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Our Solutions

Practical Solutions For Real-World Gas Plant Challenges

From new processing facilities and customized equipment to brownfield modifications and operational improvements, Derrick Oneal Company provides connected support from early engineering through field execution. Our Gas Plant Nerds™ develop solutions around your process conditions, facility constraints, operating priorities, schedule, and commercial objectives.

The Right Level Of Support For Your Project

Every gas processing project presents a different challenge. You may need a complete processing facility, a customized equipment package, additional capacity, detailed engineering, or an experienced second set of eyes. DOCo brings together engineering, design, equipment, fabrication, procurement, construction coordination, and field support to help customers determine the right path forward.

Gas Processing Equipment

From custom-designed amine treating plants to molecular sieve dehydration units, state-of-the-art cryogenic plants, and fully integrated balance of plant equipment, we’re your one-stop shop for reliable gas processing equipment.

With over 50 years of experience in gas processing design and fabrication, we’re experts at finding the right solution for any scenario.
We focus on your budget and schedule, delivering the top-quality equipment you need, how and where you need it.
Each piece of equipment is designed and fabricated for your gas processing specs, from flow rate or contamination level, to recovery and rejection requirements.
Our equipment comes in easy-to-install shop-assembled skids for a more simplified field construction project.

amine treating plants

cryogenic plants

molecular sieve dehydration units

balance of plant equipment

Engineering, Design & Drafting

Bring us your challenges – we prevent and solve problems for operating plants, from troubleshooting equipment issues and capacity upgrades to routine maintenance. We’ll create a custom solution and proposal, balancing time, technology, and budget to meet your goals.

With extensive operations experience, we understand your challenges and deliver the best fit-for-purpose solutions

From 3D scans to spool drawings, we provide all the necessary detailed design to support your project.
Using the latest tools and technology, we create process simulations, smart P&IDs, and 3D modeling for the most accurate design.
We make sure that all designs integrate with your existing systems for a seamless transition from design to implementation.

FEED STUDIES

PROCESS SIMULATION

PSV CALCULATIONS

SMART P&IDs

Plot Plans

ISO GENERATION

general arrangement drawings

3d scanning and model creation

3D Modeling

Construction Design Packages

front end engineering and design study

capacity studies

Turnkey Solutions

Expertly managed projects delivered to meet your specs, with the level of support that’s right for you. Choose from full turnkey construction management or for clients requiring less support choose on-site materials management and construction consultation. We partner with experienced construction companies to handle or advise on every detail of your project from start to finish.

Get the perfect level of support for your project; choose from full construction management or advisory services.

We collaborate with established and proven construction companies for excellent workmanship and reliability.
When you choose full turnkey support, we become the single point of contact, taking full responsibility for the process until the plant is ready to be started up.
For smoother project execution and quick problem-solving with your chosen construction partner, use our advisory services. Our on-site personnel can provide quick turnaround answers and troubleshooting.

How Can We Support Your Facility?

From custom designs and equipment fabrication to engineering and construction management, we’re ready to build the right gas processing solution for you.

Locations We Serve

Explore our service areas across the natural gas shale basins, including Texas, Louisiana, North Dakota, Oklahoma, Colorado, New Mexico, Ohio, West Virginia, and Pennsylvania.