Results 21 to 30 of about 489,293 (298)

Data-driven soft sensing model for production system of offshore gas fields based on deep learning

You-qi chuyun, 2022
In view of the problems of great difficulty, high cost and low reliability in obtaining the operation data on the key state variables of production system in offshore natural gas fields, research on soft sensing was carried out, and a dynamic data-driven
WANG Dan, KANG Qi, GONG Jing, ZHANG Qi, YAO Haiyuan   +4 more
doaj   +1 more source

Dynamic Prediction of Natural Gas Calorific Value Based on Deep Learning

Energies, 2023
The natural gas quality fluctuates in complex natural gas pipeline networks, because of the influence of the pipeline transmission process, changes in the gas source, and fluctuations in customer demand in the mixing process.
Jingjing Hu, Zhaoming Yang, Huai Su
doaj   +1 more source

A New Method for Calculating Dynamic Reserves of Fault-Controlled Condensate Gas Reservoir

Energies
The SHB fault-controlled condensate gas reservoir is the largest ultra-deep carbonate gas reservoir in China, and the accuracy of dynamic reserve calculation is an important basis for developing the development plan.
Quanhua Huang, Fengyuan Wang, Hong Xiao, Wenxue Zhang, Jie Liu, Wenliang Li, Cong Yang   +6 more
doaj   +1 more source

Research on parameter selection method of gas-charged accumulator

Hangkong gongcheng jinzhan, 2023
Volume and pre-charge gas pressure are the key parameters of the gas-charged accumulator, which are of great influence on its dynamic performance(the output performance of pressure and flow under working conditions).
ZHU Hailong, ZHANG Qian, XIAO Xiaolei, ZHANG Peng   +3 more
doaj   +1 more source

CALCULATION OF GAS-DYNAMICS PARAMETERS AND STRESS-STRAIN STATE OF CELSIAN CERAMICS PRODUCTS

Bulletin of the National Technical University «KhPI» Series: Engineering and CAD, 2023
In the work using the finite element method, an analysis of the behavior of nose fairings made of radio-transparent ceramic materials of celsian composition was carried out. Determination of parameters of gas dynamics and stress-strain state was carried out using licensed ANSYS software.
Georgiy Lisachuk, Mykola А. Tkachuk, Anton Vasyliev, Dmytro Breslavsky, Ruslan Kryvobok, Valentyna Voloshchuk   +5 more
openaire   +1 more source

Finite Temperatur Dynamic Susceptibility of the Free Bose Gas

, 2001
A detailed calculation of the real part of the finite temperature dynamic susceptibility of the free Bose gas is presented. After a short discussion on the different ways in which it can be calculated for temperatures above and below the Bose--Einstein ...
Mazzanti, F., Polls, A.
core   +1 more source

Study on reasonable production allocation method of tight sandstone gas reservoir—A case of XX block in ordos basin

Frontiers in Energy Research, 2023
Reasonable production allocation of tight sandstone gas reservoirs is an important basis for efficient development of wells. Combining multiple mathematical models, the modified flowing material balance equation was established considering the variation ...
Min LV, Hongjun CUI, Yanyun LEI, Kaiyu Lei, Yushuang ZHU   +4 more
doaj   +1 more source

Simulation of the influence of surface chemical composition on internal gas flow at large Knudsen numbers [PDF]

, 2013
On the basis of the developed model, an attempt to describe a rarefied gas flow in the cylindrical channel, whose surface chemical composition conforms with the real experimental conditions, has been made.
Borisov, S. F., Porodnov, B. T., Ukhov, A. I.   +2 more
core   +1 more source

Coherent and Incoherent Dynamic Structure Function of the Free Fermi Gas

, 2000
A detailed calculation of the coherent and incoherent dynamic structure functions of the free Fermi gas, starting from their expressions in terms of the one- and semi-diagonal two-body density matrices, is derived and discussed.
A. Polls, Boronat, F. Mazzanti, Fäk, Gersch, Glyde, Glyde, J. Boronat, Lindhard, Lovesey, Mazzanti, Pines, Silver, Sokol, Sosnick   +14 more
core   +1 more source

Finite temperature dynamic structure function of the free Bose gas

, 2000
A detailed calculation of the finite temperature dynamic structure function of the free Bose gas is presented and discussed. After a short derivation of the expressions describing the exact response $S(q,\omega;T)$ and the Impulse Approximation (IA) $S_ ...
Mazzanti, F., Polls, A.
core   +1 more source