Copperhead AGI

The Copperhead carbon storage project is an underground acid gas injection and carbon storage operation developed by Targa Midstream Services at the Copperhead Gas Processing Facility in Lea County, New Mexico, located within the Delaware Basin portion of the Permian Basin. The project centers on the Copperhead AGI #001 injection well, designed to dispose of treated acid gas generated from natural gas processing operations. The injectate stream is expected to consist of approximately 70 percent carbon dioxide and 30 percent hydrogen sulfide, with injection occurring into deep subsurface formations between roughly 17,299 and 18,689 feet depth beneath multiple confining layers. The project has a planned operating life of approximately 30 years with an additional post-injection monitoring period of 15 years. Maximum injection rates are designed at up to 26 million standard cubic feet per day, with monitoring systems in place to track pressure, leakage risks, groundwater protection, and surface emissions under EPA Subpart RR monitoring, reporting, and verification requirements. The project utilizes a Class II acid gas injection well permitted by the New Mexico Oil Conservation Division and incorporates continuous monitoring, seismic surveillance, groundwater sampling, and soil CO₂ flux monitoring to verify long-term containment and quantify the volume of CO₂ geologically sequestered.