CYCLICAL COMPOSITION OF PERMIAN ROCKS Nurgalieva, N G; Nurgaliev, D K
ARPN journal of engineering and applied sciences,
01/2015, Volume:
10, Issue:
1
Journal Article
Permian rocks within Volga-Kama rivers region were considered in light of environments and mechanisms of sedimentary cycles during Middle and Late Permian. Cycles are reconstructed on a lot of ...lithological data series (grain size, carbonates, magnetic susceptibility) in variations along the sections and in statistical models of spectral analysis. It is mathematically showed that coarse grains parameter is important to reconstruct cyclical composition of section consisted of marine and continental facies. Analysis of cycles on other lithological properties should be carried out in parts of sections with no signs of major breaks and scores.
Deficiency of minerals, limited reserves of conventional hydrocarbon raw materials indicates the need to involve in the fuel and energy complex of other sources of hydrocarbons. Fields of ...super-viscous oil are one of the sources. This article is devoted to the study of sediments of the Permian sedimentary complex containing super-viscous oil deposits. The geological structure of the Lower Kazanian and Ufimian deposits is considered. A characteristic of the Sheshmian sandstone pack is given. The analysis of the set of geophysical studies is presented. Modeling of a shallow super-viscous oil deposit based on the lithologic-technological types of the productive formation was carried out, based on the results of drilling, core material and logging. The features of constructing the structural framework of a three-dimensional grid, and a lithological-technological model are highlighted. The distribution of porosity, permeability and oil saturation is described.
URZHUMIAN STAGE IN GEOCHEMICAL VARIATIONS Nurgalieva, N G; Khaziev, R R; Gareev, B I ...
ARPN journal of engineering and applied sciences,
05/2014, Volume:
9, Issue:
5
Journal Article
Geological site Cheremushka is known as key stratigraphic record of Urzhumian stage of Middle Pennian (Biannian) series. It is situated on the Volga River's right bank, near Kazan city (Russia). In ...present paper lithology and geochemistry of this section is analyzed by EDXRF and discussed to reveal regional facial and cyclic features of the succession formed in altered sedimentary environments. Bulk geochemistry of sediments can be used to characterize the distribution of allogenic and authigenic components. It can also be used to compare these distributions with the general evolutionary stages of Volga River's region. The sedimentary sequence at site Cheremushka is divided into nine geochemical stages and sedimentary cycles using bulk geochemistry profiles, where silica change is considered as basic. The stage (cycles) boundaries correlate with the significant lithologic boundaries. Paleoenviromnental evolution is interpreted as alteration of lagoon and terrigenous flux influenced environments in arid climate during Sulitzkian time and in humid climate during Isheevskian time.
The Pashyian Regional stage (horizon) is the main productive unit of the middle Devonian clastic succession of the South Tatar arch. This article presents, for the first time, maps of the lower and ...upper parts of the Pashyian, including data on sand-shale ratio, number of sand layers (reservoirs) and thickness, based on the analysis of logging data from 25,000 wells. The maps were created by spatial interpolation of Natural Neighbor and ArcGIS Pro software. The model of sedimentation of the Pashyian Regional stage reflects the interpretation of the plotted maps as well as the synthesis of the results of detailed core investigations (lithological, sedimentological, ichnotextural, petrophysical, etc.) and analysis of archive and published materials. The main points of the proposed model are as follows. The Pashyian sediments were formed in a marine basin, in an environment comparable to that of the middle shelf of modern seas – in an offshore zone dominated by current activity. The basin floor was a relatively flat plateau, on which sandy, silty and clay sediments were simultaneously accumulated. Sediments of all types accumulated during sea transgression. Sea regression caused erosion and destruction of the already formed sediments. Positive landforms of seabed relief, composed predominantly of sandy well-sorted material, comprised autochthonous underwater sand bars, formed by constant currents parallel to the bathymetric contour of the seabed. Underwater sand bars formed extensive systems nearly throughout the entire territory of the modern South Tatar arch. At the same time, allochthonous, poorly sorted, less mature sediments were formed in underwater troughs produced by transversal currents (directed from the shore towards the sea). The proposed model explains the consistent thickness of the Pashyian Regional stage, the mosaic distribution of sand bodies over the area, and the lens-like shape of the sand and siltstone reservoirs. The model can be extrapolated to other stratigraphic intervals of the Devonian clastic succession with similar sedimentological features.
The Lower Kazanian sedimentary succession was considered based on the data from the lithological and stratigraphic description and ESR obtained for the outcrop section within the basin of the Sheshma ...and Inesh Rivers (Republic of Tatarstan). The Lower Kazanian facial composition correlates with the specific composition and variations of the paramagnetic centers Mn2+, SO3–, SO2–, PO2–, C600, and E'. These ESR labels can be used as facial and chemostratigraphic criteria to stratify and correlate the Lower Kazanian sections in Volga-Kama region.
This paper considers the genesis of clayey sediments of the Urzhumian stage (the Middle Permian) by the XRF data on samples from the reference section. It was revealed that clayey sediments were ...formed as a result of the low temperature transformation of smeсtite into other phillosilicates, which occurred during the Urzhumian stage due to the arid climate, specific composition of provenance rocks, sharp and rapid changes in the hydrochemical composition of the sedimentation basin (variation in Mg2+), and terrigenous flows containing feldspars in the amount sufficient for enrichment of the sediments with Al3+ and К+ through the bioinert processes at the stage of diagenesis.
The sodium-dependent phosphate cotransporter NaPi2b encoded by the SLC34A2 gene is a transmembrane protein that belongs to the family of phosphate transporters SLC34 and is involved in maintaining ...phosphate homeostasis in the human body. The phosphate transporter NaPi2b is expressed in several normal tissues and body organs, as well as in malignant neoplasms of the ovary, lung, colorectal, and other types of cancer. The membrane protein NaPi2b is a target for therapeutic humanized antibodies Rebmab200, XMT-1535, and XMT-1536 in cancer cells. These antibodies were created based on MX35 antibodies and are directed against the large extracellular domain of the transporter NaPi2b. Since the location of the N-terminal domain of NaPi2b in the cell has not been experimentally confirmed, this work aimed to analyze the recognition of the phosphate transporter NaPi2b in ovarian cancer cells OVCAR-4 and OVCAR-8 by antibodies against the N-terminal domain of the transporter using Western blot analysis and confocal microscopy.
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