Core Drilling on Minnesota Lake

Franconia Minerals used a 30' x 85' Series S-50 Flexifloat assembly for their core drilling machinery while performing a soils investigation on Birch Lake in Minnesota. A skid-mounted rig was centrally located on the barge and drilled through a 5' x 10' moon pool configured into the barge assembly. Four 40-foot-long spuds operated by two diesel-driven double drum winches anchored the platform at multiple locations on the lake.