Borehole tester apparatus and methods for using nuclear electromagnetic radiation to determine fluid properties
US7807962B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2007 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Mar 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/616
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and methods for determining one or more fluid parameters of interest by irradiating fluid with a source of nuclear electromagnetic radiation and subsequently measuring attenuation and absorption properties of the fluid from which parameters of interest are determined. Measurements are made with a formation tester tool comprising preferably two functionally configured flow lines. The source simultaneously irradiates fluid contained in opposing irradiation sections that can be integral sections of each of the two flow lines. A radiation detector is dedicated to each irradiation section and measures radiation attenuation and absorption properties fluid contained within each flow line section. Absolute and relative fluid parameters of interest are determined from the responses of the two radiation detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.