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Monitoring crack tensioner pressure

A tensioner and crawler technology, which is applied in the field of monitoring the extrusion pressure exerted by the crawler tensioner on the submarine pipeline, can solve the problems of increasing complexity, reducing reliability, and difficult installation of strain gauges

Pending Publication Date: 2022-03-18
萨博赛7巴西服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, strain gages can be difficult to fit in elastic pads
All of these factors add complexity and reduce reliability

Method used

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  • Monitoring crack tensioner pressure
  • Monitoring crack tensioner pressure
  • Monitoring crack tensioner pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] Now refer to the attached Figure 4 to Figure 6 , the tensioner includes a track body 32 supporting an array of rollers 30 . The array of rollers 30 in turn supports the track 10 comprising a chain of articulating links 24 each having a back plate 28 supporting a corresponding pad 26 .

[0064] The invention can be used with various tensioner track designs, depending on the diameter of the elongated product being laid and its stiffness, construction and composition, particularly whether the pipe is rigid or flexible. For example, V-shaped pad assemblies are common and may be an alternative to discrete or unique pads on each backplane, where each backplane carries two pads on intersecting planes.

[0065] The array of rollers 30 rotate on parallel and coplanar axes about respective pins, axles or shafts 34 that serve as mandrels. The rollers 30 are tubular, each defining a central cavity coaxially receiving one of the shafts 34 . Figure 6 Alternate ones of the roller...

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PUM

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Abstract

A tensioner system (60) for preventing an elongate product, such as a subsea pipeline, from laying into the water. The system comprises at least one endless endless track (10) and an array of rollers (30) supporting the track. Each roller of the array is mounted for rotation about a respective axis (34). At least one of the shafts comprises a load pin (40) arranged to sense a load applied to the surrounding roller in a direction perpendicular to the axis of rotation of the roller.

Description

technical field [0001] The present invention relates to techniques for monitoring the squeeze pressure exerted by track tensioners on a subsea pipeline during installation of the subsea pipeline from a surface vessel. [0002] The invention will be exemplified in this specification with reference to a subsea pipeline. In principle, however, the invention can also be used for installing other elongated subsea elements, such as risers or umbilicals. Background technique [0003] Various methods are known in the subsea oil and gas industry for installing rigid and flexible pipelines offshore, the most common methods known in the art are S-lay, J-lay and reel-lay. In each case, the pipeline is suspended as a catenary between the installation vessel and the seabed under the tension of its own weight. [0004] The suspended weight of the catenary is supported by a system on board that applies a stopping force to the pipe. Typically, arresting systems include bushings that mecha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/23G01L5/102B63B35/03
CPCF16L1/23B63B35/03B65H51/14B66D3/003B65H51/10B65H2701/33G01L5/10F16L1/205F16L1/207
Inventor L·C·德·莱莫斯·尊尼M·A·塞马拉F·L·鲍尔曼
Owner 萨博赛7巴西服务有限公司