Exploration • Drilling • Field Services
Fig. 1. The Pipe-Pulse unit delivers high energy and volume pressure pulses into the fluid within the pipeline or subsea umbilical, which are transmitted to the blockage face several miles away.
From undersea compression to improved drainage and blockage removal, E&P companies are turning to novel technologies to improve their product returns.
Desde la compresión submarina hasta el drenaje mejorado y la eliminación de obstrucciones, las empresas de E&P (exploración y producción) están recurriendo a las nuevas tecnologías para mejorar el rendimiento de sus productos.
Von der unterseeischen Verdichtung bis zur verbesserten Entwässerung und Beseitigung von Blockierungen, setzen E&P- Unternehmen neue Technologien ein, um ihre Produktionserträge zu verbessern.
Novel technologies vie to improve subsea flows
A 20
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s deepwater fields move towards more complex reservoir conditions and fluids in challenging conditions, Paradigm has
developed a range of engineering solutions which allow significant cost savings to be made. One such solution is Pipe-Pulse, a flow oscillation method for the non-intrusive removal of subsea blockages. It effectively takes the treatment to the topside for the first time and test trials for a number of operators have been very successful. Tis includes clearing a 4-in multi-phase flowline for Shell UK that had been blocked with sand and wax for 11 years and an adjacent 6” flowline with a wax blockage for over 10 months.
Te system is designed to be connected on the topsides of the host platform through either the pig launcher or the umbilical termination unit to remove the blockages. Te Pipe-Pulse unit delivers
high energy and volume pressure pulses into the fluid within the pipeline or subsea umbilical, which are transmitted to the blockage face several miles away (Fig. 1). Operated by three Paradigm engineers per operation, persistent blockages can be completely removed in a matter of days by sending pressure pulses into the flowline, whilst controlling the length and pressure of the pulse. Te system operates using a complex series of control valves which are contained within the main body of the Pipe-Pulse unit. Tese are automatically operated by the touch screen control panel. Paradigm says that a significant
market opportunity for Pipe-Pulse lies in deepwater operations as it delivers dramatic cost savings: “In the case of chronic blockages which have gone unresolved over a number of years, the only solution has often been to replace the umbilical or pipeline which can cost millions of pounds, rendering it economically unviable.”
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