Obsidian Engineering brings over 150 years of project experience ranging from large diameter pipelines to gas processing plants and transmission compression installations. We are able to assemble a team fronted by experienced personnel for any project scope while maintaining a lean structure with low overhead. 

$65 MILLION TIC 

Green field gas plant with a rated inlet capacity of 100 MMscfd. Equipment installed

included propane refrigeration, condensate stabilization, NGL storage, compression,

inlet separation and utility system.

$65 MILLION TIC 

Greenfield gas plant with a rated capacity of 100 MMscfd. Equipment installed included inlet

compression, propane refrigeration, sales compression and NGL storage.

$60 MILLION TIC 

Expansion project to increase both capacity and liquids recovery. Process included liquid

recovery (de-ethanizer, stabilizer), lean oil absorber, 3000HP refrigeration compression.

All process and utility heat provided by a steam heating system.

$55 MILLION TIC 

Brownfield 100 MMscfd sweet gas plant expansion to an existing sour gas processing plant.

Installed equipment primarily included engine-driven propane refrigeration package and

utility heat package.

LEUCROTTA EXPLORATION: $7.5 MILLION TIC 

Inlet expansion consisting of 3-phase separation and 2370 HP engine driven compression.

J-T plant assessment included review of the impact of higher temperature feed gas vs. previous

operation involving a blended inlet (compression and high-pressure inlet pipelines).

Optimized J-T plant operating parameters considering the associated increase in liquid rates

and higher stabilizer overheads flow to maintain target sales hydrocarbon dewpoint.

$20 MILLION TIC 

Various compressor stations, designed for 6 to 12 MMscfd (2 stage units, up to 1500HP-Waukesha

7042’s). Stations were pre-fabricated and modularized, flexible to be easily duplicated and moved if

necessary. Stations included a single inlet separator, single compressor (2-stage), single dehy unit, flare

stack & office building. Design accommodated spacing requirements for AB, BC & SK.

$35 MILLION TIC 

Greenfield 60MMscfd (designed for future expansion to 120 MMscfd) Compressor Station and Refrige

Plant located in Columbia field of Alberta. Consisted of Inlet Separation, de-ethanizer, de-butanizer, inlet

compression (2 x Caterpillar 3612LE – 30 MMscfd ea.), refridge compression (1 x Caterpillar 3512 TALE),

sales compression (1 x Waukesha L7044GSI – 60 MMscfd), condensate pumps, liquid storage tanks, VRU,

flare equipment and office building.

$55 MILLION TIC 

DESIGNED COMPRESSION HP: 10,000 HP (RECIPROCATING)

Greenfield compressor station with a design throughput of 40 MMscfd, expandable to 80 MMscfd and

with provisions for a low pressure/booster inlet. Facility design included condensate handling considering

a design ratio of 200 bbl/MMscf. Installed compression equipment included Waukesha L7042 and P9390

engine-driven package.

$90 MILLION TIC 

DESIGNED COMPRESSION HP: >22,000 HP (TURBINES) 

Brownfield compressor station expansion involving the installation of two Solar T70 turbine-driven

centrifugal compressor sets with rated capacity of 292 MMscfd each.

700 km of NPS 10 ethane pipeline through Alberta, Saskatchewan & North Dakota

36 block valve sites & 2 pump stations.

105 km of NPS 4 liquid ethane pipeline & 75 km of NPS 8 gas pipeline in southeast

Saskatchewan. Lines in common ditch & included HDD of Souris River/ Rafferty Dam.

30km of NPS 24, NPS 12, and NPS 6 of natural gas, oil effluent and

water pipelines in Groundbirch, BC. HDPE liner system design for all water pipelines.

Over 20 km of NPS 24 bitumen blend pipeline & NPS 12 diluent pipeline

near Fort Saskatchewan, Alberta. Riser sites, facility tie-ins and rail terminal meter station.

Over 10 km of insulated NPS 20 bitumen and NPS 16 feedwater

pipelines near Fort McMurray, Alberta. Included several complex drills, hot taps and associated facility tie-ins.

Approximately 70 km of dual NPS 24 natural gas pipelines near

Cochrane, Alberta. Included associated risers and facility tie-ins.

4.5 km of NPS 24 condensate pipeline near Fort Saskatchewan, Alberta

Metering manifold for several pipelines ranging from NPS 12 – NPS 30.

Two 8″ section of pipeline that needed to be re-routed to accommodate

the ring-road project. Two road crossings utilizing casing and concrete slab design.