C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 73/02 (2006.01) C08G 65/325 (2006.01)
Patent
CA 2600156
A wellbore fluid having at least two phases, including a fluid phase and a solid phase. The solid phase is a powdered solid material coated with a polymer that is the reaction product of a polyether amine and a dialdehyde crosslinking agent. Preferably the polyether amine is a diamine and more preferably the compound acts as a shale hydration inhibitor. The dialdehyde crosslinking agent reacts with the polyether amine compound and forms the polymeric material coating the solid. The polymer is substantially solubilized when the pH of the fluid has a value of less than about 7.
L'invention porte sur un fluide de forage présentant au moins deux phases, l'une liquide et l'autre solide. La phase solide consiste en un matériau en poudre revêtu d'un polymère, produit de réaction d'amine polyéther et d'un agent réticulant de dialdéhyde. L'amine polyéther est de préférence une diamine ou mieux, un composé agissant comme un inhibiteur d'hydratation des schistes argileux. L'agent réticulant réagit avec le composé d'amine polyéther pour former un matériau polymère enrobant les solides. Le polymère se solubilise quasiment lorsque le pH du fluide est inférieur à environ 7.
Finlayson & Singlehurst
M-I L.l.c.
LandOfFree
Polymer coated bridging solids and weighting agents for use... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymer coated bridging solids and weighting agents for use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer coated bridging solids and weighting agents for use... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1933669