Systems for input and output of data to a well tool
US5448477A · kind A · utility
6Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1993 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Feb 22, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/023
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
System for the input and output of data on a two wire system with a downhole well tool which has a system with sensor devices, a processor, a clock, a memory and a voltage/current communications device which are all powered by a d.c. battery. A phone jack and phone plug connection at the earth's surface enables an operator with a controller to input and output data to the well tool without disassembly and enables setting the clock in the well tool to a selected real time value. This enables synchronization of real time values of data recordings for different tools.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.