Seamless Steel Casing Pipe

API 5CT seamless steel casing and tubing pipe for kinds of demands in oil exploration and production. Casing pipe section shape is round, in big diameter pipe and put it into the oil well, fixed by the cement, to protect other equipment which mostly made of iron and steel. Oil well shall be designed to bear the different strength of external power, as crush, explode, stress and chemical corruption. During the well drilling process, put casing into the well bore, it will stabilize the well bore perfectly.
  we supply API 5CT seamless steel casing pipe in below specifications and sizes
  API 5CT seamless casing pipe for drilling pipeline 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″  / OD 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/ ISO11960
  Certificates:API5L, ISO 9001:2008,SGS, BV,CCIC
  Surface Treatment:External surface coating (black painted), mark as api 5ct stanard,varnish, oil
  Package&Delivery
  Small size  bundles with steel strips, big size in bulk, with plastic cap to protect thread ends, seaworthy packaging;
  we have rigorous quality control system ,it includes:
  Chemical composition and mechanical
  Thread inspection
  Hydro static test.
  Pipes are rolled onto a hydro static testing machine where water is pumped into the pipes to ensure that the pipes can withstand the requisite internal  pressure and to confirm that there is no leakage.? Drifting test.
  to inspect the straightness of the pipes and to determine if any protrusions exist along the inner walls
  Hardness and pressure test.  to ensure that the pipes can withstand the requisite external pressure and exhibits the required hardness before final coating.
  size and surface test
  to make sure that there are no visible defects and conform to the intended parameters and lengths
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