Nonmetallic seals that are exposed to retained fluids shall undergo the design validation procedure described in API 6A Annex F.1.13.

To meet with the Thermochemical Performance of Seal Materials required by API 6A Annex F, a variety of JST compounds including HNBR, FKM, PTFE, PEEK compounds are successfully certified by third party Alpine Polytech.

Sour Gas Immersion FF/HH:

Gas Phase:

35% by volume-FF/HH: 10% H2S/ 80% CO2/ 10% CH4

Hydrocarbon: 60% by volume-Kerosene

Water: 5% by volume-Water

Passed NORSOK M710 and ISO 23936-2 based on API 6A Annex F (FF/HH)

Sour Gas Immersion DD/EE:

Gas Phase:

35% by volume-DD/EE: 10% H2S/ 5% CO2/ 85% CH4

Hydrocarbon: 60% by volume-Kerosene

Water: 5% by volume-Water

Passed NORSOK M710 and ISO 23936-2 based on API 6A Annex F (DD/EE)

Rapid Gas Decompression

Passed NORSOK M710 and ISO 23936-2