C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 24/00 (2006.01)
Patent
CA 2611136
Provided herein are defoaming agents that comprise lecithin and a solvent. Optionally, they may comprise hydrophobic particles. One embodiment provides a method comprising: providing a well fluid that comprises foam; providing a defoaming agent that comprises lecithin and a solvent; and contacting the well fluid with the defoaming agent so that the amount of foam present in the well fluid is reduced.
L'invention concerne des additifs antimousse comprenant de la lécithine et un solvant. Facultativement, lesdits additifs antimousse peuvent comprendre des particules hydrophobes. Dans un mode de réalisation, l'invention porte sur un procédé qui consiste à: former un fluide de puits comprenant une mousse; former un additif antimousse comprenant de la lécithine et un solvant; et mettre en contact le fluide de puits avec l'additif antimousse de manière à réduire la quantité de mousse présente dans le fluide de puits.
Lewis Samuel J.
Szymanski Michael J.
Waugh Bryan K.
Wilson J. Michael
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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