Foam gravel packing
US4438815A · kind A · utility
12Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1981 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Nov 23, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/045
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of gravel packing a subsurface well is disclosed wherein particulate material is fluidized in a gas/liquid foam carrier fluid and transported to the subsurface where the particulate material forms the gravel pack and the foam carrier fluid returns to the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.