Adapting of a drill bit cutting structures type with the bottom-hole conditions of a well drilling

Попов, А. Н.; Trushkin, O.B.; Popov, M.A.

doi:10.33285/0130-3872-2020-01(325)-5-9

Cited by 2 publications

(3 citation statements)

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“…The appearance of phenoxyl radicals in such systems modeling oxidation indicates the abstraction of the hydroxyl hydrogen of phenol by active radicals as the primary elementary act of inhibition, and the reactivity of the OH group in phenol is one of the most important characteristics of phenol as an inhibitor [3][4][5][6][7].…”

Section: Methodsmentioning

confidence: 99%

“…The main goal is to transition major artificial and synthetic fiber enterprises to zero-discharge and waste-free technology. Special attention is given to the development of fibers with improved consumer and hygienic properties, which are used in the production of widely consumed goods [5,6]. As known, triacetate fibers are formed by a dry method from solutions, in which the fibers are formed as a result of evaporation at an elevated temperature of the organic solvent methylene chloride from the streams of the solution flowing from the holes of the spinneret [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Influence study of thermostabilizers on the properties of cellulose triacetates

Baltabaev,

Eshmukhamedov,

Abidov

et al. 2023

E3S Web Conf.

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In the chemical and petrochemical industry, the primary focus for workers in the upcoming years is to develop innovative and secure technologies and equipment that comply with stringent quality standards. This imperative encompasses the production of materials, devices, and other products that meet the highest global benchmarks in technical and economic aspects. Emphasizing the implementation of progressive technologies and advanced production methods is crucial for achieving substantial improvements in labor productivity across all sectors of the national economy, with special attention paid to the chemical industry. This paper work presents the results of a study on increasing the thermal stability of cellulose triacetate by introducing stabilizers into its composition. Regularities of plasticization of cellulose triacetate with low- and high-molecular compounds have been established. As a result, the deterioration of the physical and mechanical properties of polymer materials processed at high temperatures occurs due to thermo-oxidative degradation, which leads to changes in the composition of the main polymer chain and a decrease in molecular weight. The application of stabilizers is proposed to prevent this process at high temperatures.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence study of thermostabilizers on the properties of cellulose triacetates

Baltabaev,

Eshmukhamedov,

Abidov

et al. 2023

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…High quality cementing inevitably required regulation of the main properties of grouts using various chemicals. At the same time, grouts most frequently require correction of filtration characteristics, waiting on cement, pumpability, rheological indicators, and properties of the cement obtained [1,2].…”

Section: Introductionmentioning

confidence: 99%

Polyelectrolytes Efficiency in Grout Property Regulation

Agzamov

Kabdushev

Ismailov

et al. 2018

KEM

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Relevance of this study is concluded in the fact that high quality cementing requires regulation of the cement grouts’ properties using various chemicals. The objective of the work is based on the study of polyelectrolytes’ application efficiency used for regulation of cement slurries’ properties. In order to conduct the research the authors used the devices meeting the API requirements. Properties of cement slurry and cement were evaluated according to GOST 1581-96. In order to study the gas show emergence mechanism during the procedure of WOC (waiting on cement), the authors used a special experimental plant. It has been found that high efficiency during the research was shown by water soluble cationic polyelectrolyte (WSC-402), belonging to the class of cationic polymers. Also the paper considers its analog – cationic polyelectrolyte (PAK) released under the trade mark Praestol. Studying the mechanism of polyelectrolyte additives’ effect on cement showed that the chemicals can slow down the hydrating reaction of С3А in cement-water suspension, and prevent from the growth of gel strength of the grout, which causes drop in hydrostatic pressure of the cement grout column, provoking gas shows.

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Adapting of a drill bit cutting structures type with the bottom-hole conditions of a well drilling

Cited by 2 publications

References 0 publications

Influence study of thermostabilizers on the properties of cellulose triacetates

Influence study of thermostabilizers on the properties of cellulose triacetates

Polyelectrolytes Efficiency in Grout Property Regulation

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