CN102900893B - Plugging device and plugging method for annular space of submarine double-layer oil conveying pipe - Google Patents
Plugging device and plugging method for annular space of submarine double-layer oil conveying pipe Download PDFInfo
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- CN102900893B CN102900893B CN201210411718.0A CN201210411718A CN102900893B CN 102900893 B CN102900893 B CN 102900893B CN 201210411718 A CN201210411718 A CN 201210411718A CN 102900893 B CN102900893 B CN 102900893B
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Abstract
The invention discloses a plugging device and plugging method for an annular space of a submarine double-layer oil conveying pipe. The oil conveying pipe comprise an outer pipe (14) and an inner pipe (13); one end of the inner pipe (13) stretches out of the outer pipe (14); the plugging device comprises an inner sleeve type pipe clamp (1) and an outer sleeve type pipe clamp (7); one end of the inner sleeve type pipe clamp (1) is matched with the outer wall of the outer pipe (14) in a sealing manner while the other end thereof is matched with the outer wall of the inner pipe (13) in the sealing manner; the inner sleeve type pipe clamp (1) is internally filled with a sealing agent (5); the outer sleeve type pipe clamp (7) is sleeved outside the inner sleeve type pipe clamp (1); one end of the outer sleeve type pipe clamp (7) is matched with the outer wall of the outer pipe (14) in the sealing manner while the other end thereof is matched with the outer wall of the inner pipe (13) in the sealing manner; and the outer sleeve type pipe clamp (7) is internally filled with concrete (12). As the clamp-in-clamp form is adopted, and the sealing agent and the concrete material are used in the invention, the problem of sealing failure caused by thermal elongation which is resulted from the change of the oil temperature is solved.
Description
Technical field
This practicality relates to a kind of submerged pipeline repairing device, specifically refers to a kind of seabed double-layer oil delivery pipe annular space blocking device, the invention still further relates to a kind of method for blocking.
Background technique
At present, submerged pipeline has single, double layer pipe, and mono-layer tube is mainly used in the gentle single medium transport of planting of marine water; Bimetallic tube is carried for easily solidifying crude oil or mixed defeated (oil, gas, water) combining medium.Because the chemical element composition in crude oil and mixed defeated medium is various, thereby can corrode the pipeline inner tubal wall of carrying, through long-time corrosion, cause the leakage of pipeline, when serious, can force to produce to stop, causing the economic loss in oil field.For such loss that reduces of minimum degree, to damaging pipeline, repair quickly.The current reparation main difficulty for bimetallic tube is in the shutoff of inner and outer pipe annular space, and the method for existing shutoff has annular groove cavity forming injecting glue method and hydraulic fixture lateral extrusion deformation method.
Annular groove cavity forming injecting glue method is by oil hydraulic cylinder or the external force such as knock and apply in the annular space that makes this device clamp-on inner and outer pipe by prefabricated annular plugging device, form an annular groove cavity, load onto sealing compound injection tool, the sealing compounds such as fast cure polyesters base resin, siloxane are passed through in the annular groove cavity of sealing compound injection tool high pressure injection moulding, injecting glue amount should be enough to guarantee to fill whole sealing compound space, has completed the shutoff of annular space after it solidifies.
Hydraulic fixture lateral extrusion deformation method is that hydraulic fixture is the firm nested structure of half opposite opened, and the upper end of two semi-circular segments is connected by hinges, and the internal diameter of closed rear whole circumference is definite according to theoretical calculating and experiment in advance.After hydraulic fixture is laid and is put in place, oil hydraulic cylinder applies closing force, impel the firm nested structure of half opposite opened closed, because the inside radius after closure is less than the free outer radius (generally radial ringed gap being reduced to 1/2 original left and right) of outer layer pipe, through all die heads in the firm cover of particular design, controlled plastic deformation and material that outer layer pipe generation is larger are flowed, make it to arrive the sturdy effect of annular space axial seal.Load onto and adjust two rows clamping bolt, make that the slide contact face of firm cover is compressed to axial gasket and reach and keep axial seal, finally at two end faces, load onto sealing gasket flange, compress axial gasket and reach and keep axial seal.Permanently stay afterwards on pipeline and do not need to remove.
All there is the variation due to inner tube conveying crude oil temperature in annular groove cavity forming injecting glue method and hydraulic fixture lateral extrusion deformation method, can cause the elongation of inner tube heat expansion, causes annular shutoff to be lost efficacy.
Above-mentioned discussion content object be to reader introduce may to below by the All aspects of of the relevant technology of the All aspects of of the present invention that are described and/or advocate, believe that this discussion content contributes to provide background information for reader, to be conducive to understanding better All aspects of of the present invention, therefore, should be appreciated that it is with this angle, to read these to discuss, rather than admit prior art.
Summary of the invention
The object of the invention is to avoid deficiency of the prior art and a kind of seabed double-layer oil delivery pipe annular space shutoff dress and method for blocking are provided, it adopts card form in card, be equipped with sealing compound and concrete material, solve oil temperature variation and cause that heat expansion elongation causes the problem of seal failure.
Object of the present invention is achieved through the following technical solutions:
A kind of seabed double-layer oil delivery pipe annular space blocking device is provided, described transport pipe comprises outer tube and inner tube, stretch out in outer tube inner tube one end, described blocking device comprises inner sleeve cartridge type pipe clamp, overcoat cartridge type pipe clamp, one end and the outer tube outer wall of described inner sleeve cartridge type pipe clamp are sealed and matched, the other end and outer wall of inner tube are sealed and matched, in inner sleeve cartridge type pipe clamp, be filled with sealing compound, described overcoat cartridge type pipe clamp is enclosed within outside inner sleeve cartridge type pipe clamp, one end and the outer tube outer wall of overcoat cartridge type pipe clamp are sealed and matched, the other end and outer wall of inner tube are sealed and matched, in overcoat cartridge type pipe clamp, be filled with concrete.
Wherein, described blocking device comprises several structure pipe clamps, and it is inner that described structural tube is positioned in described overcoat cartridge type pipe clamp, and interval is fixed in described outer tube and inner tube.
Wherein, the inwall of described overcoat cartridge type pipe clamp is arranged at intervals with annular rib.
Wherein, described inner sleeve cartridge type pipe clamp, overcoat cartridge type pipe clamp are hinge-type cartridge type pipe clamp.
Wherein, described inner sleeve cartridge type pipe clamp bottom is provided with sealing compound inlet, and top is provided with sealing compound outlet.
Wherein, the two ends of described inner sleeve cartridge type pipe clamp are respectively equipped with to fill holds flange tightly, and the two ends of inner sleeve cartridge type pipe clamp are held flange tightly by filling and are sealed and matched with outer tube, outer wall of inner tube respectively.
Wherein, described overcoat cartridge type pipe clamp bottom is provided with grouting port, and top is provided with grout outlet.
Wherein, the two ends of described overcoat cartridge type pipe clamp are respectively equipped with card top flange, and the two ends of overcoat cartridge type pipe clamp are sealed and matched with outer tube, outer wall of inner tube respectively by card top flange.
A seabed double-layer oil delivery pipe annular space method for blocking, comprises the steps:
By the inner sleeve cartridge type pipe clamp of slinging of loop wheel machine on ship, in diver's guide, being lowered to water installs under water, when inner sleeve cartridge type pipe clamp one end is enclosed within on outer tube, when the other end is enclosed within inner tube inner tube, diver carries out two ends and fills the installation of holding flange tightly, the underwater sealing agent injection device that after completing, utilization is carried is connected on the sealing compound inlet of inner sleeve cartridge type pipe clamp, carry out injecting operation, while overflowing from sealing compound outlet Deng sealing compound, stop sealing compound and inject operation, the plug wire of sealing compound inlet and sealing compound outlet of screwing on, the installation of inner sleeve cartridge type pipe clamp;
The loop wheel machine structure pipe clamp of slinging on ship, diver guides behind the corresponding mounting point of inner and outer tubes, and diver under water screwing structure pipe clamp bolt has completed installation;
The loop wheel machine overcoat cartridge type pipe clamp of slinging on ship, under diver guides, it is enclosed within outside inner sleeve cartridge type pipe clamp and structure pipe clamp, and one end is enclosed within on outer tube, the other end is while being enclosed within inner tube inner tube, diver carries out card top, two ends flange and installs, and after completing, the slip casting pipeline of slip casting machine is connected on the grouting port of overcoat cartridge type pipe clamp, carries out slip casting operation, while overflowing from grout outlet Deng concrete mortar, stop slip casting operation, the plug wire of screw on grouting port and grout outlet, the installation of overcoat cartridge type pipe clamp.
Beneficial effect of the present invention: owing to having adopted above-mentioned structure, inject sealing compound in inner sleeve cartridge type pipe clamp of the present invention, be hoop space plugged zone one after it solidifies, this layer only provides sealability; Inject concrete in overcoat cartridge type pipe clamp, after overcuring, outer pipe clamp and inner tube, outer tube are become one, axially and radially stressed of pipeline now can be provided, overcome inner tube and when oil temperature changes, caused that its heat expansion elongation causes shutoff Problem of Failure.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, is not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of seabed double-layer oil delivery pipe annular space blocking device.
Fig. 2 is that inner sleeve cartridge type pipe clamp is mounted to the view in outer tube and inner tube.
Fig. 3 is that structure pipe clamp is mounted to the view in outer tube and inner tube.
Fig. 4 is that overcoat cartridge type pipe clamp is mounted to the view in outer tube and inner tube.
Embodiment
In order to make those skilled in the art understand better technological scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, it should be noted that, in the situation that not conflicting, the application's embodiment and the feature in embodiment can combine mutually.
Core of the present invention is to provide a kind of seabed double-layer oil delivery pipe annular space blocking device and method for blocking, and it adopts card form in card, is equipped with sealing compound and concrete material, solves oil temperature variation and causes that heat expansion elongation causes the problem of seal failure.Its structural type simplicity of design, material obtains easily, thereby has significantly saved expense.
As shown in Figure 1, seabed of the present invention double-layer oil delivery pipe annular space blocking device, described transport pipe comprises outer tube 14 and inner tube 13, and stretch out in outer tube 14 inner tube 13 one end, and outer tube 14 and inner tube 13 form double-layer oil delivery pipe line.Described blocking device comprises inner sleeve cartridge type pipe clamp 1, overcoat cartridge type pipe clamp 7, and described inner sleeve cartridge type pipe clamp 1, overcoat cartridge type pipe clamp 7 are hinge-type cartridge type pipe clamp.One end of described inner sleeve cartridge type pipe clamp 1 and outer tube 14 outer walls are sealed and matched, the other end and inner tube 13 outer walls are sealed and matched, the two ends of described inner sleeve cartridge type pipe clamp 1 are respectively equipped with to fill holds flange 2 tightly, and the two ends of inner sleeve cartridge type pipe clamp 1 are held flange 2 tightly by filling and are sealed and matched with outer tube 14, inner tube 13 outer walls respectively.In described inner sleeve cartridge type pipe clamp 1, be filled with sealing compound 5, described inner sleeve cartridge type pipe clamp 1 bottom is provided with sealing compound inlet 3, and top is provided with sealing compound outlet 4.Described overcoat cartridge type pipe clamp 7 is enclosed within outside inner sleeve cartridge type pipe clamp 1, one end of overcoat cartridge type pipe clamp 7 and outer tube 14 outer walls are sealed and matched, the other end and inner tube 13 outer walls are sealed and matched, the two ends of described overcoat cartridge type pipe clamp 7 are respectively equipped with card top flange 8, and the two ends of overcoat cartridge type pipe clamp 7 are sealed and matched with outer tube 14, inner tube 13 outer walls respectively by card top flange 8.In overcoat cartridge type pipe clamp 7, be filled with concrete 12, described overcoat cartridge type pipe clamp 7 bottoms are provided with grouting port 10, and top is provided with grout outlet 11.
Described blocking device comprises several structure pipe clamps 6, and described structure pipe clamp 6 is positioned at described overcoat cartridge type pipe clamp 7 inside, and interval is fixed in described outer tube 14 and inner tube 13, and the effect of structure pipe clamp 6 is to improve concrete at the adhesion of outer tube 14 and inner tube 13.The inwall of described overcoat cartridge type pipe clamp 7 is arranged at intervals with annular rib 9.The effect of annular rib is to improve the concrete adhesion of telescopic pipe clamp outside.
When the present invention installs, first the inner sleeve cartridge type pipe clamp 1 of 0.9 meter long being first installed at bimetallic tube annular space place, is sealing compound inlet in the lower end of interior pipe clamp, and upper end is sealing compound outlet.Aperture, interior pipe clamp one end is outer tube diameter, the other end aperture is diameter of inner pipe, tight a bolt and with nut, jig generation clamping action is fixed on inner tube, outer tube, and the filling of jig is held flange component tightly in the clamping of the two ends of pipe, produced a sealing radially, by injecting sealing compound in the inside pipe clamp confined space of sealing compound inlet, make it be full of whole interior pipe clamp inner space afterwards, until sealing compound overflows from sealing compound outlet.After it solidifies, be hoop space plugged zone one, this layer only provides sealability.
The overcoat cartridge type pipe clamp of one long 9 meters is installed afterwards again, and there are 4 grouting ports pipe clamp lower end outside, and there are 4 grout outlets upper end.Diameter is greater than inner sleeve cartridge type pipe clamp 1, can by inner sleeve cartridge type pipe clamp 1, install smoothly.The inner and outer pipe section of take on inside and outside pipeline fills a structure pipe clamp at interval of 1.5 meters of Chang'an as basic point, and it act as and improves concrete adhesion on outer wall on pipeline; On the inwall of telescopic pipe clamp, at interval of 0.5 meter, weld one radial clearance bar outside, its effect is to improve the concrete adhesion of telescopic pipe clamp outside, aperture, overcoat cartridge type pipe clamp one end is outer tube diameter, the other end aperture is diameter of inner pipe, and the two ends shutoff of pipe clamp needs two hinge members on the flange of tightening card top, make outer tube be stuck in the radial clamping of pipe, produced a sealing radially, to form the seal space of outer pipe clamp.From grouting port, inject concrete afterwards, until overflow from grout outlet, show that in outer pipe clamp, concrete has been filled with in space, after overcuring, outer pipe clamp and pipeline are become one, pipeline now can be provided axially and radially stressed, has overcome inner tube and when oil temperature changes, has caused that its heat expansion elongation causes shutoff Problem of Failure.
As shown in Figures 2 to 4, seabed of the present invention double-layer oil delivery pipe annular space method for blocking, it adopts above-mentioned blocking device, specifically comprises the steps:
By the inner sleeve cartridge type pipe clamp 1 of slinging of loop wheel machine on ship, in diver's guide, being lowered to water installs under water, when inner sleeve cartridge type pipe clamp 1 one end is enclosed within on outer tube 14, when the other end is enclosed within inner tube inner tube 13, diver carries out two ends and fills the installation of holding flange 2 tightly, the underwater sealing agent injection device that after completing, utilization is carried is connected on the sealing compound inlet 3 of inner sleeve cartridge type pipe clamp 1, carry out injecting operation, while overflowing from sealing compound outlet 4 Deng sealing compound, stop sealing compound and inject operation, the plug wire of sealing compound inlet 3 and sealing compound outlet 4 of screwing on, 1 installation of inner sleeve cartridge type pipe clamp,
The loop wheel machine structure pipe clamp 6 of slinging on ship, diver guides behind inner tube 13 and the corresponding mounting point of outer tube 14, and diver under water screwing structure pipe clamp 6 bolts has completed installation;
The loop wheel machine overcoat cartridge type pipe clamp 7 of slinging on ship, under diver guides, it is enclosed within outside inner sleeve cartridge type pipe clamp 1 and structure pipe clamp 6, and one end is enclosed within on outer tube 14, the other end is while being enclosed within inner tube inner tube 13, diver carries out card top, two ends flange 8 and installs, after completing, the slip casting pipeline of slip casting machine is connected on the grouting port 10 of overcoat cartridge type pipe clamp 7, carry out slip casting operation, while overflowing from grout outlet 11 Deng concrete 12 slurries, stop slip casting operation, the screw on plug wire of grouting port 10 and grout outlet 11,7 installations of overcoat cartridge type pipe clamp.
In description above, set forth a lot of details so that fully understand the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as limiting the scope of the invention.
In a word; although the present invention has exemplified above-mentioned preferred implementation, should illustrate, although those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (9)
1. a seabed double-layer oil delivery pipe annular space blocking device, described transport pipe comprises outer tube (14) and inner tube (13), stretch out in outer tube (14) inner tube (13) one end, it is characterized in that: described blocking device comprises inner sleeve cartridge type pipe clamp (1), overcoat cartridge type pipe clamp (7), one end of described inner sleeve cartridge type pipe clamp (1) and outer tube (14) outer wall are sealed and matched, the other end and inner tube (13) outer wall is sealed and matched, in inner sleeve cartridge type pipe clamp (1), be filled with sealing compound (5), described overcoat cartridge type pipe clamp (7) is enclosed within outside inner sleeve cartridge type pipe clamp (1), one end of overcoat cartridge type pipe clamp (7) and outer tube (14) outer wall are sealed and matched, the other end and inner tube (13) outer wall is sealed and matched, in overcoat cartridge type pipe clamp (7), be filled with concrete (12).
2. seabed according to claim 1 double-layer oil delivery pipe annular space blocking device, it is characterized in that: described blocking device comprises several structure pipe clamps (6), described structure pipe clamp (6) is positioned at described overcoat cartridge type pipe clamp (7) inside, and interval is fixed in described outer tube (14) and inner tube (13).
3. seabed according to claim 1 double-layer oil delivery pipe annular space blocking device, is characterized in that: the inwall of described overcoat cartridge type pipe clamp (7) is arranged at intervals with annular rib (9).
4. according to the seabed double-layer oil delivery pipe annular space blocking device described in claim 1 or 2 or 3, it is characterized in that: described inner sleeve cartridge type pipe clamp (1), overcoat cartridge type pipe clamp (7) are hinge-type cartridge type pipe clamp.
5. seabed according to claim 4 double-layer oil delivery pipe annular space blocking device, is characterized in that: described inner sleeve cartridge type pipe clamp (1) bottom is provided with sealing compound inlet (3), and top is provided with sealing compound outlet (4).
6. seabed according to claim 5 double-layer oil delivery pipe annular space blocking device, it is characterized in that: the two ends of described inner sleeve cartridge type pipe clamp (1) are respectively equipped with to fill holds flange (2) tightly, and the two ends of inner sleeve cartridge type pipe clamp (1) are held flange (2) tightly by filling and are sealed and matched with outer tube (14), inner tube (13) outer wall respectively.
7. seabed according to claim 4 double-layer oil delivery pipe annular space blocking device, is characterized in that: described overcoat cartridge type pipe clamp (7) bottom is provided with grouting port (10), and top is provided with grout outlet (11).
8. seabed according to claim 7 double-layer oil delivery pipe annular space blocking device, it is characterized in that: the two ends of described overcoat cartridge type pipe clamp (7) are respectively equipped with card top flange (8), the two ends of overcoat cartridge type pipe clamp (7) are sealed and matched with outer tube (14), inner tube (13) outer wall respectively by card top flange (8).
9. a seabed double-layer oil delivery pipe annular space method for blocking, is characterized in that, comprises the steps:
By the inner sleeve cartridge type pipe clamp (1) of slinging of loop wheel machine on ship, in diver's guide, being lowered to water installs under water, when inner sleeve cartridge type pipe clamp (1) one end is enclosed within on outer tube (14), when the other end is enclosed within inner tube (13), diver carries out two ends and fills the installation of holding flange (2) tightly, the underwater sealing agent injection device that after completing, utilization is carried is connected on the sealing compound inlet (3) of inner sleeve cartridge type pipe clamp (1), carry out injecting operation, while overflowing from sealing compound outlet (4) Deng sealing compound, stop sealing compound and inject operation, the plug wire of sealing compound inlet (3) and sealing compound outlet (4) of screwing on, inner sleeve cartridge type pipe clamp (1) installation,
The loop wheel machine structure pipe clamp (6) of slinging on ship, diver guides behind inner tube (13) and the corresponding mounting point of outer tube (14), and diver under water screwing structure pipe clamp (6) bolt has completed installation;
The loop wheel machine overcoat cartridge type pipe clamp (7) of slinging on ship, under diver guides, it is enclosed within outside inner sleeve cartridge type pipe clamp (1) and structure pipe clamp (6), and one end is enclosed within on outer tube (14), when the other end is enclosed within inner tube (13), diver carries out card top, two ends flange (8) and installs, after completing, the slip casting pipeline of slip casting machine is connected on the grouting port (10) of overcoat cartridge type pipe clamp (7), carry out slip casting operation, while overflowing from grout outlet (11) Deng concrete (12) slurry, stop slip casting operation, the screw on plug wire of grouting port (10) and grout outlet (11), overcoat cartridge type pipe clamp (7) installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411718.0A CN102900893B (en) | 2012-10-25 | 2012-10-25 | Plugging device and plugging method for annular space of submarine double-layer oil conveying pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210411718.0A CN102900893B (en) | 2012-10-25 | 2012-10-25 | Plugging device and plugging method for annular space of submarine double-layer oil conveying pipe |
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| Publication Number | Publication Date |
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| CN102900893A CN102900893A (en) | 2013-01-30 |
| CN102900893B true CN102900893B (en) | 2014-11-26 |
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| CN201210411718.0A Expired - Fee Related CN102900893B (en) | 2012-10-25 | 2012-10-25 | Plugging device and plugging method for annular space of submarine double-layer oil conveying pipe |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253850B (en) * | 2020-09-23 | 2022-10-14 | 深圳腾跃知识产权服务有限公司 | Submarine pipeline seals maintenance of equipment |
| CN112161142B (en) * | 2020-10-31 | 2022-04-05 | 山东中力高压阀门股份有限公司 | Pipeline water injection valve and seabed conveying pipeline using same |
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Address after: Chinese CNOOC Building No. 25 Beijing 100010 Dongcheng District Chaoyangmen North Street Applicant after: China National Offshore Oil Corporation Applicant after: CNOOC (China) Limited Zhanjiang Branch Applicant after: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. Address before: Chinese CNOOC Building No. 25 Beijing 100010 Dongcheng District Chaoyangmen North Street Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC (China) Limited Zhanjiang Branch Applicant before: Haiwangxing Ocean Engineering Technology Co., Ltd, Tianjin City |
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Granted publication date: 20141126 Termination date: 20181025 |