Orifice Float Collar - DEW GmbH
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Orifice Float Collar
The Orifice Float
Collar is run when a tie back is required. Normally, it is located one or two
joints above the Tie Back Assembly.
The configuration of the Orifice Float
Collar is similar to a Float Collar or Float Shoe assembly. The only difference
is an orifice in the aluminum component which allows automatic filling-up of
the tie back string while running. Also, it prevents a pressure lock when the
tie back assembly stabs into the tie back Polished Bore Receptacle because the displaced
fluid is able to flow through the orifice.
Features/Benefits:
- Spring loaded poppet type valve is installed in the lower tie back to prevent pressure surge from above and to allow automatic fill-up of the tie back string
- Available in single or double poppet valve
- Light weight
- Easily drillable (PDC)