Well consolidation method
US3991827A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Dec 22, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/11
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a method wherein two or more separate zones in a single wellbore are subjected to a consolidation treatment to prevent the production of solid particles from those zones into the wellbore, a tracer material is incorporated into each zone which is subjected to the consolidated treatment, the tracer material being unique to that particular zone. Thereafter, fluid produced from the well is analyzed to determine if any and, if so, which zone or zones are still leaking solid particles into the well. Subsequent consolidation retreatment of the well is then limited to the zone or zones indicated to be leaking solid particles rather than being applied to all zones in the well again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.