Fluid viscosity control
US9475981B2 · kind B2 · utility
6Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2014 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Jul 14, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of treating a subterranean formation penetrated by a wellbore includes introducing a treatment fluid comprised at least a crosslinkable component, and a metal crosslinker to the subterranean formation, forming a crosslinked treatment fluid, and de-crosslinking bonds of the crosslinked treatment fluid by manipulating a pH of the treatment fluid with a pH triggering agent, wherein the pH triggering agent is an amine-precursor compound or a derivative thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.