MANTIS / CURRENT 75 t UNIT / 19 OCTOBER 2026
Technical overview.
MANTIS is an ultra-light, remotely controlled hydraulic workover unit for selected rigless well-intervention and plug & abandonment scopes.
Download the PDFCurrent-unit reference.
- Pulling capacity
- 75 tAt 310 bar hydraulic pressure
- Slip gripping range
- 2 3/8 - 7 5/8 inSelected slips, connections and tooling
- Approximate unit diameter
- 2.5 mMANTIS unit only
- Indicative unit crew
- 2-3Per active shift
These figures describe the current 75 t unit. Unit diameter and unit crew exclude the complete spread and supporting services. Hydraulic pressure is not a well-pressure rating.
Deployment interfaces.
Indicative interface map. Installed height, module weights, load path, full-spread footprint and supporting equipment are established during project engineering.
Request module weights and lifting information for your scope ↗Scopes and status.
| Scope | Current status |
|---|---|
| Plug & abandonment | Field experience |
| Wireline support | Field experience |
| Tubing recovery | Field experience |
| Workover | Field experience |
| Re-abandonment | Candidate application — full scope not yet field-demonstrated |
| ESP change-out | In development |
| Heavier strings | Next 200 t unit / under development |
Field experience identifies scopes performed on MANTIS jobs. Candidate applications are within the current unit capability; execution of the complete scope has not yet been demonstrated in the field.
Standard tubular connections today. Premium-thread handling, milling and ESP cable-handling arrangements are in development. Offshore deployment requires installation-specific engineering and acceptance.
Inputs for a technical discussion.
Well and scope
Country, onshore/offshore setting, intended intervention or P&A activities and indicative timing.
Tubular programme
Tubular sizes, connections, estimated loads and overpull requirements, handling and workstring needs.
Site and interfaces
Access, ground/deck loads, crane reach and lift limits, installed height, module weights and full-spread layout.
Services and responsibilities
Well control, hydraulic power, fluids, wireline, lifting and supporting services, agreed with local partners.
Ter Bron provides MANTIS and its engineering knowledge. Integrated services are delivered with local partners; the supporting services and responsibility split are defined per project.
The next unit.
The next MANTIS unit is under development, targeting 200 t pulling capacity and a tubular range up to 9 5/8 in. Final specifications and availability are to be confirmed.
View the next-unit informationDiscuss an actual well scope.
Start with the country and setting, the intended work, tubular size and anticipated pulling requirement if known, and indicative timing. Detailed well records can follow through an agreed channel.
Contact the technical team