Pipelines

Compressor Stations

Process Plants

Corrosion Control

Metering & Regulator Stations

SCADA - Automation & Control Systems

Metallurgical Services and Operations Support

Project Experience

Gas Transmission Pipeline Systems.  EN Engineering provides a complete range of engineering services to the natural gas transmission industry.   Our engineers have extensive experience in the design, construction and operation of large diameter, high-pressure natural gas pipeline systems.  Beyond that, we also have a unique customer perspective because most of our project managers, engineers, and support staff previously worked for major operating companies such as:

  • Natural Gas Pipeline Company of America (NGPL)
  • ANR Pipeline Company
  • Southern Natural Pipeline Company (SONAT)
  • Unocal
  • Mobil
  • Shell

 

 

We’ve been on the pipeline, doing every aspect throughout the system.  We’re experts…in

  • Mainlines
  • Gathering Systems
  • Compressor Stations
  • Field Booster Units
  • Power Plants
  • Process Plants
  • Storage Facilities
  • Meter and Regulator Stations
  • SCADA Systems, Instrumentation, Controls and Automation Systems
  • Corrosion Control Services 5

 

Compressor Stations 

  • Engineering
    • EN Engineering’s staff has extensive experience in the design, construction and operation of compressor stations.  From the initial analysis of the system to the development of equipment and material specifications, Environmental and Construction Permits, and the design of SCADA systems for engine controls.  ENE offers a full turn-key services to include Bid Analysis, Procurement of Materials and Construction Management.
  • Operational review
    • ENE has performed numerous projects that have consisted of assessment and/or evaluation of the practices and programs that have been implemented related to the design, operation and code compliance of natural gas compressor stations and storage facilities. 

Following is a non-inclusive list of services that we have provided as related to Compressor Stations:

 COMPRESSOR STATIONS

  • Comprehensive Integrity Reviews (Mechanical, Electrical, Codes and Corrosion)

  • Electric Motor Drives  (Reciprocating, Centrifugal, VFD’s)

  • Gas Turbine/Centrifugal Compressors

  • Separable Engine/Compressor Packages Booster Compressors

  • Integral Engine Revamps/Upgrades

  • Auxiliary System Designs (Oil, Auxiliary and JW Cooling, Exhaust Systems, Fuel Gas, Gas Cooling)

  • Emission Control Retrofit Designs

  • Electrical and Instrumentation Designs (UPS, MCC, Fault Current Analysis, Purchase Power, Standby Power, VFD’s, Peak Shaving and Self Generation)

  • Station and Unit Automation

  • SCADA and Communications Design

  • Noise Investigations

  • Piping Vibration and Pulsation Problem Investigations

  • Feasibility Studies, Site Layouts and Cost Estimates

  • FERC Resource Report 9 Filing Preparation 5

 

Process Plants

EN Engineering has an experienced background in the design, procurement and construction management of various types of natural gas process facilities.  The majority of these facilities have been installed at storage fields to meet gas quality specifications. 

 

ENE has designed gas separation, dehydration and gas cooling systems for the removal of liquid hydrocarbons and water.  A wide variety of systems have been designed for the removal of liquids from gas inlet streams, including centrifugal, coalescing, filter and three phase separators and slug catchers.   The design of atmospheric tank storage systems have ranged from small to medium in size.  Dehydration facilities installed for past projects have included mole sieve, glycol and solid desiccant types.  Gas cooling has been installed in conjunction with compression facilities. 

 

ENE’s experience also includes gas treating facilities for the removal of CO2 and H2S alone with all necessary supporting control systems for the purification plants.

 5

Corrosion Control 

The team of NACE-certified corrosion professionals at EN Engineering has been designing, upgrading and maintaining the corrosion control requirements of transmission, distribution and storage facilities for many large pipeline and distribution companies for more than 50 years.  ENE has recognized experts in all aspects of cathodic protection.  We can provide this experience and expertise to you on your distribution system.

 

ENE’s certified professionals can provide corrosion testing, research, materials evaluation and qualification, consulting and failure analysis.   Our expertise is geared toward companies in oil and gas, petrochemical and public utility operations. 

 

REGULATORY COMPLIANCE TESTING

Recent security-related incidents have raised safety concerns specific to gas pipelines.  Given this situation, there is and will continue to be increased scrutiny by government agencies regarding security issues for pipelines.  ENE will help you comply with these regulations at each step of the operations process.  We will provide you with up-to-date knowledge of pipeline integrity analysis, and will design the appropriate program for you to meet governmental regulations and standards. 5

Metering & Regulator Stations

The engineers at ENE have a great deal of experience and knowledge related to Meter and Regulator Stations.  Following is a list of some of the services that we offer: 

  • Orifice, Turbine and Ultrasonic Meter Station Design
  • Flow Conditioners
  • Regulation Design
  • Line Heaters and Separators
  • Meter Station Sizing and Cost Estimates
  • Odorization Design
  • Noise Control Studies and Design
  • Pulsation Filter Design
  • Gas Sampling and Analyzer Design
  • Electrical Power and Electronic Control Design
  • SCADA and Communications Design
  • Meter Proving Reviews
  • Launchers and Receivers (as needed)
  • Mainline Valves, Line Break Controls, Crossover Design (as needed). 5

Automation & Control Systems

 

ENE’s automation and control engineers handle a variety of projects ranging from simple SCADA designs to complex software for engine controls and compressor stations.  We know the latest technologies and we have the experience / expertise to design the system that will work most efficiently for you. 5

Metallurgical Services and Operations Support

  • EN Engineering provides in-depth expertise in the field of metallurgical design and failure analysis.  ENE brings over 40 years of metallurgical experience with failure investigations, corrosion and welding support.  Our past work includes some of the first cross-country work on X-70 line pipe runs, developing weld procedures for hot-tapping pressurized pipelines, and failure investigations on a variety of pressure vessels and pipeline compressor station components. 

     

    ENE has performed Metallurgical Failure Analysis involving:

    • Stress Corrosion Cracking of Pipeline Steels

    • Hard Spot Failures in Pipe due to Hydrogen Stress Cracking

    • Fatigue Cracking of Rotors, Crankshafts, Compressor Piston Rods and other Compressor Station Components

    • Pressure Vessels

    • Internal and External Corrosion

    • Mechanical Damage

    • Pipe Steel Defects

    • Longitudinal Seam Weld and Girth Weld Defects

    • Overload Conditions due to Earth Movement, Settling and Thermal Expansion

    • Grooving Corrosion of Electric Flash and Resistance Welds. 5

Project Experience