Determining subsurface fluid properties using a downhole device
US6334489B1 · kind B1 · utility
38Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1999 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Jul 19, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/081
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system, apparatus, and method for determining real time bubble point pressure and compressibility of a fluid originating from a subsurface earth formation during well production first permit remote collection of a sample of fluid. The sample of fluid is then remotely expanded, while the temperature, pressure, and volume of the sample of fluid are remotely monitored. The real time bubble point pressure and compressibility of the sample of fluid are extracted from a plot of sample fluid pressure versus volume, which exhibits substantially linear behavior having two different slopes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.