Electrically operated safety release joint
US5257663A · kind A · utility
74Cited by
13References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1992 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Sep 29, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus of electrically and sequentially completing an oil and/or gas well through a tubing production string in a well casing. The operation includes electrically and sequentially actuating downhole equipment such as well packers, a safety joint, well annulus safety valve, solenoid actuated tubing safety valve, blanking block valve, circulating sleeve, and receiving electrical feedback from the equipment determining the position of the downhole equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.