The fruit essential oil of Ferula gummosa boiss., Umbelliferae, which has been used as an antiepileptic remedy in Iranian traditional medicine, was evaluated for anticonvulsant activity against experimental seizures. The essential oil had no effect against seizures induced by maximal electroshock. However, it protected mice against pentylenetetrazole-induced tonic seizures. The protective dose ...

Abstract I n this paper we investigated total energy consumption and its individual forms (oil, natural gas, electricity, renewable energies and coal) relationship with real gross domestic product (GDP) in Iran. We employed Hsiao’s (1981) methodology and annual data which cover 1967-2010 for investigation. The empirical findings indicate there is bidirectional causality ef...

In this study, nanoparticle stabilized foam experiments were performed in bulk tests, micromodels, and sandpacks at elevated temperatures and pressures to investigate the flow behavior and displacement mechanisms for enhanced heavy oil recovery. The results from the bulk tests showed that the stability of the foam and oil in water (O/W) emulsion improved when silica nanoparticles (SiO2) were ad...

Fractured carbonate reservoirs account for 25% of world’s total oil resources and for 90% of Iranian oil reserves. Since calcite and dolomite minerals are oil wet, gas oil gravity drainage (GOGD) is known as the most influencing production mechanism. The most important issue within gas injection into fractured media is the channeling problem which makes the efficiency of gas injection process e...

The aim of this work was to evaluate New York State's regulatory program for plugging inactive oil and gas wells. Analysis of reports from the Division of Mineral Resources, Department of Environmental Conservation, reveals that three-fourths of the state's abandoned oil and gas wells were never plugged. Inadequate enforcement efforts have resulted in steady increases of unplugged oil and gas w...

this paper tries to survey the effective factors in creating an appropriate environment for improving advanced technologies in iranian national oil company and it offers some solutions for applying these technologies. in the beginning, the paper mentions the growing demand for oil more than its global supply in the years to come as well as the need to increase the oil reservoirs and recycling c...

Introduction: Occupational nature, strenuous physical activity, shift work, spatial and geographical location, as well as support facilities and equipment, pose greater risks to individuals in the oil and gas industry, especially those engaged in offshore oil exploration and production activities. The purpose of this article is to explain the issue of health and well-being of oil and gas indust...

In this environment, oil and gas companies are seeking opportunities to improve processes and technologies to remain competitive. Upstream oil and gas companies need integrated views of their production processes all the way from the reservoir to the pipeline. They must optimize their processes and perform predictive analysis of production problems to minimize losses. In downstream operations, ...

PURPOSE To compare anatomic and functional outcomes of macular hole surgery with either silicone oil or C(3)F(8) gas tamponade. DESIGN Retrospective comparative interventional study. PARTICIPANTS Fifty-four eyes of 51 patients underwent pars plana vitrectomy for macular holes. Thirty-one eyes were treated with silicone oil tamponade, and 23 eyes were treated with C(3)F(8) tamponade. METHO...

In this environment, oil and gas companies are seeking opportunities to improve processes and technologies to remain competitive. Upstream oil and gas companies need integrated views of their production processes all the way from the reservoir to the pipeline. They must optimize their processes and perform predictive analysis of production problems to minimize losses. In downstream operations, ...