Well Control Equipment

The ultimate solution for onshore & offshore BOPs.

Annular BOP--Spherical Type

Annular BOP--Spherical Type

The ultimate solution for onshore & offshore BOPs.

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  • Introduction

  • specification

Spherical “Shaffer” Type Annular BOP

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Feature
●  Rubber core store glue big quantity , small friction resistance, when switch pressure sealing ability.
●  Using hemispherical head, no stress concentration phenomenon when under pressure, casing stress evenly, easy to tear open outfit.
●  Piston stroke is short, low height, and set the wear ring.
●  The lip seal, long service life.
●  Low temperature processing annular blowout preventer shell diameter has a trough steam pipe, pipe ventilation with saturated vapor, round shell for heating.( For the customer to choose ).
●  High sulfate-resistant blowout preventer internal all parts contact well liquid surfacing high nickel base alloy, can achieve the highest levels of resistance to effect such as H2S and CO2. For the customer to choose.

Annular BOP element specification& Model

 

Working

pressure

MPa(psi)

Main bore
mm(in)
179.4-7  1/16228.6-9279.4-11346.1-13 5/8425-16 3/4476-18 3/4527-20 3/4539.8-21 1/4749.3-29 1/2762-30
3.5(500)
7(1000)
14(2000)
21(3000)
35(5000)
70(10000)

Note:●Tands for spherical type

 

Spherical type annular bop and packing element specification

 

ModelMain bore
mm(in)
Working pressure
MPa(psi)
Operating Pressure MPaConnection typeDimensionmm mmweight kgRecommended bop code

Top

BottomOutside diameterHeight
FH18-21179(7 1/16)21(3000)8.4~10.5studdedfanged7377431350FH1821NL-00
FH18-3535(5000)7377901572FH1835NL-00
FH18-70/10570(10000)109211365070H09.00
FH23-21228(9)21(3000)9008302104FH2321-00
FH23-3535(5000)99812003540H14.00
FH28-21279(11)21(3000)10138382574FH2821NL-00
FH28-3535(5000)113810814410FH2835-00
FH28-35/7035(5000)113810964451FH2835/70-00
FH28-70/10570(10000)1448142010800FH2870/105-00
FH35-35346(13 5/8)35(5000)127011606400FH3535-00
FH35-35/7035(5000)127012276843FW1305-00A
FH35-70/10570(10000)1640166415110FH3570-00
FH43-35425(16 3/4)35(5000)1524132010834H24.00
FH48-70476(18 3/4)70(10000)1937188227161H26.00


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