Multiple transmitter and receiver well logging system and method to compensate for response symmetry and borehole rugosity effects
US6822455B2 · kind B2 · utility
1Cited by
11References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Oct 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a system for determining geologic formation resistivity while drilling and a new method providing compensation for the vertical asymmetries of the tool response and the effects of borehole rugosity. The apparatus and method allows the construction of a tool body considerably shorter in length than previous devices and provides more radial depths of investigation for a given number of transmitter and receiver antennas when compared to previous devices. A method for calibrating data acquisition errors of the system is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.