Drift

  • Designed and manufactured according to API spec 5CT and 5DP.
  • Three types: tubing drift, casing drift and drill pipe drift.
  • Clean the inside of the pipes.
  • Test the diameter of downhole tubular.

Description

Drift

Drift is a simple and popular tool for drifting I.D. of casing, tubing, drill pipe and other pipes. It is used to check whether inside diameter of all kinds of pipes are complied with standard, and to determine the max. inside diameter to be drifted after deformed. The drift is thus granted as necessary tool in workover operation.

Drift for casing are available in two types:
Sub Type Drift machined with threads on both top and bottom ends, the top end is connected with drillstring, the bottom end is standby.
Bail type Drift is composited of gauge plate and connecting rod.
Double Bail Drift for tubing or drill pipe is usually used on the ground. The shape of drift diameter gauge is a long cylindrical body with sucker rod thread on both ends to be connected with sucker rod, the drifting is made manually.

Specifications – Sub Type Drift

Casing drift(in) 4 1/2 5 5 1/2 5 3/4 6 5/8 7
O.D.(mm) 92-95 102-107 114-118 119-128 136-148 146-158
Length(mm) 500 500 500 500 500 500
Up connection NC26
2 3/8TBG
NC26
2 7/8TBG
NC31
2 7/8TBG
NC31
2 7/8TBG
NC31
2 7/8TBG
NC38
3 1/2TBG
Down connection NC26
2 3/8TBG
NC26
2 7/8TBG
NC31
2 7/8TBG
NC31
2 7/8TBG
NC31
2 7/8TBG
NC38
3 1/2TBG

 

Specifications – Double Bail Drift

Tubing size(in) 1 1/2 2 2 1/2 3 3 1/2 4
O.D.(mm) 38 48 59 73 84 95
Length(mm) 500 500 500 500 600 600

 

Specifications – Bail Type Casing Drift

Pipe Model Specifications(in) Drift size
Length (mm) Min.diameter (mm)
Casing <=8 5/8 9 1/8~13 3/8 >=16 150 , 305 , 305 d-3.18 d-3.97 d-4.76
Tubing <=2 7/8 >=3 1/2 1067 , 1067 d-2.38 d-3.18

 

 

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