Product Introduction:
API standard weighted drill pipe
Our weighted drill pipes all meet the requirements of API RP7G, API SPEC 7-1, and NS-1 standards. Heavy drilling rods can withstand both tensile and compressive loads. Connecting it between the drill pipe and the drill collar can prevent sudden changes in the cross-sectional modulus of the drill string and reduce fatigue damage to the drill pipe. It can replace some drill collars, reduce lifting load, and increase the drilling depth capacity of the drilling rig.
Main technical parameters:
Specification: All sizes from 2-7/8 "to 6-5/8", including 57/8“
Type: integral, welded
Execution standards: API Spec 7-1, API Spec 7-2, API RP7G, DS-1 and NS-1
Technical parameters:
specifications | Tube body | joint |
Inner and outer diameters of the pipe body | Thickened size | Thread Type | outside diameter | inside diameter | Chamfering diameter |
OD(mm) | ID(mm) | intemal(mm) | ends(mm) | RSC type | (mm) | (mm) | (mm) |
3-1/2 | 88.9 | 52.4 | 101.6 | 98.4 | NC38 | 127 | 52.4 | 116.3 |
3-1/2 | 88.9 | 57.2 | 101.6 | 98.4 | NC38 | 127 | 57.2 | 116.3 |
4 | 101.6 | 65.1 | 114.3 | 106.4 | NC40 | 133.4 | 65.1 | 127.4 |
4-1/2 | 114.3 | 69.9 | 127 | 119.1 | NC46 | 158.8 | 69.9 | 145.3 |
5 | 127 | 76.2 | 139.7 | 130.2 | NC50 | 168.3 | 76.2 | 154 |
5-1/2 | 139.7 | 71.4 | 152.4 | 144.5 | 5-1/2FH | 184.2 | 71.4 | 170.7 |
6-5/8 | 168.3 | 101.6 | 181 | 176.2 | 6-5/8FH | 203.2 | 101.6 | 195.7 |
