Coiled tubing injector with load sensing tubing guide
US9581009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2013 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Nov 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L3/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention pertains to methods and apparatus for monitoring loads on an arched tubing guide of a coiled tubing injector caused by tension on coiled tubing. The load is sensed by a load sensor, for example, a load cell placed in a strut that supports the arched tubing guide, or in a load pin or load cell placed within the structure arched tubing guide or the connection of the arched tubing guide to a frame for the coiled tubing injector, at a location where the load is representative of the load placed on an arched tubing guide by tension in the coiled tubing. The load sensor generates a feedback signal. The load is monitored, either by an operator or a controller, and torque applied to a reel around which the tubing is wound is adjusted to avoid, or in response to, excessive loads on the arched tubing guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.