نتایج جستجو برای: oil and gas field

تعداد نتایج: 17015494  

Journal: :مطالعات حقوق خصوصی 0
بهروز اخلاقی دانشیار گروه حقوق خصوصی دانشکدۀ حقوق و علوم سیاسی دانشگاه تهران اسدالله صحرانورد دکتری حقوق خصوصی دانشکدۀ حقوق و علوم سیاسی دانشگاه تهران

iranian oil buy back contract is a kind of service contract that foreign party carries out all operations in development or reconstruction of oil or gas field with its costs. in return, national iranian oil company obliges to compensate contractor all capital or non-capital costs necesserly by produced oil or gas from the same field. the energy charter treaty as the most perfect international t...

Journal: :شیمی و مهندسی شیمی ایران 0

since the pressure of hydrocarbon reservoirs drops due to production, in order to keep the production rate constant or increase enhanced recovery, few methods are used. one of which is gas injection to the reservoir. on the other hand, due to reduction in oil production potential of aghajari oil field, gas injection is highly required to pressurize and enhance oil recovery. there is a possibili...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم انسانی 1393

this research study aimed to investigate the relationship between field-dependence/independence cognitive style and vocabulary learning strategies among iranian efl learners. ninety participants majoring in english translation at arak university were chosen. the participants were classified into two groups of field-dependent and independent based on the results of group embedded figure test (ge...

Journal: :مطالعات حقوق خصوصی 0
سید نصرالله ابراهیمی استادیار گروه حقوق خصوصی دانشکدۀ حقوق و علوم سیاسی دانشگاه تهران مونا آقاسیدجعفرکشفی دانشجوی دکترای حقوق نفت و گاز دانشکده حقوق و علوم سیاسی دانشگاه تهران

as observed in some oil and gas countries, upstream service contracts, for instance buy-back contract in iran, would provide an appropriate environment for the development of oil and gas fields. however, certain cases, such as common structures and reservoirs, deep sea oil fields or second and third generations of an oil field may require more attractive contractual mechanisms in the eyes of io...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی 1391

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک 1389

this study investigates the relationship between field-related cognitive styles and global reading comprehension of hypertext. technically, field dependency is prevailing dominance of field on perception of parts, while global comprehension is skim-like reading to grasp the general content. in this research project, 60 senior and junior students of arak university majoring in english literature...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

در حالت کلی معادلات حاکم بر یک مدل ریاضی از مخزن را نمی توان بوسیله روشهای تحلیلی حل کرد، در حالیکه یک مدل عددی می تواند بوسیله کامپیوتر جوابی تقریبی ارائه دهد. در این پایان نامه، یک دستگاه معادلات دیفرانسیل معمولی توسط گسسته-سازی معادله حاکم بر جریان شعاعی تک فازی نفت بسمت یک چاه (معادله چاه آزمایی) به دست آمده است. این سیستم شامل محاسبه تابع ماتریسی (exp(ka است که در آن k گام زمانی و a ماتریس...

Journal: :مهندسی معدن 0
علی کردوانی دانشگاه تهران فریدون سحابی دالنشگاه تهران حسین معماریان دانشگاه تهران

physical and chemical properties of  crude oil, including viscosity and api gravity, are commonly inherited  from the  early organic matter, environmental conditions in which they were deposited and depth of burial of the source beds. api gravity increases in deeper burial due to higher thermal maturation of organic matter in the source rocks and consequently, generation of lighter saturated hy...

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