Approach allows for robust, flexible valve protection

Jaime FarinasGary NunezTransierra SASanta Cruz de la Sierra, BoliviaA combination of simple ideas and application of standards from outside the oil and gas industry allowed fabrication and installation of structures robust enough to defend natural gas pipeline valves, but flexible enough to still allow for easy maintenance.In September 2008, an attack occurred on Bolivian Transierra SA's 432-km, 32-in. OD Yacuiba-Rio Grande (GASYRG) natural gas pipeline, damaging the pipeline and causing a fire in safety block valve SDV-03. The attack led to both environmental harm and reduced transportation capacity.With civil unrest causing blocked roads, closed airports, and a lack of spare parts, fuel...

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