مقاله انگلیسی مکانیک سنگ و پایداری چاه های شیل عمیق در حین فرآیند حفاری
ترجمه نشده

مقاله انگلیسی مکانیک سنگ و پایداری چاه های شیل عمیق در حین فرآیند حفاری

عنوان فارسی مقاله: مکانیک سنگ و پایداری چاه های شیل عمیق در حین فرآیند حفاری و تکمیل
عنوان انگلیسی مقاله: Rock mechanics and wellbore stability of deep shale during drilling and completion processes
مجله/کنفرانس: مجله علوم و مهندسی نفت - Journal of Petroleum Science and Engineering
رشته های تحصیلی مرتبط: مهندسی معدن
گرایش های تحصیلی مرتبط: مکانیک سنگ
کلمات کلیدی فارسی: شیل عمیق، ثبات چاه، حفاری و تکمیل، میدان نشت، میدان فشار، فروپاشی فشار
کلمات کلیدی انگلیسی: Deep shale - Wellbore stability - Drilling and completion - Seepage field - Stress field - Collapse pressure
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus - Master Journals List - JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.petrol.2021.108882
دانشگاه: Department of Security and Fire Protection, Southwest Petroleum University, Sichuan, China
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2021
ایمپکت فاکتور: 4.346 درسال 2020
شاخص H_index: 111 درسال 2020
شاخص SJR: 0.975 درسال 2020
شناسه ISSN: 0920-4105
شاخص Quartile (چارک): Q1 درسال 2020
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 13
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
آیا این مقاله فرضیه دارد: ندارد
کد محصول: E15561
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست مطالب (انگلیسی)

Highlights
Abstract
Keywords
Introduction
Materials
Experimental methods and results
Theory and calculation
Conclusions
Credit author statement
Declaration of competing interest
References

بخشی از مقاله (انگلیسی)

ABSTRACT
The seepage coupling effect between the borehole rock mass and borehole fluid and the effective stress field distribution around the wellbore are obviously different under different working conditions of drilling, fracturing and completion, which affect the stability of horizontal borehole of shale gas reservoir. The physical, chemical, and mechanical properties of the shale in Longmaxi formations in a block of China immersed with different working fluids were tested experimentally. Combined with the experimental data, a theoretical model was established to evaluate and analyze the wellbore stability of Longmaxi formations shale under different working conditions of drilling, fracturing and completion. The results show that the shale of the Longmaxi Formation is a typical hard and brittle shale, the bedrock is dense, with high mechanical strength and weak hydration and expansion ability. The immersion effect of different working fluids has little influence on the expansion and mechanical properties of shale bedrock. However, the mechanical strength of shale with relatively developed bedding fractures is low, and the immersion effect of different drilling fluid further weakens the mechanical strength, resulting in obvious anisotropy of mechanical strength of underground rock. The coupling effect of seepage between wellbore and formation has obvious influence on the dynamic distribution of borehole pore pressure and wellbore stability under different working conditions. The effective fluid column pressure at the bottom of the hole is the highest during the fracturing process, which leads to the increase of pore pressure near the wellbore, and then to the increase of collapse pressure around the borehole wall. The equivalent density of collapse pressure rises to the maximum of 1.93 g/cm3 , and the wellbore stability is the worst in the fracturing process. The wellbore stability is secondary in the drilling process, and the wellbore stability is good when drilling along the direction of the maximum horizontal principal stress, and the equivalent density of collapse pressure is 1.69 g/cm3 . During the completion process, the formation fluid flows into the wellbore, the pore pressure in the borehole is relieved, and the equivalent density of the collapse pressure is reduced to approximately 1.35 g/cm3 , the wellbore stability is the best and open hole completion can be attempted in the horizontal well section. The results provide a certain theoretical reference for the selection of the drilling and completion schemes in shale formation. 

دیدگاه خود را بنویسید:

تاکنون دیدگاهی برای این نوشته ارسال نشده است