In addition reciprocating compressors are used for high pressure gas reinjection into downhole reservoirs to enhance crude oil recovery.
Reciprocating compressor lubrication system.
Compressor crankcase lubrication is relatively simple.
Centrifugal compressors not discussed here are typically used on natural gas pipeline systems to move large volumes of gas at lower pressures.
Reciprocating compressors rely upon two lubrication systems that deliver oil to critical components in the drivetrain cylinders and packings.
High flow low compression ratio applications are best served by axial flow compressors.
Reciprocating compressors are typically used where high compression ratios ratio of discharge to suction pressures are required per stage without high flow rates and the process fluid is relatively dry.
The first is a recirculating system which protects bearings bushings thrust plates and crossheads in the drivetrain.
The frame lubrication system circulates oil to the frame bearings connecting rod bearings crosshead shoes and can also supply oil to the packing and cylinder lubrication system.
Type size and speed of compressor.
Reciprocating compressors cylinder packing lubrication system the flow required to lubricate the packing and cylinders is quite small and the pressure necessary to inject the lubricant at these locations is quite high.
Wet gas compressors tend to be centrifugal types.
Reciprocating compressors frame lubrication system.
Therefore small plunger pump force feed lubricators systerns are used.