Integrated fault diagnostic techniques on marine large-scaled high-pressure reciprocating gas compressor groups

The reciprocating gas compressor is the core equipment used to gather and transport offshore oil and gas. The BOP-X-2502A/B/C type compressor groups, which are marine large-scaled high-pressure reciprocating gas compressor groups on BZ28–2SBOP offshore platform of CNOOC (China) Ltd., are characterized by the complicated structures, various moving parts, numerous failure samples. Therefore, an integrated fault diagnostic technique is proposed to carry out the condition monitoring and the trend forecasting of compressor groups. The diagnostic technique also can be used to identify and locate the cause of faults, to determine the degree of fault type, to achieve the real-time network monitoring, and to share data resource using network, etc. Then the fault diagnostic software system is developed based on Lab Windows/CVI software. The safety of equipment and overall management level is improved significantly after using the diagnostic method.