Fluid monitoring in oil and gas wells using ultra-deep azimuthal electromagnetic logging while drilling tools
US12264578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2022 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Jan 8, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring one or more formation fluids in a subterranean formation. The method may include disposing a logging while drilling (LWD) system into a wellbore, measuring the one or more formation fluids in the subterranean formation with an electromagnetic (EM) measurement system disposed on the LWD system to form an EM data set, and inverting the EM data set using an information handling system to form a first image of the one or more formation fluids in the subterranean formation. The method may further include disposing the LWD system into the wellbore a second time, taking a second measurement the one or more formation fluids in the subterranean formation with an EM measurement system disposed on the LWD system to form a second EM data set, inverting the second EM data set using the information handling system to form a second image, and comparing the first image to the second.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.