Gillis Amine Plant: Phase I and II

Facilities

LOUISIANA

Project Overview

Evers & Sons provided full field installation services for the Gillis Treating Plant, a core component of Momentum Midstream’s NG3 Project— a 1.7 Bcf/d natural gas processing plant linking the Haynesville Shale to Gulf Coast LNG markets.

Amine System – Key Equipment (Per Train):

(3) Amine Contactors
(3) Treated Gas Coolers
(3) Inlet Skids
(3) Amine Circulation Pumps
(6) Lean Amine Coolers
(1) Amine Flash Drum
(1) Amine Charcoal Filter
(1) Reflux Skid
(1) Amine Surge Tank
(3) Heat Medium Heaters
(2) Amine Reboilers
(2) Regen Still Towers
(4) Reflux Condensers

BOP Mechanical Equipment – Key Equipment:

(1) Inlet Separator
(8) TEG Dehy Packages
(5) CO₂ Screw Compressors | (2) CO₂ Recip Compressors
(2) CO₂ Dehy Packages | (4) BTEX Scrubber/Cooler Packages
(1) Flare
(1) BTEX Flare
(1) RO Water Treatment System | (1) Instrument Air Skid
(1) 210 BBL Amine Storage Tank | (5) 750 BBL Closed Drain Tanks
(3) 750 BBL Raw Water Tanks | (3) 750 BBL RO Water Tanks
(3) Cummins Powered Backup Generators
(3) PDC Buildings

Scope of Work:

Installation of ± 60,000 LF of prefabricated pipe (2”–36”)
± 145,617 field weld inches
± 5,791 pre-fabricated pipe spools
± 20,000 LF of interconnect piping
± 570 tons of structural steel fabrication and erection
± 1,500 CY of concrete
Flange torquing (4,355 flanges)
QA/QC management and job books
Oversight of I&E partner

Additional Scope:

Turnkey Sub Station Construction
Control Room & Office Building
Warehouse

This greenfield facility serves as the core of NG3’s carbon capture and gas treating system, integrating CO₂ amine treating, dehydration, and compression to deliver clean natural gas while maintaining a net-negative CO₂ emission profile.

Evers & Sons provided full field installation services for the Gillis Treating Plant, including construction of an 8,000 GPM amine treating facility, a core component of Momentum Midstream’s NG3 Project linking the Haynesville Shale to Gulf Coast LNG markets. The facility was originally designed for 1.7 Bcf/d of throughput, with the expansion incorporating additional equipment to increase total processing capacity to approximately 2.3 Bcf/d.

PHASE I:

Amine System – Key Equipment (Per Train):

(3) Amine Contactors
(3) Treated Gas Coolers
(3) Inlet Skids
(3) Amine Circulation Pumps
(6) Lean Amine Coolers
(1) Amine Flash Drum
(1) Amine Charcoal Filter
(1) Reflux Skid
(1) Amine Surge Tank
(3) Heat Medium Heaters
(2) Amine Reboilers
(2) Regen Still Towers
(4) Reflux Condensers

BOP Mechanical Equipment – Key Equipment:

(1) Inlet Separator
(8) TEG Dehy Packages
(5) CO₂ Screw Compressors | (2) CO₂ Recip Compressors
(2) CO₂ Dehy Packages | (4) BTEX Scrubber/Cooler Packages
(1) Flare
(1) BTEX Flare
(1) RO Water Treatment System | (1) Instrument Air Skid
(1) 210 BBL Amine Storage Tank | (5) 750 BBL Closed Drain Tanks
(3) 750 BBL Raw Water Tanks | (3) 750 BBL RO Water Tanks
(3) Cummins Powered Backup Generators
(3) PDC Buildings

Scope of Work:

Installation of ± 60,000 LF of prefabricated pipe (2”–36”)
± 152,171 field weld inches
± 7,500 pre-fabricated pipe spools
± 800 tons of structural steel fabrication and erection
± 2,900 CY of concrete
Flange torquing (5,275 flanges)
QA/QC management and job books
Oversight of I&E partner
Number of welds: ±6,200

Additional Scope:

Turnkey Sub Station Construction
Control Room & Office Building
Warehouse

PHASE II: Expansion Scope

(2) 5000 HP Electric Drive Residue Compression – (Residue compression increases capacity to 2 Bcf/d)
(2) H2S Treating Units for CO₂ Stream Treating
(1) CO₂ TEG Dehydration Unit