کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8128142 1522990 2018 50 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Introducing optimized validated meshing system for wellbore stability analysis using 3D finite element method
ترجمه فارسی عنوان
معرفی سیستم بهینه سازی اعتبار سنجی برای تجزیه و تحلیل پایداری چاه با استفاده از روش عدسی محدود عددی
کلمات کلیدی
المان محدود، ثبات چاه، بهینه سازی مش، فرایند حفاری، وزن گندم، شکست سنگ
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
After studying different model sizes, mesh densities, element types, and boundary conditions, a cylindrical model consist of a combination of regular and irregular hexahedral elements for far-field region, and fine-grained tetrahedral elements for near-wellbore region was obtained. Two different approaches were selected for FEM modeling, in the first approach a pre-drilled well was considered in the model, and in the second approach the model geometry before drilling without a pre-drilled well was subjected to an initial state of stress, removal of the elements, and loading which simulate the drilling process using a certain mud weight. The results of simulating the state of strains around the wellbore using this meshing system in both FEM approaches had acceptable adoption with drilling data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Natural Gas Science and Engineering - Volume 53, May 2018, Pages 74-82
نویسندگان
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