Johan Eck-Olsen

Managing pressures during underbalanced cementing by chok ing the return flow; innovative design and operational modeling as well as operational lessons

Rolv Rommetveit, Knut Steinar Bjorkevoll, Johan Eck-Olsen, 2005 .

Managed-Pressure Drilling: What It Is and What It Is Not

Don Reitsma, George Medley, Helio Santos, 2009 .