Patent ID: 11898084
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 17:
18. The composition of claim 17, wherein the water-based fluid comprises a sodium bromide brine, and comprises the biopolymeric viscosifier at between about 0.05 to about 2 lbs./bbl. of the brine; the fluid loss control additive at between about 0.1 to about 7 lbs./bbl. of the brine; the polycation at between about 0.1 to about 5 lbs/bbl. of the brine; the anionic surfactant at between about 0.1 to about 5 lbs./bbl. of the brine; the solid densifier at between about 0.1 to about 10 lbs./bbl of the brine; and the synthetic layered magnesium silicate at between about 0.1 to about 10 lbs./bbl. of the brine, wherein the modified well fluid composition has a density between about 8 to about 22 lbs./gal.