Results 41 to 50 of about 258 (181)
Calculation Methods and Influence Analysis of the Fullness Degree of Sucker Rod Pump
Shiyou jixie, 2018 To accurately calculate the fullness degree of the sucker rod pump, based on the movement balance equation of the oil entering the pump, considering the gas and oil status in the pump, and the effects of oil parameters, well parameters, pumping ...
Qu Baolong, Ma Weiguo
doaj
A Steerable and Expandable Magnetic Aspiration Catheter for Enhanced Aspiration Thrombectomy
Advanced Intelligent Systems, Volume 8, Issue 7, July 2026.This article presents a novel magnetic aspiration catheter (MAC) that can be both actively steered and undergo distal‐end expansion via externally applied magnetic fields. The MAC facilitates precise branch selection and enhances clot engagement by improving endovascular navigation and aspiration efficiency. Phantom experiments validate its feasibility
Hakjoon Lee +7 more
wiley +1 more source
Fault Diagnosis of Sucker Rod Pump Based on Deep-Broad Learning Using Motor Data
IEEE Access, 2020 Conventional fault diagnosis methods of sucker rod pump (SRP) mainly focus the operating status of oil well by identifying the dynamometer cards (DCs), which are limited by the sensor maintenance and calibration, battery replacement and safety hazards ...
Jingliang Wei, Xianwen Gao
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Engineering Reports, Volume 8, Issue 7, July 2026.Diagram of the novel wave‐driven pump system: (a) components; (b) working principle; (c) buoy subsystem; (d) pipe subsystem. ABSTRACT Artificial downwelling of oxygen‐rich surface water (ORSW) has recently gained interest among environmental engineers as a potential solution for alleviating hypoxia in coastal waters.
Kyong‐Yong Min +2 more
wiley +1 more source
POWER-EFFICIENCY ANALYSIS OF OIL WELL SYSTEMS WITH SUCKER ROD PUMPING UNITS
Известия высших учебных заведений: Нефть и газ, 2015 The purpose of this paper is to analyze the power efficiency of oil well systems with sucker rod pumping units. For this study a chain-drive of HRC 80-6-02 type and a similar performance drive HRC 80-6-02 balancer pumping unit were selected. Based on the
A. M. Sagdatullin
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Control measuring and information system of the experimental stand
Известия высших учебных заведений: Проблемы энергетики, 2020 Modern trends in the development of technology are based on the need for experimental studies of the equipment being developed in laboratory conditions with the maximum approximation of the operating modes to real ones.
A. N. Tsvetkov +5 more
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Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1288-1308, July 2026.Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson +3 more
wiley +1 more source
Journal of Control Science and Engineering, 2013 Three feature extraction methods of sucker-rod pump indicator card data have been studied, simulated, and compared in this paper, which are based on Fourier Descriptors (FD), Geometric Moment Vector (GMV), and Gray Level Matrix Statistics (GLMX ...
Yunhua Yu, Haitao Shi, Lifei Mi
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ELECTROMECHANICAL DRIVE OF PRODUCTION WELL SUCKER ROD PUMP
Известия высших учебных заведений: Нефть и газ, 2017 The paper considers the design and operation of electromechanical drive of sucker rod pumps, which received a patent for utility model. The proposed device allows to significantly reduce weight and size dimensions of the drive mechanism of serial sucker ...
R. B. Bulatov, L. G. Tugashova
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A Uniform and Reduced Mathematical Model for Sucker Rod Pumping [PDF]
, 2004 The dynamic mathematical models were greatly developed to describe the motion of the sucker-rod pumping system since 1960s and various mathematic models based on different assumptions were presented. This paper does a study in three sides. First, a mathematical model is presented to describe the sucker-rod string with longitudinal and transverse ...
Leiming Liu +3 more
openaire +1 more source