RELIABIUTY PREDICTION AND MODELING: A Case Study ofDry Gas Seal and Buffer Gas System on Compressor for Gas Transportation
Improvement in compressor reliability in petrochemical, chemical and gas industry services will results in higher production revenue and significant savings in maintenance related cost. Centrifugal compressors play a major role in the successful operation of transporting hydrocarbons from offshor...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
Universiti Teknologi Petronas
2008
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| Online Access: | http://utpedia.utp.edu.my/10245/1/2008%20-%20Reliability%20Pridiction%20and%20Modeling%20A%20Case%20Study%20of%20Dry%20Gas%20Seal%20and%20Buffer%20Gas%20System%20on%20.pdf http://utpedia.utp.edu.my/10245/ |
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| Summary: | Improvement in compressor reliability in petrochemical, chemical and gas industry
services will results in higher production revenue and significant savings in
maintenance related cost. Centrifugal compressors play a major role in the successful
operation of transporting hydrocarbons from offshore by compressed and boosted it
to the onshore refinery facilities. To reach the onshore facilities, the pipeline system
required several other compression stations to help boost the gas to the shore
depending on the distance covered. The compressor is interconnected with the driver
which will drive the compressor. Each compressor is supported with gas seal and
buffer gas seal supplyto deliver the dry gas to the mechanical seal install at the both
end of the shaft. For the seal to function without any failure, the dry gas and buffer
gas system has to have high reliability. The study conducted is to calculate the
reliability of the compressor dry gas seal and buffer gas seal system which is used in
the oil and gas industry and identify weather the system is reliable or not for the
operation. The Pipping and Instrumentation Diagram (P&ID) of dry gas and buffer
gas system of Baram compressor was converted to Reliability Block Diagram(RBD)
which simplified and derived the mathematical model of both systems. Using
Offshore Reliability Data Handbook 2002 (OREDA 2002), data on failure rate and
reliability of each equipment was obtained. Finally, the mathematical model was
simulated using the failure rate value and the overall gas seal system reliability is
obtained.
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