Advanced searches left 3/3

Gas - DOAJ

Summarized by Plex Scholar
Last Updated: 03 July 2022

* If you want to update the article please login/register

Phase behavior of condensate gas and CO2 / CH4 re-injection performance on its retrograde condensation

Wenchang A Depression in Pearl River Mouth Basin is the highest hydrocarbon-producing depression in the west of the area. Retrograde condensation is intended to inject the self-produced gas from Well WC9-2-X and the gas moved from the WC14-3 gas field to minimize the condensate damage in the near-wellbore area. The phase change process of condensate gas in Well WC9-2-X with temperature and pressure was first investigated, followed by the retrograde condensation effect of two types of gas on condensate. Although Wenchang 92012 is a low condensate reservoir, in the process of depressurization and production over the years, gas condensate has slowly increased, resulting in a large amount of gas condensate near the wellbore. The two forms of gas have a dramatic effect on the retrograde condensation of the gas condensate, with the increase in the amount of gas re-injection volume. Ch4 leads the self-produced gas of Well WC9-2-X, with CH4 as the predominant component, and the CO2 / CH4 contents in the input waste gas field are 42. 50 mol% / 41. 60 mol%, respectively. This paper provides theoretical support for gas re-injection to minimize condensate injury in the Wenchang 920132 gas field, and it is also important for long-term exploration of the condensate gas reservoir.

Source link: https://doi.org/10.1016/j.arabjc.2022.104065


Comprehensive investigation and evaluation for the different multiphase flow correlations in gas wells

Accurate production forecast of gas wells aids in decision making and maximizing reserves, helping in decision making and maximizing reserves. Petroleum engineers develop current conditions of the fluid flow to aid them in forecasting future results. Using two commercial software, we investigated and evaluated the various multiphase flow correlations. The modeling of single-phase flow is considered the simplest case, but considering multiphase flow makes it more difficult. The following 3 different drilling, well geometry, and tubing diameter measurements were among the 537 bottom hole pressure data points. For each correlation, we could determine the likely percentage error and average absolute percent error for each correlation under various flow conditions. According to this paper, petroleum engineers will be able to determine the correct multiphase flow correlation for different flow and well conditions. It gives an AAPE of 5. 7 percent and 9. 72% for software A and B.

Source link: https://doi.org/10.1016/j.ejpe.2022.06.003


Investigation of fault detection and isolation accuracy of different Machine learning techniques with different data processing methods for gas turbine

With three different data smoothing methods for gas turbine fault detection and isolation tasks, the present study explores the accuracy of various machine learning classification methods. Flexible inlet guide vane and bleed air were included in the gas turbine's performance model, which was developed considering variable inlet guide vanes and bleed air. Support Vector Machine's computation time is also higher, according to K-Nearest Neighbours, although K-Nearest Neighbours is the lowest. Ultimately, the study shows that K-Nearest Neighbours is the most effective classification system for gas turbine engine fault identification and isolation application.

Source link: https://doi.org/10.1016/j.aej.2022.06.026


Effects of Mercury Concentration on the Health and Safety of Oil and Gas Workers

This report investigates the occurrence, exposure, and effects of mercury on oil and gas workers in Oman. It also investigates the immediate/chronic consequences of mercury poisoning on maintenance and inspection employees, who are particularly vulnerable to the adverse effects of mercury poisoning during oil and gas operations. Methods: Using 68 respondents with 1 u2013 6 years of service in the field, the two-pronged literature review and survey questionnaire was used to determine the effects of mercury exposure and poisoning. Conclusions: Over 90% of participants had symptoms of elemental, organic, and methyl mercury poisoning, according to the questionnaire response rate of 72%. However, the respondents who developed methyl mercury signs were due to eating seafood and cigarettes, whereas elemental and organic mercury symptoms are related to oil and gas industries.

Source link: https://doi.org/10.3126/ijosh.v12i3.40325


Investigation on Weld Characteristic, Welding Position, Microstructure, and Mechanical Properties in Orbital Pulse Current Gas Tungsten Arc Welding of AISI 304L Stainless Steel Pipe

In this research by Pulse Current Gas Tungsten Arc Welding without a metal filler of AISI 304L stainless steel pipe, a plastic welding process is carried out. This paper examines the effects of pulse current parameters, weld position, and pulse width on weld geometry, mechanical stability, and microstructure. Continuous current and pulse current are the welding techniques used in this research. The mean current value of each parameter is the same as 100 u00b1 0. 5 Amperes, but in the pulse current, peak current, peak current, peak current time, and base current time are all variations, according to the base current time. Due to gravity's effect, the flat position is concave and the overhead position is convex. Weld geometry on the outside of pipe has shown that the flat position is concave and the overhead position is convex. At parameter 65-B and the flat position, the specimen's tensile strength has decreased by 14. 23 percent from the base metal.

Source link: https://doi.org/10.14716/ijtech.v13i3.3134


Gas- and Coal-based Power Generation to Spur Economic Growth in Pakistan?

Electrical energy is the new form of energy that can be produced from hydel, thermal, nuclear, and other sources. To determine the short-run and long-run effects of energy use in the power sector on economic growth, three econometric models were developed. The results show that the use of natural gas and coal in the power sector has a positive and statistically significant influence on Pakistan's economic growth. Compared to oil for industrial development in Pakistan, the report recommends that power generation be based more on gas and coal rather than to oil for economic growth.

Source link: https://doi.org/10.52131/jee.2021.0201.0012


Wear Characteristics of Hardfacing Coatings Obtained by Tungsten Inert Gas Method

TIG coatings were applied with the following TIG: TIG EL-500 HB, EL-650 HB, EL-3348 of Most. One tester measured the friction coefficient and wear rate during the measurement, while the others did not test with the friction pair 0,4 mm, track radius 10 mm, normal load 20 N, acquisition rate 10 Hz, and sliding distance 2000 m. The best material is EL-3348 HB, according to the multi-criteria review of the building materials discussed, factoring in five aspects.

Source link: https://doi.org/10.12913/22998624/112405


Cavitating Fuel Flows in Hypocycloid Pump from the Perspective of Applying the Effect of Gas Desorption from the Solution with Nucleation of Gas Bubbles

This paper explores the cavitation process from the viewpoint of utilizing the effects of gas desorption from the solution's nucleation of gas bubbles. An original pump design with a hypocycloid power transmission that allows the application of the desorption effect is shown. The second part of the essay explores the likelihood of cavitation occurring in the pump.

Source link: https://doi.org/10.12913/22998624/118104


Proposal of a Method for Measuring Gas Flow in a Heating Furnace: A Simulation Study

Modeling techniques make it possible to engineer and simulate a manufacturing process or industrial equipment for conditions that take into account the above-mentioned features. The paper describes the procedure for estimating the movement of flue gases in a gas heating furnace's working space, which results in their enthalpy representation. On and off burners and fuel flow to them were created for three case studies, which were simulated with set values of on and off burners and fuel flow to them. The effect of these parameters on the total amount of recirculated flue gas was investigated. The fuel flow control to the burners at the time of the furnace's outlet side had a larger effect on overall recirculation than the switching on and off the burners on the furnace's outlet side, according to the study.

Source link: https://doi.org/10.12913/22998624/132952

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions