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

Claim 0:
1. A method of making a modified well fluid, the method comprising:
combining an amount of a synthetic functionalized additive with an intermediate well fluid composition to form a synthetic functionalized additive-containing well fluid composition; the synthetic functionalized additive comprising a synthetic layered magnesium silicate that is covalently bonded to a functional group, and the intermediate well fluid composition comprising a water-based continuous phase with solid particles, wherein the synthetic functionalized additive increases suspension stability of the solid particles versus a well fluid composition comprising the solid particles without the synthetic functionalized additive,
wherein the intermediate well fluid composition comprises a sodium bromide brine, and comprises a biopolymeric viscosifier at between about 0.05 to about 2 lbs./bbl. of the brine; a fluid loss control additive at between about 0.1 to about 7 lbs./bbl. of the brine; a polycation at between about 0.1 to about 5 lbs/bbl. of the brine; a anionic surfactant at between about 0.1 to about 5 lbs./bbl. of the brine; a solid densifier at between about 0.1 to about 10 lbs./bbl of the brine; a pH additive; and

the synthetic functionalized additive at between about 0.1 to about 10 lbs./bbl. of the brine, and wherein the modified well fluid has a density between about 8 to about 22 lbs./gal.