4. E - Fixed Constructions
  5. 21
  6. B

John Edward Ravensbergen

E - Fixed Constructions – 21 – B

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Country: Canada

Bottom hole assembly

E - Fixed Constructions – 21 – B
Patent

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Dual purpose blow out preventer

E - Fixed Constructions – 21 – B
Patent

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Lateral entry guidance system

E - Fixed Constructions – 21 – B
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Multi-zone fracturing completion

E - Fixed Constructions – 21 – B
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Release tool for coiled tubing

E - Fixed Constructions – 21 – B
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Profile ID: LFCA-PAI-P-1359750

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