Mulitmodal geosteering systems and methods
US8347985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2008 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Apr 25, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/092
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Multimodal geosteering systems and methods are disclosed. Some disclosed tool embodiments include first and second transmitter-receiver arrangements that make geosteering measurements using different forms of energy (such as acoustic and electromagnetic energy) to provide geosteering measurements that at least indicate a boundary direction but may also indicate a boundary distance. Some disclosed method embodiments include: determining a direction to a bed boundary using measurements with different energy types; and adjusting a drilling direction based at least in part on said determination. Combinations of (or selections between) the different measurements may be made based on, inter alia, measurement range, resolution, and contrast. Some disclosed system embodiments include a memory and a processor. The memory stores geosteering display software that configures the processor to generate an image with different regions based on the different types of geosteering measurements. Characteristics such as opacity, resolution, and intensity may visually distinguish the different regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.