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Oil composition at the late stage of field development is determined by both natural and anthropogenic factors. Change in compositi on and physical-and-chemical properties of oil could be considered significant in several ways. This is due to both changes in the interaction of oil and injected agents, and involvement of the reserves not yet developed. The most sensitive, quickly a nd accurately determined parameters are optical characteristics of oil, and namely the coefficient of light absorption. It depends on t...

The aim of this study is to investigate the organic facies characteristics of the Miocene Units in Northern Manavgat (Antalya), Tu rkey. The study area is located in the Western–Central section of the Taurus Belt. Miocene units mainly consist of three formations which are Upper Burdigalian–Langhian Oymap ınar Limestone, Langhian Geceleme Formation and Serravallian–Torto nian Karpuzçay Form ation. The Units consist of sandstone, siltstone, claystone , limestone, clayey limestone and reef limestone. Total or...

Crude oil composition is very complex and can vary even within in every reservoir. Petroleum crude oil content varies according to light, the ratio of hydrocarbon classes, the content of compounds with oxygen, nitrogen, or sulfur and the presence or absence of components.Such oils have been classified according to the amount of paraffin, the percentage of sulfur in the fuel freezing point. This material is inte nded to present the existing classifications andproperties near the Romanian Petroleum and ordering a ne...