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

Journal Article · Tue Mar 01 04:00:00 EST 1983 · Diss. Abstr. Int. B; (United States)

OSTI ID:5907813

Okpobiri, G A

In order to accurately predict minimum air and liquid volumetric requirements for foam drilling operations, the frictional losses due to the solid phase and the settling velocities of such solids must be taken into account. To adequately account for pressure drop across the bits, an equation which takes the compressibility of foam into consideration is required. Thus, the objectives of this study are as follows: (1) to present a semi-empirical model for predicting frictional losses due to the solid phase in solids-foam slurry flow, (2) to develop a theoretical model for predicting pressure drops across bits for foam, and (3) to utilize these models to predict minimum volumetric requirements for foam drilling operations, taking into consideration the settling velocities of drilled particles.

• OSTI ID: 5907813
• Journal Information: Diss. Abstr. Int. B; (United States), Journal Name: Diss. Abstr. Int. B; (United States) Vol. 43:9; ISSN DABBB
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLING FLUIDS
EQUIPMENT
FLUIDS
FRICTION
MATHEMATICAL MODELS
ROCK DRILLING
WELL DRILLING
WELL SERVICING