Robin Street & Ken Allan, WorleyParsons Europe Limited, UK
Over the last 15 years, oil production at Tengizchevroil’s facility in Tengiz, Kazakhstan has steadily increased and today it has the potential to produce nearly 600,000 bpd. Given the highly sour well fluids, sour gas processing, sulphur recovery and sulphur management have been key factors in the expansion of oil production at Tengiz.
The most recent expansion at Tengiz boasts the world’s largest single-train sour crude processing, which includes a single-train 2350 t/d sulphur recovery and tail gas treatment unit. This paper describes the background to the project, discusses the design implications of a large single-train option and highlights some of the challenges faced whilst executing a worldscale project in Kazakhstan.
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