About

Siem WIS AS is a Norwegian Oil Service Company located at Sotra. Siem WIS has developed and commercialized new unique drilling technology for Underbalanced Operations (UBO) and Managed Pressure Drilling (MPD). All our equipment is produced locally around Sotra.

With our technology, challenging reservoirs such as HPHT (High Pressure High Temperature) and ERD (Extended Reach Drilling) wells, will be drilled with better control of your first barrier.

These services are increasing due to global challenges with depleted reservoirs, drilling of additional and infield wells, and the demand to achieve a more constant well pressure during drilling and tripping operations.