Wellbore clean-out tools
With a proven track record of more than 1,000 tool runs worldwide, MSI tools are recognised for their robust design and clean-out efficiency.
Wellbore cleaning specialists
Reduce rig downtime. Optimise profit.
MarMax clean-out tools, displacement chemicals and experienced wellsite teams — combining runs, saving rig time and delivering wells ready for completion.
- 1,000+MSI tool runs worldwide
- $220kEstimated saving per well
- 3 → 1Runs combined into a single trip
- Since 1995Boltog Energy in Africa & the Middle East
Services
End-to-end wellbore clean-out
From tool supply to full operations management, MSI covers every part of the clean-out and displacement.
Displacement chemicals
Solvents, surfactants and polymers formulated to aid wellbore clean-out operations.
Wellsite support
Experienced field personnel to support wellsite operations and ensure best practice is followed.
Operations management
The MSI team can manage the entire clean-out operation, including:
- Wellbore displacement recommendation
- Chemical spacer design
- Fluid hydraulics
- Tool space-out design
- Tool running procedures
MarMax Premium Tool Line
View in catalogue
Mechanical clean-out tools
Rotating mechanical scrapers
Scrapers, brushes, magnets, jetting and junk boot tools run on a rotating string.
Non-rotating mechanical scrapers
Free-rotating sleeves for both rotating and non-rotating drill string applications.
Serving Africa & the Middle East since 1995
Marshall Solutions International Ltd (MSIL)
A Boltog company
Marshall, a leader in shale shaker screens and drilling-related services, is now a Boltog company — jointly providing quality service in Nigeria, the Gulf of Guinea and the Middle East.
Boltog Energy Ltd is an oil and gas services company that has served clients across Africa and the Middle East since 1995. Boltog specialises in:
- Wellbore clean-up services
- Fishing services
- Supply of OCTG
- Fishing & downhole rental equipment
- Casing accessories, incl. float shoes & collars
- Machining, inspection & rig inspection
The association expands Marshall's footprint into Sub-Saharan Africa and the Middle East — giving customers greater access to specialised wellbore clean-out solutions and drilling-related services than ever before.
Our mission
Our mission
“To provide the oil and gas ecosystem with strategic and innovative drilling-related support services that exceed stakeholder expectations while consistently meeting health, safety and environmental standards.”
Proven in the field
Clean-out, pickling and displacement in one trip
On 9⅝″ clean-outs at up to 55° deviation, MSI tools combined multiple conventional runs into a single trip, with every key parameter landing within the well programme.
Read the case studies
Planning a clean-out?
Share your well information — our engineers will propose tools, placement and displacement design.