کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4743465 1641807 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Estimation of permeability of sedimentary rocks by applying water-expulsion porosimetry to Katz and Thompson model
ترجمه فارسی عنوان
برآورد نفوذپذیری سنگ های رسوبی با استفاده از روش پودر سنجی آب خروجی به مدل کاتز و تامپسون
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی


• The size distribution and porosity of pores serving as flow paths were measured.
• These data are suitable for applying to the model of predicting permeability.
• Our result enhances knowledge of modeling single/multi-phase flow in rock.

The pore-size distribution of a rock is one of the important factors controlling permeability. The Katz and Thompson model (KT model) can predict permeability using only pore-size distribution and porosity. Previous studies have conventionally used those of open pores measured by mercury intrusion porosimetry. However, open pores usually include pores unavailable for flow such as dead ends and dents. In contrast, water-expulsion porosimetry (WEP) yields information of transport pores directly serving as flow paths. The size distributions and porosities of transport pores of twelve sedimentary rocks were measured by WEP, and the permeabilities calculated by the KT model were compared with those measured using a gas permeameter. Permeabilities are shown to be better calculated by using transport porosity rather than by open porosity. Application to estimating the permeability–saturation degree relation by combining WEP, the KT model, and a relative permeability model is also discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 177, 22 July 2014, Pages 75–82
نویسندگان
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