The Industrial CapitalistA wireline company runs tools into a well on a cable, does work at depth, and pulls them back out. The cable, the wireline, carries the tool’s weight and, in electric line work, the power and data that let the tool measure the formation, fire perforating guns, or set a plug. It is one of the core services of well completion, and one of the most crew-dependent businesses on the pad.
The work
- Logging: running instruments that measure the rock and fluids around the wellbore, or the condition of the casing and cement.
- Perforating: firing shaped charges through the casing to open the well to the formation, stage by stage, in a plug-and-perf completion.
- Setting and pulling: plugs, packers, and other downhole hardware that isolate zones or hold equipment in place.
- Fishing and retrieval: getting back what was lost or stuck in the well.
The business
A wireline unit is a truck or skid with a winch, a cable, a control cab, and a pressure-control stack that lets the tool enter a live well. Each unit needs a crew, usually an engineer and operators, and a run of tools that themselves represent a large investment. Utilisation is everything: a unit that sits idle still costs money, and a unit that runs around the clock during a completion earns for the whole year. Most wireline companies are built by people who started as operators, understood the work, and financed their first unit on their own name.