CN101963257A - Method for fixing seabed pipeline and preventing buckle propagation - Google Patents
Method for fixing seabed pipeline and preventing buckle propagation Download PDFInfo
- Publication number
- CN101963257A CN101963257A CN 201010297390 CN201010297390A CN101963257A CN 101963257 A CN101963257 A CN 101963257A CN 201010297390 CN201010297390 CN 201010297390 CN 201010297390 A CN201010297390 A CN 201010297390A CN 101963257 A CN101963257 A CN 101963257A
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- pipeline
- submarine pipeline
- shaped structure
- barrel shaped
- bottom base
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002689 soil Substances 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009931 pascalization Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention belongs to the technical field of seabed pipeline laying and particularly relates to a method for fixing a seabed pipeline and preventing buckle propagation. The method comprises: manufacturing a plurality of pairs of reversed U-shaped shells of which the inside diameters are the same and the outer edges are tangent according to the outside diameter and wall thickness specification of the seabed pipeline, wherein the upper parts of the shells are in semi-annular shapes and the lower parts of the shells have semi-cylindrical hollow cuboid bases; connecting the surfaces of the bases with barrel structures to form buckle preventing fixers; and mounting the fixers on the seabed pipeline at intervals along a radial direction. The method adopts a reasonable mounting process, and can simplify operation, reduce cost, effectively fix the seabed pipeline and prevent buckle propagation, and ensure the safe and stable operation of the seabed pipeline.
Description
Technical field
The invention belongs to submarine pipeline facility laying technology field, be specifically related to a kind of fixedly submarine pipeline and the method that prevents buckle propagation.
Background technique
Submarine pipeline is the lifeblood engineering of modern marine oil and gas development transportation, is known as " marine lifeline ".Along with the exploitation in deep-sea oil gas field, most of pipeline will be in the operation of the marine site of the 2000-3000 rice depth of water.Pipelines in deep sea is the naked seabed that places usually, submarine pipeline not only bears deadweight, outside hydrostatic pressure, internal pressure, medium temperature, prestressing force, piping attachment active force, cover and sea bed active force, pigging is operated the functional load such as active force that cause, and be subjected to environmental load effects such as wind, wave, stream and earthquake, also to face the challenge of accidental load such as extreme sea condition, ship collision, junk, liquefaction of sand, operating trouble.
Losing efficacy very likely appears under the effect of external load in the pipeline that is layed in deepwater regions, as the unstability of pipeline suspended span section lost efficacy, deepwater regions high hydrostatic pressure and pipe interior axial force cause flexing, fatigue failure etc.In a single day accidents such as breakage, leakage, fracture take place in submarine pipeline, will national economy be brought about great losses, and ocean environment is caused severe contamination.For this reason, carry out submarine pipeline technique for fixing and the research that prevents the buckle propagation method, the stable and durability for guaranteeing submarine pipeline ensures marine environmental protection and the people's lives and property safety etc., has important practical significance and profound influence.
Yet traditional anti-bend method is carried out encased steel or is expanded strengthened section, local deformation that can only control section, and powerless for complete buckling.Even the submarine pipeline that buckle arrestor is installed under the complex load effect, still exists the big vertical protuberance or the danger of lateral displacement, also do not integrate the device that prevents cripling propagation and complete buckling at present and occur.
Summary of the invention
The objective of the invention is to overcome the deficiency on the prior art, a kind of effectively fixedly submarine pipeline and the method that prevents buckle propagation are provided, take rational mounting process, simplify the operation, reduce cost, effectively fixing submarine pipeline and prevent buckle propagation, the safety and the stable operation of assurance submarine pipeline.
For this reason, the present invention adopts following technological scheme: a kind of fixedly submarine pipeline and the method that prevents buckle propagation comprise the following steps:
Size according to submarine pipeline external diameter and wall thickness, make many, inverted U-shaped housings that outer rim tangent identical to internal diameter, the top of housing is semi-round ring shape, and the bottom is to have half-cylindrical hollow cuboid pedestal, base bottom surface connects barrel shaped structure, constitutes an anti-bend fixture;
Directly upwards according to following method an anti-bend fixture is installed at submarine pipeline: at first at pipeline external surface bag one deck rubber every a segment distance, upper shell is close on the pipe surface rubber, according to the mode that the eye plate position coincide it is docked with bottom base, pass eye plate by the bolt and nut pair then two housings are fixed on the pipeline.When pipelaying work, take negative pressure sinking mode to insert in the ocean bottom soil barrel shaped structure.Adjust pipeline location and make bottom base be in the barrel shaped structure top, handle underwater robot bolt is passed the barrel shaped structure top board, insert in the screw of bottom base, make the butt joint of barrel shaped structure and bottom base, pipeline is fixed in the seabed.
As preferred implementation, the length of each inverted U-shaped housing is got 3-4 doubly to described submarine pipeline external diameter, thickness of shell is got 2-5 doubly to the wall thickness of described submarine pipeline, the interior external diameter and the staving wall thickness dimension of barrel shaped structure are identical with described submarine pipeline, and the barrel shaped structure top plate thickness is got 2-5 doubly to the wall thickness of described submarine pipeline.Directly make progress every 100-150 rice apart from an anti-bend fixture is installed at submarine pipeline.
The invention provides a kind of fixedly submarine pipeline and the method that prevents buckle propagation, have the following advantages for existing technology: (1) the present invention is submarine pipeline effectively fixedly, makes it that excessive vertical or lateral displacement can not take place, and guarantees the stability of pipeline.(2) when guaranteeing that Side movement is less, can also prevent the propagation of cripling, avoid submarine pipeline to cause the structural damage of long distance by cripling, guarantee the integrity of submarine pipeline.(3) the anti-bend fixture can be realized the mold batch process, has reduced manufacture cost.(4) marine mounting process is simple, and is easy to operate, reduced construction cost.
Description of drawings
Fig. 1 is the front view that is equipped with certain section submarine pipeline of anti-bend fixture;
Fig. 2 is the A-A sectional drawing among Fig. 1;
Fig. 3 is the B-B sectional drawing among Fig. 2;
Fig. 4 is the C-C sectional drawing among Fig. 1.
The number in the figure explanation:
1 submarine pipeline; 2 upper shells; 3 bottom bases; 4 barrel shaped structure; 5 bolt and nut pairs; 6 bolts; 7 barrel shaped structure top boards; 8 rubber layers; 9 overhanging eye plates; 10 screws
Embodiment
The present invention is by installing the method for anti-bend fixture at a certain distance on submarine pipeline, in order to fixing submarine pipeline with prevent buckle propagation.Key step is as follows:
According to the external diameter that will protect submarine pipeline and wall thickness dimension, make the inverted U-shaped housing that internal diameter is identical, outer rim is tangent, can produce in batches upper shell and bottom base respectively by two moulds.
At first, upper shell is close on the pipe surface rubber layer, it is docked with bottom base, pass eye plate by the bolt and nut pair of 4 assembly cover then two housings are fixed on the pipeline according to the mode that the eye plate position coincide at pipeline external surface bag one deck rubber.
When pipelaying work, take negative pressure sinking mode to insert in the ocean bottom soil barrel shaped structure.Adjusting pipeline location makes bottom base be in the barrel shaped structure top, handle underwater robot 4 bolts are passed the barrel shaped structure top board respectively, insert in the corresponding screw of bottom base, make the butt joint of barrel shaped structure and bottom base, constitute the anti-bend fixture of submarine pipeline, pipeline is fixed in the seabed.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
Be equipped with the front view of certain section submarine pipeline of anti-bend fixture, as shown in Figure 1.Submarine pipeline anti-bend fixture involved in the present invention is to be fastened on the pipeline by bolt by upper shell 2 and bottom base 3 and barrel shaped structure 4.Upper shell 2 is a semi-round ring shape, has overhanging eye plate 9 above, and bolt and nut pair 5 is passed eye plate 9 and connected upper shell 2 and bottom base 3.Bottom base is to have half-cylindrical hollow cuboid, and its bottom surface is drilled with screw 10, and bolt 6 is passed barrel shaped structure top board 7, inserts screw 10, and bottom base 3 and barrel shaped structure 4 are assembled together.Barrel shaped structure 4 back-offs are gone in the soil, play the suction pile effect, and pipeline 1 firmly is fixed on the seabed.
Fig. 2 is the A-A sectional drawing among Fig. 1, i.e. the cross section of anti-bend fixture has shown the side direction Placement of upper shell 2, bottom base 3 and barrel shaped structure 4; Fig. 3 is the B-B sectional drawing among Fig. 2, i.e. the longitudinal section of anti-bend fixture has shown vertical Placement of bottom base 3 and barrel shaped structure 4; Fig. 4 is the C-C sectional drawing among Fig. 1, i.e. the worm's eye view of anti-bend fixture has shown the position of the bolt 6 that bottom base 3 is connected with barrel shaped structure top board 7.
Fit on housing 2 and bottom base 3 before pipe laying.Detailed process is earlier at pipeline external surface bag one deck rubber 8, and upper shell 2 is close on the rubber layer 8, docks with bottom base 3 by the position of overhanging eye plate 9, by four groups of bolt and nut pairs 5 upper shell 2 and bottom base 3 is fixed on the pipeline 1 then.
Assembling bottom base 3 and barrel shaped structure 4 in the pipe laying process.Detailed process is on the laying route of pipeline 1 barrel shaped structure 4 to be inserted soil.Adjusting pipeline 1 position makes bottom base 3 be in barrel shaped structure 4 tops, handle underwater robot four bolts 6 are passed barrel shaped structure top board 7 respectively, insert in the corresponding screw 10 of bottom base 3, make barrel shaped structure 4 and bottom base 3 butt joints, constitute the anti-bend fixture of submarine pipeline, as shown in Figure 1.
The 3-4 of desirable pipeline 1 external diameter of the length of upper shell 2 and bottom base 3 times, thickness is got the wall thickness of 2-5 times of pipeline 1.The interior external diameter and the staving wall thickness dimension of barrel shaped structure 4 are identical with pipeline 1, and the thickness of barrel shaped structure top board 7 is got the wall thickness of 2-5 times of pipeline 1.The desirable 100-150 rice of the installation interval of anti-bend fixture.
Claims (3)
1. a fixing submarine pipeline and prevent the method for buckle propagation comprises the following steps:
(1) according to the size of submarine pipeline external diameter and wall thickness, make many, inverted U-shaped housings that outer rim tangent identical to internal diameter, the top of housing is semi-round ring shape, and the bottom is to have half-cylindrical hollow cuboid pedestal, base bottom surface connects barrel shaped structure, constitutes an anti-bend fixture.
(2) directly upwards according to following method an anti-bend fixture is installed at submarine pipeline: at pipeline external surface bag one deck rubber every a segment distance, upper shell is close on the pipe surface rubber layer, according to the mode that the eye plate position coincide it is docked with bottom base, pass eye plate by the bolt and nut pair then two housings are fixed on the pipeline.When pipelaying work, take negative pressure sinking mode to insert in the ocean bottom soil barrel shaped structure.Adjust pipeline location and make bottom base be in the barrel shaped structure top, bolt is passed the barrel shaped structure top board, insert in the screw of bottom base, make the butt joint of barrel shaped structure and bottom base, pipeline is fixed in the seabed.
2. a kind of fixedly submarine pipeline according to claim 1 and the method that prevents buckle propagation, it is characterized in that: the length of each inverted U-shaped housing is got 3-4 doubly to described submarine pipeline external diameter, thickness of shell is got 2-5 doubly to the wall thickness of described submarine pipeline, the interior external diameter and the staving wall thickness dimension of barrel shaped structure are identical with described submarine pipeline, and the barrel shaped structure top plate thickness is got 2-5 doubly to the wall thickness of described submarine pipeline.
3. a kind of fixedly submarine pipeline according to claim 1 and 2 and the method that prevents buckle propagation is characterized in that, directly make progress every 100-150 rice apart from an anti-bend fixture is installed at submarine pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010297390 CN101963257B (en) | 2010-09-30 | 2010-09-30 | Method for fixing seabed pipeline and preventing buckle propagation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010297390 CN101963257B (en) | 2010-09-30 | 2010-09-30 | Method for fixing seabed pipeline and preventing buckle propagation |
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| Publication Number | Publication Date |
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| CN101963257A true CN101963257A (en) | 2011-02-02 |
| CN101963257B CN101963257B (en) | 2013-01-23 |
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| CN 201010297390 Expired - Fee Related CN101963257B (en) | 2010-09-30 | 2010-09-30 | Method for fixing seabed pipeline and preventing buckle propagation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226380A (en) * | 2011-06-20 | 2011-10-26 | 天津大学 | Method for inhibiting vortex-induced vibration of marine riser |
| CN102278530A (en) * | 2011-08-02 | 2011-12-14 | 天津大学 | Submarine pipeline buckle arrestor with guide plates |
| CN102359661A (en) * | 2011-08-22 | 2012-02-22 | 天津大学 | Method for manufacturing and fixing submarine pipeline buckle arrestor on basis of morphological energy adsorption |
| CN102954285A (en) * | 2012-11-14 | 2013-03-06 | 江苏中宜环科水体修复有限公司 | Multifunctional underwater fixing support |
| CN104033652A (en) * | 2014-06-05 | 2014-09-10 | 中国海洋石油总公司 | Buckle arrestor applicable to deepwater submarine pipeline |
| CN104455728A (en) * | 2014-11-25 | 2015-03-25 | 天津大学 | Method for controlling lateral displacement of submarine pipeline |
| CN105003739A (en) * | 2015-07-24 | 2015-10-28 | 天津大学 | Anchoring disk for controlling lateral movement of nakedly-laid submarine pipeline |
| CN105333227A (en) * | 2015-11-11 | 2016-02-17 | 哈尔滨工程大学 | Structure support device for treating suspended span of submarine pipeline |
| CN107084281A (en) * | 2017-06-22 | 2017-08-22 | 中国海洋大学 | A kind of seabed flexible pipe laying fixing device |
| CN113167410A (en) * | 2018-10-12 | 2021-07-23 | 弗利里吉尼有限公司 | Clamping device |
Citations (7)
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|---|---|---|---|---|
| US3791156A (en) * | 1970-09-14 | 1974-02-12 | Ihc Holland Nv | Method and apparatus for determining the position of a pipeline or the like during the entrenching thereof |
| EP0774609A1 (en) * | 1995-11-16 | 1997-05-21 | Koninklijke Schelde Groep B.V. | Shock-resistant pipework system |
| CN1419068A (en) * | 2002-12-10 | 2003-05-21 | 胜利油田胜利石油化工建设有限责任公司 | Construction method and device for fixing seabed pipeline |
| WO2005045295A1 (en) * | 2003-11-07 | 2005-05-19 | Massoud Baghernejad | Method and apparatus for laying a pipeline |
| CN2769654Y (en) * | 2005-02-02 | 2006-04-05 | 四川科宏石油天然气工程有限公司川中分公司 | Piepline stabilizer for pipeline acrossed by river |
| CN101200899A (en) * | 2007-12-21 | 2008-06-18 | 天津大学 | Self-mounting type bucket base with oil storage chamber |
| CN101696751A (en) * | 2009-11-13 | 2010-04-21 | 天津大学 | Method for preventing buckle propagation and inhibiting vortex-induced vibration of benthal pipeline |
-
2010
- 2010-09-30 CN CN 201010297390 patent/CN101963257B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3791156A (en) * | 1970-09-14 | 1974-02-12 | Ihc Holland Nv | Method and apparatus for determining the position of a pipeline or the like during the entrenching thereof |
| EP0774609A1 (en) * | 1995-11-16 | 1997-05-21 | Koninklijke Schelde Groep B.V. | Shock-resistant pipework system |
| CN1419068A (en) * | 2002-12-10 | 2003-05-21 | 胜利油田胜利石油化工建设有限责任公司 | Construction method and device for fixing seabed pipeline |
| WO2005045295A1 (en) * | 2003-11-07 | 2005-05-19 | Massoud Baghernejad | Method and apparatus for laying a pipeline |
| CN2769654Y (en) * | 2005-02-02 | 2006-04-05 | 四川科宏石油天然气工程有限公司川中分公司 | Piepline stabilizer for pipeline acrossed by river |
| CN101200899A (en) * | 2007-12-21 | 2008-06-18 | 天津大学 | Self-mounting type bucket base with oil storage chamber |
| CN101696751A (en) * | 2009-11-13 | 2010-04-21 | 天津大学 | Method for preventing buckle propagation and inhibiting vortex-induced vibration of benthal pipeline |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226380B (en) * | 2011-06-20 | 2013-08-28 | 天津大学 | Method for inhibiting vortex-induced vibration of marine riser |
| CN102226380A (en) * | 2011-06-20 | 2011-10-26 | 天津大学 | Method for inhibiting vortex-induced vibration of marine riser |
| CN102278530A (en) * | 2011-08-02 | 2011-12-14 | 天津大学 | Submarine pipeline buckle arrestor with guide plates |
| CN102359661A (en) * | 2011-08-22 | 2012-02-22 | 天津大学 | Method for manufacturing and fixing submarine pipeline buckle arrestor on basis of morphological energy adsorption |
| CN102954285B (en) * | 2012-11-14 | 2014-10-29 | 江苏中宜环科水体修复有限公司 | Multifunctional underwater fixing support |
| CN102954285A (en) * | 2012-11-14 | 2013-03-06 | 江苏中宜环科水体修复有限公司 | Multifunctional underwater fixing support |
| CN104033652A (en) * | 2014-06-05 | 2014-09-10 | 中国海洋石油总公司 | Buckle arrestor applicable to deepwater submarine pipeline |
| CN104455728A (en) * | 2014-11-25 | 2015-03-25 | 天津大学 | Method for controlling lateral displacement of submarine pipeline |
| CN104455728B (en) * | 2014-11-25 | 2016-06-29 | 天津大学 | A kind of submarine pipeline lateral displacement control method |
| CN105003739A (en) * | 2015-07-24 | 2015-10-28 | 天津大学 | Anchoring disk for controlling lateral movement of nakedly-laid submarine pipeline |
| CN105333227A (en) * | 2015-11-11 | 2016-02-17 | 哈尔滨工程大学 | Structure support device for treating suspended span of submarine pipeline |
| CN105333227B (en) * | 2015-11-11 | 2017-04-12 | 哈尔滨工程大学 | Structure support device for treating suspended span of submarine pipeline |
| CN107084281A (en) * | 2017-06-22 | 2017-08-22 | 中国海洋大学 | A kind of seabed flexible pipe laying fixing device |
| CN107084281B (en) * | 2017-06-22 | 2022-12-23 | 中国海洋大学 | Fixing device for laying seabed flexible pipe |
| CN113167410A (en) * | 2018-10-12 | 2021-07-23 | 弗利里吉尼有限公司 | Clamping device |
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| Publication number | Publication date |
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| CN101963257B (en) | 2013-01-23 |
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