Hydraulical drilling stages with pilot drilling



Stage I: Pushing in the pilot with teleoptical steering

Hydraulical drilling stages with pilot drilling


Stage II: Drilling with helix and pushing in steel covering pipe (light and middle solid soils)

Hydraulical drilling stages with pilot drilling


Stage II: Drilling with knifes and pushing in steel covering pipe (solid soils)

Hydraulical drilling stages with pilot drilling


Stage III: Pushing in instaltion piping and pushing out steel covering piping

Hydraulical drilling stages with pilot drilling