Heavy Weight Drill Pipe
Heavy Weight Drill PipeHeavy Weight Drill Pipe (short for HWDP) is also called Heavy Wall Drill Pipe. It is an intermediate weight drill stem component which is used in conjunction with the drill pipe and drill collars. The characteristics of heavy weight drill pipe is to be like the same drill collar under pressure. A unique characteristic of the drill pipe is that the middle part of the drill pipe is provided with a hard banding. The hard banding can play the role of stabilizer, improve the heavy weight drill pipe on drill string stiffness, reducing well oblique. In some applications, Heavy- Weight Drill Pipe also can be used instead of the Drill Collar.Material: AISI 4145H Mod.Type: standard, spiral and non-magneticStandard: API, NS-1Length: 9150--9450 mmHard Banding and Inner Coating could be provided as per the customers’ requirements.Please specify when ordering:Size, Type, Quantity, Connection, Hard Banding, etc.Technical Parameters--Heavy Weight Drill PipeSize(in)O.D. (in) I.D. (in) Tool Joint O.D. (in)Tool Joint I.D. (in) Connection Max elevator diameter (in)Central upset dia. (in)Min.drift dia.size (in) 3 1/23 1/2 2 1/4 4 3/4 (4 7/8,5)2 1/4NC38 3 7/8 4 2 2 1/16 2 1/16 1 13/16 4 4 2 1/25 1/42 1/2NC40 4 3/16 4 1/22 1/4 2 9/16 2 9/16 2 5/16 4 1/2 4 1/2 2 11/16 6 1/4 2 11/16 NC464 11/16 5 2 7/16 2 3/42 3/4 2 1/2 2 13/16 2 13/16 2 9/16 5 5 3 6 5/8 3NC55 1/8 5 1/2 2 3/4 5 1/25 1/2 3 1/4 7 (7 1/4,7 1/2) 3 1/45 1/2 FH 5 11/16 6 33 3/83 3/8 3 1/83 7/8 3 7/8 3 5/844 3 3/46 5/8 6 5/8 4 8 (8 1/4,8 1/2) 4 6 5/8 FH6 15/16 7 1/8 3 3/4 4 1/2 4 1/2 4 1/4 5 5 4 3/4 If you have any further requirements, please feel free to contact us
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