Workover Drilling Rigs: The Hybrid Machines of the Oilfield

A workover drilling rig is a versatile oilfield rig that can both drill new wells and service existing ones. It's a hybrid machine — bigger than a pure workover rig, but smaller and more mobile than a full-sized drilling rig. That makes it perfect for medium-depth drilling operations, exploration work, and small oil companies that need one rig that can do everything.

What Makes It Different

A regular workover rig is designed to pull and run tubing in existing wells. It has a mast and a drawworks, but it's not set up for drilling — it doesn't have a rotary table, a top drive, or the mud system you need to drill a new hole.

A workover drilling rig has all the workover capabilities, plus the drilling equipment. It has a rotary head or top drive, a mud pump, and all the other equipment you need to drill a new well. So you can use it to drill a new well, then use the same rig to service it later. It's one machine that does two jobs.

Typical Uses

Development Drilling in Small Fields. If you're a small oil company with a small field, you don't need a giant drilling rig. A workover drilling rig is enough to drill the development wells you need, and you can use it for workover too. It's a cost-effective solution for small operators.

Exploration Drilling. Exploration companies use workover drilling rigs to drill exploratory wells. They're cheaper and faster to mobilize than full drilling rigs, which is perfect for exploration work where you're drilling a few wells here and there.

Workover Operations. Of course, you can also use it as a regular workover rig. It can pull tubing, replace pumps, do perforating, and all the other workover jobs. It's a one-size-fits-all machine.

FAQ

Q: How deep can a workover drilling rig drill?
A: Most workover drilling rigs can drill 1,000-3,000 meters deep. That's enough for most onshore development wells and exploratory wells. If you need to go deeper than 3,000 meters, you need a full-sized drilling rig.