Home > Term: grease-injection system
grease-injection system
An assembly of components used to contain wellhead fluids and pressure during braided-line or wireline operations. The wireline passes through a close-tolerance tube assembly as it leaves the wellbore. High-pressure grease is pumped into the surrounding annulus to effect a pressure-tight dynamic seal that is maintained during the operation by injecting more grease as required. A slight leakage of grease is normal, and the addition of fresh grease enables the consistency of the seal to be maintained at an effective level.
- Part of Speech: noun
- Industry/Domain: Oil & gas
- Category: Oilfield
- Company: Schlumberger
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Creator
- BSchmidt
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