In the process of high flow rate fracture and high gas production, the sealing performance of
the premium connection decreases due to the dynamic load and vibration of downhole …

Hydraulic fracturing as a means to stimulate production has become an effective way to
extract oil and gas from low-porosity, low-permeability, hydrocarbon-bearing formations. The …

The deep-water pipeline connector (DPC) is a key piece of equipment for the connection of
multiple facilities located in different positions of the subsea production system. Its sealing …

Great difficulties have been encountered in the study of the seal failure of casing connection.
The in situ microscopic seal surfaces under complex loads are hard to be obtained due to …

The present research studies about sealability of premium connection almost focus on
qualitative description by sealing contact stress distribution, which is not convenient for …

High Pressure and High Temperature (HPHT) conditions, with pressures greater than 69
MPa and temperatures greater than 150 C, pose significant challenges for well tubular …

One of the significant challenges in oil wells is to maintain adequate structural and sealing
capacities of casing and tubing connections. In particular, unconventional wells, such as …

针对油套管特殊螺纹球面对锥面密封结构, 基于Hertz 接触力学理论和密封接触能机理,
建立了考虑密封面作用扭矩的特殊螺纹气密封压力计算理论模型, 研究了球面半径 …

Traditional static analysis cannot effectively explain the issue of the sealing performance of
the premium connection being decreased due to the vibration of the tubing, leading to the …