Weight materials for use in cement, spacer and drilling fluids

A drilling fluid, spacer fluid and cementing compositions for use in subterranean wells are disclosed along with methods for making using same, where the compositions include a weighting system having an effective amount of a metal silicon alloy, mixtures of metal silicon alloys, or mixtures of meta...

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Bibliographische Detailangaben
Hauptverfasser: FALANA OLUSEGUN MATTHEW, BRAMBLETT MARILYN J, HERNANDEZ MARIO B, POWELL RON, ZAMORA FRANK, KAKADJIAN SARKIS R
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A drilling fluid, spacer fluid and cementing compositions for use in subterranean wells are disclosed along with methods for making using same, where the compositions include a weighting system having an effective amount of a metal silicon alloy, mixtures of metal silicon alloys, or mixtures of metal silicon alloys and conventional weighting agents, to produce compositions having a desired high density, while retaining other fluid properties such as pumpability, gas tight sealing, low tendency to segregate, and reduced high temperature cement strength retrogression.