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of 177cu m/hr, and could operate at continues to press forward to solve its a maximum differential pressure of deepwater operational problems and 70bar. thereby help the industry extend its

Barracuda feld was chosen to test production capability into ever deeper the prototype pump. The Campos water, deeper reservoirs, and more basin project tied-back Barracuda to challenging production scenarios.

Caratinga feld, whose FPSO P-48 had suffcient capacity to handle the fow

Helico-axial multiphase pumps (HMPP) from Barracuda. The felds are in water

FURTHER READING use a series of rotating impellers and 600-1300m deep and are about 10km diffusers to increase fow pressure. (6.2mi.) apart. The HMPP is positioned

OTC 24263, Evolution of Subsea

FRAMO, a Schlumberger company, to on the seabed in water 1040m deep,

Boosting, A Review of Pas and Present produce an HMPP that can withstand 330m from the producing well.

Projects; P. Luce, J. Michaelson and N. differential pressures up to 60bar. The HMPP was installed and began

Solvik.

HMPPs use a series of rotating operations 14 July 2012. The initial impellers, separated by diffusers, fuid fow was 3000cu m/d with a

OTC 24161, Subsea Processing Systems:

Future Vision; F. Albuquerque,etal.

which together increase fow pressure pressure differential of 60bar and a gas to move produced fuids. The design volume fraction of 45%. The pump

OTC 24201, Mudline ESP: Electrical overcomes gas-locking by keeping worked as expected and raised produc-

Submersible pump installed in a Seabed gas and liquids mixed as they move tion by 1000cu m/d (6290b/d), a 40%

Skid; M. Roberto, P. Oliveira, and B. Pyramo.

through the pump, Figure 2. A new increase compared to natural fow from

OTC 24167, Albacora Subsea Raww Water high-boost HMPP was designed by the well. Reliability has been 100%,

Injection Systems; L. Bulk etal.

modifying the impeller and diffuser despite 11 shutdowns during commis-

OTC 24217, Barracuda Subsea Helico- geometries, as well as the pump speed sioning and personnel training, with aAxial Multiphase Pump Project; C. and fow rate, taking into account the no need for hydrate treatments.

Kuchpil etal.

feld’s gas fraction and 20cP crude The extension of HMPPs operational

OE, Draugen: Exceeding Expectations, oil viscosity. The fnal HMPP had 13 envelope opens many new applica-

Odin Estensen;June 2013, pp. 35-37.

stages for a 14cP fuid with an intake tions for this technology. Petrobras 2013Offshore_ExploreAd_Layout 1 1/8/13 2:16 PM Page 1

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