Scientific Rationale for the Movable Pipeline Technology for Transporting CNG by Sea

Mandryk, Oleg; Artym, V. I.; Shtohry, Mariana; Zaytsev, V F

doi:10.2478/mspe-2020-0025

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…The research was conducted for CNG; component composition is presented in Table 3. The analysis of phase states of hydrocarbon mixtures at low temperatures was carried out for pumping and storage [58,59].…”

Section: Rationale For Selection Of Hydrocarbon Mixtures For Their Tr...mentioning

confidence: 99%

Storage of Compressed Natural Gases

Zakirova,

Krapivsky,

Berezovskaya

et al. 2023

Energies

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The article analyzes the modern theory and practice of transportation and storage of compressed natural gas. The expediency of the inclusion of a floating storage berth for the loading of gas carriers and container ships into the infrastructure of marine transportation of compressed natural gas is considered. Requirements for storage berth are formulated. It is shown that without using a marine mooring storage facility, the loading time of a gas carrier will considerably increase, and the economic efficiency of compressed gas transportation will lower due to the considerable time of loading and unloading of a gas carrier. The construction of a storage berth is proposed, and calculations of storage parameters and calculation of its buoyancy are made. The possibility of using the REFPROP vs. 9.1 software package to automate the selection of the composition of a multicomponent hydrocarbon mixture for further use at the selected range of temperatures and pressures is substantiated. The use of the system is considered in the example of phase equilibrium of a multicomponent hydrocarbon mixture.

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Section: Rationale For Selection Of Hydrocarbon Mixtures For Their Tr...mentioning

confidence: 99%

Storage of Compressed Natural Gases

Zakirova,

Krapivsky,

Berezovskaya

et al. 2023

Energies

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“…Equipment used in mining, oil and gas, metallurgy, and other industries operate in conditions that cause severe wear from friction, aggressive environments with a high content of abrasive particles, high temperatures, and cyclic and dynamic loads. Therefore, it seems necessary to use new, advanced, economically viable technologies that make it possible to achieve high reliability of modern equipment wear parts [ 1 , 2 , 3 , 4 , 5 , 6 ]. A number of requirements are placed on the technical condition of mechanical engineering products.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding

et al. 2022

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An analysis of common reinforcement methods of machine parts and theoretical bases for the selection of their chemical composition were carried out. Prospects for using flux-cored arc welding (FCAW) to restore and increase the wear resistance of machine parts in industries such as metallurgy, agricultural, wood processing, and oil industry were presented. It is noted that conventional series electrodes made of tungsten carbide are expensive, which limits their widespread use in some industries. The scope of this work includes the development of the chemical composition of tungsten-free hardfacing alloys based on the Fe-Mo-B-C system and hardfacing technology and the investigation of the microstructure and the mechanical properties of the developed hardfacing alloys. The composition of the hardfacing alloys was developed by extending the Fe-Mo-B-C system with Ti and Mn. The determination of wear resistance under abrasion and impact-abrasion wear test conditions and the hardness measurement by means of indentation and SEM analysis of the microstructures was completed. The results obtained show that the use of pure metal powders as starting components for electrodes based on the Fe-Mo-B-C system leads to the formation of a wear-resistant phase Fe(Mo,B)2 during FCAW. The addition of Ti and Mn results in a significant increase in abrasion and impact-abrasion wear resistance by 1.2 and 1.3 times, respectively.

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“…Design, technological and operational methods are used to increase drilling tool performance [26,27]. Design methods include improving threaded joint tightness [28][29][30]; preventing self-unscrewing [31]; rational choice of materials by studying structural changes; conducting corrosion studies of metals [32][33][34][35], and studying the processes of destruction [36,37], including different types of coatings (if present) [38][39][40][41]; substantiation of the stress state of pipes [42]; optimization of armaments, supports and units for drill bit washing [43,44], etc. The works of [45][46][47][48] present new approaches to strength and optimization estimates according to the operational criteria of rotating bearing elements for mining machines.…”

Section: Introductionmentioning

confidence: 99%

Influence of Heavy Weight Drill Pipe Material and Drill Bit Manufacturing Errors on Stress State of Steel Blades

et al. 2021

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Drilling volumes should be increased in order to increase hydrocarbon production, but this is impossible without the usage of high-quality drilling tools made of modern structural materials. The study has to analyze the design, technological and operational methods to increase the performance of drilling tools made of various materials and has highlighted prospects of technological method applications. The scientific novelty of the study consists in the development of a new analytical model of PDC drill bit–well interaction. The developed model takes into account the drill bit manufacturing errors in the form of bit body–nipple axes misalignment on the drill bit strength. This result makes it possible to determine the permissible manufacturing errors to provide safe operation of the drill bit. It is established that there is an additional transverse force that presses the drill bit to the well wall in the rock due to manufacturing errors. It is determined that the magnitude of this clamping force can be significant. The material effect has been analyzed on additional clamping force. It is established that geometric imperfection of the drill bit causes the minimal effect for the elastic system of the pipe string, which includes a calibrator and is composed of drill pipes based on composite carbon fiber material, and the maximal effect—for steel drill pipes. Polycrystalline diamond compact (PDC) drill bit and well wall contact interaction during operation in non-standard mode is considered. Non-standard stresses are determined, and the strength of the blades is estimated for different values of drilling bit manufacturing error.

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Scientific Rationale for the Movable Pipeline Technology for Transporting CNG by Sea

Cited by 7 publications

References 5 publications

Storage of Compressed Natural Gases

Storage of Compressed Natural Gases

Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding

Influence of Heavy Weight Drill Pipe Material and Drill Bit Manufacturing Errors on Stress State of Steel Blades

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