کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8125648 1522794 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effects of methane hydrate dissociation at different temperatures on the stability of porous sediments
ترجمه فارسی عنوان
اثر متقابل هیدرات متان در دماهای مختلف بر پایداری رسوبات متخلخل
کلمات کلیدی
تجزیه هیدرات رسوبات هیدراته متان، ثبات، مدل قانونی دانکن-چانگ،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
چکیده انگلیسی
Based on a series of triaxial compression tests on methane hydrate-bearing sediments after a hydrate dissociation time of 0 h, 1 h, 6 h, 12 h, or 24 h, the mechanical properties of the sediments were studied during hydrate dissociation at different temperatures. The results showed that strain softening behavior appeared at higher temperatures in our work. The failure strength and initial yield strength both decreased with an increase in the methane hydrate dissociation time, and the rate of decline of failure strength was faster at higher temperatures. Mathematical expressions for the failure strength and the initial yield strength in terms of the dissociation time and the temperature were also proposed. Moreover, the Duncan-Chang constitutive model of methane hydrate-bearing sediments considering the influence of temperature and hydrate dissociation time was developed, and the validity of most of the calculated results was verified by experiment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Petroleum Science and Engineering - Volume 147, November 2016, Pages 77-86
نویسندگان
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