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Hilong - Model HLDT-GS®Series -Gas Sealed Connection
HLDT-GS® can be used in Drill Stem Testing (DST) operations, hydraulic fracturing, well completion, and underbalanced drilling with high metal-to-metal internal seal performance under gas pressure loading. Compared to the traditional single-function drill string, using HLDT-GS® drill string can save time and reduce cost.
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Compared to API connections, HLDT-GS® has the following features:
- The use of a double-shouldered compound sealing structure allows the smooth transition of inner diameter, and smooth metal surface elastic interference fit achieves metal-to-metal seal.
- Seal integrity is not affected by tensile load and multiple drilling trips.
HLDT-GS®26, HLDT-GS®31, HLDT-GS®38, HLDT-GS®40, HLDT-GS®46, HLDT-GS®50, HLDT-GS®55 and HLDT-GS®65, the sealing structure can be applied to API Spec 7-2 and non-API rotary shouldered connections.
Superior sealing performance with gas sealing capacity up to 15000 PSI (105MPa).