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An Overview of Enhanced Oil Recovery Methods in Fractured Carbonated Reservoirs -Recent Advances in Petrochemical Science -Juniper Publishers JUNIPER PUBLISHERS-RECENT ADVANCES IN PETROCHEMICAL SCIENCE  AN OVERVIEW OF ENHANCED OIL RECOVERY METHODS IN FRACTURED CARBONATED RESERVOIRS Authored by Afshin Davarpanah In some cases that the fluid (oil) enter in the bottom of the well and the fluid pressure in the bottom of the well is not capable to bring them to wellhead, other techniques such as gas lift (gas is injected from the surface into the well and this gas with well oil creates mixed miscibility that the density is less than primary oil density and can be transmitted oil to wellhead with that bottom pressure) or down-hole pumps (the oil is pumped from the bottom to wellhead by this device) is used. But, this technique is not mentioned as one of EOR methods. To Read more.... Fulltext in Recent Advances in Petrochemical Science in JuniperPubli...
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CASTEP Study on Electronic and Optical Properties of Zinc Oxide

Abstract We investigate the effect of size on the electronic and optical properties of zinc oxide(ZnO). CASTEP simulations based on density functional theory has been performed to find the band structure, density of states and optical properties of zinc oxide(ZnO) bulk and nanocluster. The results show quantum confinement effect as band structure show discrete lines. The change in band gap has been observed from 0.822 eV to 0.013 eV. Band structure calculations show Fermi level shift towards conduction band. Optical properties display low value of absorption in nanocluster as compared to bulk. ZnO nanocluster show high value of dielectric function compared to bulk. The results demonstrate high response of ZnO cluster in electromagnetic waves. Read more about this article:  https://scholar.google.com/citations?view_op=view_citation&hl=en&user=zngTjlYAAAAJ&cstart=100&pagesize=100&sortby=pubdate&citation_for_view=zngTjlYAAAAJ:V3AGJWp-ZtQC Read more   Junip...
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The Relationship between Carbonate Reservoir Unit Features and Well Test Double Logarithmic Curves-Juniper Publishers

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Juniper Publishers Introduction Naturally fractured-vuggy carbonate reservoirs have various type so f units, and making full use of the well test data to study reservoir characteristics is the quit important to enhance oil production. The classification of the reservoir units and identification methods are analyzed. Combination of the results interpreted by multiple medium model and radial composite model, the well test double logarithmic curves are divided into five types corresponding to different reservoir unit’s characteristics. a. The oil well does not drill in any fractured-vuggy unit, but abundant fractured-vuggy units exist in the reservoir b. The oil well drill in the fractured-vuggyunits and many fractured-vuggy units exist in the reservoir. c. The oil well drill in multiple connected water-eroded caves. d. Carbonate reservoirs contain primarily matric. e. The oil well drill in some individual water-eroded caves, but the fractured-vuggy reservoir does not de...
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