Forecasting of the hydraulic fracturing efficiency as components of its design optimization

Kulakov, P. A.; Kutlubulatov, A.A.; Afanasenko, V. G.

doi:10.5510/ogp20180200349

Cited by 18 publications

(5 citation statements)

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“…During repair using welding in butt welded joints, various defects may be formed, the admissibility standards of which are given in the current regulatory and technical documentation. The resulting defects in welded joints adversely affect the life, reducing their reliability and safety [10][11][12]. To determine the defectiveness of a welded joint, a rich arsenal of non-destructive testing methods is currently being used, the use of which is laid down in methods for assessing the technical condition welding [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Application of an Ultra-Compact Eddy-Current Transducer for Investigation of Defects in Welded Joints of High-Strength Steel

Malikov

Ишков

Nikonov

2021

MSF

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This article discusses the results of work on the creation of a flaw detection unit, which is focused on the study of high-strength steels. Welded joints of transformer tanks, which are made of steel grade 08G2B, were selected as the object of research. We chose this grade because of the ultra-low carbon content of this material. This opens up opportunities for the application of eddy current nondestructive testing methods. For practical measurements, a scanning device was designed and optimized. It includes a converter that uses the principles of eddy currents and includes three coils assembled on a ferrite core, grade 80NMZ. The device was tested on samples with model continuity defects (cracks and holes). Also, within the framework of the publication, modeling of corrosion defects in welded joints was carried out.

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Section: Introductionmentioning

confidence: 99%

Application of an Ultra-Compact Eddy-Current Transducer for Investigation of Defects in Welded Joints of High-Strength Steel

Malikov

Ишков

Nikonov

2021

MSF

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“…When conducting industrial safety examination and accident investigation, destructive control methods are often used, with the help of which it is possible to study degradation of structure and change of mechanical characteristics [17,23]. However, it is hypothesized that when a material is tested for static stretching in an aggressive environment, destruction occurs at lower loads by instantaneous exposure to the aggressive environment.…”

Section: Introductionmentioning

confidence: 99%

Research of Mechanochemical Corrosion of Steels С1020 and А516-55

Tyusenkov

Nasibullina

2021

SSP

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During operation many metal structures are under conditions of combined impact of aggressive media (natural and/or technological) and mechanical loads. At the same time, the damage caused by the combined effect of corrosion and stress is often more significant than with simple "superimposing" of damage caused by mechanical load and influence of aggressive medium acting separately. When carrying out destructive tensile tests of equipment materials, there is a possibility of inaccuracy of results for determination of mechanical characteristics of this material due to actual operation of the material under conditions of aggressive environment. This, in turn, can lead to an erroneous calculation of the strength and life of the equipment. In this regard, it is particularly relevant to study the behavior of materials under the influence of various mechanical loads in aggressive media, as well as to determine the limit state of the metal based on the results of measurement of its electrode potential.

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“…The nozzle and plate contact devices are completely different in principle of operation, and their suitability for specific separation processes is different. The main difference is that in the packed column continuous contact is made between the gas and the liquid, while stepwise contact occurs in the tray [10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Use of numerical modeling methods in desing of combined rectification column

et al. 2019

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The article is devoted to the study of methods for modeling the operation of rectification columns using the HYSIS application software package. Such studies are very important not only for design, but also for the functioning of existing industries. The article proposes to use for combining nozzle devices in the concentration part of the column, and plate-shaped structures in the distant part of the column for more efficient and stable operation of distillation columns. To determine the hydrodynamic parameters of the operation of distillation column, a technique of determining the range of stable loads and the position of the operating point inside or outside the range of stable loads was taken. A column model was constructed using the HYSYS software package for separating gas mixtures with various contact devices: sieve trays, Rashig ring nozzles. Experiments for the same type and combined contact devices were carried out and their comparison was carried out in terms of hydraulic calculation and operating range. As a result of experiments with the use of the HYSYS software package, it was shown that the combined arrangement of contact devices can provide a stable hydraulic mode, in contrast to the use of similar contact devices.

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Forecasting of the hydraulic fracturing efficiency as components of its design optimization

Cited by 18 publications

References 0 publications

Application of an Ultra-Compact Eddy-Current Transducer for Investigation of Defects in Welded Joints of High-Strength Steel

Application of an Ultra-Compact Eddy-Current Transducer for Investigation of Defects in Welded Joints of High-Strength Steel

Research of Mechanochemical Corrosion of Steels С1020 and А516-55

Use of numerical modeling methods in desing of combined rectification column

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