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A method for laying a fusion-free double-layer sea pipe monitoring optical cable

A laying method and sea pipe technology, applied in the direction of optical fiber/cable installation, optics, light guide, etc., can solve problems such as low strength of optical cables, slow down construction progress, and failure of monitoring systems, so as to optimize the laying process and avoid performance degradation. Effect

Active Publication Date: 2021-02-02
E TECH ENERGY TECH DEV CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are mainly two problems at present: 1. Due to the low strength of the optical cable, it is easy to break, which leads to the failure of the monitoring system; 2. The optical cable has been welded many times during the laying process, which slows down the construction progress and increases Fiber core loss, which degrades the performance of the monitoring system

Method used

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  • A method for laying a fusion-free double-layer sea pipe monitoring optical cable
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  • A method for laying a fusion-free double-layer sea pipe monitoring optical cable

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Embodiment Construction

[0025] The present invention will be further described in detail through the accompanying drawings and specific embodiments below.

[0026] As shown in the figure, this embodiment provides a method for laying a fusion-free double-layer sea pipe monitoring optical cable, including the following steps:

[0027] Step (1): laying the horizontal section of the sea pipe.

[0028] The horizontal section of the sea pipe includes an inner pipe 1 for transporting oil and gas, an outer pipe 3 in which the inner pipe 1 is sheathed, and a protection device for protecting optical cables arranged between the inner and outer pipes 1 and 3 . Sleeve 2, the two ends of the protection sleeve 2 are respectively connected with a protection hose 13, the protection hose 13 is located outside the outer tube 3; the outer tube 3, the inner tube 1, the protection sleeve 2 It is respectively spliced ​​by multiple sections of outer short pipes, inner short pipes, and protective short pipes; the annular sp...

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Abstract

The invention discloses a method for laying a welding-free double-layer sea pipe monitoring optical cable, which comprises the following steps: (1) laying a sea pipe in a horizontal section; (2) connecting a hollow plastic ball to a flexible cable end, and The hollow plastic ball is placed in the protective hose at the starting end of the protective sleeve, and gas is blown into the protective hose to drive the hollow plastic ball through the inside of the protective sleeve and pass through the protective hose at the terminal end of the protective sleeve. (3) Connect the optical cable to the end of the flexible cable, and then drag the flexible cable so that the optical cable passes through the protective hose and the protective sleeve . By adopting the above technical scheme, the laying method of the fusion-free double-layer sea pipe monitoring optical cable of the present invention optimizes the laying process of the optical cable in the distributed sea pipe leakage monitoring system, and avoids the performance degradation of the monitoring system caused by the construction process of the optical cable .

Description

technical field [0001] The invention relates to a method for laying a fusion-free double-layer sea pipe monitoring optical cable, which belongs to the technical field of oil field detection. Background technique [0002] In the field of oil transportation, pipeline oil transportation is the most common and most effective way of oil transportation. Once the submarine pipeline leaks, it will cause huge economic losses and social impact. Therefore, the monitoring of submarine pipelines is essential. At present, the most effective monitoring method is to use distributed optical cable temperature sensors, bind the optical cable outside the pipeline, and lay it along the pipeline. However, there are mainly two problems at present: 1. Due to the low strength of the optical cable, it is easy to break, which leads to the failure of the monitoring system; 2. The optical cable has been welded many times during the laying process, which slows down the construction progress and increas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/50
CPCG02B6/506
Inventor 王宁马志卫侯越万钢吴磊
Owner E TECH ENERGY TECH DEV CORP
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