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Gas Processing & Treatment Projects

Equinox provides world class expertise in gas processing, gas treating and liquids recovery facilities design. We have designed and constructed over 80 gas processing trains worldwide.

Our experience includes a wide range of processing and treating facilities including refrigeration plants, amine sweetening, sulphur recovery, mercury removal, acid gas transportation and disposal, glycol dehydration, mole sieve dehydration, cryogenic processing plants, turbo-expanders, NGL recovery and fractionation.


Wapiti Gas Processing Facility (200 MMscfd)

Equinox successfully executed the FEED and Detail Design of the SemCAMS Wapiti Gas Plant under budget and ahead of schedule. This project included the design and installation of a grassroots, sour gas processing facility of 200 MMscfd raw inlet gas with up to 8% H2S. It includes gas sweetening, acid gas compression / dehydration, acid gas blending scheme for existing pipeline disposal, tie-ins for acid gas deep well disposal, and a C3+ recovery facility. Liquids capacity is approximately 3,500 bpd C5+ condensate and 2,500 bpd C3+ NGL. Read more about this project.

Pipestone Liquids Hub (22,000 bpd)

Equinox Engineering delivered the Pipestone Liquids Hub project 10% under budget, and 2 months ahead of schedule. Located outside of Grande Prairie Alberta, this project involved the installation of a facility designed to process and stabilize 3,498 m3/day (22,000 bpd) of sour emulsion. The emulsion contained 2,226 m3/day (14,000 bpd) of raw condensate and 1,272 m3/day (8,000 bpd) of produced water with up to 8% H2S. Read more about this project.

Glacier Sour Gas Plant Expansion (400 MMscfd)

Equinox executed the FEED, Detail Design, Construction and Installation phase of Advantage Oil & Gas’ Glacier Plant Expansion. This expansion increased the overall processing capacity of the facility from 260 MMscfd to 400 MMscfd, improved the facility’s overall flexibility by twinning equipment, and solved long-standing liquid management and operational issues. Read more about this project.

Kakwa Sour Gas Plant (200 MMscfd)

Equinox successfully executed the FEED, Detail Design and installation and commissioning of this a large sour, deep-cut gas plant facility. Rolled out in three phases. the scope included:
  • Phase I – 50 MMscfd sweet gas plant
  • Phase II – 200 MMscfd gas plant with deep cut (turbo-expander) liquids recovery
  • Phase III – 200 MMscfd Amine Sweetening
Many of our processing projects include condensate stabilization, turbo-expander processes for increased C2+ recovery, propane refrigeration processes for C3+ recovery, liquid fractionation trains as well as condensate, NGL and LPG storage.

Simonette Gas Plant

FEED and Detail Design and installation of 50 MMscfd expansion of the existing Simonette plant.

The process train includes slug catcher, liquids / liquids separator, inlet separation, condensate stabilizer, stabilizer overheads compressor, inlet/sales compression (2370 HP), refrigeration, de-ethanizer overheads compressor, LACT units (sales gas, condensate, LPG), produced water injection, storage for produced water and condensate. This will also provide incremental LPG production of 2,700 bpd and incremental stabilized condensate production of 9,000 bpd.

Dawson Sour Gas Plant (120 MMscfd)

FEED and Detail Design for a sour gas plant with process trains (2 x 60 MMscfd) containing inlet separation, inlet/sales compression (4 reciprocating compressors totaling 15,000 hp), amine sweetening (CO2 and H2S removal), refrigeration, liquid fractionation and stabilization, acid gas compression, vapour recovery, recycle system, power generation (2 x 4.6 MW gensets), storage for produced water, condensate (275 bpd) and NGL (171 bpd) with truck-out facility.


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Musreau Phase 1 Gas Plant (45 MMscfd)

FEED and Detail Design for a gas plant which includes inlet separation, condensate stabilization, inlet/sales compression (5 reciprocating compressors totaling 10,000 hp), refrigeration, de-ethanizer, a vapour recovery, recycle system, storage for produced water, condensate (800 bpd) and NGL (912 bpd) with truck-out facility.


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Pouce South Sour Gas Plant (60 MMscfd)

FEED and Detail Design for a 2 process train gas plant containing inlet separation/slug catcher, inlet/sales compression (4 reciprocating compressors totaling 7,920 hp), amine sweetening (CO2 and H2S removal), refrigeration, condensate stabilization, acid gas compression, vapour recovery, recycle system, storage for produced water and condensate (390 bpd) and truck out facility.


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Debolt Frac Water Treatment Facility

The Debolt water treatment plant is a proprietary grassroots facility located approximately 20 KM south of the North West Territories border in the farthest reaches of northeast British Columbia. The EPCM project was completed to install a new water treatment plant at the existing Etsho compressor and dehydration facility. The scope of the project was to install a new sour produced water treatment plant including a stripping tower, a degassing tank, and a proprietary, confidential process to reduce the H2S content of the water to 0 ppm. The design capacity of the facility is 16,000 m3/d of inlet sour produced water.


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Tooga Gas Plant (60 MMscfd)

The new Tooga Gas Plant is a modularly designed facility specifically layed out for ease of transportation and assembly in a remote fi eld in north east British Columbia Canada. The Tooga Gas Plant is designed with a 60 MMscfd capability to handle inlet process gas containing 50 ppm H2S and 3.5% CO2. This plant was added to the Duke Energy compressor site; the initial facility was equipped with inlet separation, condensate blowcase, compression and dehydration to transmit sour process gas and condensate liquids through 22 km, 8 inch diameter pipeline to the Peggo Sour Gas Processing Plant. The new processing train includes inlet separation, inlet compression, amine sweetening, and dew point control refrigeration to transmit sales pipeline specification gas to the Peggo Gas Plant.


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West Doe Sour Gas Plant (100 MMscfd)

FEED and Detail Design for a sour gas plant with three process trains totaling 100 MMscfd with process gas conditions of 2.6% H2S and 3.0% CO2 from the Montney.

Facility includes containing inlet separation, inlet compression, amine sweetening, refrigeration, liquid fractionation and stabilization, acid gas compression, vapour recovery and recycle system, sales compression. Power generation includes one Solar Taurus 59 (4500 KW) genset and five 550 KW natural gas driven electrical generators). Also includes storage for produced water, condensate and NGL with truck-out facility.


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Pouce Coupe Sour Gas Plant (60 MMscfd)

FEED and Detail Design for 60 MMscfd gas plant including inlet separation, inlet/sales compression, amine sweetening (CO2 and H2S removal), refrigeration, liquid fractionation & stabilization, acid gas compression, acid gas blending, vapour recovery, recycle system, storage for produced water, condensate and NGL with truck-out facility.


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THIOPAQ Bio-Desulphurization

Equinox is the only Canadian EPCM and one of the few in the world to be an approved engineering service provider for detailed engineering design of sour gas and sulphur recovery projects with respect to the THIOPAQ Biological Desulphurization Process. This technology removes H2S from natural gas streams and converts it directly to elemental sulphur utilizing a naturally occurring, non-genetically modified microorganism from the Thiobacillus family. In Canada, Equinox provided the EPCM services for the first and only high-pressure natural gas applications including the Bantry Gas Plant (12 MMscfd, 1 t/d sulphur) and the Valhalla Gas Plant (2 MMscfd, 2 t/d sulphur).