Modular Compact Pump

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To date, more than 100 subsea boosting systems have been deployed globally. Broad adoption, however, has been low due to the capital expenditure for conventional boosting systems, along with topside space and weight constraints. BHGE’s Modular Compact Pump (MCP), a barrier-fluid-less pump, significantly reduces requirements on topside space by up to 50% and simplifies the umbilical. The MCP’s reduced weight means that smaller vessels can be used for installation and intervention. The design consists of modules of independently controllable stages, with integrated motor-impellers rotating around a static central shaft. This avoids the rotodynamic issues associated with conventional pumps, as well as the need for a mechanical seal, thereby compensating for stage loss and maintaining production. The modules can be stacked and built into larger systems depending on process needs, with a typical pump stacking between four and 24 stages, giving a pump power ranging from 1 to 6 MW. Within the 1-3MW range, the pump’s footprint is of a size that allows it to be tree-mounted in configuration, ready for use with BHGE’s Lightweight Compact Subsea Tree. MCP is part of a suite of BHGE products aimed at lowering total expenditure across the life of the field. It is being developed under a joint industry project with several global operators and The Research Council of Norway.

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