4. Valves and valve actuation
  5. Blow-out preventers
  6. Radial reciprocating ram

David L. O'Donnell

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Blowout preventer with ram wedge locks

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Hydraulically controlled blowout preventer

Valves and valve actuation – Blow-out preventers – Radial reciprocating ram
Patent

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Oilfield tubular shear ram and method for blowout prevention

Wells – Processes – Perforating – weakening – bending or separating pipe at an...
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Profile ID: LFUS-PAI-P-268327

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