Bolted Steel Tanks for Oil and Gas Applications
Bolted steel tanks have become the preferred storage solution for produced water, frac water, and oilfield process fluids where speed of deployment, coating quality, and future relocation matter as much as the tank itself. In upstream and midstream operations — where pads move, permits are time-sensitive, and welding logistics in remote locations drive cost — a factory-coated bolted tank gets you storing product weeks before a field-welded alternative would.
MMI Tank engineers, fabricates, and field-erects bolted steel tanks for oil and gas operators across the western United States. Every panel is factory-coated in our Phoenix facility before it ships, giving you a coating system that starts performing the day the last bolt is torqued.
Where Bolted Tanks Fit in Oil and Gas
Produced Water Storage
High-volume produced water with elevated chlorides, total dissolved solids, and H₂S demands a coating system that won’t fail in 18 months. Glass-fused-to-steel and factory-baked epoxy outperform field-applied coatings in this service because the factory environment eliminates the surface prep and cure-condition variables that cause premature coating failure in the field.
Frac Water Storage
Hydraulic fracturing operations need storage fast — often before the road to the pad is even finished. Bolted tanks ship flat on standard trailers, assemble with a crane and hand tools, and go into service in days. When the completion is done and the pad moves, the tank disassembles and moves with it.
Crude Oil Lease Storage
API 12B bolted tanks for lease-site crude storage at production batteries and gathering stations. Factory-coated interiors resist the corrosive cocktail of crude, brine, and dissolved gases. Available with API-compliant gauging, venting, and overfill protection.
Saltwater Disposal Facilities
SWD facilities receiving produced water for underground injection need reliable high-volume storage with chemical-resistant coatings. Bolted construction allows rapid capacity expansion by adding tanks as injection volumes grow.
Drilling and Completion Fluids
Temporary and permanent storage for drilling mud, completion fluids, and reserve pit replacement. Bolted tanks for closed-loop systems eliminate earthen reserve pits and their associated environmental liability.
Why Bolted for Oil and Gas?
| Factor | Bolted Advantage |
|---|---|
| Speed to service | 2–4 weeks vs. 2–3 months for welded |
| Remote pad access | Ship flat, assemble on site — no welding trucks needed |
| Coating quality | Factory-baked in climate-controlled environment — no field variables |
| Relocatable | Disassemble, move, re-erect when operations shift |
| Expandable | Add shell rings to increase capacity without scrapping the tank |
| Environmental | No welding fumes, grinding dust, or blast media on active pads |
Coatings for Oilfield Bolted Tanks
- Glass-fused-to-steel — ceramic coating fused to the steel at 1,500°F+. The most resistant option for produced water with high chlorides, H₂S, and pH swings. 30+ year expected life.
- Factory-baked epoxy — interior and exterior, applied and cured in a controlled oven. 15–25 year performance in most oilfield water service.
- Galvanized — hot-dip galvanized panels for dry bulk storage (proppant, sand) and less aggressive liquid service.
All coatings are applied to every surface — including edges and bolt holes — before panels leave the factory.
Applicable Codes
- API 12B — Specification for Bolted Tanks for Storage of Production Liquids
- AWWA D103 — Factory-Coated Bolted Steel Tanks (when storing water)
- SPCC / 40 CFR 112 — Spill prevention secondary containment requirements
- State O&G commission regulations — tank registration, inspection, and leak detection
Bolted Oil and Gas Tank FAQ
How fast can a bolted tank be installed on a well pad?
A typical 10,000–50,000 barrel bolted tank can be erected in 1–3 weeks after panel delivery, depending on site access and crew size. Foundations can often be poured concurrently with panel fabrication to compress the overall schedule.
Can a bolted tank handle sour (H₂S) service?
Yes. Glass-fused-to-steel coatings provide excellent resistance to H₂S attack on the interior surfaces. For bolted tanks in sour service, we also specify H₂S-compatible gasket materials and hardware per operator requirements.
What happens when the pad moves?
The tank disassembles. Panels are unbolted, loaded on flatbeds, and transported to the new location. MMI’s field crews handle disassembly, transport, and re-erection. Panels are inspected and any damaged coatings are touched up before reassembly.
Are bolted tanks approved for crude oil storage?
Yes. API 12B is the governing specification for bolted tanks storing production liquids including crude oil. MMI builds to API 12B with appropriate venting, gauging, and overfill protection.
Request a Quote
Not sure if bolted is right for your application? See our field-erected welded tanks or our full oil and gas tank capabilities.
Tell us your stored product, capacity, site location, and timeline. Our bolted tank team will provide engineering and a budget estimate.
David Mann — Bolted Tank Manager
📞 (417) 540-5349 · 📧 dmann@mmitank.com
Related: Tank Coating Selection Guide · Bolted Water Storage Tanks · All Bolted Tank Products
