Systems and methods for investigating a formation surrounding a borehole
US8718942B2 · kind B2 · utility
2Cited by
7References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Oct 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method, a system, and an apparatus are described for the data acquisition in the well-logging of a borehole wall during the investigation of formation properties. Data acquisition is conducted by either an adaptive phase compensation processing or a modulus mode processing, both of which use in-phase and out-of-phase current components to obtain current values. Adaptive phase compensation employs a calculation of a phase shift compensation value, which may then be applied to subsequent acquisitions and can be further processed in the generation of an image of the borehole wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.