Sistema Nacional de Gasoductos (SNG)

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Mexico's Sistema Nacional de Gasoductos is an operating gas pipeline network in Mexico.

Location

The pipeline starts near Ciudad Juarez, Chihuahua on the United States-Mexico border and runs south-southeast to the Ciudad Pemex gas processing complex in Tabasco state on the Yucatán Peninsula.

The main pipeline passes through compressor stations at Gloria a Dios, El Sueco, Chavez, Santa Catarina, Ramones, Soto La Marina, Altamira, Cempaola, Chinameca, and Cárdenas.

Branch pipelines run off the main pipeline, connecting it to Lázaro Cárdenas and Salina Cruz on Mexico's Pacific coast, and to Reynosa, Tamaulipas on the US-Mexican border; the latter spur passes through metering station No. 19 just west of Reynosa.

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Project Details

• Operator: Cenagas
• Owner: Cenagas
• Parent company: Federal government of Mexico
• Capacity: 51.68 bcm/y (5000 MMcf/d)
• Length: 8611 km / 5350 miles
• Diameter: 4 to 48 inches
• Status: Operating
• Start Year: 1999

Background

The Sistema Nacional de Gasoductos (SNG) is Mexico's state-run system of gas pipelines, extending for 8611 kilometers throughout much of Mexico. Since 2015, the system has been owned and operated by Cenagas (Central de Control del Gas Natural), a public agency under the jurisdiction of Mexico's Secretary of Energy, entrusted with guaranteeing the continuity and security of Mexico's natural gas supply. The system runs from the United States-Mexico border to the Yucatán Peninsula, with branch lines running west through the country's interior as far as the Pacific coast, and with connections to several privately operated pipelines.

Following the discovery of natural gas in Mexico in 1945, the national petroleum company Pemex began developing a system of gas pipelines. By the end of the 1960s there were already more than 4000 kilometers of pipeline, and by 1999, when the Mexican government officially established the Sistema Nacional de Gasoductos, the system had grown to 8704 kilometers.

Main points where gas is injected into the system include the gas processing centers at Ciudad Pemex, Nuevo Pemex, Cactus and La Venta in Tabasco state. Gas is also imported into the system at Ciudad Mier, Camargo, Argüelles and Reynosa along the United States-Mexico border in Tamaulipas state, and via the LNG terminals of Altamira on Mexico's Gulf coast and Manzanillo on the Pacific coast.