Abstract

In a brown field modification, increasing the capacity of a compressor station from 200 MMSCFD to 350 MMSCFD mandates replacement PSVs at the compressors discharge which in turns leads to excessive flare load and large capital investment. As per the production profile the production rate will sustain at this level for 1.5 to 2 years and then will sharply decrease to a turndown rate of 125 MMSCFD. Considering the short term utilization and the large capital investment to upgrade existing flare network an alternative solution was sought of by introducing a non-conventional design of HIPPS. Introducing this solution, reduction in shutdown duration up to 50% and saving in capital investment by approximately 30 to 40% of project cost the target have been achieved

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