Docking method of jack-up drilling platform

Abstract

The invention discloses a docking method of a self-elevating drilling platform. The docking method comprises the steps that a plurality of sand boxes are mounted at the bottom of a dock, and string pipe holes used for allowing pile shoes to be inserted are formed in the sand boxes; water is led into the dock, the self-elevating drilling platform is pulled into the dock, and the platform is suspended and positioned above the sand boxes; the water in the dock is pumped out, the pile shoes are inserted in the sand boxes, string pipes on the pile shoes are inserted in the string pipe holes of the sand boxes, and then the platform is fixed to the sand boxes; the platform is lifted along pile legs to overhaul the pile shoes and the pile legs; and dock blocks are arranged in the dock, the platform descends along the pile legs and is located on the dock blocks, and then the pile legs are lifted to enable the pile shoes to be retracted inside the platform. By arranging the sand boxes in the dock, when the self-elevating drilling platform is docked, the pile legs can be inserted in the sand boxes, and the pile shoes of the pile legs can be inserted into the string pipe holes of the sand boxes, so that damage to the pile legs, the pile shoes and the bottom of the dock is avoided; and the platform can move up and down along the pile legs, so that detection and maintenance for the pile legs and the pile shoes are facilitated.

Description

technical field [0001] The invention relates to the field of ships, in particular to a docking method for a self-elevating drilling platform. Background technique [0002] With the deepening of the development and utilization of oil and gas resources, oil and gas exploration and development have shifted from land to sea. When carrying out oil and gas drilling construction at sea, the drilling rig weighing hundreds of tons must have enough support and space, and at the same time, there must be a place for the drilling personnel to live and live. Offshore oil drilling platforms have taken on this important task. The jack-up drilling platform has been introduced into offshore use because of its strong adaptability to water depth and good working stability. [0003] A jack-up drilling platform includes a platform, legs, shoes and a lifting mechanism. The platform is raised and lowered along the pile legs by the lifting mechanism, and the pile shoes are sleeved on the pile legs...

AI Technical Summary

Problems solved by technology

[0004] However, when the jack-up drilling platform is docked, if the pile legs are directly erected on the cement plate at the bottom of the dock, it is easy to cause damage to the pile feet and the bottom of the dock, and when the jack-up drilling platform enters the dock, the platform needs to be Climb to a certain height for inspection and maintenance of spud legs and spud boots

Therefore, for the newly introduced jack-up drilling platform, there is no effective solution for how to dock it and how to maintain it

Images