ساخت محفظه تحت فشار به منظور شبیه‌سازی شرایط ته چاهی جهت تابش لیزر

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دپارتمان مهندسی نفت، واحد پردیس بین الملل کیش، دانشگاه تهران، کیش، ایران

2 دپارتمان مهندسی نفت، واحد پردیس بین الملل کیش، دانشگاه تهران، کیش، ایران/ انستیتو مهندسی نفت، دانشکده مهندسی شیمی، دانشکدگان فنی دانشگاه تهران، ایران

چکیده

امروزه یکی از روش‌های قابل قبولی که نظر بسیاری از مهندسین را در زمینه تکنولوژی‌های جدید حفاری به خود جلب کرده است، حفاری چاه‌های نفت و گاز با استفاده از تکنولوژی لیزر می‌باشد که دارای مزایای بسیاری نسبت به روش‌‎های قدیمی حفاری می‌باشد. هر چند آزمایش‌های متعددی در این زمینه صورت گرفته است. از این رو شبیه‌سازی شرایط آزمایشگاهی ته چاهی برای چنین عملیات پیچیده‌ای همچون روشهای متداول دیگر امری ضروری به‌نظر می‌رسد که به‌وسیله آن قادر به ایجاد طرح و برنامه مهندسی جامع و دقیقی بمنظور انجام عملیات مذکور در مقیاس میدانی باشیم. ساخت محفظه تحت فشار آزمایشگاهی جهت شبیه‌سازی عملیات حفاری با کمک لیزر توانست قدمی بزرگ در راستای تکمیل و توسعه هرچه سریعتر این تکنولوژی به‌منظور تسهیل در امر پیچیده حفاری باشد. در مقاله حاضر با استفاده از محفظه مذکور بررسی نتایج بر روی نمونه‌های سنگ کربناته مورد نقد و بررسی قرار گرفت تا اثر تابش لیزر در شرایط ته چاهی بر روی این نمونه از سنگ مورد بررسی قرار‌گیرد. از این رو نمونه‌های سنگ داخل محفظه تحت فشار، تحت تابش لیزر قرار‌گرفته تا میزان تغییرات پارامترهایی نظیر دما، فشار، مدت زمان تابش مورد مطالعه و بررسی قرار گیرد. نهایتاً با بررسی تغییرات ایجاد شده در سنگ و شیشه حین و پس از تابش لیزر از منظر مکانیکی نیز مورد بررسی قرار گرفت. شایان ذکر است افزایش زمان تابش به میزان s 5 نسبت به حالت بدون فشار و نیز افزایش C° 24 در پارامتر دما داخل محفظه و نیز psi 10 افزایش در فشار داخل محفظه از جمله نتایج حاصله از این آزمایش بوده است. از سویی دیگر با انجام آزمایشات مکانیک سنگی کاهش چشمگیر مدول های فشاری در قبل و بعد از تابش لیزر به وقوع پیوسته بود
 

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Construction of Pressurized Chamber to Simulate the Bottom Hole Condition for Laser Radiation

نویسندگان [English]

  • Ali Forouzandeh 1
  • Siavash Riahi 2
  • Ali Nakhaee 2
1 Department of Petroleum Engineering, Kish International Campus, University of Tehran, Kish, Iran
2 Department of Petroleum Engineering, Kish International Campus, University of Tehran, Kish, Iran\Institute of Petroleum Engineering, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
چکیده [English]

Today, one of the acceptable methods that has attracted the opinion of many engineers in the field of new drilling technologies is the drilling of oil and gas wells using laser technology, which has many advantages over old drilling methods. Although this type of drilling has not been done operationally. Therefore, the simulation of laboratory conditions at the bottom hole for such complex operations, like other common methods, seemed to be necessary which we will be able to create a comprehensive and accurate engineering plan and program in order to perform the mentioned operations on a field scale. The construction of laboratory pressure chamber to simulate drilling operations with the help of laser could be a big step in the direction of completing and developing this technology as quickly as possible. In the present article, the results of carbonate rock samples were evaluated using the aforementioned chamber in order to investigate the effect of laser radiation on this rock sample in bottom-hole conditions. Therefore, the stone samples inside the chamber under pressure are subjected to laser radiation to study and investigate the amount of changes in parameters such as temperature, pressure, radiation time and even the effect of thermal stress on the window designed and under pressure. Finally, it was examined the changes made in stone and glass during and after laser irradiation. It is worth mentioning that the radiation time increased by 5 seconds compared to the no-pressure state, as well as an increase in 24 degrees Celsius in the temperature parameter inside the chamber, as well as a 10 psi increase in the pressure inside the chamber, among the results of this test. On the other hand, by conducting rock mechanics tests, a significant decrease in compressive modulus before and after laser irradiation on the rock sample was happened.

کلیدواژه‌ها [English]

  • Laser Assisted Drilling
  • Fracture Propagation
  • Thermal Tension
  • Rock Mechanical Properties

مراجع

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پژوهش نفت
دوره 33، 1402-6 - شماره پیاپی 133
بهمن و اسفند 1402
صفحه 74-84

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