C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 28/02 (2006.01) C04B 24/14 (2006.01) C04B 38/10 (2006.01) C09K 8/46 (2006.01) C09K 8/70 (2006.01) E21B 33/13 (2006.01)
Patent
CA 2426656
The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
La présente invention concerne des laitiers de ciment de forage expansés, des additifs et des procédés améliorés. Les laitiers de ciment de forage expansés de l'invention comprennent essentiellement un ciment hydraulique, assez d'eau pour former un laitier pompable, assez de gaz pour former une mousse et une quantité efficace d'un additif d'expansion de laitier composé de kératine hydrolysée.
Brenneis Chad R.
Chatterji Jiten
Cromwell Roger S.
Gray Dennis W.
King Bobby J.
Halliburton Energy Services Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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