Method for determining borehole fluid influx
US5222048A · kind A · utility
20Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1990 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Nov 8, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/041
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Fluid influx in a borehole is determined by examining and monitoring the computed transfer function in the signal channel defined by the annulus between the borehole and a drillstring in the borehole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.