Pipes

CEW™ Extended Wear Drill Pipe

Contact our engineering team for technical data sheets, sizing and a commercial offer tailored to your project.

CEW™ (Extended Wear) drill pipe reinforces the high-wear areas of the tube to extend service life and lower the total cost of ownership with fewer maintenance needs. Designed for the toughest horizontal drilling environments, it improves weight transfer to the bit to increase rate of penetration (ROP) and helps minimize buckling, drag and friction. Combined with the CET® high-torque connection it delivers superior drilling efficiency.

Key benefits

Durability: strengthened high-wear areas minimize fatigue and extend service life
Lower cost of ownership: longer life reduces replacement frequency
Drilling efficiency: improved energy transfer to the bit increases ROP
Reduced downtime: greater wear resistance means fewer interruptions

Sizes and make-up torque

Connection	Nominal tube size	Nominal wall thickness	Center wear pad OD	Center wear pad wall thickness	Tool joint OD	Tool joint ID	Recommended make-up torque
CET®39	4” 14.0# / 4” 15.7#	.330” / .380”	4 3/8”	.518” / .568”	4 7/8”	2 11/16”	22,200 ft.lbs
CET®43	4 1/2” 16.6# / 4 1/2” 20.0#	.337” / .430”	4 7/8”	.525” / .618”	5 3/8”	3”	31,700 ft.lbs
CET®45	5” 19.5# / 5” 25.6#	.362” / .500”	5 3/8”	.550” / .688”	5 7/8”	3 1/4”	42,800 ft.lbs
CET®50	5” 19.5# / 5” 25.6#	.362” / .500”	5 3/8”	.550” / .688”	6 5/8”	3 3/4”	48,400 ft.lbs
CET®54	5 1/2” 21.9# / 5 1/2” 24.7#	.361” / .415”	5 7/8”	.549” / .603”	6 5/8”	4”	52,600 ft.lbs

Standard CET® tool joint lengths: 13" pin × 16" box. Standard center wear pad length: 30". Standard grades: G-105 to V-150 (105–150 ksi minimum yield); other grades on request. Longmar supplies CEW™ drill pipe strings for extended-reach and horizontal wells.