Products & Services
Blow Out Preventers (BOP)
GK Annular BOP
Applications & Benefits
The GK annular blowout preventers field-tested and proven design has provided world class dependability and quality in surface applications.
The GK provides quick, positive closing action with simplified controls to keep drilling fluids in the hole if a blowout threatens. The packing unit permits closure on the drill pipe, Kelly, tool joints or tubing and wireline as well as the open hole.
The GE Oil & Gas GK Advantage
The packing unit for the GK annular BOP can hold full-rated working pressure and will close on an open hole. Before shipment, each packing unit is factory tested in a BOP – to 50% of working pressure on open hole and 1000% on pipe. The GK provides longer life when using genuine Hydril Pressure Control packing Units, as shown in repeat testing.
When the GK closes, the piston moves up, driving the elastomer and inserts inward where they quickly reach a fixed position and form a steel ring that prevents the rubber from moving upward under wellbore pressure. After the ring is formed, feed-able elastomer continues to flow inward round the inserts to create a positive seal on the drill string or open hole. Because the elastomer is primarily in compression, it resists tears, cuts and abrasions.
The GK makes maintenance easy and lengthens the time between packing unit charges and shop repairs. The key to these benefits is a simple design that includes;
RAM Blocks BOP
Single RAM Type BOP
Single Ram Surface (as opposed to subsea) BOPs can seal the annulus around drill pipe, casing or tubing; or shear the drill string. We have a complete range from 4.1/16″ to 13.5/8″ ID and they are pressure rated up to 5,000PSI.
Double RAM Type BOP
Double Ram Surface (as opposed to subsea) BOPs can seal the annulus around drill pipe, casing or tubing; or shear the drill string. We have a complete range from 11″ to 16.3/4″ ID and they are pressure rated up to 5,000PSI.
Download Technical Data Sheet