Well Testing

OSES offers a unique combination of testing services and equipment fabrication. Our reputation for providing the finest fit-for-purpose equipment, the most capable personnel and unsurpassed service quality is backed by 40 years of experience in surface production testing.

In addition to production testing and flowback services in most major oil- and gas-producing regions across North America, OSES has a globally recognized fabrication division. Specializing in international and offshore floor testing packages, gas measurement equipment and permanent surface production equipment, this division is known for superior quality fabrication coupled with expert technical support for ongoing operations.

Production Testing and Flowback

One of the leading providers of surface production testing and flowback services in U.S. markets, OSES works with clients to ensure that each well begins its life cycle with optimized production. Each project has unique needs that may require specialized equipment and procedures. We customize our services, have the equipment for most applications in our high-quality fleet, and consult with completion professionals on the most effective flowback and test procedures. Our equipment and personnel are qualified to test and flowback oil and gas wells up to 15,000 psi. All technicians are equipped with the latest communication equipment to transmit accurate field data to clients as often as required. Real-time data access via satellite is available.

  • Test Separators
  • Choke Manifolds
  • Flow Iron
  • Sand Separators
  • Flowback Tanks
  • Flare Stacks
  • Trash Catchers
  • Sand Pits
  • Flow Diverters
  • Combination Test Units
  • Indirect Heaters
  • Stackpack Test Units

Underbalanced Drilling

Our underbalanced drilling services, which allow well testing while in the drilling mode, eliminate the need for the expensive Drill Stem Testing (DST) service otherwise required to make the “plug or complete” decision on exploration wells. Trained in this technique, our well technicians on location can determine the potential of the flowing well while drilling is still in progress. We also provide engineering and well planning for underbalanced drilling.

Production/Well Testing Equipment Sales

OSES also manufactures and assembles oil and gas production and well testing equipment including test separators, gas-fired heaters and sand separators. Our staff is experienced in producing the appropriate design for most applications, and our trained technicians are available to maintain and service this equipment within our operating regions.

Other Services

Compliance Testing: Our compliance services include testing as well as completion of the documentation to meet certain regulatory requirements in Texas and New Mexico.

Training: We provide training in safe practices as well as the operation of testing units and related auxiliary equipment.

Equipment Fabrication & Manufacturing

Drawing on more than 40 years of experience in the design and fabrication of equipment for our own use, OSES offers these services to customers throughout the world in the form of the highest-quality gas measurement equipment, production equipment packages and onshore/offshore surface production testing packages. This expertise in fabrication, coupled with our team’s vast operational experience, allows the manufacturing division to provide our clients with equipment that is designed to the highest standards of quality and functionality.

Gas Measurement Equipment

We offer the following products and services, which are customized, engineered, fully documented and in strict compliance with API-AGA 14.3.

  • 2” – 20” Orifice Meter Runs
  • Header Stations and Pipeline Products
  • Compressor Skids
  • Chart Recorders
  • Electronic Flow Meters
  • Instrumentation and Accessories
  • Ultrasonic Meter Runs
  • Housing Skids
  • Offshore Packages
  • Complete EFM Measurement Packages
  • Repair/ Refurbishment
  • Field Tech Services
  • Parts Sales
  • Inspection and Cleaning
  • Pipe Spools

SME Code Vessels/Production Equipment

We offer permanent production equipment for simple well production sites or complex process facilities, custom designed and engineered. Our ASME code shop is fully staffed and equipped to adhere strictly to ASME Sec VIII, Div 1 for pressure vessels.

  • Production Test Separators
  • Slug Catchers
  • Coalescer Filter Separators
  • Absorber/ Scrubber Vessels
  • Glycol Regen Skids
  • Fuel Scrubbers
  • Heater Treaters
  • Gas-Fired Line Heaters
  • Sand Separators
  • Water Knockouts

Well Testing Product Catalog

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OSES Overview Brochure

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