C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/62 (2006.01) C09K 8/035 (2006.01) C09K 8/12 (2006.01)
Patent
CA 2450277
The present invention relates to methods and compositions for increasing the effective temperature range for viscosified fluids, including particularly fluids that have been viscosified by the addition of a synthetic polymer. In one embodiment, the present invention relates to a method for increasing the effective temperature range for a synthetic polymer-viscosified fluid used as a well fluid, which includes adding a miscible tertiary, secondary, and/or primary amine compound into a polymer solution. In another embodiment, the present invention relates to a thermally stable well fluid, which includes a synthetic polymer, a solvent, and a tertiary, secondary, and/or primary amine miscible in the solvent.
L'invention concerne des procédés et des compositions pour augmenter la résistance à une plage de températures effectives de fluides rendus visqueux, tels que, entre autres, des fluides rendus visqueux par l'addition d'un polymère synthétique. Dans un mode de réalisation, l'invention concerne un procédé pour l'augmentation de la résistance à une plage de températures effectives pour un fluide rendu visqueux au moyen d'un polymère synthétique, procédé qui consiste à ajouter un composé amine primaire miscible primaire, secondaire et/ou tertiaire dans une solution polymère. Dans un autre mode de réalisation, l'invention concerne une boue de forage stable à la chaleur, comprenant un polymère synthétique, un solvant et une amine primaire, secondaire ou tertiaire miscible dans le solvant.
Foxenberg William E.
Horton Robert L.
Kippie David P.
Borden Ladner Gervais Llp
M-I L.l.c.
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