Results 1 to 10 of about 174,596 (200)

Study on dynamic sealing performance of combined sealing structure of telescopic type of downhole robot by using HTHP coupling method [PDF]

open access: yesScience Progress, 2021
The sealing performance will directly affect the operation of downhole robot under HTHP condition. Traditional analysis methods of sealing performance are that the temperature and pressure is loaded respectively.
Jianguo Zhao   +7 more
doaj   +3 more sources

Structural Design and Sealing Performance Analysis of Biomimetic Sealing Ring [PDF]

open access: yesApplied Bionics and Biomechanics, 2015
In order to reduce the failure probability of rubber sealing rings in reciprocating dynamic seal, a new structure of sealing ring based on bionics was designed.
Chuanjun Han, Han Zhang, Jie Zhang
doaj   +5 more sources

Evaluation of sealing performance of a compression packer at high temperature [PDF]

open access: yesScience Progress, 2022
Rubber is the key component of a compression packer, which directly affects the success or failure of seals. Presently, the contact stress between the rubber and borehole walls is used as the main evaluation criterion for the sealing ability of the ...
Xu Zheng, Bin Li, Gensheng Fei
doaj   +2 more sources

Structural parameters optimization for enhanced sealing performance of soluble ball seat sealing ring in shale gas volume fracturing process. [PDF]

open access: yesPLoS ONE
In the volumetric fracturing process of tight oil and gas horizontal wells, the soluble ball seat emerges as a crucial tool for pressure sealing due to its rapid solubility, full-diameter production capacity, and straightforward construction process ...
Shuang Jing   +5 more
doaj   +2 more sources

Evaluating the Sealing Performance of Endodontic Sealers: Insights Into Achieving Complete Sealing. [PDF]

open access: yesCureus
Background The importance of achieving optimal sealing in endodontic procedures cannot be overstated, as it directly influences the success and durability of root canal treatments. The objective of this research was to measure and identify the sealing ability of endodontic sealers by evaluating their adhesion to root canal dentin and the extent to ...
Chhabra A   +5 more
europepmc   +3 more sources

An Assessment Method of Sealing Performance and Stress Intensity Factors at Crack Tip of Subsea Connector Metal Sealing Rings

open access: yesEnergies, 2022
Subsea connectors are of a critical part for the sealing of subsea production systems. The working environment makes cracks initiate easily on subsea connector sealing rings.
Yingying Wang   +4 more
doaj   +3 more sources

Evaluation Analysis on Leakage Performance for Beam Seal With Two Sealing Areas

open access: yesIEEE Access, 2022
As a special type of aviation hydraulic pipe joint, a beam seal comprises two annular sealing areas. This paper presented a leakage model for an annular sealing area based on a developed three-dimensional percolation grid model and the porous medium ...
Yingjia Yu   +4 more
doaj   +2 more sources

Study on the Influence of Bionic Structure on the Sealing Performance of Centrifugal Pump Sealing Ring

open access: yesLubricants
In order to improve the sealing performance of a sealing ring in order to improve the efficiency of the centrifugal pump, based on the bionics principle, a calculation model for the bionic groove surface sealing ring structure of the centrifugal pump is ...
Ye Cai   +8 more
doaj   +3 more sources

Sealing Performance Analysis of an End Fitting for Marine Unbonded Flexible Pipes Based on Hydraulic-Thermal Finite Element Modeling

open access: yesEnergies, 2019
End fittings are essential components in marine flexible pipe systems, performing the two main functions of connecting and sealing. To investigate the sealing principle and the influence of the temperature on the sealing performance, a hydraulic-thermal ...
Liping Tang   +3 more
doaj   +3 more sources

Effect of Silicate Sealing Agent on High-Temperature Erosion Wear Properties of Thermal Spraying 304 Stainless Steel Coating [PDF]

open access: yesCailiao Baohu, 2022
The coating prepared by thermal spraying process often has many pores. In order to make up for the problems of corrosion resistance and erosion performance degradation caused by pores, 304 stainless steel coating was prepared on the surface of Q235 steel
ZHANG Chong, WANG Jian-guang, ZHENG Qiang
doaj   +1 more source

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