SUBSTRUCTURES

SUBSTRUCTURES

The skid mounted substructure,with ship-shaped structure at the bottom for convenient pullingTrailer mounted substructure with walking wheels can be moved integrally by trailer.Piled box substructure,high in the front section and low in the rear section,can be assembled in partition.

Box-on-box substructure is combined by multiple-lift box structures,forming a substructure which hasdifferent heights.The equipment on drill floor can be installed in high position.Sling-shot substructure,the drillfloor and the equipment on the drill floor can be installed in low position. The mastcan be raised when the drillfloor is in its low position and then the dril floor and mast can be raised integrally.Swing-lift substructure,the drill floor and the equipment on the drill floor can be installed in low position. Themast support legs can be assembled in low position and the mast will be raised after drill floor being raised.