The Drilling-Technologies MWD Centralizer (Fully Retrievable) Fin

The Drilling-Technologies MWD Centralizer Fin is a fully retrievable and reseat-able design (retrievable / reseat-able through 2.25” – 3.5” I.D. Collars). Being made of a High Density Polyurethane, our Fin offers maximum resistance to down-hole wear and wash making this Fin the ideal choice for a high flow and high solids environment. In addition, High Density Polyurethane maintains its elastic memory, ensuring the highest range of vibration dampening possible.

Specifications

Detail

Measurement

Unit

Temperatures

-40° to 221°

-40° to 105°

°F

°C

Length

12.75

Inch

Inside Diameter (I.D.)

1.175

Inch

Outside Diameter (O.D.)

3.5

Inch

 

Suggested Cutting Requirements

Collar Size

Fin Height

Unit

3 ½” (≈ 2 ¼” I.D.)

Cut to ≈ 0.40” O.D.(± 0.05)

Inch

4 ¾” (≈ 2 7/8” I.D.)

Cut to ≈ 0.70” O.D.(± 0.05)

Inch

6 ½” (≈ 2 15/16” - 3 ¼” I.D.)

Cut to ≈ 0.70” O.D.(± 0.05)

Inch

8” (≈ 3 ½” I.D.)

Do Not Cut

Inch

*** Failure to cut Fin to suggested O.D. will likely result in the Fin being torn from its shaft.

*** Life of the Drilling-Technologies Fin will vary on drilling conditions. We recommend replacing fins when wear becomes visibly noticeable or unacceptable. Fins should be visually inspected periodically; especially when run in invert based mud systems.