Sealant compositions for use in subterranean formation operations
US9969923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2013 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Oct 30, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Embodiments herein include methods comprising providing a sealant composition comprising an aqueous base fluid, a crosslinkable polymer composition, and a density segregation prevention agent, wherein the crosslinkable polymer composition comprises a crosslinkable organic polymer and a crosslinker; introducing a particulate density reducing agent into the sealant composition, wherein the particulate density reducing agent causes the sealant composition to adopt a reduced density as compared to the sealant composition without the particulate density reducing agent, thereby creating a reduced density sealant composition; introducing the reduced density sealant composition into a subterranean formation; and crosslinking the reduced density sealant composition into a gel to form a seal in the subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.