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Process simulations are a part of many projects and are performed using our licensed copy of HYSYS software. We perform process studies to scope greenfield facilities and optimize existing ones. At Tuxtla, we have expertise in most oilfield equipment including:

  • Natural gas liquid conditioning and fractionation

  • Mechanical refrigeration plants

  • Separators

  • Screw and reciprocating compressors

  • Glycol dehydrators

  • Amine sweetening plants

  • Scavenger type sweetening systems

  • Lean oil absorption

  • Line heaters

  • Flare systems

  • Vapour recovery systems

  • Methanol recovery through distillation

  • Deep-cut turboexpanders​ ​

Process Engineering​

More Services

Tuxtla’s clients rely on us to ensure that all the appropriate permits are received in time for construction and operation of their facilities and pipelines. We are experienced in preparing and submitting applications and obtaining approvals from various regulatory authorities, including:


  • Alberta Energy Regulator (AER) – Alberta

  • Alberta Environment and Parks (AEP)

  • BC Oil & Gas Commission (British Columbia)

  • Alberta Boilers Safety Association (ABSA)

  • National Energy Board (NEB)

  • Saskatchewan Energy and Resources

  • Manitoba Innovation, Energy, and Mines


Pipeline studies are performed using our licensed copy of PIPESIM software. Tuxtla has successfully modeled systems with:



  • More than 100 wells

  • Looping scenarios and options

  • Three-phase flow

  • Slug flow through hilly terrain



Studies are typically completed to perform some or all of the following tasks:


  • Evaluate pipeline diameter options

  • Identify bottlenecks in existing systems

  • Identify flow regimes

  • Optimize fluid velocities in sour systems to minimize corrosion

  • Assess pipeline capacity

Pipeline Simulations

Tuxtla provides a full range of construction drawings for all projects.

These include:


  • Process flow diagrams (PFD’s)

  • Process and instrumentation drawings (P & ID’s)

  • Piping (ortho) drawings, plans & sections

  • Isometric drawings and material take-offs

  • Plot plans, grading plans

  • Detailed electrical and civil drawings


Tuxtla’s draftsmen work in both Autocad and Intergraph Micro Station.


Tuxtla also provides “as-building”  services, which will provide various civil, mechanical and electrical drawings for existing sites.

Design and Drafting

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