US 12,345,009 B2
Suction pile cofferdam
Scott P. Dingman, Montgomery, TX (US); and Perry Loughridge, Montgomery, TX (US)
Assigned to Delta SubSea LLC, Montgomery, TX (US)
Filed by Delta SubSea LLC, Montgomery, TX (US)
Filed on Sep. 13, 2022, as Appl. No. 17/943,823.
Application 17/943,823 is a continuation in part of application No. 17/490,719, filed on Sep. 30, 2021.
Application 17/490,719 is a continuation in part of application No. 17/191,128, filed on Mar. 3, 2021, granted, now 11,473,263.
Application 17/191,128 is a continuation of application No. 16/719,476, filed on Dec. 18, 2019, granted, now 10,947,692, issued on Mar. 21, 2021.
Claims priority of provisional application 62/880,231, filed on Jul. 30, 2019.
Prior Publication US 2023/0003000 A1, Jan. 5, 2023
Int. Cl. E02D 29/09 (2006.01)
CPC E02D 29/06 (2013.01) 20 Claims
OG exemplary drawing
 
1. A subsea apparatus, comprising:
a plurality of suctions piles disposed in closed geometric shape to define a portion of a cofferdam enclosing an open region, at least one of the suction piles is a movable suction pile movably connected to at least one adjacent suction pile;
each of the suction piles including a wall defining an interior, an exterior, an open bottom end, and a closed top end,
wherein each suction pile is configured to be driven into a sea floor by a pressure differential induced between the interior and the exterior by a vacuum when a fluid is removed from the interior, and wherein the movable suction pile is configured to be driven into the sea floor independent of the at least one adjacent suction pile.