API 7K Type DU Drill Pipe Slip Drill String Operation
Misy karazany telo ny andiany DU Drill Pipe Slips: DU, DUL ary SDU. Izy ireo dia manana velarana lehibe sy maivana. Ao anatin'izany, ny slips SDU dia manana faritra mifandray lehibe kokoa amin'ny taper sy tanjaky ny fanoherana avo kokoa. Izy ireo dia novolavolaina sy novokarina araka ny API Spec 7K Specification ho an'ny fandavahana sy ny fitaovana serivisy tsara.
Paramètre ara-teknika
Mode | Haben'ny vatana (in) | |||||
4 1/2 | 5 1/2 | 7 | ||||
DP OD | DP OD | 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 | |
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 | |
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 |
Soraty eto ny hafatrao ary alefaso aminay