Description:
Drift is a simple and popular tool drifting ID 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 of casing are available in two types:
Sub type Drift mechined with threads on both top and bottom ends, the top end is connected with drilling string, 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.
Bail type Casing Drift Specification:
Pipe type |
Specification
(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 |
<=2 7/8" >=3 1/2" | 1067,1067 | d-2.38, d-3.18 |