Study and determination of regularities in variability of oil rheological properties to enhance oil recovery

Moldabayeva, G.Zh.; Abileva, S.Zh.

doi:10.21533/pen.v9i4.2299

Cited by 8 publications

(9 citation statements)

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“…Гидрофобные эмульсии представляют собой эффективные средства для формирования гидрофобных покрытий, способных эффективно защищать от воздействия воды и влаги. В данной статье рассматриваются методы и используемые материалы при проведении лабораторных исследований гидрофобных эмульсий для обеспечения водоизоляционных работ в нефтяной сфере [2].…”

Section: бурениеunclassified

Analysis of Laboratory Studies of Hydrophobic Emulsions to Ensure Water Insulation Work in Oil Fields

AKHYMBAYEVA,

KABDULOV,

MAULETBEKOV

et al. 2024

NiG

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This article is devoted to the research and implementation of methods for ensuring water insulation works (WIW) in the oil sector using hydrophobic emulsions. In the context of modern requirements for environmental safety and efficiency of production processes in the oil industry, where water can become a source of problems, the introduction of innovative materials and technologies plays an important role. Conducting laboratory studies of hydrophobic emulsions for WIW in the oil sector is a multiprocess approach, starting from the initial assessment of the chemical component and ending with thorough testing for compliance with the requirements of specific operating conditions. The analysis evaluates the physico-chemical properties of the emulsion, such as density, viscosity, pH level, degree of dispersion, as well as its adhesive and cohesive characteristics. Special attention is paid to the study of the surface properties of hydrophobic emulsions, since their ability to form stable water-repellent coatings directly affects the effectiveness of protection against water exposure. To do this, tests are carried out on wettability, contact angle, adhesion to various types of surfaces, which allows us to determine the optimal conditions for the use of emulsions in specific situations. The article describes the principles of action of hydrophobic emulsions in the context of waterproofing works, emphasizing their ability to create a protective barrier, preventing moisture penetration into oil facilities. The paper presents the results of laboratory studies demonstrating the effectiveness of the use of hydrophobic emulsions in various operating conditions. The article discusses the technical aspects of the use of hydrophobic emulsions in the WIW process, analyzes their resistance to various environmental factors, and also considers the prospects for the development of this technology in the oil industry. The results obtained can be useful for specialists dealing with water insulation in oil companies, as well as for the scientific and engineering community interested in the development of innovative technologies in the oil sector. The purpose of this article is to analyze laboratory research and provide recommendations on the use of polymer composition.

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Section: бурениеunclassified

Analysis of Laboratory Studies of Hydrophobic Emulsions to Ensure Water Insulation Work in Oil Fields

AKHYMBAYEVA,

KABDULOV,

MAULETBEKOV

et al. 2024

NiG

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“…Одной из моделей для оценки трещинообразования при бурении является критерий трещинообразования по Критерию Кольда. Он описывает условия трещинообразования в горной породе в зависимости от некоторых параметров [3].…”

Section: Examples Of Numerical Calculations and Modeling Are Given As...unclassified

Analysis of the Manifestation of Cracks in Rocks During Hydraulic Hammer Drilling

AKHYMBAYEVA,

KABDULOV,

MAULETBEKOVA

et al. 2023

NiG

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This article is devoted to the study of the process of crack formation in rocks during hydraulic hammer drilling. Analysis of the manifestation of cracks in rocks during hydraulic percussion drilling is a key aspect of research aimed at the optimization and efficiency of this drilling method. The article presents a comprehensive analysis of the mechanisms of crack formation in rocks under the influence of hydraulic shock waves, identifying factors influencing their development and propagation. The work highlights the basic principles and mechanisms of hydraulic percussion drilling, and also analyzes the factors influencing the formation of cracks in rocks during this drilling method. In addition, various parameters such as water pressure, impact velocity, tool type and rock characteristics are considered and their influence on fracture formation. The paper presents numerical modeling and calculation methods used to analyze the factors influencing the formation of cracks during well drilling. Basic parameters are considered, such as well depth, type of drilling equipment used, physical and mechanical properties of the rock, drilling fluid pressure and others. Examples of numerical calculations and modeling are given, as well as an assessment of the influence of various factors on the formation of cracks in rock. The purpose of this article is to summarize current information on the formation of cracks during the hydraulic percussion drilling method. The scientific significance of this study lies in the possibility of predicting and controlling the formation of cracks during hydraulic drilling, which contributes to more efficient use of resources and improved drilling safety. The results obtained can be used in the practice of geological exploration and mining work to optimize drilling processes and improve the quality of mineral extraction. Understanding the processes of formation of cracks in rocks with this drilling method will allow optimizing its use, improving control over the process and ensuring more efficient and safe extraction of minerals from the bowels of the earth.

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“…); availability of abrasive components within the liquid flow; possible salt and paraffin deposition and implementation of measures to eliminate them; pressure and temperature changes along a well bore; well operating procedure; stress level of tube metal; mechanical wear under friction; specific activities (i.e. use of chemical, acid reagents) to intensify production and restrict water inflow as well as leakage of the threaded connections, and manufacturing defects of tubes and connectors etc [5]- [7].…”

Section: Introductionmentioning

confidence: 99%

Degradation of the internal well equipment steel under continuous service in the corrosive and aggressive environments

Vynnykov¹,

Kharchenko²,

Manhura³

et al. 2023

Min. miner. depos.

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Purpose is to analyze steel degradation of the internal well equipment during its continuous service while contacting directly the corrosive environments. Methods. A range of research concerning the damaged metal tubes of the internal equipment for oil and gas wells, in particular regarding continuous service tubing, comprised both standard and specific studies involving different variations of X-ray spectral analysis with the use of scanning electron microscope JSM-35CF (JEOL Company, Japan) and SEM-515 with microanalyzer Link by Philips Company. The studied samples have been made of tubing in the period of the unauthorized and emergency well shutdowns; life of the wells is 0 up to 15 years. To analyze both structure and chemical composition of metal inclusive of such gases as oxygen and hydrogen, chippings were produced mechanically from various parts of tube walls. Findings. X-ray structural studies have made it possible to obtain data confirming cementite decay (Fe3С) in the tube metal during continuous operation of the internal well equipment. X-ray structural analysis methods have helped identify the parameters of crystal lattice of a matrix; and a level of elastic distortions of the lattice (i.e. microstresses of the distortions) has been evaluated as well as carbon distribution within ferrite and cementite. The abovementioned offered the possibility to describe both reason and mechanism of the reduced resistance to corrosion in the context of internal well equipment. Originality. New regularities under cementite decay in tube metal have been identified in addition to changes in the parameters of a crystal a lattice; microstresses of the lattice distortions; and carbon distribution within ferrite and cementite. The aforesaid helps explain in a new way both reason and mechanism of the reduced resistance to corrosion in the context of internal well structures operating continuously in aggressive environments. The basic sources and mechanisms of tube steel degradation, resulting from the metal hydrogenation and oxidation, have been defined which becomes the foundation to develop scientifically the substantiated measures mitigating the negative impact on the condition of the internal well facilities operating continuously in the chemically aggressive environments. Practical implications. Degrading hydrogen effect on the crystal lattice of metal has been proved. The effect creates conditions under which tube structures of oil and gas wells experience their failure.

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Study and determination of regularities in variability of oil rheological properties to enhance oil recovery

Cited by 8 publications

References 0 publications

Analysis of Laboratory Studies of Hydrophobic Emulsions to Ensure Water Insulation Work in Oil Fields

Analysis of Laboratory Studies of Hydrophobic Emulsions to Ensure Water Insulation Work in Oil Fields

Analysis of the Manifestation of Cracks in Rocks During Hydraulic Hammer Drilling

Degradation of the internal well equipment steel under continuous service in the corrosive and aggressive environments

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