LQF به ترتیب با غلظت 7 و lb/bbl 18 کمترین میزان هرزروی را دارا بوده و در کنترل آن موثر هستند.
 

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Experimental Investigation of the Performance of Different Lost Circulation Materials and Introducing a New Type of Eco-Friendly Lost Circulation Additive

نویسندگان [English]

  • alireza nasiri 1
  • Mohammadjavad Ameri Shahrabi 2
  • Mostafa Keshavarz Moraveji 3
1 Petroleum Engineering Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
2 Department of Petroleum Engineering, Amirkabir University of Technology, Tehran, Iran
3 Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
چکیده [English]

In this paper, a new experimental method is applied, and the capability of different Loss Control Materials (LCMs) in bentonite mud – which has the highest use in Iran’s oil and gas wells – is investigated. At first, particle size distribution of LCMs is calculated based on API standards.  Then, the loss of bentonite mud in different slots is evaluated using Bridging Materials Testing (BMT) apparatus. Usage of three dimensional fractures is one of the most important points of this research, which makes the experiment conditions so similar to the real conditions of well. It should be mentioned that LCMs show their best efficiency only when they can internally block the fractures. Also, in this research, RI-LQ material is for the first time used to control the lost circulation of bentonite mud. The results of these experiments showed that a mixture of RI-LQC and Quick Seal with Concentrations of 20 and 5 pounds per barrel and RI-LQC and RI-LQF mixtures with concentrations of 18 and 7 pounds per barrel have the least amount of loss circulation and are effective in controlling sever losses.
 

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