Spacer for deep wells
US4478278A · kind A · utility
13Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1981 |
| Grant date | Oct 23, 1984 |
| Priority date | — |
| Expiry date | Nov 27, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1035
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A spacer for use in a deep well that is to have a submersible pump situated downhole and with a string of tubing attached to the pump for delivering the pumped fluid. The pump is electrically driven, and power is supplied via an armored cable which parallels the string of tubing. Spacers are clamped to the cable and have the tubing running through an eccentrically located passage in each spacer. The outside dimensions of a spacer fit freely inside any casing in the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.