Platform pile shoe and drilling platform

Abstract

The invention discloses a platform pile shoe and a drilling platform. The platform pile shoe comprises a pile shoe main body, and a plurality of turnover boards hinged with the pile shoe main body; the turnover boards surround the pile shoe main body; the turnover boards rotate outwards under soil body acting force during pile inserting, so that the bearing area of the platform pile shoe is enlarged; the turnover boards rotate inwards under the own gravity and the soil body gravity during pile pulling, so that the bearing area of the platform pile shoe is reduced; and the outer ends of the turnover boards are higher than the lowest point of the pile shoe main body when the pile inserting is completed, and are lower than the lowest point of the pile shoe main body when the pile inserting is not carried out. The platform pile shoe and the drilling platform can provide better bearing area, so that the platform stability is ensured; and the bearing area during the pile pulling is reduced, the pile pulling resistance is reduced, and thus the pile pulling is facilitated.

Description

technical field [0001] The invention relates to the field of offshore oil drilling equipment, in particular to a platform spud can and a drilling platform. Background technique [0002] The jack-up drilling platform is the foundation and important equipment for offshore oil drilling operations. On the pile leg structure (such as the truss structure pile leg) where the pile end resistance is the main bearing capacity of the pile leg, it is widely used to equip the bottom of the pile leg with a large horizontal The spud cans with a larger cross-sectional area can increase the resistance of the pile tip and ensure the ultimate bearing capacity of the pile leg. This kind of drilling platform supports the stability of the platform standing through the friction and positive pressure of the legs and spud cans when it is standing, so as to ensure the normal operation and production work of the platform. [0003] At present, spud cans are generally circular or regular polygons, and ...

AI Technical Summary

Problems solved by technology

[0004] However, the larger the projected area (bearing area) of the vertical change of the spud can, the greater the friction force between the platform and the mud on the seabed when pulling out the piles, so the longer the pulling time, the higher the buoyancy requirements of the platform, and the difficulty of pulling out the legs increases accordingly

Existing drilling platform spud cans are difficult to meet the needs of solving the above contradictions

Images