Skip to main content

Piñon Midstream expands Dark Horse treating facility

Published by , Editorial Assistant
World Pipelines,

Piñon Midstream, LLC has announced additional expansions to its sour natural gas treating and carbon capture facility located in Lea County, New Mexico, USA.

The Dark Horse Facility provides a state-of-the-art, purpose-built, sour natural gas treating and carbon capture solution for oil and natural gas producers operating in the Delaware Basin. The facility reduces the environmental impact of oil and natural gas operations in the region through the capture and permanent sequestration of both carbon dioxide (CO2) and hydrogen sulfide (H2S), with over 100 000 t of CO2 and H2S sequestered to date. The current facility and associated infrastructure include two 400 GPM amine treating units, two 18 000 ft deep AGI wells, ~50 000 hp of fully NACE compliant compression, and ~35 miles of high-pressure gathering and redelivery pipelines.

Independence AGI #2 in-service

Piñon placed its second AGI well, Independence AGI #2, into service in April 2023. The addition of this second AGI well allows for an increased treated AGI capacity of up to 20 million ft3/d, which is sufficient to accommodate up to 500 million ft3/d of treating capacity at the Dark Horse Facility. Additionally, this well ensures full operational redundancy, ensuring high runtimes while minimising flaring. The AGI injection capacity of Piñon's sour natural gas treating system in New Mexico is the largest of any permitted, active system in the state.

Train III construction and Train IV update

Piñon is increasing the sour gas treating capacity of its Dark Horse Facility by ~50%, to ~270 million ft3/d, with the addition of Train III. Construction of Train III is expected to begin in 3Q23, with a planned in-service date of January 2024. Additionally, Piñon has initiated engineering work for Train IV.

Compression expansion

Piñon currently operates four fully NACE compliant compressor stations with ~200 million m3/d of total compression capacity. Additionally, two compressor stations will be placed into service in 2024, bringing Piñon’s total compression capacity to ~350 million m3/d.

Growing sweet natural gas operations

Piñon’s gathering and treating system includes the Grande sweet gas redelivery pipeline, consisting of 22 miles of high-pressure, 20 in., steel pipe connecting the Dark Horse Facility with four existing major regional processors. Piñon is actively evaluating other interconnects with third-party processors to add additional flow assurance and customer flexibility. Additionally, Piñon now provides tailored solutions that enable customers to source sweet natural gas directly from the Grande pipeline system. This solution gives customers a cost-effective and reliable method to optimise their gas lift operations.


Read the latest issue of World Pipelines magazine for pipeline news, project stories, industry insight and technical articles.

World Pipelines’ June 2023 issue

In the June 2023 issue of World Pipelines, we cover hydrogen pipeline transport; pipeline sensing, composite coatings and inline inspection. Also featured are articles on metering and monitoring, and subsea pipelines.

Read the article online at:

You might also like

Sulmara launches new Route Development business line

The business line will see industry experts provide a wide range of support from the planning and design stage of projects right through to the operational phase of subsea cables and pipelines.


Embed article link: (copy the HTML code below):


This article has been tagged under the following:

US pipeline news Natural gas pipeline news