Effects of make-up torque on the sealability of sphere-type premium connection for tubing and casing strings

B Yang, H Xu, S Xiang, Z Zhang, K Su, Y Yang - Processes, 2023 - mdpi.com
The present investigations on sealability evaluation for tubing and casing premium
connections depend on the FEM with testing. This paper proposed a theoretical model to …

Leakage model of tubing and casing premium connection based on sinusoidal contact simulation between rough surfaces

H Xu, Z Zhang, S Xiang, B Yang, T Shi - Processes, 2023 - mdpi.com
This paper proposed a semi-theoretical model to quantitatively predict leakage rate of tubing
and casing premium connections. The geometric parameters of the sealing surface profile …

Sealability analyses of premium connections characterized by a surface fractal function

Y Yu, Z Qu, Y Cao, Y Dou, J Li - Applied Sciences, 2023 - mdpi.com
With the development of high-pressure, high-temperature wells, the sealability of premium
connections is being threatened by heavy loads. For the sake of researching the sealability …

Experimental investigation of metal-to-metal seal behavior in premium casing connections for thermal wells

J Xie, C Matthews - SPE Canada Heavy Oil Conference, 2017 - onepetro.org
Thermal well service conditions have presented a significant challenge to the sealability of
casing connections. Over the years, industry has established various standards, protocols …

Modeling Surface Roughness and Flow of Gases in Threaded Connections to Analyze Sealing Performance

W Zhu, Y Liang, L Zhao - Processes, 2024 - mdpi.com
Oil casings and premium threaded connections play vital roles in the oil and gas extraction
industry. The present work establishes an integrated modeling framework for the sealability …

A quantitative model to calculate gas sealing capacity and design sealing parameters for premium connection

H Xu, B Yang - Mathematical Problems in Engineering, 2020 - Wiley Online Library
The present research studies about sealability of premium connection almost focus on
qualitative description by sealing contact stress distribution, which is not convenient for …

Design of premium threaded connections for oil casing based on Herz theory

C Wang, L Gao - Journal of Mechanical Science and Technology, 2024 - Springer
Aiming to improve the sealing performance and optimize the sealing surface structure of
premium threaded connections, a design method which parameterize the spherical sealing …

Small-scale Experimental Research on the Key Parameters Affecting Metal-to-metal Sealability

N Ji, P Wang, J Xie, M Zhao, C Feng… - Journal of Physics …, 2023 - iopscience.iop.org
The harsh service environment of high pressure and high temperature (HPHT) gas well
have posed great challenge to the seal integrity of the casing string thread connections. All …

Enhancement of Current Methodologies Used for Tubular Connection Product Line Validation

J Xie, J Xie - SPE Thermal Integrity and Design Symposium, 2019 - onepetro.org
For high pressure/high temperature (HPHT) and thermal wells, it is important to verify that
the selected tubular connection product possesses adequate structural integrity and sealing …

Experimental Study for Establishing Metal-to-Metal Seal Evaluation Criteria for Tubular Connections in Thermal and HPHT Applications

J Xie, D Friesen, M Droessler, T Roth… - SPE Symposium …, 2021 - onepetro.org
Qualification of tubular connections is an important task in well completion design for
thermal wells, which experience peak temperatures of 180° C to 350° C, as well as high …