Crosslinker-coated proppant particulates for use in treatment fluids comprising gelling agents
US9840660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Feb 26, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods including preparing a treatment fluid comprising an aqueous base fluid, a gelling agent, and crosslinker-coated particulates, wherein the crosslinker-coated particulates are formed by at least partially coating a particulate with a stabilizing agent, and at least partially coating the particulate with a first crosslinking agent atop the stabilizing agent, wherein the stabilizing agent imparts a hydrophobic nature to the particulate when the stabilizing agent is at least partially coated onto the particulate; introducing the treatment fluid into a subterranean formation, and reacting the first crosslinking agent with the gelling agent in the treatment fluid so as to crosslink the gelling agent and suspend the crosslinker-coated particulates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.