BIG EASY (ZJ50DB) is a kind of drilling rig developed by SJ and USA LOADMASTER Co. with new-generation AC frequency conversion driver conception. It adopts particular block construction. It is convenient for moving and installation. It is internationally advanced type of drilling rig.
Chief specialty:
1.Drawwoks, chassis, support, mast, drive skid, and other components are trailer-mounted modular, assembled on oilfield.
2.Chassis construction is parallelogram. When transferred its construction is pincher whit small occupy space.
3.Mast is three-section, lifted by hydraulic cylinder. Its lower section is pin connection, while mid section and upper section are mechanical telescoping.
Technical indication:
| Drilling depth |
5000m(4-1/2"DP) |
Max. load, hook |
350 |
| Traveling system |
6X7 |
Diameter, wearline (mm) |
Ø35 |
| Driving type |
AC-SCR-DC |
Power, drawworks |
1500 |
| Height, mast (m) |
41.5 |
Model, rotary table |
27 -1/2" |
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