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Studying the direction of hydraulic fracture in carbonate reservoirs:Using machine learning to determine reservoir pressure

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Petroleum Research 2023年第2期8卷 226-233页

作者： Dmitriy A.Martyushev inna n.ponomareva Evgenii V.Filippov Department of Oil and Gas Technologies Perm National Research Polytechnic UniversityPerm614990Russia Department of Oil and Gas Fields Development LLC《LUKOIL-PERM》Perm614068Russia

Hydraulic fracturing(HF)is an effective way to intensify oil production,which is currently widely used in various conditions,including complex carbonate *** the conditions of the field under consideration,the hydraulic fracturing leads to a significant differentiation of technological efficiency indicators,which makes it expedient to study the patterns of crack formation in *** were carried out for all wells,which were considered as the objects of impact,to assess the spatial orientation of the cracks *** developed indirect method was used for this purpose,the reliability of which was confirmed by geophysical *** the analysis,it was found that in all cases,the crack is oriented in the direction of the section of the development system element characterized by the maximum reservoir *** the same time,the reservoir pressure values for all wells were determined at one point in time(at the beginning of HF)using machine learning *** reliability of the machine learning methods used is confirmed by the high convergence with the actual(historical)reservoir pressures obtained during hydrodynamic studies of *** obtained conclusion about the influence of the reservoir pressure on the patterns of fracture formation should be taken into account when planning hydraulic fracturing under the conditions studied.

关键词： Hydraulic fracturing direction Machine learning Actual field data Correlation coefficient Well flow rate Well geophysical studies Carbonate reservoir

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Operational method for determining bottom hole pressure in mechanized oil producing wells,based on the application of multivariate regression analysis

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Petroleum Research 2021年第4期6卷 351-360页

作者： inna n.ponomareva Vladislav I.Galkin Dmitriy A.Martyushev Department of Oil and Gas Technologies Perm National Research Polytechnic UniversityPermRussia614990 Department of Oil and Gas Geology Perm National Research Polytechnic UniversityPermRussia614990

One of the major tasks of monitoring production well operations is to determine bottom-hole flowing *** overwhelming majority of wells in the Perm Krai are serviced using borehole pumps,which makes it difficult to take direct bottom-hole flowing pressure *** bottomhole filtration pressure(BHFP)in these wells is very often determined by recalculating the parameters measured at the well mouth(annulus pressure,dynamic fluid level depth).The recalculation is done by procedures based on analytically determining the characteristics of the gas-liquid mixture in the wellbore,which is very inconsistent to perform due to the mixture's complex *** article proposes an essentially different approach to BHFP measurements that relies on the mathematical processing of the findings of more than 4000 parallel mouth and deep investigations of the oil production wells of a large oil-production *** a result,multivariate mathematical models are elaborated that allow reliably determining the BHFP of oil-production wells in operation.

关键词： Production well Bottom-hole flowing pressure BHFP determination Technique Multivariate statistical model Regression analysis Multilevel modeling

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Identification of genes involved in the formation of soluble dietary fiber in winter rye grain and their expression in cultivars with different viscosities of wholemeal water extract

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The Crop Journal 2022年第2期10卷 532-549页

作者： Liudmila V.Kozlova Alsu R.nazipova Oleg V.Gorshkov Liliya F.Gilmullina Olga V.Sautkina natalia V.Petrova Oksana I.Trofimova Sergey n.Ponomarev Mira L ponomareva Tatyana A.Gorshkova Kazan Institute of Biochemistry and Biophysics Federal Research CenterKazan Scientific Center of the Russian Academy of Sciences420111 KazanRussia Tatar Scientific Research Institute of Agriculture Federal Research CenterKazan Scientific Center of the Russian Academy of Sciences420059 KazanRussia

The grain of rye(Secale cereale L.) used for baking contains a large amount of non-starch polysaccharides,making it an excellent component of functional foods. But rye grain intended for alcohol production and forage use should have a reduced content of these polysaccharides. A comprehensive parameter that can predict the best field of application for winter rye grain is the viscosity of its wholemeal water ***, our understanding of the genetic background underlying this key trait and associated features of rye grain is poor. By analyzing six Russian winter rye cultivars, we identified the most contrasting forms and characterized the peculiarities of their water-soluble carbohydrates capable of influencing the viscosity of water extracts. Then, using phylogenetic and transcriptomic analyses, we identified in the rye genome many genes encoding putative glycosyltransferases and glycosylhydrolases responsible for the synthesis and degradation of arabinoxylans, mixed-linkage glucans, cellulose, and some other polysaccharides. We determined the dynamics of m RnA abundance for these genes at three stages of kernel development. Comparisons of gene expression levels in two contrasting cultivars revealed specific members of multigene families that may serve as promising targets for manipulating non-starch polysaccharide content in rye grain. High-viscosity cultivars were characterized by up-regulation of many glycosyltransferases involved in the biosynthesis of arabinoxylans and other cell-wall polysaccharides,whereas low-viscosity cultivars showed up-regulation of several genes encoding polysaccharidedegrading enzymes.

关键词： Rye(Secale cereale) Kernel development Arabinoxylan Mixed-linkage glucan Viscosity

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novel method for the preparation of Cs-containing FAU（Y） catalysts for aniline methylation

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Frontiers of Chemical Science and Engineering 2018年第1期12卷 70-76页

作者： Olga A. ponomareva Polina A. Shaposhnik Marina Vo Belova Boris A. Kolozhvari Irina I. Ivanova Department of Chemistry Lomonosov Moscow State University Moscow 119991 Russia A.V. Topchiev Institute of Petrochemical Synthesis Moscow Russia

Cs-containing FAU（Y）-type zeolite catalysts were prepared by conventional and novel ion exchange procedures followed by incipient wetness impregnation with CsOH. The novel ion exchange procedure involved hydrothermal treatment of naY zeolite in aqueous solution of CsCl at 140-200 ℃ for 6-24 h. The samples were characterized by low-temperature nitrogen adsorption, X-ray fluorescence analysis, X-ray powder diffraction, scanning electron microscopy, 23na, 27Al and 133Cs magic angle spinning nuclear magnetic resonance, CO2 and nH3-Temperature programmed desorption. The results show that hydrothermal treatment at 200 ℃ allows to obtain higher degrees of ion-exchange （up to 83%） with respect to conventional method giving maximum 66%- 69%. Catalytic properties of Cs-containing FAU（Y） were studied in aniline methylation. The yield of nomethylani- line is shown to correlate with catalyst＇s basicity. The best catalyst performance was achieved over the catalyst with the highest ion-exchange degree impregnated with CsOH. The selectivity to n-methylaniline over this catalyst reached 96.4%.

关键词： FAU(Y) zeolite ion exchange with cesium aniline alkylation n-methylaniline

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Experience of application acupuncture in treatment of patients by rheumatic diseases

Experience of application acupuncture in treatment of patien...

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首届国际中西医结合风湿病学术会议

作者： Ponomarev Yu.V Kovalev P.L ponomareva n.A. Vladivostok State medical university. Tradicional Medicine Department. Vladivostok Russia.

Primorski Region belongs to a number of regions of Russia where methods of traditional oriental medicine take root into clinical practice more than 30 years very actively.

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CVD生长多壁碳纳米管的拉曼光谱径向呼吸振动模式观察(英文)

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新型炭材料 2015年第5期30卷 385-390页

作者： Valeriy V.Bolotov Vasiliy E.Kan Egor V.Knyazev Peter M.Korusenko Sergey n.nesov Yuriy A.Sten`kin Viktor A.Sachkov Irina V.ponomareva Omsk Scientific Center of Siberian Branch Russian Academy of Sciences

采用拉曼光谱仪、透射电镜、俄歇能谱仪、X射线光电子能谱仪等研究在Si O2/Si基底上化学沉积的多壁碳纳米管(MWCnTs)经390℃的空气中热处理120 min前后与HCl溶液化学处理前后的结构变化情况。拉曼光谱集中测试低频(250-300 cm-1)带。结... 详细信息

采用拉曼光谱仪、透射电镜、俄歇能谱仪、X射线光电子能谱仪等研究在Si O2/Si基底上化学沉积的多壁碳纳米管(MWCnTs)经390℃的空气中热处理120 min前后与HCl溶液化学处理前后的结构变化情况。拉曼光谱集中测试低频(250-300 cm-1)带。结果表明,经热处理和化学处理后,在250-300 cm-1形成的拉曼带在峰位和半宽几乎没变。由透射电镜可知,小直径碳纳米管的内径值与拉曼光谱测试结果一致。这些结果表明,低频带产生于小直径碳纳米管的内壁中碳原子的径向呼吸振动。

关键词：碳纳米管径向振动模式拉曼化学气相沉积显微镜

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Characterization of human adipose-derived stem cells phenotype as potential cell material for hybrid organ construction

Characterization of human adipose-derived stem cells phenoty...

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第十届中俄双边新材料新工艺研讨会

作者： Surguchenko V.A. ponomareva A.S. Bogdanova n.B. Abramov V.Yu. Sevastianov V.I. Moscow Institute of Physics and Technology(State University)141700 9Institutskii per.DolgoprudnyMoscow RegionRussia

＜正＞The immunophenotype of mesenchymal human adipose-derived stem cells is *** methods of isolation,culture and phenotyping are *** analysis has shown that mesenchymal human adipose-derived stem cells were positive for the cell-surface markers CD10,CD13,CD29,CD44,CD59,CD73,CD90,CD105,HLA-ABC and negative for the cell-surface markers CD34,CD45,CD71,CD133,and maintained this phenotype during at least five passages.

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