Pump differential pressure monitor system
US4741208A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Oct 9, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pump differential pressure monitor system enables both discharge and intake pressure to be monitored at the surface of a centrifugal well pump. This system includes a tubular sub mounted between the pump and the tubing. A receptacle is located inside the sub. A bypass passage extends past the receptacle for directing fluid discharged from the pump past the receptacle and into the tubing. A pair of pressure sensors are lowered on conductor cable and located inside the receptacle. One of the sensors communicates with the bypass passage to monitor discharge pressure. A port extends from the receptacle to the exterior of the sub and communicates fluid to the other pressure sensor for monitoring intake pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.