20000PSI Ultra-high-pressure BOP Stack
Manufacturing Standards: API 16A, GB/T 20174
Product Applicability: Deep, Ultra-deep wells are mined with high formation pressure, should use ultra-
high pressure BOP stack to ensure well control safety.
Product Features The floating sealing structure is adopted between the intermediate flange and the shell, which
ensures stable sealing performance and reduces the
tightening torque of the side door bolts The ram is replaced by taking out from the side, and reducing the overall
height of the BOP stack, which easier to replace the r
am The shell, intermediate flange, hydraulic cylinder, piston rod, cylinder sleeve, and ram shaft are subject to
corresponding advanced surface treatment to improve the
anti-corrosion of the parts and the reliability of the BOP FHZ28-105/140 Annular BOP is mainly composed of shell,
piston, bonnet and other main parts. The bonnet is
connect ed with the shell by jaw chunk, the packing element is taper type, and the sealing parts are exchangeable
with imported products
20000psi Ultra high pressure 177ºC Highest temperature level PR2
Performance level Application Cases:High pressure oil and gas fields in Xinjiang and Southwest China, Russia
high pressure oil field
Technical Parameters
Nominal diameter 279.4mm (11″)
Rated working pressure Ram BOP 138MPa (20000psi) Annular BOP 103.5MPa (15000psi)
The pressure of hydrostatic proof test Ram BOP 207MPa (30000psi) Annular BOP 155.25MPa (22500psi)
Rated working pressure of hydraulic control system 20.7Mpa(3000psi)
Recommended operating pressure 10.35Mpa(1500psi)
Temperature Ratings for Metallic Materials Ram BOP Highest T-20/350 Annular BOP Highest T-20/250
Temperature Ratings for Nonmetallic Sealing Materials Ram BOP Highest BFF Annular BOP Highest BBD
Sulfur resistance level NACE MR0175
Performance level PR2
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