| 摘要 |
A logging system for use in a wellbore formed in an earth formation is disclosed. The system comprises a tubular conduit (9) extending from surface into the wellbore and containing a body of wellbore fluid, a logging tool string (12) capable of passing from a position within the conduit to a position outside the conduit at a lower end part thereof and capable of bein g suspended by the conduit in said position outside the conduit, and a pressur e pulse device (18) arranged within the conduit in a manner that the pressure pulse device is in data communication with the logging tool. The pressure pulse device is capable of generating pressure pulses in the body of wellbor e fluid, said pressure pulses representing data communicated by the logging to ol string to the pressure pulse device during logging of earth formation by the logging tool string.
|
