DRILLING FLUIDS WITH NANO AND GRANULAR PARTICLES AND THEIR USE FOR WELLBORE STRENGTHENING
- Application ID: EP13816096
- Status: █ GRANT OF PATENT INTENDED
This EP application has the IPC combination C09 (DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR) and E21 (EARTH OR ROCK DRILLING; MINING). We found, that Hoffmann Eitle PartmbB, Murgitroyd & Company, Beck Greener, Etudes & Productions Schlumberger, A.A. Thornton & Co. and 3 others are specialized in this combination either. For a similar patent, they might be a good choice.