Multifunctional catwalk

Abstract

The invention relates the technical field of petroleum and natural gas drilling, in particular to a multifunctional catwalk. The multifunctional catwalk comprises a guiding rail assembly, a main lathe assembly, a water insulation pipe front support and a water insulation pipe turnover mechanism. According to the multifunctional catwalk, combination of water insulation pipe transportation and drilling tool transportation are combined into a device is achieved, so that the transferring quantity of drilling tools is improved, automatic operation of turning-in and turning-out of the drilling tools in the catwalk is achieved, the number of devices on a drilling platform is reduced, the weight of the devices on the drilling platform is reduced, and the using frequency of the devices on the drilling platform is improved.

Description

technical field [0001] The invention relates to the technical field of oil and natural gas drilling, in particular to a multifunctional catwalk which can handle not only drilling tools but also water risers. Background technique [0002] Pipe handling is the most work-intensive operation in offshore oil drilling. Riser treatment can be divided into riser treatment and drilling tools (including drill pipe, drill collar, casing, etc.). The transportation of drill collars, casings, etc.) is realized by two kinds of equipment, namely, the riser catwalk and the drill pipe catwalk. The riser catwalk cooperates with the riser crane during the riser operation, and the riser The storage yard is transported to the drilling operation platform, and the riser is transported back to the riser storage yard when the riser is not in operation. Collars, casings, etc.) are transported from the drilling platform deck drill pipe discharge area to the drill floor, and then the drilling tools ar...

AI Technical Summary

Problems solved by technology

Riser treatment can be divided into riser treatment and drilling tools (including drill pipe, drill collar, casing, etc.). The transportation of drill collars, casings, etc.) is realized by two kinds of equipment, namely, the riser catwalk and the drill pipe catwalk. The riser catwalk cooperates with the riser crane during the riser operation, and the riser The storage yard is transported to the drilling operation platform, and the riser is transported back to the riser storage yard when the riser is not in operation. Collars, casings, etc.) are transported from the drilling platform deck drill pipe discharge area to the drill floor, and then the drilling tools are transported to the deck drill pipe discharge area during well completion operations. The frequency of use of the riser catwalk is low, and the riser catwalk is idle for most of the time except when the riser is lowered and recovered, which is a waste of cost, space, and weight of the drilling floor. , the traditional catwalk can only transfer one drilling tool in a single operation, the drilling tool transmission speed is slow, and the work efficiency is low

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