hrvatski

Matematički kriterij za dubinu razdjelnice "isplaka-cementna kaša" u alatkama kod izgrađivanja cementnih mostova u bušotinama

The article is dealing with tehnical problems influencing exactitude of setting cement bridges in deep wells. Mathematical relations treating the stability of different fluid columns (mud, cement slurry and water) inside and outsidethe string have been provedby successful jobs on tenths of wells. The application of mathematical formulae, checked by the author in practical use, makes possible an exact setting of goodquality cement bridges in oil wells if some adjustments to technical requirements respecting actual stability conditions and other circumstances existing in the borehole are achieved.

Dubina razdjelnice; Cementna kaša; Cementni mostovi; Matematički kriteriji

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