Bundled Subsea Pipeline

A technology for submarine pipelines and pipelines, applied in the field of clustered submarine pipelines, can solve problems such as pipeline bending deformation, displacement, soil deformation, etc., and achieve the effects of reducing pipeline displacement, changing stress distribution, and reducing impact

Active Publication Date: 2022-03-22
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But even so, the grooves produced by the extrusion of icebergs will cause serious deformation of the soil, which in turn will drive large bending deformation and displacement of the pipeline in the horizontal direction

Method used

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Embodiment Construction

[0029] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art Modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims of the present application.

[0030] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar exp...

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Abstract

The invention discloses a bundled submarine pipeline. The bundled submarine pipeline comprises: a bearing pipe, a functional pipeline located in the bearing pipe, a spacing mechanism arranged between the functional pipeline and the bearing pipe, and a bearing pipe located in the bearing pipe. The protection device and the limiting mechanism outside the tube; the spacing mechanism can slide within a predetermined range relative to the tube wall of the bearing tube; the limiting mechanism is arranged on the outer wall of the bearing tube, including: an axial limiting member and a circumferential limiter, the protective device includes: a protective sleeve sleeved outside the bearing tube, and the protective sleeve is provided with a snap-fitting part that matches the circumferential limiter, so The axial limiting member is used to limit the axial movement of the protective sleeve relative to the bearing tube. The invention can reduce the impact of iceberg extrusion on submarine pipelines.

Description

technical field [0001] The invention relates to the technical field of marine engineering equipment, in particular to a bundled submarine pipeline. Background technique [0002] Polar regions are rich in oil and gas resources. However, due to the harsh environmental conditions in the polar region, the design and installation of offshore oil and gas pipelines need to consider a variety of factors. Among them, iceberg extrusion will cause unpredictable damage to the pipeline, which is one of the factors that must be considered. The so-called iceberg extrusion means that when an iceberg in the Arctic moves to shallow water or near the coastline, the keel of the iceberg below sea level will touch the seabed, and under the action of wind and ocean currents, the iceberg will move, thereby A trench has been dug into the sea floor. [0003] It is generally believed in the industry that in order to prevent the impact of iceberg extrusion, pipelines can be buried at a certain depth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/12F16L1/16F16L7/00F16L9/19F16L59/12F16L59/135
CPCF16L1/123F16L1/16F16L7/00F16L9/19F16L59/12F16L59/123F16L59/135
Inventor 王懿王庆松李燕彬樊耀民梁子同岳琦王艳张希阳肖良韩红丽
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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