초록 ▼

An example of a caisson system that surrounds a conductor that extends from a head member positioned above a water surface to below a mud line includes a caisson positioned about the conductor, the caisson having a lowest end; a lower centralizer connected within the caisson proximate the lowest end

An example of a caisson system that surrounds a conductor that extends from a head member positioned above a water surface to below a mud line includes a caisson positioned about the conductor, the caisson having a lowest end; a lower centralizer connected within the caisson proximate the lowest end of the caisson; and a second centralizer connected within the caisson above the lower centralizer relative to the mud line; wherein each centralizer includes a plurality of bow members extending between a first and a second collar, the first collar immovably connected within the caisson and the second collar moveable relative to the first collar, and each bow member curving inward from the caisson defining a bore disposing the conductor.

대표청구항 ▼

What is claimed is: 1. A caisson comprising an internal centralizer connected to the caisson, the centralizer comprising a catenoid shaped member defining a bore having an expandable diameter to dispose a conductor that extends from below a mud line to above a water surface and to position the caiss

What is claimed is: 1. A caisson comprising an internal centralizer connected to the caisson, the centralizer comprising a catenoid shaped member defining a bore having an expandable diameter to dispose a conductor that extends from below a mud line to above a water surface and to position the caisson about the conductor.