A self-elevating offshore platform pile shoe flushing system to prevent the pile flushing pipeline from being blocked

Abstract

A self-elevating offshore platform spud shoe flushing system for preventing blockage of pile flushing pipelines, comprising a spud shoe, the shell of the spud shoe is composed of an upper top plate, a lower bottom plate and side plates, and a circle of upper punching pile holes is arranged at intervals on the upper top plate, There are two rings of punching pile holes arranged at intervals on the lower bottom plate. Closed pile punching nozzles are arranged on the outside of each upper and lower punching pile holes, and are fixed on the upper top plate and lower bottom plate of the pile shoe by welding. The water inlets of the pile holes are all connected to the outlet pipes of the pump group through the pile flushing pipelines; by rationally arranging the flushing pile holes and the positions of the water outlets, the actual location of the flushing points is deeper and more extensible than the bottom plate of the pile shoe, which can more effectively destroy The soil structure of the pile foundation and the effect of inhibiting the adsorption force, by rationally converting the pile hole into a multi-directional water outlet with a smaller diameter, the effective flushing pressure is higher and the pile flushing efficiency is higher; the closed pile flushing nozzle is adopted, and further By setting step-by-step anti-blocking measures, the problem of seabed sediment blocking the pile flushing pipeline is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of offshore platforms, and in particular relates to a self-elevating pile shoe flushing system for offshore platforms that prevents pile flushing pipelines from being clogged. Background technique [0002] In the exploration and development of offshore oil and gas resources, jack-up platforms are widely used and occupy the main force. The jack-up platform is a mobile offshore platform that can be used for offshore oil drilling, workover, oil testing and production testing. It has the advantages of flexible movement, good stability, and low daily rent. It usually needs to operate in different sea areas. Carry out operations such as inserting piles and pulling piles. [0003] The jack-up offshore platform inserts the spud legs and spud cans into the seabed at a certain depth through ballasting to provide the required bearing capacity of the platform and ensure the safety of the platform operation. When the o...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems that the pile flushing system of the existing self-elevating offshore platform pile shoes often has poor pile flushing effect and difficult pile extraction due to the blockage of the pile flushing pipeline, the purpose of the present invention is to provide a self-elevating type that prevents the pile flushing pipeline from being blocked. Offshore platform spud shoe flushing system has the characteristics of simple structure, easy operation and high efficiency

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