2008•Oil Field EquipmentRequires access

JC70DB Drawworks Used on Offshore

DI Li-li

Abstract

Aiming at the trends of offshore petroleum machinery and demands for the drawworks to be used on offshore,JC70DB offshore drawworks(frequency-conversion) to be used on offshore drilling rig is developed.Its main design code,technical parameters,operation principle,structural features and main parts are introduced in this paper.Its transmission is divided into two systems: major driving and auto-driving.Single drum-shaft mode is adapted to give first stage driving with gears to increase transmission effective.Electricity control and hydraulic control systems are used with flexible operation and high automation and intelligence.Its compact in size,light in weight is good for transport.JC70DB offshore drawworks will find its wide application in offshore drilling rig.

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Key concepts: Submarine pipeline, Engineering, Offshore drilling, Marine engineering, Offshore construction, Petroleum engineering, Automation, Transmission (telecommunications)