> E-line

Most commonly used in well logging, perforating and well surveillance activities; real time data is obtained through the electric cable and provides accuracy of depth control and well information. Normally performed under 'live' well conditions.

Equipment:

The equipment required to conduct electric line operations consist of:

Mono conductor cable which can be supplied from 7/32" - 7/16"
Winch unit capable of holding up to 25,000ft of wire
Diesel or Electric Powerpack
Well Control Panel
Grease injection pump unit
Pressure control equipment comprising Lubricator / Grease injection head / BOPS /Riser
Logging /Data centre for storing / analysing data during the operation (this unit may form part of the winch unit)
Tool house holding logging tools and equipment

Applications:

Electric line can be used for many applications but predominantly well logging activities such as:

Cased Hole Logging - Production logging to determine zonal contributions, water or gas influxes, permeability and porosity measurement
Open Hole Logging - Reservoir monitoring, Resistivity measurement, formation testing
Perforating - casing and tubing perforation operations
Explosive Devices - Setting packers, plugs and straddles
Drilling Support Services - Explosive back off operations to free stuck drillpipe

Useful data can be located - here