In Rijswijk, the Netherlands, a Terra Invader 250 has been drilling regularly since the year 2007. The rig, which is installed right next to the Shell Research and Development Center, is used to test new drilling technologies and work processes for exploring oil and gas deposits. This includes testing new top drives or drill pipe materials, as well as developing procedures for the subsequent extension of existing pipelines.

This rig’s location only a few meters from the engineers’ and scientists’ office windows is not the only remarkable thing about it; its technical details are also unusual. Together with Shell’s drilling specialists, Herrenknecht Vertical has developed a test drilling unit which is precisely adapted to the requirements of work in the research center in Rijswijk. The substructure of the drilling platform, for example, is made up of four hydraulic cylinders whose height can be varied by more than 2 meters. In addition, the work platform can be moved laterally so that work can be carried out on three drill holes alternately.

Video: Pull-test on Terra Invader 250

Track record

Project: Rijswijk, Netherlands
Machine type: Terra Invader 250
Drilling depth: 400m
Purpose: Test drills

Operator: Shell International Exploration and Production