Tracking and measurements associated with cement plugs
US10539007B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2015 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jun 15, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cement head including a tubular body having a top end and a bottom end, and a borehole arranged through at least a portion of the tubular body; a cement plug arranged in the borehole and configured to exit the cement head upon releasing a retention device; and a spool assembly arranged on the tubular body, wherein the spool assembly comprises a drum rotatable about a central axis and a continuous cable having a first end and a second end, the first end being attached to the drum and the second end being attached to the cement plug, and wherein rotating the drum about the central axis results in spooling or unspooling the continuous cable about the drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.