Deployment of a wireline tool
US8479830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2008 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Oct 30, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/023
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and a method for deploying a wireline tool in a borehole. The apparatus comprises a wireline cable which is connected at a first end at the surface and is releasably connected at a second end to a first end of an umbilical cable via a first connection means. A second end of the umbilical cable is releasably connected to the logging head of a wireline tool via a first latching means, wherein the logging head provides for mechanical and electrical connection between the wireline tool and the wireline cable via the umbilical cable. The umbilical cable is surrounded by umbilical pipe downhole, and the logging head also provides for mechanical and hydraulic connection between the umbilical pipe and the wireline tool. The wireline tool is releasable from connection with the umbilical cable by a release means in the first latching means, and is capable of being pulled through the first latching means and through the umbilical pipe so that it is retrievable from the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.