Modular drill floor

Technical Specifications – Modular Drill Floor

Parameter	Standard Configuration	Heavy‑Duty Configuration	Light / Heli Configuration
Rig depth capacity	4,000 – 7,000 m	7,000 – 9,000 m	1,500 – 3,000 m
Mast type	API 4F, 140 – 160 ft	API 4F, 160 – 170 ft	API 4F, 110 – 125 ft
Substructure height	6 – 9 m (two‑box stack)	7 – 11 m (three‑box stack)	3 – 5 m (single box)
Number of modules	6 – 12	10 – 18	3 – 5
Total weight (drill floor only)	60 – 120 tonnes	120 – 200 tonnes	20 – 40 tonnes
Skid / walk capability	Hydraulic skid (optional)	Hydraulic walking (optional)	Skid only
Hydraulic piping	Pre‑installed, capped	Pre‑installed, capped	Pre‑installed, capped
Electrical raceways	Embedded, terminated	Embedded, terminated	Embedded, terminated
Control wiring	Plug‑and‑play connectors	Plug‑and‑play connectors	Plug‑and‑play connectors
Floor grating	Galvanized steel	Galvanized steel	Aluminum (lightweight)
Fire rating	Standard (A‑60 optional)	Standard	Standard
API compliance	API 4F, 7K, 8C	API 4F, 7K, 8C	API 4F, 7K
Design standard	ISO 18647:2017 compliant	ISO 18647:2017 compliant	Modified for land

Applications – Where Modular Drill Floor Excels

Application	Why Modular	Real‑World Benefit
Shale gas / tight oil pad drilling	10–30 wells per pad. Rig must walk between wellheads.	Our walking‑ready modular floor relocates in <8 hours, versus 3–4 days for conventional teardown/setup.
Remote jungle or arctic sites	Access roads are poor; crane capacity is limited.	Heli‑transportable modules fit into small landing zones. No heavy cranes needed.
Offshore fixed platform	Platform deck space is precious; no room for field fabrication.	Modules designed to fit through platform hatches. Rig‑up uses platform’s existing cranes.
Short‑term exploration campaign	Rig may be moved 5–10 times per year.	Fast rig‑down / rig‑up reduces total campaign cost by up to 40% compared to conventional rigs.
Fleet standardization	Contractor owns 5+ rigs working in similar fields.	Common modules across rigs reduce spare parts inventory and simplify crew training.
Workover / P&A projects	Small footprint, lower weight than full drilling rig.	Modular floor designed for 1,500 – 3,000 m workover; erects with platform cranes without derrick barges.

Product Types – Modular Drill Floor Configurations

Product Line	Depth Range	Module Count	Key Feature	Best For
MF‑Land Standard	4,000 – 7,000 m	6 – 9	Truck‑transportable, skid base	Conventional land development drilling
MF‑Land Walking	4,000 – 7,000 m	7 – 10	Integrated hydraulic walking system	Shale pads, tight oil multi‑wells
MF‑Offshore	5,000 – 9,000 m	8 – 12	ISO 18647 compliant, marine coatings	Fixed platforms, jack‑ups
MF‑Heli	1,500 – 3,000 m	3 – 5	Heli‑transportable (4,000 kg modules)	Remote exploration, jungle, arctic
MF‑Dual Activity	5,000 – 7,000 m	10 – 14	Pre‑configured for two well centers	Semi‑sub, drillship, high‑efficiency pads

Each product line includes:

• Full 3D BIM model (digital twin).

• Lifting and rig‑up procedure manual.

• Spare parts list for all interfaces and utilities.

Why Choose SJ Petro for Your Modular Drill Floor?

1. Pre‑Design Saves Weeks of Field Time

Because we engineer interfaces before the steel is cut, your field crew spends almost no time figuring out "where does this hydraulic line go?” Everything is labeled, match‑marked, and pre‑connected to manifolds. A six‑module drill floor can typically be assembled and made ready to drill in 5–7 days on site.

2. ISO 18647:2017 & API 4F Certified

Our modular drill floors are designed to meet ISO 18647:2017 (modular drilling rigs for offshore fixed platforms), API 4F (mast and substructure), API 7K (drawworks), and API 8C (top drive). All structural welding is performed by certified welders with full traceability.

3. Interchangeable Modules Across Rigs

If you own multiple SJ Petro modular rigs, the modules are compatible. A power module from Rig A can support Rig B during an outage. Spare parts inventory drops because the same seals, bearings, and valves are used across the fleet.

4. Designed for Walking & Cluster Wells

Our modular floor is compatible with the Lift & Slide®‑style hydraulic walking system. The floor structure includes pre‑mounted lift pads and slide surfaces. You simply bolt on the walking cylinders when needed — no field cutting or welding.

5. Backed by Sinopec Engineering

As a wholly‑owned subsidiary of Sinopec Oilfield Equipment Corporation, we have access to decades of operational feedback from China's largest drilling fleet. This isn’t theoretical engineering — it's field‑tested, battle‑proven.

6. Global Logistics & Field Support

We ship modules worldwide and provide on‑site assembly supervision. For repeat customers, we can pre‑train your local crew in our factory so they arrive at the wellsite ready to assemble.

7. Options for Every Budget

From a basic skid‑mounted floor for a 4,000 m rig to a fully automated walking floor for a 7,000 m shale rig, we scale the modularity to match your needs. You can also start small and add walking or automation later — the interfaces are pre‑designed for expansion.

FAQ – Modular Drill Floor

Q1: What exactly is included in a "modular drill floor” from SJ Petro?

A: Our standard scope includes:

• Upper and lower substructure boxes (the steel structure).

• Skid base or walking system interface.

• Driller’s cabin support platform.

• Pre‑laid hydraulic piping, electrical raceways, and pneumatic lines.

• Grating, handrail mounting points, and toe plates.

• Mast mounting shoes.

• Connection hardware (bolts, pins, tensioners).
  Not included (and typically ordered separately): drawworks, top drive, mud pumps, control cabin, mast.

Q2: How long does it take to assemble a modular drill floor on site?

A: For a six‑module floor, typically 5–7 days from first module off the truck to rig‑ready, assuming a crew of 6–8 and a suitable crane. Conventional stick‑built floors of the same capacity often require 3–4 weeks.

Q3: Can your modular floor be retrofitted to an existing conventional rig?

A: Yes, with some limitations. The existing substructure must be removed, but if your rig uses standard API connection dimensions, our modular floor can be installed. We have performed such retrofits. A site survey is required — contact us for a feasibility assessment.

Q4: How does the modular floor handle walking between wells on a pad?

A: The floor includes lift pads and slide surfaces designed for hydraulic cylinders. The walking system is not permanently mounted — it is bolted on during the pad drilling campaign. The cylinders lift the entire rig, move it laterally, and lower it onto the next wellhead position. One walking set can be moved from rig to rig as needed.

Q5: What documentation do you provide for permitting and certification?

A: We provide:

• Structural calculations (stamped by a licensed engineer in your country if required).

• Material certificates (EN 10204 3.1 or 3.2).

• Weld maps and NDT reports.

• Hydraulic and electrical schematics.

• ISO 18647:2017 compliance statement.

• API monogram certificates (where applicable).

Q6: Can I order just one or two modules to replace worn sections of my existing drill floor?

A: Yes. Because our modules use standardized interfaces, you can replace a damaged substructure box or add a walking skid without changing the entire floor. We maintain drawings of all modules for future compatibility.

Q7: Is the modular drill floor suitable for offshore / jack‑up use?

A: Absolutely. The MF‑Offshore line is designed specifically for marine environments — C5‑M corrosion protection, helideck compatibility, and compliance with ISO 18647:2017. Modules are sized to pass through platform hatches.

Q8: What is the typical warranty period for a modular drill floor?

A: 18 months from shipment or 12 months from commissioning (whichever comes first). Extended warranty available. For modules damaged during transport or handling, we offer rapid replacement from our stock of common module sizes.