Injection fluid tuning
US10442979B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 8, 2015 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Oct 1, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/25
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Injection fluid tuning is provided. In one possible implementation, injection fluid can be tuned by accessing both surface properties of rock found in a hydrocarbon reservoir of interest and a chemical composition of oil found in the reservoir of interest. An ion effect on wettability of a contact surface of the rock can be acquired and then used to formulate a tuned ion solution based on the ion effect on wettability of the contact surface of the rock. In another possible implementation, an electrolyte solution has an ionic composition and an ionic concentration configured to enhance recovery of oil from a reservoir. The electrolyte solution includes a content of direct contact ions including monovalent ions with a static polarizability larger than a preset limit sufficient to influence a contact surface of a rock in the reservoir to reach a desired wettability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.