Tripping indicator for MWD systems
US9157310B2 · kind B2 · utility
2Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2008 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Jan 29, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for surveying a formation includes conveying a survey instrument into the wellbore; measuring one or more parameters of interest relating to a wellbore tubular in the wellbore; and operating the survey instrument after the measured parameter of interest indicates that the wellbore tubular is being tripped out of the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.