Pipe laying ship upper tensioning device and pipe line retractable winch tensile force testing method

Abstract

Pipe laying ship upper tensioning device and pipe line retractable winch tensile force testing method, comprising 1, making preparations before testing; 2, a tensile force static test of a first tensioning device; 3, verifying the capability of the static tensile force for a retractable winch; 4, tensile force conversion of the first tensioning device and the retractable winch; 5, dissembling a tension meter and part of a first wire rope used in the static test, to achieve the initial state of a dynamic test; 6, testing the function of a dynamic and automatic retractable pipe line of the first tensioning device; 7, testing an active retractable pipe line of the retractable winch, to keep a constant dynamic function for the tensile force. The invention does not require welding and installations on a pipe laying ship or dissembling an appending reinforcement structure or supply an extra append device or resources, can conduct tensile force testing on tensioning devices and pipe line retractable winches, greatly increases testing efficiency, and brings improvements to the issues of test mode conversion process, dynamic test and tensile force conversion function.

Description

technical field [0001] The invention relates to a pipe-laying ship, in particular to a tension test method for a tensioner on a pipe-laying ship and a winch for retracting and unwinding a pipeline. It belongs to the field of offshore oil engineering. Background technique [0002] The ocean is rich in oil and gas resources. With the continuous increase of global energy demand and the continuous maturity of offshore oil development technology, submarine pipelines have become the main way of transporting offshore oil and gas resources at home and abroad. [0003] At present, the laying of submarine pipelines is completed by pipe-laying engineering ships, and the pipe-laying operation line is generally located at the midship line or the side of the ship. Tensioner and pipeline retracting winch are the core equipment of the submarine pipeline laying system on the pipeline engineering ship. The tensioner is a device that clamps the welded subsea pipeline section and controls its...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to overcome the above-mentioned shortcoming existing in the prior art, and provide a kind of tension test method of the tensioner on the pipe-laying ship and the pipeline retracting winch, it does not need to weld and install and remove the auxiliary reinforcement structure and With the addition of additional auxiliary equipment and resources, the tension test of the tensioner and the pipeline retracting winch can be carried out, which not only solves the problem of complex auxiliary facilities used in tension system testing and occupies a large space; moreover, it can also be carried out at any time according to the needs of the pipe laying project Tension test of tensioner and pipeline retracting winch; greatly improved test efficiency, improved test mode conversion process, dynamic test and tension conversion function problems

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