Microbubbles for heat and/or gas generation in subterranean formations
US10626321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2015 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Jul 24, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/267
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compositions, systems, and methods for generating heat and/or gas, for example, to create and/or enhance microfractures in low-permeability formations are provided. In certain embodiments, the methods comprise: providing a treatment fluid that comprises a base fluid and a plurality of microbubbles, wherein the microbubbles each comprise at least an outer shell and a heat- and/or gas-generating chemical within the shell, and have a diameter of about 100 microns or less; and introducing the treatment fluid into at least a portion of a subterranean formation. In some embodiments, the microbubbles may enter one or more microfractures in the subterranean formation and release the heat- and/or gas-generating chemical therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.