Oscar M. Contreras

Review of Lost Circulation Materials and Treatments with an Updated Classification

Mortadha Alsaba, Geir Hareland, Runar Nygaard, 2014 .

Effect on Fracture Pressure by Adding Iron-Based and Calcium-Based Nanoparticles to a Nonaqueous Drilling Fluid for Permeable Formations

Oscar M. Contreras, G. Hareland, M. Alsaba, 2016 .

Application of In-House Prepared Nanoparticles as Filtration Control Additive to Reduce Formation Damage

Mortadha Alsaba, Geir Hareland, Runar Nygaard, 2014 .

METHODOLOGY TO CALCULATE THE FRACTURE GRADIENT IN A TECTONICALLY ACTIVE ZONE: AN APPLICATION IN COLOMBIAN FOOTHILLS

Oscar M. Contreras, N. Saavedra, Z. Calderón, 2009 .

Experimental Investigation on Wellbore Strengthening In Shales by Means of Nanoparticle-Based Drilling Fluids

Oscar M. Contreras, G. Hareland, M. Alsaba, 2014 .

Wellbore Strengthening In Sandstones by Means of Nanoparticle-Based Drilling Fluids

Oscar M. Contreras, G. Hareland, M. Alsaba, 2014 .