کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5485030 1522998 2017 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Direct estimation of the fluid properties and brittleness via elastic impedance inversion for predicting sweet spots and the fracturing area in the unconventional reservoir
ترجمه فارسی عنوان
برآورد مستقیم خواص مایع و تراستی با استفاده از معکوس امپدانس الاستیک برای پیش بینی لکه های شیرین و ناحیه شکستگی در مخزن غیر متعارف
کلمات کلیدی
مخزن غیر متعارف، شناسایی سیال، ارزیابی شایستگی، لرزه نگاری قبل از پشته، پیش بینی لکه های شیرین، بهینه سازی منطقه شکستن،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
Fluid identification and the level of brittleness estimated from seismic data play an extremely important role in unconventional reservoir characterization and development. Based on the theory of porous media and the AVO theory, a new elastic impedance equation is derived that includes the effective pore-fluid modulus as the fluid indicator and the product of the Young's modulus and density as the brittleness estimation factor. By comparing the accuracy of different models, the new elastic impedance equation is verified to meet the requirements of small and medium angles of incidence. Next, an elastic impedance inversion method based on a Bayesian framework is established that directly extracts the fluid identification information and the brittleness evaluation information, avoids the cumulative error of the indirect method, and improves the accuracy of the calculation results. Based on a model test, the direct estimation method is found to make full use of the strong anti-noise ability and practicability of the elastic impedance inversion; in addition, the application of real data demonstrates that the proposed inversion method has high accuracy and strong reliability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Natural Gas Science and Engineering - Volume 45, September 2017, Pages 415-427
نویسندگان
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