Umsebenzi we-API 7K Type DU Drill Pipe Slip Drill String
Kukho iintlobo ezintathu ze-DU series Drill Pipe Slips: DU, DUL kunye ne-SDU. Zinoluhlu olukhulu lokuphatha kunye nobunzima obuphantsi. Kuzo, ii-SDU slips zineendawo ezinkulu zokunxibelelana kwi-taper kunye namandla aphezulu okuxhathisa. Zenzelwe kwaye zenziwe ngokwe-API Spec 7K Specification yezixhobo zokubhola kunye nokulungisa imithombo.
Iiparameters zobugcisa
| Imo | Ubungakanani bomzimba we-Slip (ngaphakathi) | |||||
| 4 1/2 | 5 1/2 | 7 | ||||
| I-DP OD | I-DP OD | I-DP OD | ||||
| in | mm | in | mm | in | mm | |
| DU | 2 3/8 | 60.3 | 3 1/2 | 88.9 | 4 1/2 | 114.3 |
| 2 7/8 | 73 | 4 | 101.6 | 5 | 127 | |
| 3 1/2 | 88.9 | 4 1/2 | 114.3 | 5 1/2 | 139.7 | |
| 4 | 101.6 | 5 | 127 | 6 5/8 | 168.3 | |
| 4 1/2 | 114.3 | 5 1/2 | 139.7 | 7 | 177.8 | |
| I-DUL | 2 3/8 | 60.3 | 3 1/2 | 88.9 | 4 1/2 | 114.3 |
| 2 7/8 | 73 | 4 | 101.6 | 5 | 127 | |
| 3 1/2 | 88.9 | 4 1/2 | 114.3 | 5 1/2 | 139.7 | |
| 4 | 101.6 | 5 | 127 | 6 5/8 | 168.3 | |
| 4 1/2 | 114.3 | 5 1/2 | 139.7 | 7 | 177.8 | |
| I-SDU | 3 1/2 | 88.9 | 4 1/2 | 114.3 | ||
| 4 | 101.6 | 5 | 127 | |||
| 4 1/2 | 114.3 | 5 1/2 | 139.7 | |||
| 5 | 127 | 6 5/8 | 168.3 | |||
| 5 1/2 | 139.7 | 7 | 177.8 | |||
Bhala umyalezo wakho apha uze uwuthumele kuthi






