A coupling type bionic spud shoe for self-elevating platform

Abstract

The invention discloses a coupling type bionic spud shoe for a self-elevating platform, which comprises an upper cone, a lower cone and pile legs. Several pile legs are fixed on the upper cone, and the shape of the upper cone is an egg. The lower cone is connected by several ball table-shaped first shells, the bottom of the previous first shell is the top of the next first shell, and the lowermost first shell is connected to the conical second shell . In the coupling type bionic spud shoe for self-elevating platforms of the present invention, during the pile insertion process, the lower cone of the spud shoe with the snail bionic shape is in contact with the seabed, and when the resistance of the spud shoe reaches a certain value, the spud shoe does not stop If it continues to subside, the platform will stand stably on the sea, the spud shoe will suffer less resistance, and the pile insertion efficiency will be high. Compared with the traditional spud-can structure, the platform can reduce the resistance effect of the seabed silt on the spud-can during pile extraction, the pile-extraction speed is faster, the work efficiency is improved, and it has high safety and reliability.

Description

technical field [0001] The invention relates to a self-elevating platform coupling type bionic spud can, and is suitable for jack-up drilling platform equipment for oil and gas exploration and development in continental shelf sea areas. Background technique [0002] In the working environment of the jack-up drilling platform, the seabed is relatively soft. By installing a relatively large pile leg on the pile leg, the jack-up platform can obtain the supporting force required for its work and reduce the impact on the seabed. pressure. The design level of spud shoes is directly related to the performance of inserting and pulling piles and standing stability of the entire platform. Since the environmental load on the jack-up platform increases significantly with the increase of the working water depth, the requirements for the strength of the spud can, the stiffness of the pile-soil connection, the anti-slip capability, and the performance of pile insertion and extraction are ...

AI Technical Summary

Problems solved by technology

In order to achieve the purpose of increasing the contact area between the pile legs and the seabed ground and improving the stability of the platform, the existing spud can structures include circular, rectangular, polygonal and conical shapes, but they cannot effectively solve the problem of the platform being stuck in the process of piling. The problem of increasing the pulling time and increasing the difficulty of pulling out the piles caused by the greater resistance of the pile boots into the soil and the increase in the area of ​​the pile boots

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