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- W2807659802 abstract "Arrow Energy operates a fleet of four-stage reciprocating compressors in the Surat Basin, boosting low-pressure coal-seam gas (at 60 kPag) to transmission pipeline pressure (in excess of 9000 kPag). Historically, the compressors and the gas engine drivers exhibited persistent problems associated with high vibrations, inadequate engine and process gas cooling, poor compressor valve reliability and premature engine component failures. Hot Queensland summer conditions further exacerbated these problems, which resulted in frequent unit trips during hot periods when gas and electricity prices demanded consistent gas production at nameplate capacity. Since 2014, Arrow Energy has carried out systematic analytical studies to establish the compressor package component limitations and develop technical solutions to address these. Stub shaft-driven air coolers, compressor valves, gas engine heads and valves, compressor frame and crosshead mounting arrangements were some of the key components studied in detail. Utilising systematically designed field tests with laboratory calibrated test instruments, scale model laboratory tests, advanced computer simulations, data analytics and new technology trials, several key design modifications were implemented. The outcome of these design changes has enabled Arrow Energy to achieve a step-change in reliability for the better, with each reciprocating compression package (including gas engine driver) operating in excess of 98% reliability. The implemented changes were executed at minimal cost and resulted in significant reduction in maintenance costs. The increased reliability and consistent production during the peak summer hours easily justified the modifications made to the packages. This paper describes the technical work undertaken, changes implemented and their outcomes." @default.
- W2807659802 created "2018-06-13" @default.
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- W2807659802 date "2018-01-01" @default.
- W2807659802 modified "2023-09-27" @default.
- W2807659802 title "Significant reliability improvements in reciprocating gas compressor packages at Arrow Energy" @default.
- W2807659802 doi "https://doi.org/10.1071/aj17046" @default.
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