CN202040481U

CN202040481U - Seabed petroleum pipeline anti-scouring protection structure

Info

Publication number: CN202040481U
Application number: CN2010206994501U
Authority: CN
Inventors: 王守成
Original assignee: ENGINEERING Co OF SHANDONG HAISHENG OCEANEERING GROUP Co Ltd
Current assignee: ENGINEERING Co OF SHANDONG HAISHENG OCEANEERING GROUP Co Ltd
Priority date: 2010-12-31
Filing date: 2010-12-31
Publication date: 2011-11-16
Anticipated expiration: 2020-12-31

Abstract

Provided is a seabed petroleum pipeline anti-scouring protection structure including a pile leg, a pipeline, a supporting pile, and a protective net. The pile leg is piled into the seabed, the supporting pile is arranged nearby the pipeline which is fixed on the pile leg and the supporting pile. The anti-scouring protective net is arranged on the pipeline and includes sandbags surrounding the pipeline and biomimetic waterweeds paved on the sandbags. The structure provided is advantageous in that the structure is high in pertinency to ensure the required positions of the installing base pad of the biomimetic waterweeds and the throwing positions of the sandbags; the structure is simple, requires short time for installation and operation, and takes effects immediately; moreover, the structure provided is free of hard collision with or damage to the seabed pipeline and the structural objects; due to the soft swing of the end parts of the biomimetic waterweeds, a quite dense silt layer is formed during the deposition of the silt in water and then a shoal is formed, thereby preventing the sea environment from pollution and effectively protecting target objects; the offshore construction cost is low, the structure provided only requires an investment once, is free of subsequent maintenance, and has permanent effects; and the structure provided is mainly applied to the anti-scouring protection technology of seabed petroleum pipelines.

Description

Pipeline under the ocean scour protection structure

One, technical field

The utility model relates to submarine transport oil pipeline and structure protective measure, particularly a kind of pipeline under the ocean scour protection structure.

Two, background technique

At present, pipeline under the ocean and structure protective measure, be generally underwater dumped rockfill, the sand hill heap is built, the concrete mattress pad, play the ballistic support stake, also just like reducing water velocity, change the direction of a stream of water, viscous damping device etc. under water, though this class measure has obtained certain effect, but still exist many problems as: 1. because underwater dumped rockfill, the sand hill heap is built, the existence of solid bodies such as concrete mattress pad, easily cause secondary to wash away, 2. reduce water velocity, change the direction of a stream of water, viscous damping device etc. one is that the Underwater Technology problem can't solve under water, the 2nd, and the expense costliness; 3. practical effect is undesirable.

Three, summary of the invention

Order of the present utility model provides a kind of pipeline under the ocean scour protection structure; adopt the co-ordinative construction that sea water resistance soaks, the anti-bionical sea grass of washing away is for a long time installed the base wad and the sandbag of jettisoninging, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.

Pipeline under the ocean scour protection structure described in the utility model comprises spud leg, pipeline, supporting pile, protective net, and spud leg is from servant seabed, sea, and supporting pile is installed on by the pipeline, and pipeline is fixed on spud leg and the supporting pile.On the described pipeline 2 the scour protection net is installed, this scour protection net comprises installs the bionic aquatic weed of laying on sandbag around the pipeline and sandbag.

Wherein, the laying area of described bionic aquatic weed is at least 1.5 times of sandbag surface area.The arrangement height of described sandbag is concordant with the submarine pipeline upper surface.The supporting pile of the laying of described bionic aquatic weed on pipeline extends to the end of pipeline in the seabed always to be ended.

The utility model has following advantage compared with prior art:

1, with strong points, guarantee that bionical sea grass is installed base wad and the sandbag of jettisoninging is in the desired position;

2, simple in structure, the installation exercise time is short, and is rapid-action, almost plays a role at once;

3, hard collision or damage can not appear with submarine pipeline and structure;

4, because the swing of the flexibility of bionical sea grass end forms quite closely knit silt layer, and then forms shoal in the deposition process of silt in water, pollution of marine environment is not protected object effectively;

5, the offshore construction expense is low, only needs once investment, need not follow-up maintenance, has permanent benefit;

6, the Petroleum Production well need not stop production, and is flexible for installation;

7, from watershed management, eliminate and wash away reason, administer thoroughly;

8, effectively prevent to wash away expansion, reinforcing sea bed;

9, applied widely, to administer reliably, anti-environmental change ability is strong;

10, Security, good stability.

Four, description of drawings

Fig. 1 is a kind of embodiment's cross-sectional configuration schematic representation of the present utility model;

Fig. 2 is for pressing A-A shown in Figure 1 to structural representation;

Five, embodiment

Consult Fig. 1-Fig. 2; a kind of pipeline under the ocean scour protection structure; comprise spud leg 1, pipeline 2, supporting pile 3, protective net 4; spud leg 1 is from servant seabed, sea; supporting pile 3 is installed on by the pipeline; pipeline 2 is fixed on spud leg 1 and the supporting pile 3, it is characterized in that on the described pipeline 2 scour protection net 4 being installed, and this scour protection net 4 comprises installs the bionic aquatic weed of laying 6 on sandbag 5 around the pipeline 2 and sandbag 5.

The laying area of bionic aquatic weed 6 is at least 1.5 times of sandbag surface area.The arrangement height of sandbag 5 is concordant with submarine pipeline 2 upper surfaces.The supporting pile 3 of the laying of bionic aquatic weed 6 on pipeline 2 extends to the end of pipeline 2 in the seabed always to be ended.

Claims

1. pipeline under the ocean scour protection structure; comprise spud leg, pipeline, supporting pile, protective net; spud leg is from servant seabed, sea; supporting pile is installed on by the pipeline; pipeline is fixed on spud leg and the supporting pile; it is characterized in that being equipped with on the described pipeline scour protection net, this scour protection net comprises installs the bionic aquatic weed of laying on sandbag around the pipeline and sandbag.

2. pipeline under the ocean scour protection structure according to claim 1, the laying area that it is characterized in that described bionic aquatic weed is at least 1.5 times of sandbag surface area.

3. pipeline under the ocean scour protection structure according to claim 1 and 2 is characterized in that the arrangement height of described sandbag is concordant with the submarine pipeline upper surface.

4. pipeline under the ocean scour protection structure according to claim 1 and 2, the supporting pile of laying on pipeline that it is characterized in that described bionic aquatic weed extend to the end of pipeline in the seabed always and end.