Results 1 to 10 of about 1,341 (98)

Study on Online Correction of Polished Rod Dynamometer Cards and Digitalization Application of Pump Dynamometer Cards [PDF]

Sensors
The polished rod dynamometer operates under alternating loads and large temperature differences for a long time, inevitably leading to zero drift and temperature drift issues.
Xiyu Zhang
exaly   +4 more sources

Automatic Recognition of Sucker-Rod Pumping System Working Conditions Using Dynamometer Cards with Transfer Learning and SVM

Sensors, 2020
Sucker-rod pumping systems are the most widely applied artificial lift equipment in the oil and gas industry. Accurate and intelligent working condition recognition of pumping systems imposes major impacts on oilfield production benefits and efficiency ...
Peng Zeng, Haibin Yu, Valeriy Vyatkin
exaly   +3 more sources

Enhancing pumping unit diagnosis with similarity splicing data augmentation and wavelet denoising [PDF]

Scientific Reports
Dynamometer card-based fault diagnosis confronts critical challenges including imbalanced data distributions, noise contamination, and constrained generalization capacity.
Xinlong Tan, Shaohua Wang, Hongqiang Wu, Fei Chen   +3 more
doaj   +2 more sources

Dynamometer card generation for pumping units based on CNN and electrical parameters [PDF]

Scientific Reports
In the actual production process of oil fields, the real-time and accurate acquisition of dynamic recorder data from the pumping unit is of great significance for the diagnosis of well failures.
Chunhua Yuan, Wendong Wu, Xiangyu Li
doaj   +2 more sources

Reliability and clinical applicability of lower limp strength using an enhanced paper grip strength [PDF]

European Journal of Translational Myology, 2023
The enhanced paper grip test (EGPT) quantitatively assesses lower limb strength. EGPT assesses the hallux grip force by reacting a pulling force derived from a card, being positioned underneath the participant's hallux.
Maria Tsekoura, Melina Pantou, Konstantinos Fousekis, Evdokia Billis, John Gliatis, Elias Tsepis   +5 more
doaj   +2 more sources

Accurate extraction of valve opening and closing points based on the physical meaning of surface dynamometer card

Petroleum Exploration and Development, 2011
The extraction of valve opening and closing points is the basis for the identification and quantitative analysis of pumping well dynamometer cards, and it is important for the failure diagnosis and production evaluation of pumping wells.
Liang Hua
exaly   +3 more sources

Multi-Scale Normalization Method Combined With a Deep CNN Diagnosis Model of Dynamometer Card in SRP Well

Frontiers in Earth Science, 2022
There are more than 20 types of dynamometer card measured of sucker rod pumping (SRP) wells in oil fields, and some working conditions are very complicated. The common diagnosis model of SRP well based on dynamometer card recognition has low accuracy and
Chaodong Tan, Peiyao Chen, Ziming Feng, Xin Ai, Mei Lu, Qiannan Zhou, Gang Feng   +6 more
doaj   +1 more source

Diagnostic of Operation Conditions and Sensor Faults Using Machine Learning in Sucker-Rod Pumping Wells

Sensors, 2021
In sucker-rod pumping wells, due to the lack of an early diagnosis of operating condition or sensor faults, several problems can go unnoticed. These problems can increase downtime and production loss. In these wells, the diagnosis of operation conditions
João Nascimento, André Maitelli, Carla Maitelli, Anderson Cavalcanti   +3 more
doaj   +1 more source

A Hybrid Approach of the Deep Learning Method and Rule-Based Method for Fault Diagnosis of Sucker Rod Pumping Wells

Energies, 2023
Accurately obtaining the working status of the sucker rod pumping wells is a challenging problem for oil production. Sensors at the polished rod collect working data to form surface dynamometer cards for fault diagnosis.
Yanfeng He, Zhijie Guo, Xiang Wang, Waheed Abdul   +3 more
doaj   +1 more source

Improving the Estimation of a Sucker Rod Pumping Dynamometer Card Based on the Terminal Quantities of the Driving Motor

IEEE Access, 2023
Rod pumping systems typically require the analysis of dynamometer cards for fault diagnosis. While external instrumentation assists in obtaining these cards, it simultaneously raises monitoring costs and complexity.
Lazaro Edmilson Brito Silva, Jes Jesus Fiais Cerqueira, Amauri Oliveira, Antonio Marcus N. Lima   +3 more
doaj   +1 more source