Texas Journal of Engineering and Technology
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Increasing the thermal stability of polyethylene
Get PDFIn this article, brief information about increasing the thermal stability of polyethylene is mentioned
Features of the temperature dependence of the photoconductivity of the base of Mn4Si7-Si- Mn4Si7 structures
Get PDFIn this article the influence of infrared radiation and temperature on the parameters of higher silicides of manganese on the surface of silicon created on the basis of impurity manganese atoms is studied. It is shown the possibility of creating effective thermal converters and photodetectors based on structure
Review of Sand Production Control and Management
Get PDFProduction of the sand becomes a significant problem throughout the life of wells, especially in poorly consolidated reservoirs. This issue frequently leads to tube buckling and abrasion of the down-hole and surface equipment as a result of the inflow of sand. In addition, the costs associated with the loss of hydrocarbon production, work-over operations, and the processes related to the repair and re-installation of the electrical submersible pumps (ESP), and the need for disposal of sand in an environmentally acceptable manner. In this article, the difficulties with sand production that arise during drilling and production operations are thoroughly reviewed. The consequences and mechanisms of sand production, the factors influencing sand production capacity (i.e., sand production causes), as well as the remedial options were discussed. Eventually, this article can be utilized as a reference for any issue concerning sand production in oil and gas wells
Theoretical and Methodological Issues of Modernization of Technology Education
Get PDFIn this article, topics such as modernization of technology science based on the requirements of the labor market, sustainable development from a socio-economic point of view, application of the knowledge, skills and qualifications acquired by students in the course of technical-technological and technological process operations in their independent practical activities are discussed. will be considere
Estimation of Pore Pressure and In-Situ Stresses for Halfaya Oil Field: A Case Study
Get PDFFormation pressure is the pressure of fluid in rock pores. As a geologic parameter, formation pressure plays an important role in exploration activity, drilling engineering and oil/gas field development. For drilling engineering, formation pore pressure is an indispensable parameter for rapid, safe, and economic drilling, so it is very important to forecast formation pressure precisely. Stratigraphy is always in a triaxial stress, it can be expressed by the principal stress in three directions. That is the maximum horizontal principal stress, the minimum horizontal principal stress and the vertical stress. In the horizontal direction exists extrusion stress approximately perpendicular to the long axis of the anticline, namely NNESSW direction. The three main stresses should be relatively homogeneous, and there is no great difference
Basing the longitudinal distance between the bodies of the combined machine
Get PDFThe article presents the results of experimental studies of the influence of the longitudinal distance between the bodies of machines for preparing the soil for planting potatoes on its agrotechnical and energy indicators. Justified the longitudinal distance between the building
Requirements for Transmission, Steering Gears Control And Suspension of the Carher for Hot Climate Conditions
Get PDFPreparation of transmission mechanisms of vehicles intended for operation in sandy-desert terrain provides for cleaning mechanisms from dust and dirt, checking the serviceability of all mechanisms and adjusting them in accordance with the instructions of manufacturers' instructions, cleaning external parts and crankcases of mechanisms from accumulations of contaminants and used oils and lubricants. Particular attention should be paid to cleaning the spline joints of the cardan shafts and filling them with fresh lubricant
Problems and Solutions to Cybersecurity.
Get PDFThis article provides general insights into cybersecurity, its problems, and its solution
Development Of Effective Compositions Based on Local and Secondary Raw Materials For
Get PDFThis article provides the development of effective compositions based on local and secondary raw materials for tanning and leather finishing. The use of reactive water-soluble polymers of local importance for the processes of tanning and finishing the leathers of the upper and lower parts of footwear is shown. The optimal options for the composition of the composition for the process of applying pigmented soil, containing hydrolyzed reactive water-soluble preparations K-4 under various conditions, and their distribution in the skin layers were determined
Description and Geography of Euphorbia L.Species in the Flora of Uzbekistan
Get PDFBased on the materials of the herbarium of the Institute of Botany of the Academy of Sciences of the Republic of Uzbekistan (TASH), scientific literature and cadastral data of the flora of Uzbekistan, reviews and identification of the genus Euphorbia L. were given. Herbarium specimens of the category in the unique herbarium fund of the institute have not been fully processed and analyzed. The article provides information on species found in the flora of Uzbekistan and their distribution. The distribution of species was given on the basis of monographs on the plant cadastre and flora of the regions