Inside BOP
Brief introduction:
Inside blowout preventer is a quick well head preventer. When well kick or blowout occurs, the inner blowout preventer is connected to the top of drill string in order to control well kick or blowout.
Specifications:
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Technical specifications :
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Inner BOP
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Thread connection
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O.D.(in)
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I.D.(in)
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Length (in)
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2-3/8IF
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3-3/8—3-3/4
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1-1/2
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26
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2-7/8IF
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4-1/8—4-1/4
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1-3/4
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28—30
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3-1/2IF
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4-3/4—5-1/4
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2
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30—31
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4IF
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6-1/4—6-3/4
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2-1/2
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33—34
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4-1/2IF
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6-3/8—7
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2-13/16
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33—34
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5-1/2FH
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7 —7-1/2
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2-13/16
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33—34
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6-5/8REG
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8
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2-13/16
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34
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7-5/8REG
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9-1/2
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2-13/16
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34
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