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Review API connection Vs Premium By Hendra Wisanggeni.

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Presentation on theme: "Review API connection Vs Premium By Hendra Wisanggeni."— Presentation transcript:

1 Review API connection Vs Premium By Hendra Wisanggeni

2 OCTG Connections new nomenclature ISO 11960:2004/API Std. 5B Propritary connectionsconnections Tubing EUTubing MTC NUIJ IJ MIJ CasingSTCCasingMTC LCSLHP BCIFJ XC MIJ

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

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

5 API 8Round Short Thread J values ODppfShort thread J values 4 ½”9.50 1.125” 5”11.500.750” 7”17.001.250” 8 5/8”24.000.875” 10 ¾”32.751.250” Other labels0.500” Short round thread J value

6 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”) Triangle stamp for OD 16” to 20”

7 API Round thread 30° Fx Fn 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 PIN BOX Torque Shoulder Metal to Metal Seal Thread Form

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

12 Typical Premium Connection T&C

13 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 Premium connections advantages

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

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