G. A. Okpobiri

Experimental determination of solids friction factors and minimum volumetric requirements in foam and mist drilling and well-cleanout operations. Final report

C. U. Ikoku, G. A. Okpobiri, 1982 .

Minimum volumetric requirements in aerated drilling: a field operations manual

C. U. Ikoku, G. A. Okpobiri, C. J. Machado, 1982 .

Correlating the PVT Properties of Nigerian Crudes

G. A. Okpobiri, D. A. Obomanu, 1987 .

Pressure Transient Behavior of Dilatant Non-Newtonian/ Newtonian Fluid Composite Reservoirs

C. U. Ikoku, G. A. Okpobiri, 1983 .

Volumetric requirements for foam and mist drilling operations

C. U. Ikoku, G. A. Okpobiri, Godwin A. Okpobiri, 1983 .