INDUSTRY LEADERS
OF PROVEN CO₂ DESIGN IN ALBERTA
What We Do
Obsidian is one of Canada's most experienced engineering firms in the field of carbon capture, transportation, and sequestration. From capture through dense-phase CO₂ transmission to injection well integration, we deliver full-scope CCS projects supported by strong technical expertise and a thorough understanding of the regulatory requirements.
CO₂ PIPELINES
Dense-phase design, construction & operations
From route selection and hydraulic modelling, through material specification, above-grade assembly design, and on-site construction support, we deliver CO₂ pipelines that are built to CSA Z662.
Thermo-hydraulic modelling
Transient & blowdown analysis
Material specifications
Custody transfer metering
Commissioning support
Operating procedures
CO₂ FACILITIES
From capture to injection
Upstream facility design for CO₂ capture, compression, and dehydration. Our experience also includes metering, pumping, and injection wellsite design. Our technology selection studies help clients choose and deploy the right system for Canadian conditions.
Compression & dehydration
Direct air capture / Pre & Post-combustion
Amine / Membrane / PSA
Technology selection
EU/US design adaptation
CO₂ EXPERTISE
Standards, regulatory & technical depth
We sit on the CSA Z662 CO₂ Task Force as Workgroup Lead. This involvement helps us develop designs that are optimized, fit-for-purpose, aligned with the evolving Canadian standards framework. Backed by a team of CO₂ engineering specialists and full in-house multidisciplinary execution across every project phase.
CSA Z662 CO₂ Task Force - Workgroup Lead
Dispersion modelling support
Fracture control plans
Corrosion mitigation strategies
Compositional monitoring
Carbon Capture — Pipeline Projects
DENSE-PHASE CO₂ PIPELINE
CO₂ TRANSPORTATION & METERING
Provided full-scope engineering design, procurement, and construction support, inclusive of on-site field engineering, for 38km of NPS 10 and 12 pipeline designed to Class 1500.
Project included pigging infrastructure, block valve sites, metering, compositional monitoring, overpressure protection (OPP) design, and third-party tie-ins.
CENTRAL ALBERTA CARBON HUB
CO₂ TRANSPORTATION, METERING & SEQUESTRATION
Obsidian has provided front‑end engineering design (FEED) and total installed cost (TIC) estimating support for a large‑scale carbon capture and storage hub in Central Alberta. The system is designed for an initial capacity of 1.24 MTPa with provisions for future expansion to 2.7 MTPa.
Scope of work includes pipeline infrastructure comprising of approximately 23 km of NPS 12, along with associated pigging facilities, inlet metering and compositional monitoring station design, and the design of three injection well sites. Additional services included dispersion modelling support, fracture control plan development support, well site downhole hydraulic modelling and pipeline thermo-hydraulic modelling to support safe start-up, shutdown, and upset scenarios.
CENTRAL SASKATCHEWAN CARBON HUB
CO₂ TRANSPORTATION, METERING & SEQUESTRATION
Obsidian has completed a feasibility study and total installed cost (TIC) estimating support for a large‑scale carbon capture and storage hub in Central Saskatchewan. The system is designed for an initial capacity of 1.1 MTPa with provisions for future expansion to 2.2 MTPa.
Scope of work includes pipeline infrastructure comprising of approximately 70 km of NPS 10 pipeline, along with associated pigging facilities, inlet metering and compositional monitoring station design, and the design of five injection well sites for phase 1, and up to 9 injection well sites for phase 2. Additional services included dispersion modelling support, fracture control plan development support, well site downhole hydraulic modelling and pipeline thermo-hydraulic modelling to support safe start-up, shutdown, and upset scenarios.
CO₂ PIPELINE & INJECTION FACILITY
CO₂ TRANSPORTATION
Obsidian delivered FEED and detailed design of a 60 km, NPS 10 dense-phase CO₂ pipeline connecting a major facility to an existing injection site in central Alberta.
Our integrated scope covered multidisciplinary design for pipeline, injection, facility tie-in and valve sites, regulatory and dispersion modelling support, route optimization, constructability reviews, line pipe specifications (fracture study), material procurement, and project management, project controls, contracting, and construction management support.
DENSE-PHASE CO₂ PIPELINE & CCS FACILITY
CO₂ TRANSPORTATION, METERING & SEQUESTRATION
Obsidian delivered FEED engineering for a 28km NPS 6 dense-phase CO₂ pipeline and injection well pads in Saskatchewan.
The scope included full electrical, controls, and safety system integration, ESD valves, metering, blowdown system design and DCS tie-in with the existing system. We also supported pipeline design, including hydraulic analysis, to support operating procedure development, as well as product specification review (i.e. water content limits), design basis development, procurement support, and vendor documentation.
Carbon Capture — Facility Projects
DIRECT AIR CAPTURE (DAC) PROJECTS
Engineering support across multiple DAC projects, including facilities, injection wells, and conceptual studies. Experience includes adapting internationally designed systems for Canadian regulatory and climatic conditions.
CSA, ABSA, and provincial compliance reviews for European and US-designed equipment
CRN registration strategy and provincial regulatory coordination
Engineering authentication across all disciplines
Winterization assessments and equipment substitution guidance
General engineering including FEED and pilot project scale-ups.
CO₂ TECHNOLOGY SELECTION
Independent, engineering-led assessments to help clients evaluate and select fit-for-purpose CO₂ processing and infrastructure solutions, from source facility requirements through transportation and injection.
Facility & Technology Selection: Evaluation of capture, purification, dehydration, and compression technologies based on feed composition, capacity, operating conditions, and project-specific requirements.
Pipeline Interfacing: CO₂ specification development, material selection, fracture control, hydraulic performance, transient conditions, and blowdown requirements that influence facility design.
Injection Requirements: Evaluation of compression, metering, pressure control, product quality, and wellpad integration requirements for sequestration or EOR applications.
We don't just follow CO₂ standards. We write them.
CSA Group is a global leader in safety, sustainability, and standards development — and Obsidian Engineering holds an active seat at the table where Canada's CO₂ pipeline standards are being shaped.
This involvement strengthens our understanding of current and emerging industry practices, helping us develop designs that are technically sound and aligned with the evolving Canadian standards framework.
CSA Z662 Design Technical Subcommittee
Active member since April 2023, contributing to the development of Canada's primary pipeline design standard.
CSA Z662 CO₂ Task Force — Workgroup Lead
Served as Workgroup Lead since the Task Force's inception in October 2023, giving us first-hand knowledge of emerging Clause 18 CO₂ requirements for CSA Z662:2027.
Carbon Capture Canada is the country’s largest CCUS convention, and Obsidian Engineering has proudly attended and exhibited at the conference for several years, demonstrating our strong commitment to supporting and contributing to Canada’s growing CCUS ecosystem.
Back for 2026! — Join us in Edmonton from September 15-17 and visit us at Booth 92 to connect with our team! Learn More: https://www.carbonexpocanada.com/
Ready to advance your
carbon project?
Whether you're at Pre-FEED, developing a capital cost estimate, evaluating capture technology, or need an independent review of your CO₂ system — talk to the team that has done it before.