Patent ID: 11970659
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 13:
14. A consolidated sand structure composition, the composition comprising previously unconsolidated sand interlinked by inter-particle cementitious bonds comprising deposited calcium carbonate crystals formed at a temperature in a range of from 70° C. to 100° C. in the presence of a treatment solution comprising a mixture of urea, urease, a calcium ion source, one or more polysaccharides, a casein protein, a protease, an ionic compound, and a sugar in an aqueous solution,
where the consolidated sand has a structural strength;
where the consolidated sand structure is porous to permit fluid flow through the composition; and
where the deposited calcium carbonate crystals have a size in a range from 2 to 6 μm.