Research on Signal Transmission Device of Multi Adaptive Coiled Tube Measurement and Control System
Zhuocheng Yin,
Fuqiang Zhang,
Wenyi Duan,
Qing Ma,
Jun Hao,
Zhongcheng Zhou
Issue:
Volume 7, Issue 6, November 2022
Pages:
84-88
Received:
4 December 2022
Accepted:
8 December 2022
Published:
10 January 2023
Abstract: As an important technology for oilfield development and oil and gas reservoir reconstruction, the demand for coiled tubing logging, perforating, fracturing and acidizing and other process operations has increased dramatically, and downhole testing and control operations must be completed through downhole data acquisition and transmission and control signals. However, at present, the special cable coiled tubing roller device and logging roller operating machine mainly used at home and abroad have problems such as single function, high cost, complex structure, and poor versatility. Therefore, based on the structural characteristics of the conventional coiled tubing machine, through the analysis of the existing coiled tubing testing and control data signal transmission system, the research and design of the signal transmission device for the multi adaptive coiled tubing measurement and control system was completed, and a kind of signal transmission device for the multi adaptive coiled tubing signal testing, acquisition, transmission and feedback control system with strong versatility and high transmission efficiency was studied and designed, It eliminates the high cost of traditional equipment customized processing and manufacturing and the high labor intensity of operation and maintenance operations caused by the single adaptability of operation process, which are caused by complicated structures. It is of great significance for realizing the transformation and upgrading of the multi-function of intelligent measurement and control integration of coiled tubing machine, and is extremely important for the innovation of the digital network real-time monitoring system for future oilfield development.
Abstract: As an important technology for oilfield development and oil and gas reservoir reconstruction, the demand for coiled tubing logging, perforating, fracturing and acidizing and other process operations has increased dramatically, and downhole testing and control operations must be completed through downhole data acquisition and transmission and contro...
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Design of an Alkaline Water Electrolyzer for Hydrogen Production
Chijindu Ikechukwu Igwe,
Chinonso Hubert Achebe,
Arinze Everest Chinweze
Issue:
Volume 7, Issue 6, November 2022
Pages:
89-98
Received:
27 November 2022
Accepted:
26 December 2022
Published:
10 January 2023
Abstract: Hydrogen is an excellent energy carrier that is capable of storing excess generated renewable energy. It can be utilised in a fuel cell to produce electrical energy which is a sustainable alternative to conventional energy sources. This paper focuses on the design process of an alkaline water electrolyzer for the production of hydrogen through the electrolysis of water. A single cell, zero-gap, unipolar alkaline water electrolyzer, operating with 30 wt.% KOH solution as electrolyte is designed for a capacity of about 306 g of water. The design of the cell geometry was modified to enable improved hydrogen production. Thermal and stress simulations were performed with Autodesk Inventor Nastran 2019 on some modelled components of the designed electrolyzer cell, with the working temperature at about 80°C to 90°C, while maintaining the operating pressure at about 1.0 bar. Thermal and stress distributions from the results agree with the choice of material for the components, and confirms polytetrafluoroethylene (Teflon), and polypropylene plastic suitable for alkaline electrolyzer construction. Von Mises stress evaluation obtained maximum stress values of 0.143 Mpa and 0.138 Mpa, as well as 0.126 Mpa and 0.157 Mpa, for the endplates and spacers for polytetrafluoroethylene and polypropylene plastics respectively. The stress values are well within the safe limits for both PTFE and PP materials which have yield strength of 35 Mpa and 24 Mpa respectively.
Abstract: Hydrogen is an excellent energy carrier that is capable of storing excess generated renewable energy. It can be utilised in a fuel cell to produce electrical energy which is a sustainable alternative to conventional energy sources. This paper focuses on the design process of an alkaline water electrolyzer for the production of hydrogen through the ...
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