Natural gas extracted from underground sources is saturated with liquid water and heavier hydrocarbon components. Several stages of processing are needed to produce a clean, dry gas suitable for transmission through pipelines and end use. Our analyzers measure all the key quality parameters in natural gas to ensure compliance with international standards, protect pipelines and equipment and ensure safety.
We offer analyzers for continuous online monitoring, lightweight portable analyzers for spot checking or transmitters for direct installation where space or cost-efficient measurement are of importance. For specific needs or large projects, our experienced systems engineering department will work with you to create custom systems and packages.
Discover a wide choice of instrumentation for measuring trace moisture, hydrocarbon dew-point, oxygen and hydrogen sulphide with global hazardous area certifications. All the Michell Instruments on-line process moisture analyzers featured here are suitable for use with natural gas containing up to 20% hydrogen with no further modification required.
| Application/Service | Purpose of Measurement | Measurement | Measurement Gas/Background Gas | Recommended Product |
|---|---|---|---|---|
| Onshore production wellhead or offshore platform |
Avoid corrosion water and/or hydrates | Parameter:Water dew-point or moisture Range: 10-100 ppmV -30°C to -10°C dp at line pressure Pressure: 40-70 barg |
Natural Gas with Hydrocarbon Concentrates | OptiPEAK TDL600 QMA601 Promet EExd/I.S. Easidew Pro XP ES70 |
| Onshore/offshore reinjection into depleted oil/gas reservoir/Carbon capture |
Avoid turbine compressor damage | Parameter:Water dew-point or moisture Range:10-100 ppmV -30°C to -10°C dp at line pressure Pressure: 70 barg |
Natural Gas with higher CO2 and H2S from amine process | OptiPEAK TDL600 QMA601 Promet EExd/I.S. Easidew Pro XP ES70 |
| Offshore Export Gas/Compression |
Conform to seabed pipeline operation specification | Parameter:Water dew-point or moisture Range: 10-100 ppmV -30°C to -10 °C dp at line pressure Pressure: 120-210 barg |
Natural Gas with hydrocarbon condensates | OptiPEAK TDL600 QMA601 Promet EExd/I.S. Easidew Pro XP ES70 |
| Application/Service | Purpose of Measurement | Measurement | Measurement Gas/Background Gas | Recommended Product |
|---|---|---|---|---|
| Biomethane injection to area grid network/Refrigeration + silica gel drying | Conform to national grid gas quality specifications | Parameter:Water dew point or moisture Range: Typically alarm -5°C dew point at grid pressure, <200mg/std m3 Pressure: 5 - 10 barg |
Sweetened biogas | Easidew TX I.S. Easidew PRO I.S. ES70 |
| Application/Service | Purpose of Measurement | Measurement | Measurement Gas/Background Gas | Recommended Product |
|---|---|---|---|---|
| Central Processing plant or shore receiving terminal | Conform to contractual gas quality specification | Parameter:HCDP and WDP in ??C. Moisture, Oxygen and H2S concentration Range: HCDP: -25 to 0??C dp at cricondentherm (27 bar) Wdp: -30 to -10°C Wdp at line pressure Moisture content: 5 to 150ppmV Oxygen: 1ppmV to 1%v H2S: <1-25ppmV Pressure:70 barg |
Natural Gas | Condumax II with WDP Combo: condumax II + Optipeak TDL600 or Condumax II + QMA601 CDP301Minox-I GPR-7500 and GPR-7100 GPR-18 Series GPR-1500 Series GPR-1800 Series |
| Transmission Pipeline/Metering custody transfer | Conform to contractual gas quality specification | Parameter:HCdp and Wdp in ??C. Moisture, Oxygen and H2S concentration Range: HCdp: -25 to 0 ??C dp at cricondentherm (27 bar) Wdp: -30 to -10 Wdp at line pressure Moisture content: 5-150ppmV Oxygen: 1ppmV to 1%v H2S: <1 to 25ppmV Pressure: 70 barg |
Natural Gas | Condumax II with WDP Combo: condumax II + Optipeak TDL600 or Condumax II + QMA601 CDP301 Minox-I GPR-7500 and GPR-7100 GPR-18 Series GPR-1500 Series GPR-1800 Series |
| Natural Gas Liquids extraction plant/Molecular Sieve Drying |
Avoid ice formation causing damage withing turbo expander <-80 ° C operating temperature |
Parameter:Moisture in ppmV Range: 0.01 to 5 ppmV, alarm 0.05 ppmV, <-80 ??Cdp at line pressure Pressure:55 - 70 barg |
Natural gas potentially entrained with hydrocarbon liquid | QMA601 QMA601 with enhanced calibration Promet EExd/I.S. Easidew Pro XP |
| Liquid natural gas liquefaction plant/ Molecular sieve drying | Avoid ice build-up within cryogenic heat exchanger, <-160 °C process temperature | Parameter:Moisture in ppmVRange: 0.03 to 10 ppmV, alarm 0.1ppmV, <-70 ° Cdp at line pressure Pressure: 55-70 barg |
Natural Gas potential entrained with hydrocarbon liquid | QMA601 QMA601 with enhanced calibration Promet EExd/I.S. Easidew Pro XP |