The VIKING and GATE synergy results in providing a more complete solution to our clients.


As per GATE’s Mission Statement of ‘We Make it Work Right the First Time’, the acquisition of VIKING Engineering is allowing our organization to bridge a gap that normally exists within our industry between D&C, Facilities and Operations.  As a result, we are now providing our clients with even more holistic solutions that are unmatched in the industry.

Holistic Annulus Pressure Management Solutions

The GATE Flow Assurance and Operations Readiness Team along with the VIKING team has joined forces to merge the mechanical and dynamic thermal-hydraulic aspects to bring a holistic approach to annulus pressure management. By combining these two aspects of well design and integrity management, we offer more robust:

  • Annular Pressure Buildup Evaluations
  • Annulus Pressure Management Guidelines
  • Thermal Well Modeling

Annular Pressure Buildup (APB) Modeling - VIKING's WEll Annulus Operating Windows

Multi-String Annular Pressure Buildup (APB) Modeling involves the evaluation of the pressure increase in the various casing annuli during transient well operations. This APB Modeling along with the development of the Annulus Operating Window, developed exclusively by the VIKING team, provides operators with all mechanical limitations of the subject well.

Annulus Pressure Management
Initial Well Ramp-Up & Initial Startup

Annulus Pressure Management Guidelines - Initial Well Ramp-up & Initial Startup Planning Optimization

By linking VIKING's well operating envelopes with the initial startup flow assurance modeling performed by the GATE Flow Assurance team, we can anticipate well shut-in requirements for annular pressure management operations during the initial startup phase. This then allows for more robust development of initial startup plans and procedures by the GATE Operations Readiness team, taking into account flow assurance risks and mitigation plans.

Initial Well Ramp-Up & Initial Startup
Initial Well Ramp-Up & Initial Startup

Thermal WEll Modeling - Precision in Determining Flowing Wellhead Temperatures

VIKING software tools such as WellCat®, that incorporates all components of the well, linked with GATE transient thermal-hydraulic models, such as OLGA®, allows us to optimize heat transfer calculations from the sandface to the wellhead. We can then predict and verify thermal-hydraulic performance of the wells being investigated not only during steady-state, but during transient operations (i.e. Initial Well Ramp-up, Well Shutdowns, etc.).

Thermal Modeling

Coil Tubing Operations - Well Integrity Aspects

VIKING and GATE working together in order to determine level of erosion risks and associated stresses involved with certain coil tubing well operations such as gas lifting via coil tubing. 




Sour Service Fields

Corrosion Modeling, Production Chemistry, and Materials Engineering

Using GATE’s corrosion engineering and production chemistry teams in order to provide critical output parameters to VIKING for integrity and risk assessments.

Sour Service Fields

Decommissioning & Abandonment

GATE and VIKING work together to provide decommissioning and abandonment support for oil and gas facilities. VIKING provides expertise in the areas of:

  • Plug & Abandonment Plans, Procedures & Field Oversight
  • BSEE Plug & Abandonment Certifications

Full Listing of Services

Decommissioning Services

You can download the full decommissioning and abandonment brochure here:

Spill Response Support

Coupling GATE's expertise in Flow Assurance with VIKING's expertise in critical well engineering have merged to become the Well Flow Engineering Team. The Well Flow Engineering Team has a track record in supporting operators in oil spill drills, and offers a standalone, fit-for-purpose solution. This partnership provides seamless engineering support, which results in efficient, more effective planning and execution of source control and oil spill response activities.

The Well Flow Engineering Team uses the most advanced and proven Well Integrity and Well Risk Management tools to provide the most realistic scenarios that allow operators to delineate the optimum strategies for source control and fluid discharge mitigation.

You can download the full Spill Response brochure here:

GATE is a multi-disciplinary engineering company providing services through concept selection, pre-FEED, FEED, detailed design, installation, commissioning to operations in areas of subsea engineering, chemical systems engineering, production chemistry, flow assurance, corrosion, materials, integrity, operations readiness, marine construction, initial startup, commissioning and high risk marine operations. Read more about GATE services at