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IJSTR >> Volume 6 - Issue 11, November 2017 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Comprehensive Analysis To Assess And Remove Causes Of Decline Flow In An Offshore Compression Module.

[Full Text]

 

AUTHOR(S)

Vladimir Alexis Neri Quezadas,

 

KEYWORDS

Gas compression, analysis and troubleshooting, gas processing, gas turbine, thermography, performance test, gearbox, lubrication, compression efficiency.

 

ABSTRACT

In a three stages compression module, at an offshore installation, was detected a sudden decrease in managed flow, decreasing from 108 to 87 million standard cubic feet by day (MMSCFD). Thermodynamic analysis on performance of three stages of compression, axial compressor and power turbine was carried out. Each compression stage were found operating efficiently according to ranges indicated by manufacturer. However, a power loss about 1200 hp was detected in turbine, so that the problem between the power turbine and the main gearbox (MG) was focused. Boroscopic and thermographic inspections were carried out, detecting hot spots and contaminants deposition. Upon disassembling MG, lubrication ducts were detected partially obstructed by silicone.

 

REFERENCES

[1] Royce N. Brown, “Compressors selection an sizing”, Second Edition, Gulf Professional Publishing, 1997.

[2] Petroleos Mexicanos, “Contexto operacional centro de proceso Pol-A”, 2012.

[3] Transamerica Delaval Inc, “Instructions single lift compressor trains”, 1980.

[4] Nuovo Pignone S.p.A., “GE Gas turbines”, 2006.

[5] ASME, “Performance Test Code on Compressors and Exhausters, PTC-10”, 1997 (Reafirmed 2014).

[6] ASME, “Performance Test Code for Gas Turbines, PTC-22”, 2014.

[7] Nicolás José Scenna y col., “Modelado, simulación y optimización de procesos químicos”, ISBN: 950-42-0022-2 ,1999.