Method and apparatus for determining and displaying geosteering information
US9103936B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2011 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Feb 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system to render a graphic display that includes a color-coded risk indicator to facilitate the steering of a drill string during subterranean drilling. The system comprises a receiver to receive measurement data from downhole instrumentation forming part of the drill string during the drilling of a well bore in a geological formation, and an exit risk determining module to determine an exit risk value based at least in part on the measurement data. The exit risk value is indicative of a risk of exiting of the formation by the drill string. A display module is provided to render the graphic display of decision information, to assist steering of the drill string. The color-coded exit risk indicator comprises a colored area having a color indicative of the exit risk value, the color of the colored area being changeable in response to changes in the exit risk value. The graphic display may show a wellbore trajectory in relation to a formation boundary, with the color-coded risk indicator comprising an area extending between the wellbore trajectory and the formation boundary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.