Closed-loop circulation drilling

One of our main company’s portfolio is to expand the market of innovative drilling technologies such as scope of closed loop circulation drilling techniques in Russia and CIS. “GNS” Ltd. is the exclusive representative of one of the world leaders in this area – Air Drilling Associates Inc. (ADA) Company ( At the same time GNS staff includes local Russian personnel experienced in these technologies through previous working history in Western companies.

Closed-loop circulation drilling techniques include the following main areas:

Managed Pressure Drilling

Underbalance Drilling

Air / Mist / Foam Drilling