Application of multiphase generation process in a CO.sub.2 flood for high temperature reservoirs
US5046561A · kind A · utility
4Cited by
5References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 12, 1990 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Mar 12, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A high temperature reservoir is preconditioned by injection of cold water until a zone around the injection well reaches a temperature suitable for multiphase generation conditions. A subsequent carbon dioxide injection creates a multiphase slug near the wellbore region. The multiphase slug is propagated through the reservoir by continued injection of CO.sub.2 or water alternating with gaseous CO.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.