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Review API connection Vs Premium

Review API connection Vs Premium. By Hendra Wisanggeni. ISO 11960:2004/API Std. 5B Propritary connections connections Tubing EU Tubing MTC NU IJ IJ MIJ Casing STC Casing MTC LC SLHP

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Review API connection Vs Premium

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  1. Review API connection Vs Premium By HendraWisanggeni

  2. ISO 11960:2004/API Std. 5B Propritary connections connections Tubing EU Tubing MTC NU IJ IJ MIJ Casing STC Casing MTC LC SLHP BC IFJ XC MIJ OCTG Connections new nomenclature

  3. Round thread • Buttress thread • Extreme line API spec 5B • Tenaris Blue family • Antares family • NKK family • SEC • Atlas Bradford Tenaris Family Premium • Boss • HSLA • Multiseal/two step Hunting Intl Casing & Tubing connections classification VAM Family

  4. API Connections Round thread Buttress thread Extreme Line External Upset End

  5. API 8Round Short Thread J values OD ppf Short thread J values 4 ½” 9.50 1.125” 5” 11.50 0.750” 7” 17.00 1.250” 8 5/8” 24.00 0.875” 10 ¾” 32.75 1.250” Other labels 0.500” Short round thread J value

  6. Triangle stamp for OD 16” to 20” Round thread API standard 5B Tubing: EU (1.050” - 4 1/2”) NU (1.050” - 4 1/2”) IJ (1.315” - 2.063”) Casing: STC (4 1/2” - 20”) LC (4 1/2” - 20”)

  7. API Round thread Fn Fx 30° Ft Small helical voids between thread crests and roots

  8. API 8 Round jump-out failure mechanism • Frequent during casing over-pull • Final pin ID lower than original ID • Pin crests deformation • Box crests deformation

  9. API Round thread Advantages/Kelebihan: - Easy to manufacture (mudah diproduksi) - Easy running (mudah dipasang) - Acceptable sealability response at low pressure (mampu sekat/seal untuk tekanan rendah) - Well known (sudah dikenal) Disadvantages/Kelemahan: - Poor tension resistance (ketahanan thd beban tarik lemah) - Poor sealability for medium and high pressure (mampuan sekat/seal untuk tekanan tinggi dan tingi lemah)

  10. Premium Connections - Features Metal to Metal Seal BOX PIN Thread Form Torque Shoulder

  11. Area kritis • gangguan aliran yang menyebabkan turbulence API Turbulence FLUID FLOW Premium streamline FLUID FLOW

  12. Typical Premium Connection T&C

  13. Premium connections advantages • Premium thread form • Tension/Tarik • Compression/Tekan • Bending/Tekuk • Improved seal performance • Metal-to-metal seals • Teflon seals • Multiple seals • Torque shoulders • Torsional strength • Positive makeup position • Stored torque prevents back-off • Repeated make-up without performance degradation • Possible to repair as many as possible, no need total reprocess

  14. Premium connections advantages • Relatively more expenses in term of unit price • Need good support such as running assistance and work shop for repair

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