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Gravity Drainage and Capillary Imbibition in Iranian Fractured Carbonate Reservoirs
, Ph.D. Dissertation Sharif University of Technology ; Goodarznia, Iraj (Supervisor) ; Esmaeilzadeh, Fereidoon (Supervisor) ; kharrat, Riaz (Supervisor)
Abstract
Gravity Drainage and Capillary Imbibition are among the most important mechanisms in oil production from carbonate fractured reservoirs. In order to investigate the feasibility and effects of these mechanisms in oil recovery from carbonate cores, some different experiments were carried out at Sharif University Laboratories. Carbonate cores were taken away from the well-known Asmari outcrop, Asmari Mountain in south east of M.I.S. city and used in these experiments. Oil and gas samples were collected from field separators and recombined to reservoir composition. The Gas-Oil ratio was adjusted to obtain the reservoir fluid properties. A core flooding apparatus with various capabilities was...
Analysis and Design of Frequency Comb and Frequency Converter using Rotating Time-Periodic Metasurface
, M.Sc. Thesis Sharif University of Technology ; Rejaei, Behzad (Supervisor) ; Memarian, Mohammad (Supervisor)
Abstract
Time-varying electromagnetic structures have provided the possibility of realizing new phenomena and, as a result, new applications, which include non-reciprocity, frequency conversion, amplification, and frequency comb. Among the researches that have been done on time-varying electromagnetic structures, less has been done on the rotating time-varying structure. Rotating time variations have great advantages over other time-varying structures. One of the advantages of rotating time changes is the lack of production of many additional harmonics, which originates from the principle of rotating Doppler shift in frequency. Among its other advantages, it is possible to define a time...