TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Multiphase Pumping ? a Solution for Managing Pressure in an Offshore Production System
(Universitatea Petrol-Gaze din Ploiesti E-mail: mradulescu@upg-ploiesti.ro)
Vol LX • No. 4/2008
Mariea Marcu
Universitatea Petrol-Gaze din Ploiesti
E-mail: mradulescu@upg-ploiesti.ro

 Keywords   subsea production system, multiphase pumping, artificial lift, well

 Abstract
The subsea production systems are obviously installed in the deep and ultra deep water with the difficult temperature and pressure conditions. The host platform is located to a distance of many kilometers, and the elevation between the subsea wells and the host platform has few hundred meters. In this case the wellhead pressure must be maintained high for overcome the backpressure added by the pipeline, and as the consequence the production rate of the well is lowered.
Consequently we analyzing the multiphase pumping and the artificial lift methods applied to the subsea wells for flow boosting, and optimizing the parameters of the well operating regime.

 Rezumat
Sistemele de producţie submarine sunt de obicei instalate în ape adânci şi foarte adânci cu condiţii dificile de temperatură şi presiune. De asemenea, platforma de procesare de cele mai multe ori este localizată la o distanţă de mai mulţi kilometrii, iar elevaţia dintre sondele submarine şi platforma de procesare poate fi de câteva sute de metrii. În acest caz presiunea în capul de erupţie al unei sonde trebuie sǎ fie menţinută la valori mari pentru a învinge contrapresiunea statică şi în consecinţă debitul sondei este scăzut.
Prin urmare, în lucrare se analizează pompajul multifazic şi metodele de liftare artificială aplicate la o sondă submarină pentru mărirea presiunii de curgere a fluidelor produse de aceasta. şi optimizarea parametrilor regimului de funcţionare al sondei.



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