Hydraulic bearing-type riser universal joint device

Abstract

The invention discloses a hydraulic bearing-type riser universal joint device which comprises a universal joint body. A wing plate at the middle part of the body is provided with a plurality of hydraulic cylinders on the periphery in a uniform and fixing manner; the axis of a piston of each hydraulic cylinder is fixedly provided with a guide seat; each guide seat is connected with a guide shaft; the upper ends of all the guide shafts are fixedly connected with a hydraulic cylinder connection plate; the hydraulic cylinder connection plate is fixedly connected with a chuck connection plate through bolts; oil inlets of all the hydraulic cylinders are communicated with an accumulator. The device disclosed by the invention has a simple structure, is convenient and rapid to operate, has reliable service life, is easy to produce and manufacture, convenient to install and disassemble, applied to the condition that an offshore drilling riser or a production riser is horizontally deflected under the action of waves and streams, and is platform deck equipment capable of realizing a deflection balancing function.

Description

technical field [0001] The invention belongs to the technical field of offshore oil drilling and production equipment, and relates to a hydraulic load-bearing type riser universal joint device. Background technique [0002] As an important component of the riser system, the riser universal joint is installed directly above the drilling turntable and used together with the chuck. Its main function is to compensate the offset of the riser system due to the influence of waves and currents through the pressure-bearing structure of the hydraulic cylinder of the universal joint when operating in deep water, to ensure the vertical connection between the riser and the drilling platform, and to ensure that the riser system In the case of horizontal deflection, it also balances the offset and acts as a load buffer in the event of shock loads. [0003] Existing universal joints mainly include two structures of hydraulic cylinder pressure-bearing type and flexible element pressure-bear...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hydraulic load-bearing type riser universal joint device, which solves the difficulties in production and processing in the prior art, and the cost is high; or the performance requirements for the piston material and service life of the hydraulic cylinder are relatively high The problem

Images