Grouting well platform legs.

摘要

The annular spaced formed between a jacket leg (31) or a pile sleeve (32) and a pile (20) driven therethrough, or similar annular space of an offshore platform, has a particulate material and aqueous solutions of an alkali silicate material injected therein above a pile seal assembly (40). After flocculation of the silicate, the annular space is filled with grouting material.