A method for analyzing a pipeline path of a pipe laying ship

Abstract

The invention belongs to the technical field of ship dynamic positioning control, and particularly relates to an analysis method for a pipeline path of a pipe laying ship, which comprises the following steps of determining the position of a pipeline landing point according to the position and the contact distance of the pipe laying ship, and determining a sliding matrix according to the position of the pipeline landing point; judging the pipeline curve path type according to the sliding matrix; calculating an included angle between linear paths according to path type characteristics; calculating the distance from the tangent point to the middle point according to the arc radius and the included angle; calculating the position of the tangent point 1 under the northern east coordinate systemaccording to the circle center and the SF coordinate value of the tangent point 1 relative to the 12 linear path; calculating the position of the tangent point 2 under the northern east coordinate system according to the SF coordinate value of the tangent point 2 relative to the 23 linear path. According to the method, the preprocessing work of the waypoint meter is simplified, and the whole pipeline path does not need to be completely calculated and analyzed in advance, and the whole path can be comprehensively analyzed in sequence only by circularly executing the pipeline path analysis method defined by the sliding matrix.

Description

technical field [0001] The invention belongs to the technical field of ship dynamic positioning control, and in particular relates to an analysis method for a pipeline path of a pipe-laying ship. Background technique [0002] From the 21st century to the present, the ocean has become a crucial field for global oil exploration. Foreign authoritative organizations have predicted that 44% of the world's total storage of oil and gas resources will come from oceans in the future. With the development of the offshore oil industry, offshore oil and gas transportation has become more and more busy, so underwater pipelines play a vital role in long-distance oil and gas transportation. Submarine pipelines are currently laid by special engineering ships - pipe-laying ships, especially deep-water pipelines. About 75% of the world's ocean pipelines are constructed by this method. When the pipe-laying ship is laying the pipeline, it needs to control the positioning of the ship's hull at...

AI Technical Summary

Problems solved by technology

The line of sight guidance algorithm only works on straight paths, not curved paths

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