the berriasian-valanginian fahliyan formation forms one of the giant reservoirs in the subsurface of the abadan plain, onshore iran. a detailed petrographical analysis of the available cores and thin sections revealed that the different diagenetic parameters influenced the reservoir quality of the fahliyan formation in this field. the fahliyan formation has been influenced by three diagenetic e...

a novel gram-positive actinobacterium isolated from a human clinical source. Four-year prospective study of STAPH-IDENT system and conventional method for reference identification of Staphylococcus, Stomatococcus, and Micrococcus spp. Alvarez-Grande J. Relapsing bacteraemia due to Micrococcus luteus in a haemodialy-sis patient with a Perm-Cath catheter. To the Editor: Some 80% of parasitic infe...

In this research attempts were made to estimate the in-situ stresses acting on a hydrocarbon reservoir based on routine activities of acid injection in oil reservoir. It was found that the relation between the re-opening pressure of fracture and principal in-situ stresses can be estimated using rock mechanics equations for the circular underground cavities. An appropriate relation between the m...

reservoir characterization plays an important role in different parts of an industrial project. the results from a reservoir characterization study give insight into rock and fluid properties which can optimize the choice of drilling locations and reduce risk and uncertainty. delineating hydrocarbon bearing zones within a reservoir is the main objective of any seismic reservoir characterization...

The chemical surfactant flooding can mobilize the trapped oil by lowering the interfacial tension between oil and brine and in some cases altering the reservoir rock wettability. In this work, the effect of surfactants on oil/brine interfacial tension was experimentally investigated. First, the effect of surfactants concentration was surveyed. Afterwards, the effect of salinity on surfactant be...

the olang area is a part of gheshlagh-olang synclinal, which is a member of eastern alborz coal basin and is situated at a distance of70 km northeast of shahroud city. coal-bearing strata of this region are part of the shemshak group (upper triassic to lower jurassic).samples from the 9 coal seams of the olang coal deposits were collected and ashed. the aim of this study is to determine theoccu...