Blowout Preventer Landing Assist Tool (BLAT)
The BLAT is used to assist in landing a BOP (Blowout Preventer) onto a subsea wellhead. The BLAT is threaded onto 6 5/8" drill pipe (FH or XT-57 Threads), which can be modified per customer request. The BLAT is then lowered through the Telescopic Joint (TJ) until the BLAT's Anti-Torque Boss makes contact with the Pup Transition Joint (PTJ). The PTJ is bolted between the TJ and riser.
The video shown below is an animation of the BLAT's components and functionality which can be shown to potential customers.
Rotating the drill pipe clockwise (CW) or counterclockwise (CCW) results in the BLAT's load arms extending or retracting. When extended, the load arms make contact with the inner surface of the PTJ, which allows tension to be applied to the drill pipe. Applying more tension to the drill pipe lifts the TJ, PTJ, BLAT, Riser, and BOP. The BLAT has a Safe Working Load of 2,000 kips.
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