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Complex bending test device of deepwater top tensioned riser

A bending test and top-tensioning technology, which is applied in the direction of applying stable tension/compression to test the strength of materials, and can solve problems such as complex calculations

Inactive Publication Date: 2017-12-15
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the shortcomings of the prior art, the present invention provides a complex bending test device for deep-water top-tensioned risers, thereby solving the calculation problem of complex bending of deep-water top-tensioned risers

Method used

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  • Complex bending test device of deepwater top tensioned riser
  • Complex bending test device of deepwater top tensioned riser
  • Complex bending test device of deepwater top tensioned riser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Complex bending test setup for deep water top tensioned risers such as figure 1 As shown, it includes a fixed frame 16, a model pipeline 1 located on the fixed frame 16, and a water supply pipeline system. The upper and lower sides of the model pipeline 1 are connected to the water supply pipeline system; the upper end of the model pipeline 1 is provided with a first piston 30, The lower end of the model pipeline 1 is provided with a second piston 31, and the fixed frame 16 is connected with a first buckle 10 and a second buckle 12. The tail of the first piston 30 is installed on the first buckle 10, and the tail of the second piston 31 is installed on the second buckle. Buckle 12; Fixed mount 16 lower side is provided with slideway 9, reaction force frame 14, and slideway 9 cooperates and is connected with chute 5, and chute 5 is provided with second support 3, and second support 3 is connected with second card. Disk 2, the lower side of the model pipeline 1 is connect...

Embodiment 2

[0059] Complex bending test setup for deep water top tensioned risers such as figure 1 As shown, it includes a fixed frame 16, a model pipeline 1 located on the fixed frame 16, and a water supply pipeline system. The upper and lower sides of the model pipeline 1 are connected to the water supply pipeline system; the upper end of the model pipeline 1 is provided with a first piston 30, The lower end of the model pipeline 1 is provided with a second piston 31, and the fixed frame 16 is connected with a first buckle 10 and a second buckle 12. The tail of the first piston 30 is installed on the first buckle 10, and the tail of the second piston 31 is installed on the second buckle. Buckle 12; Fixed mount 16 lower side is provided with slideway 9, reaction force frame 14, and slideway 9 cooperates and is connected with chute 5, and chute 5 is provided with second support 3, and second support 3 is connected with second card. Disk 2, the lower side of the model pipeline 1 is connect...

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Abstract

The invention relates to research experimental apparatuses of marine deepwater risers, and discloses a complex bending test device of a deepwater top tensioned riser. The device includes a model pipeline (1) arranged on a fixed frame, the upper end side face and the lower end side face of the model pipeline (1) are connected to a water supply pipeline system. The upper end of the model pipeline (1) is fixed by a chuck and is connected to the fixed frame through a bracket. The lower part of the fixed frame (16) is provided with a reaction frame (14), the reaction frame (14) is connected to a second chuck (2) through a spring. The upper end and lower end of the model pipeline (1) are equipped with pistons, and the tails of the pistons are equipped with buckles controlling the pistons. A strain gauge is pasted to the model pipeline to measure the wall tension and vibration response of the model pipeline. A pressure gauge is arranged at the upper end of the model pipeline to measure the pressure in the model pipeline. The test device provided by the invention can complex bending test research of deepwater top tensioned risers, and provides the basis and experimental verification for complex bending calculation of risers.

Description

technical field [0001] The invention relates to a research and test device for marine deep-water risers, in particular to a complex bending test device for deep-water top-tensioned risers. Background technique [0002] The deep water top tension riser is a kind of marine riser suitable for deep water environment. The function of the riser is to connect the subsea wellhead and the offshore oil platform. Through the marine riser, the resources such as oil and gas on the seabed can be continuously transported to the oil platform. The complex bending of the deep water top-tensioned riser refers to the bending deformation of the riser under the external load when it is subjected to axial tension. The calculation theory is based on the complex bending theory of the beam, and the geometric stiffness of the bending deformation depends on the pipeline itself The bending stiffness and the change of bending stiffness after being affected by tension. The complex bending theory of beams...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
CPCG01N3/08
Inventor 周阳杨忠良叶钦张俊彪施伟勇谢鸣
Owner ZHEJIANG OCEAN UNIV