Stuck pipe detection
US10436010B2 · kind B2 · utility
2Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2014 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Jan 1, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/09
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Tight spots in movements of a drill string in an oil well are identified by comparing a large interval hookload moving average to a short interval hookload moving average, comparing a large interval bit depth moving average to a short interval bit depth moving average, and DBSCANing the tight spots to identify a fully-stuck event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.