Abstract

ABSTRACT Ever increasing water production and more stringent environmental standards have driven up the cost of produced water disposal. What was once a small consider-ation in the design of production facili-ties has become a high profile and costly component of offshore production projects.The large space and weight requirement for conventional produced water treatment (PWT) systems (skim tanks,CPI's and flotation cells) could have a large nega-tive impact on the overall economics of a deep water development. Recent advances in static hydrocyclone technology for PWT has added an attractive alternative to conventional systems.In 1985,Conoco installed a small hydrocyclone PWT system on the Murchison platform in the North Sea. The success of that first pilot system has lead to the expanded use of the technology in other locations in the North Sea and the Arabian Gulf. With the experience gained from the design, testing and ex-tended operation of these systems, Conoco has developed a high level of confidence in defining the capabilities and limits of hydrocyclone PWT systems, and the economic benefits possible when applied to offshore projects.

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