Mobile Rigs

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Self-propelled drilling equipment for workover and drilling operations

Page last modified
September 22 2025

Discovery Drilling Equipment offers two types of mobile rigs:

Carrier Rigs:
- Self-propelled with up to 180 Ton capacity
- Designed for medium workover and light drilling operations
- Feature 4 to 7 axle carriers (depending on capacity) with hydraulically telescoping masts
- Include parallelogram or modular type substructures
- Come with Discovery mechanical drive drawworks, rotating equipment, and high/low pressure mud systems up to 5000 psi
- Optional equipment includes power swivels, handling tools, safety equipment, and well control systems
- Can be retrofitted with winterization packages

Trailer Rigs:
- Up to 250 Ton capacity
- Designed for heavy workover and medium drilling operations
- Feature 2 to 4 axle trailers (depending on capacity) with sectional masts raised hydraulically
- Include parallelogram or modular type substructures
- Come with either Discovery mechanical drive or AC electric drive drawworks with VFD technology
- Include high/low pressure mud systems up to 5000 psi and operational support equipment
- Optional equipment includes top drive systems, power swivels, handling tools, safety equipment, and well control systems
- Can be retrofitted with winterization packages

Both types are custom-designed and built to API standards.

Pros & Limitations
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Self-propelled design with up to 180-250 ton capacity
1
Hydraulically telescoping masts for easy setup
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Suitable for medium workover and light to medium drilling operations
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Can include parallelogram or modular type substructures based on client preference
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High pressure mud systems up to 5000 psi working pressure
1
Can be retrofitted with winterization packages
1
Available with advanced AC electric drive technology and VFD systems
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Optional equipment includes Top Drive Systems, Power Swivels, and handling tools
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Trailer design allows for heavy workover operations
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Custom tailored design to meet specific client requirements
Specification
Title Description
Theme/Discipline
Well Drilling
Carrier Rigs Capacity
Up to 180 Ton
Carrier Rigs Application
Medium workover and light drilling operations
Carrier Rigs Axles
4 to 7 axle Carrier
Carrier Rigs Mast Type
Hydraulically telescoping Masts
Trailer Rigs Capacity
Up to 250 Ton
Trailer Rigs Application
Heavy workover and medium drilling operations
Trailer Rigs Axles
2 to 4 axle Trailer
Trailer Rigs Mast Type
Sectional Masts raised hydraulically
High Pressure Mud Systems
Up to 5000 psi working pressure
Drawworks Options
Discovery mechanical drive or AC electric drive
Substructure Types
Parallelogram type or modular type
Optional Equipment
Power Swivels, Top Drive Systems, Handling tools, Safety and Fire Fighting equipment, well control equipment
Winterization
Available as retrofit package
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Discovery Drilling Equipment (DDE) is a rig building division of Discovery Industrial Services Ltd, a UK company registered in London, that specializes in custom-tailored drilling rigs and components for the oilfield industry. Founded in 2006 with roots dating back to 1885, the company operates with engineering and project management based in the UK and US, while manufacturing facilities are located in Ukraine. DDE offers a comprehensive range of products and services including land rigs, mobile rigs (carrier and trailer rigs up to 250-ton capacity), rig components, inspections, field service, upgrades, and refurbishments. The company maintains API monogram and ISO certificates, serves clients across five continents including global leading drilling contractors and oil companies, and prides itself on 100% customer quality satisfaction, competitive pricing, and personalized customer service with over one hundred years of combined management experience in the industry.

Country of Headquarters
United Kingdom
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