Colorado’s oil and gas industry runs deeper than most people outside the energy sector realize. The DJ Basin — centered around Weld County, Greeley, and the Wattenberg Field — is one of the most active natural gas plays in the country. The Piceance Basin in western Colorado, around Grand Junction and Rifle, adds significant midstream and upstream fabrication demand. And along the Front Range, Denver-area fabrication shops build vessels for everything from industrial gas processing to chemical handling applications.
When those vessels require post weld heat treatment, fabricators in Colorado have two options: truck the vessel to a furnace shop and hope it fits, or call a mobile heat treating company that brings the equipment directly to the fabrication floor. Gulf Coast Combustion does the latter. We mobilize anywhere in the U.S. and have executed on-site pressure vessel PWHT on jobs from the Gulf Coast to the Rockies.
If you’re building pressure vessels for Colorado’s oil and gas market and need a mobile heat treating partner who shows up, executes clean, and hands you full documentation before they leave — call our owner James Benefield directly at 832-797-3428. He answers calls and texts personally, including short notice and emergency jobs.
Technical Resource
The Fabricator’s Complete Guide to Pressure Vessel PWHT
Everything you need to know about on-site pressure vessel PWHT — code requirements, execution standards, thermocouple methodology, documentation, and how to evaluate a heat treating contractor.
Talk to the Owner Directly
James Benefield
Owner, Gulf Coast Combustion
Call or text — James answers personally
No receptionist. No call queue. No waiting on a callback from someone who wasn’t on the last job.
Colorado Heat Treating for Oil & Gas and Industrial Fabricators
Colorado’s energy industry has been building pressure vessels for gas processing, midstream gathering, and industrial applications for decades — and the specs on what’s being fabricated today for DJ Basin operations and Piceance Basin midstream facilities are more demanding than ever. High-pressure, custom-engineered, ASME Section VIII-compliant vessels that need post weld heat treatment executed correctly the first time.
GCC brings the equipment directly to your facility. Our mobile direct gas fire combustion systems handle vessels of any size, with gas trains running up to 8 million BTU. When a vessel needs post weld heat treatment to meet ASME Section VIII Division 1 requirements, the heat treating vendor either performs — or the whole project stalls. For a breakdown of what those code requirements mean, see our post on PWHT requirements under ASME Section VIII.
Gulf Coast Combustion mobilizes nationally and provides full coverage across Colorado — from the Front Range corridor to the western slope. Whether your shop is in Denver, Greeley, or Grand Junction, we can get there. Here’s how long on-site PWHT typically takes by vessel size.
No Transport
No oversized load permits. No rigging. No transit risk. Your vessel never leaves your yard.
On-Site QC Witness
Your QC team monitors chart recorder data in real time throughout the entire cycle.
ASME Compliant
Every job executed to ASME Section VIII or your customer-specified WPS and code requirements.
Full Docs Before We Leave
Heat treat record, strip chart trace, calibration certificate, execution plan — complete before GCC trucks leave your yard.
Why Direct Gas Fire Combustion
For thick-walled, high-pressure pressure vessels — the kind being built for Colorado’s gas processing, midstream, and industrial markets — direct gas fire combustion delivers uniform, controllable heat across large surface areas. Our Type K thermocouples with capacitor discharge attachment and NIST-calibrated Chino recorders monitor and document every phase of the cycle. For more on the method, see what direct gas fire heat treating is and why it matters.
We follow ASME Section VIII parameters on ramp rates, soak temperatures, and hold times on every job. Our standard soak temperature is 1,150°F ±50°F. Heat-up and cool-down rates are calculated by wall thickness. Nothing is guessed, and nothing is left undocumented.
This Is What On-Site PWHT Actually Looks Like
Direct gas fire combustion, on-site, right where the vessel sits. No furnace. No transport. James Benefield is involved in every job.
Time lapse: 621,000 lb vessel, Central Texas. Direct gas fire combustion, on-site.
Services Available in Colorado
More From Gulf Coast Combustion
Pressure vessel PWHT is our primary work — but we also provide a full range of industrial heat treating services nationwide.
Fabricators and Operators We Serve in Colorado
GCC mobilizes throughout Colorado, including:
- Denver and Front Range fabrication shops and industrial facilities
- DJ Basin / Wattenberg Field — Greeley, Windsor, Fort Collins corridor
- Piceance Basin — Grand Junction, Rifle, Rangely midstream and upstream
- Colorado Springs and southern Colorado industrial fabrication
- Pueblo and Arkansas Valley industrial corridor
- Any location in Colorado where a large vessel needs on-site PWHT
Don’t see your area? GCC mobilizes statewide and nationwide. Call us and we’ll make it work.
What Happens After You Call
Getting a quote from GCC is straightforward. Here’s how it works.
Send us your specs
Drawings are ideal, but vessel weight, length, width, and wall thickness get us started. Email james@gulfcoastcombustion.com or call 713-425-3773.
We price it out
James reviews your specs personally and turns around a quote fast. No waiting on a sales team.
We schedule and mobilize
GCC is available on short notice. If your timeline is tight, tell us up front — we work around fabrication schedules regularly and can mobilize faster than you’d expect.
Full documentation before we leave
Every job includes a complete documentation package: heat treat record, strip chart recorder trace, calibration certificate, and written execution plan. Your QC package is complete before GCC trucks leave your yard.
Ready to Get Started?
Talk to James About Your Colorado Project
Call or text the owner directly at 832-797-3428 — or reach the office at 713-425-3773.
Frequently Asked Questions
How quickly can GCC mobilize to a Colorado job site?+
Colorado is a full mobilization from our base in Spring, TX — roughly 14 to 15 hours to Denver, with additional drive time to western Colorado locations like Grand Junction. We plan Colorado jobs with advance scheduling and build the mobilization into the project timeline. Call 713-425-3773 or text James at 832-797-3428 to talk through timing on your job.
What vessel sizes do you handle?+
Our mobile equipment handles vessels of virtually any size. We’ve treated vessels over 120 feet long and 600,000 lbs on-site. For Colorado oil and gas fabricators building large separators, contactors, and gas processing vessels — on-site is almost always more cost effective than furnace transport once you factor in permits, rigging, and transit risk.
Can our QC team witness the heat treatment?+
Yes, and we encourage it. Your team can monitor chart recorder data in real time throughout the entire cycle. Everything is visible and documented as it happens — no black box, no waiting on paperwork after the fact.
Do you work with fabricators who haven’t used mobile PWHT before?+
All the time. We walk first-time clients through the full process before the job starts — thermocouple placement, documentation requirements, what to expect during heat-up and hold. No surprises on job day.
What types of pressure vessels do you typically treat for Colorado projects?+
Colorado’s DJ Basin and Piceance Basin markets generate demand for separators, amine contactors, glycol contactors, scrubbers, and gas processing vessels — all high-pressure, thick-walled vessels that require PWHT executed to ASME Section VIII requirements. These are exactly the vessel types GCC handles, and we understand the production schedules that go with them.
Is on-site PWHT cost competitive with shipping to a furnace from Colorado?+
For large vessels, yes — almost always. The freight cost on an oversized load from Colorado to a furnace shop, plus permits, rigging, and the return trip, adds up fast. Call us with your vessel specs and we’ll give you a number to compare against your current furnace quote.
By the Numbers
Our Technical Standards
Soak Temperature
1,100°F – 1,200°F
GCC standard: 1,150°F ±50°F
Heat-Up Rate
400°F/hr ÷ wall thickness
Never exceeds 400°F/hr
Cool-Down Rate
500°F/hr ÷ wall thickness
Never exceeds 500°F/hr
Max Temp Differential
250°F during soak
Monitored across full vessel length
Thermocouples
Type K
TAU capacitor discharge attachment
Recorders
Chino AH Series
NIST traceable calibration annually
Gas Trains
Up to 8 million BTU
Direct gas fire combustion
Where We Work
Serving Fabricators Across Texas and the Gulf Coast
Based in Spring, TX. Serving Colorado & the Gulf Coast.
Ready to Schedule Your Colorado PWHT Job?
Call or text James directly at 832-797-3428 — or reach the office at 713-425-3773.
Email: james@gulfcoastcombustion.com
View all heat treating services including refractory dry outs, localized PWHT, consulting, and more.