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TECHNICAL SPECIFICATION FOR 9-1/2” OD SPIRAL DRILLCOLLARS WITH 7-5/8” REG CONNECTIONS.


SPECIFICATIONS

SIZE: 9-1/2” OD x 31’
NOMINAL WEIGHT: 216 LB/FT
MATERIAL: 4145 H MOD
CONNECTION: 4-5/8” REG SRG & BB
NOMINAL ID: 3” ID
ELEVATOR GROOVE: OD 8-5/8”
SLIP GROOVE OD: 9”
HARDBANDING: CUSTOMER REQUIREMENTS (TBA)

MECHANICAL PROPERTIES

ULTIMATE TENSILE STRENGTH (UTS) PSI: 135,000 to 140,000
YIELD STRENGTH (YS) Psi :100,000 to 110,000

HARDNESS (BRINELL) HB: 285 – 341
(one inch below surface)

MAKE UP TORQUE

7-5/8” REG: 89,630 ft/lbs

DSNS-SD-41 Rev 01