Amarinth has delivered four sodium hypochlorite dosing pumps manufactured in titanium alloy to ADMA-OPCO for use on the Umm Lulu Development Project offshore of Abu Dhabi.
Amarinth were approached by Cumberland to tender for the pumps on a tight 24 week delivery for the Umm Lulu platform. Sodium hypochlorite is highly corrosive and so traditional super-duplex materials cannot be used. Cumberland had considered using plastic components on the pumps but ruled that out due to known reliability issues and failure rates and so Cumberland was seeking a solution to this challenging problem.
To minimize corrosion from the sodium hypochlorite, Amarinth proposed using titanium alloy for all wetted parts, including the casing, impeller and shaft.
Amarinth was able to source the titanium required through its supply chain and then worked closely with its foundry in Sheffield, United Kingdom, casting the components. Titanium is difficult to cast and the process has to be very carefully controlled using the latest technologies, pushing the limitations of current manufacturing methods.
The four titanium pumps have now been successfully manufactured and assembled and will be commissioned on the offshore Umm Lulu platform during H1 2016.
The Umm Lulu field is located in the Arabian Gulf 30 km northwest of Abu Dhabi, UAE. It is being developed as part of a strategic initiative to pump 1.75 MMbbl/d by 2017, increasing Abu Dhabi's total crude oil production to 3.5 MMbbl/d.
Image: Titanium pump/B6 Solutions Ltd.
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