Methods and systems for sampling heavy oil reservoirs
US7464755B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2006 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Mar 9, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/084
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods and systems and are described for isolating or manipulating a sample of a heavy oil composition from a hydrocarbon reservoir. One method embodiment of the invention comprises circulating a heated fluid in a first region of a reservoir where a heavy oil composition is present or believed present using a surface pump and a well completion comprising a downhole pump for a time and flow rate sufficient to produce flowable heavy oil composition, the well completion comprising a sampling tool; and sampling the flowable heavy oil composition using the sampling tool. This abstract complies with rules requiring an abstract. It should not be used to limit the scope or meaning of the claims. 37 CFR 1.72(b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.