NON-MAGNETIC DRILL COLLAR

4.750” NC38 FLEXI COLLAR

NON-MAGNETIC DRILL COLLAR 4.750” NC38 FLEXI COLLAR

Specification

OEM Schoeller Bleckmann

Country of Origin Austria

Nominal OD 4 ¾” (4.750”)

Nominal ID 2 11/16” (2.685”)

Material Grade P530

Grain Size 3-5 ASTM

Magnetic Permeability 1.001 max.

Drift Size 2 9/16” (2.5625)

Hardbanding

IPC None

Chemical Properties Phosphorus <0.05% Sulphur <0.030%

Average Weight Per Joint

Manufacturing Criteria API Spec 7-1

Drill Collar Capacities

Tensile Strength 130.5 KSI 120 KSI Min

Yield Strength 121.4 KSI 110 KSI Min

Impact Strength 171 lb/ft Charpy V Notch

Hardness (Brinell) 311-321 BHN

The information on this specification sheet is provided for illustration purposes only and is taken from information available from the

manufacturer and other public sources. Saltire Energy Limited accepts no responsibility or liability for the accuracy of the information provided or for any error, omission or misstatement.

Tool Joint / Connection Specifications

Connection NC38 OD 4 ¾” (4.750”) ID 2 11/16” (2.6875”) Adjusted Weight Average Length 31.00 ft Tensile Strength 587,300 lbs Torsional Strength 18,100 lb/ft Recommended Make Up Torque 9,700 lb/ft Maximum Make Up Torque Elongation 18% Fluid Displacement Fluid Capacity 0.360 gal/ft Elevator Recess n/a Slip Recess n/a Inspection Criteria NS-2