Many bridge plugs can be run on drillpipe, CT, or wireline. A hydraulic setting
tool is used for setting a bridge plug using CT, while a wireline setting tool is
used for wireline applications.
Most hydraulic setting tools set the packer by dropping a ball and pressuring
up the CT string.

CT Wired Applications
CT wired applications refers to those applications that utilize an electric cable
inside the CT string to perform typical wireline functions on CT. The main
applications are

• CT logging
• CT perforating.

While the same functions are required for both applications, different suites of CT
downhole tools are used for each because of the higher level of force seen in
perforation applications.

CT Logging
Logging refers to the downhole surveys carried out with very specialized
electronic tools to gather detailed information on the formation and wellbore.
Generally, logging tools are run into an oil or gas well on wireline. Wireline is a
conductive cable that allows signals to be transmitted in both directions. As the
tool is run across the zone of interest, the tool gathers data and sends it back
to surface; refer to Figure 5-34. This procedure can be conducted in wells with
deviations up to 65 degrees.