Control system for borehole tools
US4648471A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1983 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Nov 2, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42D1/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for controlling a borehole tool, which tool has been conveyed into the borehole on production tubing. Apparatus includes a downhole control module connected to the tool for actuating and/or monitoring various subassemblies and/or events within the borehole. A communications link between the control module and the surface of the borehole is achieved with a wireline which has been terminated in a manner permitting electrical connection between the wireline and the control module to be made and broken in the downhole environment. Invention therefore combines the mechanical advantages of the rigid tubing for conveying the tool with the communication advantages of the wireline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.