Wet Gas System
Auditing Services

image of a gas turbine compressor

SwRI engineers are actively involved with auditing of compressor station design.

image graph showing how wet gas reduced compressor performance

Wet gas flowing over an airfoil creates a liquid film layer that contributes to reduced compressor performance.


Related Brochures

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Wet Gas Compression
and System Performance


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Dry and Wet Gas
Test Facilities

Many natural gas compression scenarios can lead to multiphase flow within your compression machinery. Southwest Research Institute (SwRI) has the experience and tools to evaluate the potential and influence of wet gas on your operation.

How do we find liquid?

  • Check separator sizing and performance
  • Determine the risk for liquid carryover
  • Estimate the level of liquid drop out in the system

How do we determine the consequences of liquid?

  • Evaluate erosion potential
  • Estimate corrosion risk
  • Assess influence on compressor performance and reliability

How can we help you control the liquid and its influence?

  • Look at separator modifications
  • Determine if heating or cooling equipment is needed
  • Evaluate need for dehydration system
  • Look at more robust equipment design

The impacts to performance and reliability are different for each major type of compression system (reciprocating or centrifugal). In general, the common design considerations for wet gas operation should include size of drive system necessary to achieve the compressor performance, amount of liquid expected to be ingested by the compressor, size and ability of upstream separation equipment to properly control/extract liquid flow, and the impact of liquids to machine reliability.

Reliability impacts may include increased axial and/or radial vibrations, erosion, compressor slugging, or even compressor surge. Making equipment changes after installation impacts your schedule and capital equipment costs. If you have concerns about wet gas operation for your installation, a third-party design audit of the entire compression process and selected equipment is strongly recommended. SwRI has the experience needed to evaluate the potential and impact of wet gas on your operation.

SwRI can offer you a full range of capabilities and experience in evaluating the risk when operating with wet gas including becoming an extension of your engineering department. Contact us for more information about wet gas system audits at SwRI or how you can contract with SwRI.

image: wet gas flow facility at SwRI

SwRI engineers test and analyze wet gas influence on centrifugal compressor performance.

Related Terminology

wet gas compression  •  compression machinery  •  reciprocating compression system  •  centrifual compression system  •  radial vibrations  •  erosion  •  compressor performance  •  compressor slugging  •  compressor surge  •  design audit  •  liquid drop out

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 9 technical divisions.