C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/32 (2006.01) C08F 212/08 (2006.01) C08F 220/18 (2006.01) E21B 21/00 (2006.01) E21B 33/138 (2006.01) E21B 37/06 (2006.01)
Patent
CA 2376585
An oil based drilling fluid comprising oil, a fluid loss additive and a rheology modification agent, optionally water, optionally at least one surfactant and optionally a weighting agent characterised in that the fluid loss additive is a polymer which is formed from a monomer blend comprising, i) 50 to 90% by weight styrene, ii) 10 to 50% by weight C10-20 alkyl (meth)acrylate iii) 0 to 10% by weight (meth)acrylic acid.
La présente invention concerne un fluide de forage à base d'huile contenant de l'huile, un réducteur de filtrat et un agent rhéologique de modification, éventuellement de l'eau, éventuellement au moins un tensioactif et éventuellement un produit alourdissant, caractérisé en ce que le réducteur de filtrat est un polymère formé à partir d'un mélange de monomères contenant: a) entre 50 et 90 % en poids de styrène, b) entre 10 et 50 % en poids de C¿10-20? alkyl(méth)acrylate, et c) entre 0 et 10 % en poids d'acide (méth)acrylique.
Dungworth Howard Roger
Hey Susan Margaret
Ciba Specialty Chemicals Water Treatments Limited
Fetherstonhaugh & Co.
LandOfFree
Oil based drilling fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oil based drilling fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil based drilling fluid will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1947995