Results 31 to 40 of about 148,026 (279)

A Sample Expansion Method for Beam Pumping Unit Dynamometer Cards Based on Convolutional Variational Autoencoder

open access: yesShiyou jixie
Deep learning methods play an important role in the diagnosis of dynamometer card of beam pumping unit. However, in practical applications, dynamometer card samples of different fault types exhibit deficiencies in quantity, diversity and balance, which ...
Ye Zhewei Liu Zhang Liu Bing Jin Cun Zhou Yu
doaj   +2 more sources

Improvements of the beam pumping unit electrical drive of the dripper

open access: yesВестник Пермского национального исследовательского политехнического университета. Геология. Нефтегазовое и горное дело, 2012
81#!4)!1$79%+(+#&4!$%)7*!,!$++:");(+$1-2!"!0+/)#),+2"+/5%1&0(.3(! 1)(?+0.3 ()$+$+0 $ :),)($&"(.#& $1)(%)#& -%)4),%)#& , &;*&%,&4!$%+?+"!=&#)"):+1.0(!2"!".0(.'"!= %$2,5)1)*&& . @,7"!),&;)*&&(!2"!".0(+?+"!=& -#)/+:.4&(! )1-4)$1+153+/)2,5(=! -")()$+$+0 . "&0+/&1$7)(),&;1!3(&4!$%&3"!>!(&' , ()2")0,!((.3()$(&=!(&!4)$1+1.3+/)2,5(=! -")()$+$+0 . "+&;0+/&1$7$
Evgeniy Beliaev   +2 more
openaire   +1 more source

Solution of the Problem of Annular Space Gas Utilization in Wells Operated by Walking-Beam Pumping Unit

open access: yesIOP Conference Series: Earth and Environment, 2020
This article presents new approaches to solving one of the problems encountered in many oil fields - the disposal of gas accumulating in the annular space of production wells operated by walking-beam pumping units.
K. F. Gabdrkhmanova   +2 more
semanticscholar   +1 more source

Structure diagram of beam oil pumping unit.

open access: yes, 2023
Pour: Names of the parts in the diagram: 1. fixed valve; 2. pump barrel; 3. plunger; 4. swing valve; 5. pumping rod; 6. dynamic fluid level; 7. oil pipe; 8. casing; 9. tee; 10. packing box; 11. light rod; 12. donkey head; 13. swing beam; 14.
Zejun Yao (17041356)   +5 more
core   +1 more source

Development and Application of Ball Screw Pumping Unit

open access: yesShiyou jixie, 2021
At present, 12,000 rod pumped wells are implementing intermittent pumping system in the Daqing Oilfield, however, due to insufficient downhole feed flow, the use of conventional walking-beam pumping unit seriously affects the economic, efficient, energy ...
Zheng Dongzhi
doaj  

DESIGNING FEATURES OF POWER OPTICAL UNITS FOR TECHNOLOGICAL EQUIPMENT [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2016
This paper considers the question of an optical unit designing for transmitting power laser radiation through an optical fiber. The aim of this work is designing a simple construction unit with minimized reflection losses.
M. Y. Afanasiev   +2 more
doaj   +1 more source

Modeling and Control for Beam Pumping Units: An Overview

open access: yesProcesses
Beam pumping units play a key role in oil extraction. There is an increasing demand for optimal oil-extracting performance as operational environments are becoming more challenging and complex. Therefore, it is vital to create an acceptable mathematical model and develop robust control mechanisms. In the past decades, researchers have achieved fruitful
Zhi-Wei Gao, Shifeng Jia
openaire   +1 more source

Method for calculating dynamic loads and energy consumption of a sucker rod installation with an automatic balancing system

open access: yesЗаписки Горного института, 2020
The efficiency of sucker rod pump installations, which have become widespread in mechanized lift practice, is largely determined by the balance of the drive.
Kamil R. Urazakov   +2 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Exploring an Alternative to mRNA Vaccine Cold Chain Storage: MRNA‐Lipid Nanoparticle Stability When Dried in a Polymer Matrix

open access: yesAdvanced Functional Materials, EarlyView.
The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett   +19 more
wiley   +1 more source

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