Injection for sampling heavy oil
US9581020B2 · kind B2 · utility
1Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2013 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Oct 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool is conveyed within a borehole extending into a subterranean formation. A void is created in a sidewall of the borehole by extending a rotating member from the downhole tool into the sidewall. A portion of the sidewall surrounding the void is mechanically compressed, and the viscosity of hydrocarbons in the subterranean formation proximate the void is reduced by injecting a fluid from the downhole tool into the formation via the void. Fluid comprising the reduced viscosity hydrocarbons and the injected fluid may then be drawn from the subterranean formation into the downhole tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.