Lower-cost, higher efficiency, environmentally friendly, self-dispersible recovery, and stimulation fluid for enhanced oil recovery (EOR) and improved oil recovery (IOR)
US12264283B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 15, 2022 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Apr 18, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/58
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A well stimulation method based on a self-dispersible and non-surface functionalized dispersion fluid to recover hydrocarbons from subterranean formation in conventional and non-conventional mode is described and claimed. The method includes introducing a self-dispersible, non-functionalized, three-dimensional (3D) crumpled graphene balls/structures into a water slug, a gas slug, a liquefied gas slug, a natural gas liquid slug, or a diesel slug. The resulting fluid containing self-dispersible, 3D crumpled structures is introduced into the subterranean hydrocarbon bearing formation. The said self-dispersion fluid may also contain a cocktail based on varying degree of hydrophilicity and hydrophobicity of 3D crumpled graphene balls, where the role of 3D hydrophilic crumpled graphene balls is to keep dispersion stable whereas, the role of hydrophobic 3D crumpled graphene balls is to interact with hydrocarbons and thus stimulating their dislodging or desorption from the rocks of subterranean hydrocarbon formation. The recovery fluid containing self-dispersible, non-functionalized stimulating agent is inserted into the underground formation containing hydrocarbons before, during or after…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.