Currently in construction, this new sour gas processing plant is designed to process 75 MMSCFD. The facility expansion will process incoming sour gas from the 13-16 Valhalla compressor station in addition to the existing production from the 4-21 field. The project will include the following major equipment: • Inlet separator • Amine gas sweetening package • RO skid for amine makeup water • Process refrigeration package This project has a scheduled completion date of 2026.

This four-phase project was a decade-long collaborative partnership, ultimately delivering hundreds of millions of cubic feet per day of processing capacity. ABC Engineering delivered end-to-end services covering Pre-FEED, FEED, detailed engineering, procurement, fabrication and construction/site management for all phases of this project. All facilities were designed and constructed in accordance with applicable codes and underwent extensive inspection by the OGC and Technical Safety BC (formerly BCSA) to ensure full regulatory compliance and secure leave-to-open and operating permits. What is unique to this project is the client’s commitment to protecting water resources. The plant reuses 100% of its generated water and is treated to be reused within the facility. Phase I: • Total inlet capacity of 75 MMSCFD • Key equipment installed included two inlet separator packages, a skid mounted hydrocarbon dewpoint control plant (HDCP), a condensate stabilizer package, and natural gas compressors. Phase II • Total inlet capacity of 150 MMSCFD (75 incremental from Ph III) • Key equipment installed included a skid-mounted hydrocarbon dewpoint control plant, sweet service gas compression packages, and a sweet condenser stabilizer skid package. Phase III • Provide an additional processing capacity of 125 MMSCFD sweet inlet gas. • The Phase III construction will provide the necessary infrastructure to easily expand the facility to 250 MMSCFD sweet inlet gas in the future. • Produced water from the facility is level controlled to storage tanks and then pumped to the water treatment facility off site utilizing the existing storage and transfer infrastructure. • This phase is a standalone plant with a dedicated control room, new control system, separate utilities, dedicated inlets and sales metering. • The plant shares the existing tank and bullet farms in Phase I & II for produced water, condensate and LPG storage. Phase IV • Scope includes a total inlet capacity of 250 MMSCFD of sweet inlet gas to the existing Altares Phase III facility. • Designed with provisional space for the installation of future carbon capture equipment, as well as for additional compression which will see production increase to 150 MMSCFD.

While similar in nature to a previous project - Bilbo Compressor Station - Wapiti featured a significantly larger & more complex scope and was executed through a multi-phase plan. Located near Grande Prairie, AB, this sour gas compressor station had an initial two-phase build that was designed for a capacity of 80 MMSCFD. Initial start-up was designed to process a capability of 40 MMSCFD in 2015. A second dehydration plant was added to increase processing capacity as gas volumes increase. Phase II was split into two stages. The total gas processing capacity pushed to 85 MMSCFD and eventually 115 MMSCFD in Phase II-2. Key project highlights: • Initial two-phase build resulted in a capacity of 80 MMSCFD. • Capacity pushed to 85 MMSCFD and eventually 115 MMSCFD in Phase II-2. • The project scope included inlet compression, TEG dehydration, condensate sweetening and stabilization, condensate conditioning, large tank farms, and compressor-engine process heat recovery.

Construction for Pipestone North Battery started in early 2020, coinciding with the onset of a global pandemic which posed unique challenges. Our team was able to adapt quickly to enhance safety protocols, ensuring consistent and transparent communication with all stakeholders, keeping this project on track and within budget. Even at the height of COVID-19, we upheld our commitment to delivering this project reliably and on time. This new sour gas plant located near Grande Prairie, AB, was built to have a capacity of 100 MMSCFD. After minor modifications, the plant capacity was upgraded to 130 MMSCFD. The scope of the project included two sour gas process compressors, one dehydration plant, one condensate stabilizer package, and two recycle compressor packages.

Located west of Grande Prairie, AB, this sour gas handling facility features 900 ANSI gas and condensate sales pipelines. This facility was initially constructed as a 40 MMSCFD facility at start-up with infrastructure sized to accommodate 100 MMSCFD in its final build. Our scope of work included the installation of inlet compression, TEG dehydration, condensate sweetening and stabilization and condensate conditioning, and large tank farm. The facility was equipped with 1 MW of on-site power generation to ensure reliable operation in all conditions. Key project highlights: • Total processing capacity of 100 MMSCFD • Key equipment installed included ariel sour gas compressors and a sour condensate stabilizer.

This deep cut processing plant involves a complex approach utilizing refrigeration technology, acid gas disposal, and more – resulting in increased plant efficiencies and production output. The design and process of this project is very similar to the existing c-38 gas plant that is located close by to the c-46 location. This plant combines an amine sweeting process to reduce the H2S content of the gas and a conventional refrigeration process that will condition gas for dewpoint control as well as produce an LPG product. Key project highlights: • Total inlet capacity of 100,000 MMSCFD. • Deep cut system featuring cold box, turbo expander, and cryogenic demethanizer tower. • Dramatically improved recovery of C3 and C4 resources. • Key equipment installed included an amine sweetening facility, stabilizer reboiler, and an acid gas compressor. • Scope of services included: Pre-FEED, FEED, detailed engineering, procurement, fabrication, construction management, and support. • Phase II of the project included the installation of a turbo expander design, with an increased inlet gas capacity of 180 MMSCFD.

Located in the Montney area of northwest AB, our team’s scope of work for the Bilbo Compressor Station included engineering design, facility integration and commissioning support. Our support extended well beyond the facility hand-off. Because the fluids processed at the Bilbo facility had high salinity and were corrosive to the equipment, we provided post-project assistance to help retrofit the facility accordingly. Through close collaboration with NuVista, we delivered this project on time and on budget. Key project highlights: • Project was initially built to a capacity of 40 MMSCFD. • Capacity scaled up to 80 MMSCFD during the second phase. • Key equipment installed in Phase I included LE sour compressor packages, skid mounted glycol DEHY, skid mounted condensate stabilizer package, a skid-mounted sour condensate conditioner package and a heat medium package. • Phase II addition included the installation of a three-stage natural gas compressor.

Located in the Montney in northeastern BC, ABC Engineering helped build this natural gas processing facility - a greenfield project that we then continued to enhance through a series of ongoing upgrades for optimal efficiency and output. Phase I: • Total inlet gas capacity of 50 MMSCFD. • Key equipment installed included a skid mounted gas sweetening facility (40 MMSCFD), a skid mounted & house sour condensate stabilizer package, a skid mounted & house refrige package, a sour inlet separator and sour gas compressor packages. • Scope of services included: Pre-FEED, FEED, detailed engineering, procurement, fabrication and construction management & support. Phase II: • Total inlet gas capacity of 100 MMSCFD. • Key equipment installed included an amine sweetening facility, a stabilizer reboiler, and an acid gas compressor. • Scope of services included: Pre-FEED, FEED, detailed engineering, procurement, fabrication and construction management & support. This project was completed a month ahead of schedule and on budget.