Controller for a rod pumping unit and method of operation
US10781813B2 · kind B2 · utility
2Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2015 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2207/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A controller for operating a rod pumping unit includes a processor configured to operate the rod pumping unit at a pumping profile speed. The processor is further configured to compute a first downhole dynamometer card from surface measurements at the rod pumping unit. The processor is further configured to compute a second downhole dynamometer card from the surface measurements. The processor is further configured to validate at least one of the first downhole dynamometer card and the second downhole dynamometer card based on a rod pumping unit condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.