METHOD FOR MAKING PARTICULATE SLURRIES AND PARTICULATE SLURRY COMPOSITIONS

• US 20100197526A1
• Filed: 04/13/2010
• Published: 08/05/2010
• Est. Priority Date: 05/02/2005
• Status: Active Grant

• Current Assignee: Trican Well Service Limited
• Original Assignee: Trican Well Service Limited
• Inventors: Zhang, Kewei
• Granted Patent: US 9,714,371 B2
• Time in Patent Office: Days
• US Class Current: 507/105
• CPC Class Codes: C09K 8/035 Organic additives
• CPC Class Codes: C09K 8/18 characterised by the organic compounds
• CPC Class Codes: C09K 8/24 Polymers
• CPC Class Codes: C09K 8/665 containing inorganic compounds proppants C09K8/80
• CPC Class Codes: C09K 8/68 containing organic compounds
• CPC Class Codes: C09K 8/70 characterised by their form or by the form of their components, e.g. foams
• CPC Class Codes: C09K 8/80 Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
• CPC Class Codes: C09K 8/805 Coated proppants
• CPC Class Codes: C09K 8/86 containing organic compounds
• CPC Class Codes: C09K 8/92 characterised by their form or by the form of their components, e.g. encapsulated material C09K8/70 takes precedence
• CPC Class Codes: E21B 43/2607 Surface equipment specially adapted for fracturing operations
• CPC Class Codes: E21B 43/267 reinforcing fractures by propping
• CPC Class Codes: F17D 1/17 by mixing with another liquid , i.e. diluting

Abstract

An aqueous slurry composition for use in industries such as the petroleum and pipeline industries includes a particulate, an aqueous liquid and a chemical compound that renders the particulate surface extremely hydrophobic. The slurry is produced by rendering the surface of the particulate extremely hydrophobic during or before making the slurry.

Claims

1. An aqueous slurry composition, comprising:

(a) water;

(b) particulates ranging in size from about 10 to about 100 US mesh; and

(c) a chemical compound for rendering the surface of the particulates extremely hydrophobic,

wherein the chemical compound is selected from the group consisting of organo-siloxanes modified with organic cationic groups, organo-siloxanes modified with organic amphoteric groups, fluoro-organosilanes, fluoro-organosiloxanes, quaternary silanes, fluoro-compounds and combinations thereof.