Coiled tubing injector and method of controlling same
US11913294B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2021 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Jun 1, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A coiled tubing injector for running coiled tubing into and out of a well in a hydrocarbon-bearing formation, includes a coiled tubing injector head including a base and a gripping mechanism configured to grip the coiled tubing running through the base and to advance and retract the coiled tubing, and a control system. The control system includes a coiled tubing indicator disposed between the gripping mechanism and a blowout preventer coupled to a head of the well, to indicate a change from presence of the coiled tubing to absence of the coiled tubing. The control system also includes a gripping mechanism control coupled to the coiled tubing indicator and operable to stop movement of gripping mechanism, thus discontinuing movement of the coiled tubing in response to the coiled tubing indicator indicating the change from the presence of the coiled tubing to the absence of the coiled tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.