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Oil casing is a large diameter pipe that serves as the tructural retainer,it can protect both subsurface and well bore from collapsing and to allow drilling fluid to circulate and extraction.

Material:J55,K55,L80,N80,P110

Size: 2-1/2" ,4 1/2",5 1/2",6 5/8",7" ,9 5/8" to 20"  / Outside Diameter 60mm to 508 mm 

Wall thickness:4-16mm

Length: R1(4.88m-7.62m)/R2(7.62m-10.36m)/R3(10.36m-14.63) 

coupling:  BTC (Buttress Thread Coupling),

                  STC (Stub(Short) Thread Connector),

                  LTC (Long Thread Connector)

                  NUE/EUE/VAM or no thread  

Standard:API spec 5CT

Certificates:API5L, ISO 9001:2008,SGS, BV,CCIC

Surface Treatment:External surface coating (black painted), mark as api 5ct stanard,varnish, oil

Contact:Bonnie Xu

Email:BonneXu@dlpoctg.com

Mob/Wechat:86+13602055205

SKYPE:BonnieXu22

Linkedin:BonnieXu