Self-elevating multifunctional platform

Abstract

The invention provides a self-elevating multifunctional platform used for well shut-in, well workover and well detaching of offshore production platforms. The self-elevating multifunctional platform comprises a main hull, multiple pile legs, a living area module, a cantilever beam and a heavy crane; a storage area is arranged on a main deck of the main hull; the multiple pile legs penetrates intothe main hull; each pile leg can move up and down relative to the main hull; the living area module is placed on a bow of the main deck; the cantilever beam is placed on a larboard stern of the main hull; the cantilever beam is connected to the main deck of the main hull in a slideable manner; well shut-in and workover equipment is arranged on the cantilever beam; the heavy crane is arranged on astarboard stern of the main hull; and the hoisting range of the heavy crane covers the storage area to hoist a module of the detached offshore production platform in the storage area. The self-elevating multifunctional platform has the advantages that the well shut-in, well workover and platform detaching functions are integrated, the offshore engineering operation period is effectively shortened,the working efficiency is high, and the comprehensive rent is low.

Description

technical field [0001] The invention relates to the field of marine engineering equipment, in particular to a self-elevating multifunctional platform for well repairing, sealing and abandoning wells in offshore oil fields, and dismantling old abandoned platforms. Background technique [0002] Most of the production platforms invested in the early stage have entered the aging stage of being scrapped and dismantled, and there are major safety and environmental protection risks in the process of use. In order to protect the marine environment and maintain the marine ecology, according to the requirements of relevant national laws and regulations, it is necessary to abandon the old oil well platforms that have no mining value or have exceeded their age. According to a survey by HIS (the world's leading information, analysis, and solution consulting company), there will be 600 offshore platform "decommissioning" projects in the next five years. However, at present, the old fixed...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention is to provide a self-elevating multi-functional platform to solve the prior art workover-sealing-abandonment operation and removal platform requires two operation platforms with different functions to complete, resulting in low efficiency , high cost and other issues

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