• January 30. 2026

In oil and gas wellhead systems, sealing reliability is critical for maintaining pressure integrity and ensuring long-term well safety. Among various sealing solutions, wellhead P seals are widely used as static seals in casing heads and casing spools, especially where large tolerances and rough casing surfaces are present.   So what exactly is a wellhead P seal, and why is it commonly specif...

• May 13. 2026

Metal End Cap Seals (MEC seals) are specialized, hybrid sealing solutions designed specifically for the extreme conditions found in wellhead, casing, and tubing applications. They combine the sealing flexibility of elastomers with the mechanical strength of metal to prevent seal failure in High Pressure, High Temperature (HPHT) and Low Pressure, Low Temperature(LPLT) environments.   Core Desi...

• May 27. 2026

In hydraulic sealing systems, PolyPak seals and U-cup seals are both widely used for rod and piston sealing applications. Because their designs appear similar, many users assume they perform the same function. However, there are important differences in structure, sealing behavior, pressure capability, and application suitability.   So how do PolyPak seals compare to standard U-cup seals, and...

• July 15. 2026

In oil and gas wellhead systems, selecting the correct sealing solution is essential for maintaining pressure integrity and long-term operational safety. Two sealing products commonly used in casing heads and tubing heads are the FS Seal and the P Seal. Although both are designed for static sealing in wellhead equipment, they are engineered for different sealing conditions and installation require...

• July 29. 2026

Selecting the right casing hanger seal is an important part of designing or maintaining an oil and gas wellhead. The seal must maintain pressure integrity between the casing and wellhead components while accommodating the actual dimensions, surface condition, pressure, temperature, and well fluids involved.   A seal that matches the nominal casing size may not necessarily be the right choice....