3 station or 4 station Koomey unit

[rommar]

Can anyone tell me what is the dirrence between 3 station and 4 station Koomey unit API 16D built. Our BOP is 3000 psi rated for shallow oil land well. Which one should I need?

thanks in advance

 

[wyoeng]

Typical BOP stacks may have a double ram plus a annular. The Koomey/accumulator/closing unit needs to have a station for each set of rams plus the annular. Three stations. There are many different BOP configurations therefore the number of units needs to match the number of units to control. A spare can be used for backup.

 

[rommar]

thanks for your info