Reserve Fluid System and Pumping System in Koomey Unit

Reserve Fluid System in Koomey

According to API RP53, each closing unit should have a fluid reservoir tank with a capacity equal to or at least twice the usable fluid capacity of the accumulator system and reservoir fluid is stored at atmospheric pressure

Pumping System in Koomey Unit

Pumps in the Koomey Unit provide power to charge bottles to 3,000 psi. According to API RP53, it states about the pumping system as follows:

Two or three independent sources of power (Air, Electric or Nitrogen)

• For surface accumulators: With the accumulator removed from service, each pump system should be capable of closing the annular BOP on drill pipe, opening HCR and obtaining a minimum pressure of 200 psi over pre-charge pressure within 2 minutes.

Once the BOP rams are activated, pressure in the bottles will drop due to fluid movement. When pressure drops to set pressure, pumps will automatically kick in and pressure up the bottles to 3,000 psi. The set points of each pump are as follows:

• Electrical pump is normally set at 2700 to 3000 psi.

• Pneumatic pump is normally set at 2600 to 2900 psi.

Reference book: Well Control Books

 

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