Methods for controlling migration of particulates in a subterranean formation
US7204311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Aug 4, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/68
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method of treating a portion of a subterranean formation comprising: placing a pre-pad fluid into a portion of a subterranean formation wherein the pre-pad fluid comprises a low-viscosity aqueous tackifying composition that comprises an aqueous tackifier compound and an aqueous fluid; placing a fracturing fluid into the portion of the subterranean formation at a pressure sufficient to create or extend at least one fracture therein; and, activating the aqueous tackifier compound with an activator so as to consolidate the unconsolidated particulates. Method of consolidating unconsolidated particulates within a portion of a subterranean formation comprising: placing a foamed low-viscosity aqueous tackifying composition into a portion of a subterranean formation comprising unconsolidated particulates wherein the aqueous tackifying composition comprises an aqueous fluid, a foaming agent, and an aqueous tackifier compound; and, activating the aqueous tackifier compound with an activator so as to consolidate the unconsolidated particulates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.