Mast,oil drilling,drilling rig
Product information :
K-type mast features
- The mast (derrick) is K-type, namely front opening mast.
- The mast is erected or lowered down integrally by drawworks or self-lifting.
- The mast is assembled at ground level. It makes up of several sections connected with double pins for secured connection rigidity.
- The mast is built of a П shape truss structure, is easy for installation and disassembly and transport.
- Hydraulic cylinder on each sides of the mast provides bumping function while erection and prime upward push while lower down.
- Mast space and height accommodates top-drive unit
- Conforms to API Spec 4F and marked with API monogram.
Specification
| Model | JJ135/31.5-K | JJ225/43-K | JJ315/45-K | JJ450/45-K | JJ585/45-K |
| Max. static load kN | 1350 | 2250 | 3150 | 4500 | 5850 |
| Effective Height m(ft) | 31.5 (104) | 43 (141) | 45 (147) | 45 (147) | 45 (147) |
| Top span
(front x side) M(in) | 1.7×1.7 (67×67) | 2×2 (79×79) | 2.1×2.05 (83×81) | 2.1×2.05 (83×81) | 2.4×2.4 (95×95) |
| Bottom span m(ft) | 6 (20) | 8 (26) | 8 (26) | 9 (30) | 9 (30) |
| Racking platform Height m(ft) | 17.5 (57.4) | 26.5 (87) | 26.5 (87) | 26.5 (87) | 26.5 (87) |
| 16.5 (54.1) | 25.5 (83.7) | 25.5 (83.7) | 25.5 (83.7) | 25.5 (83.7) |
| | 24.5 (80.4) | 24.5 (80.4) | 24.5 (80.4) | 24.5 (80.4) |
| Capacity of racking platform m(ft) | 2000
(6560) | 4000 (13120) | 5000 (16400) | 7000 (22960) | 9200(301840) |
| Wind withstanding capacity | No setback, no hook load km/h (NMPH) | 172 (93) | 172 (93) | 172 (93) | 172 (93) | 172 (93) |
| Full setback, no hook load km/h (nmph) | 130 (70) | 130 (70) | 130 (70) | 130 (70) | 130 (70) |
| Mast erecting or lowering down km/h (nmph) | 30 (16) | 30 (16) | 30 (16) | 30 (16) | 30 (16) |
| Weight kg | 25410 | 53500 | 62194 | 76218 | 98000 |