Guide frame type wellhead small platform lifting device

Abstract

The invention provides a guide frame-type wellhead small platform lifting device, which includes a fixed platform, a lifting drive mechanism connected under the fixed platform, and a lifting platform connected to the lifting drive mechanism through a sling, wherein: the fixed platform is vertically fixed below the fixed platform. The cuboid fixed guide frame, the lifting platform is vertically connected with the cuboid connection frame; one or several cuboid transition guide frames are set between the fixed guide frame and the connection frame, and the fixed guide frame, the transition guide frame and the connection frame are vertically connected to each other. Directions are sequentially formed for sliding plug-in cooperation, and a movable platform is set in the horizontal extension direction outside the lifting platform; protective railings are set on the outer periphery of the movable platform and the lifting platform; the lifting drive mechanism is a pneumatic or electric truss crane, or an electric coil Around the machine. The invention can precisely adjust the height of the small platform to meet the operation requirements of different heights, is easy to operate, the lifting process is stable and safe, and can be disassembled and used repeatedly.

Description

technical field [0001] The invention relates to the field of marine engineering devices, in particular to a guide frame-type wellhead small platform lifting device for the operation of a marine cantilever beam platform. Background technique [0002] With the continuous deepening of offshore oil and gas exploration and development, the development model has developed from a small-scale oil production platform with a single function to an integrated production and maintenance platform, and the number of wells on the well group platform has continued to increase. At present, the number of wellheads on conventional satellite platforms is between 9 and 12. The number of wellheads of the integrated oil recovery platform is 24 to 36. A large cluster well production platform requires a cantilever drilling platform with a larger operating range. [0003] The continuous increase in the number of production wells and the continuous increase in service time will lead to increasingly fr...

AI Technical Summary

Problems solved by technology

[0003] The continuous increase in the number of production wells and the continuous increase in service time will lead to increasingly frequent operations and workovers. The current operating capacity of offshore platforms can no longer meet market needs

Cantilever beam platform workover operation has always been a difficult point in the operation. At present, there is no convenient method for lifting small wellhead platforms. Therefore, it is urgent to develop a simple, safe and efficient wellhead small platform lifting device.

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