Acid-gas injection in New Mexico relieves sulfur-recovery unit duty

The original acid-gas injection project near DCP Midstream’s Artesia, NM, gas plant started up in November 2003 and consisted of drilling an injection well and installing an acid-gas injection compressor. The project’s initial aim was to eliminate use of the plant’s sulfur-recovery unit to reduce operating costs, improve safety, and enhance environmental performance.The injection horizon is the Devonian formation at 11,500 ft. The compressor is a six-stage, electric-motor-driven, reciprocating unit. The acid-gas design volume is 1.5 MMscfd of water-saturated gas at 2-8 psig suction pressures and up to 2,000-psig discharge pressure. The design composition of the acid gas ...

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