Patent ID: 9677241
Date: 2017-06-13
CPC Classifications: E02D,F16J

Claim:
1. A passive grout seal assembly, installed on a pile sleeve inner surface near a sleeve bottom to allow a pile inserting from above, for sealing an annulus between a pile outer surface and a sleeve inner surface during an offshore jacket installation, the grout seal assembly comprising: a plurality of evenly spaced hanging strips fixed at the sleeve inner wall with holes between the hanging strips to allow fluid passing through, wherein a top end of each hanging strip having anchoring means for fixation to the sleeve inner wall surface and bottom portion of each hanging strip being extended downward, placed in front of an annular resilient tube below; and an upper section of the annular resilient tube bonded together with the bottom portion of the plurality of the hanging strips, wherein the annular resilient tube comprises a cone section on top of a tubular section, the vertical orientation of the annular resilient tube is kept after a pile inserting, and bottom of the annular resilient tube bottom section has fixed connections to the sleeve inner wall surface to form a sealed annulus between the sleeve inner surface and the tube outer surface.