Methods for measuring leakage rate and inferring production rate of an oilfield downhole pump
US8849594B2 · kind B2 · utility
8Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | May 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16Z99/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods for measuring the leakage rate of a downhole pump using either measured axial load information from the drive rod string or using measured production data. The invention is for methods of applying the leakage rate to a downhole dynamometer card, for a reciprocating rod pump, for determining well production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.