Home > Term: fill sub
fill sub
A pipe-shaped housing that protects the firing head of a tubing-conveyed perforating gun. It is used to accommodate or deflect debris that might fall toward the firing head while running into the hole or while on depth before shooting.
- Part of Speech: noun
- Industry/Domain: Oil & gas
- Category: Oilfield
- Company: Schlumberger
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Creator
- BSchmidt
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