Device and installation for the cleaning of drains, particularly in a petroleum production well
US5280825A · kind A · utility
21Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Jun 22, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0078
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a device for cleaning a horizontal drain (10) adapted for being disposed at the end of two concentric pipe columns (14, 16). This device includes a body (20) provided with at least one cleaning fluid outlet port (38) and with at least one return port (30) for the fluid loaded with particles. The outlet ports are directed towards the wall of the drain and located at a predetermined distance from the return ports. The invention further relates to an installation for the cleaning of horizontal drains and to a method for implementing the installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.