CN202852198U - Plugging device for annular space of undersea double-layer oil pipeline - Google Patents
Plugging device for annular space of undersea double-layer oil pipeline Download PDFInfo
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- CN202852198U CN202852198U CN2012205501563U CN201220550156U CN202852198U CN 202852198 U CN202852198 U CN 202852198U CN 2012205501563 U CN2012205501563 U CN 2012205501563U CN 201220550156 U CN201220550156 U CN 201220550156U CN 202852198 U CN202852198 U CN 202852198U
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Abstract
The utility model discloses a plugging device for annular space of an undersea double-layer oil pipeline. The oil pipeline comprises an outer pipe (14) and an inner pipe (13), wherein one end of the inner pipe (13) stretches from the outer pipe (14). The plugging device comprises an inner sleeve type pipe clamp (1) and an outer sleeve type pipe clamp (7), wherein one end of the inner sleeve type pipe clamp (1) is in sealing fit with the outer wall of the outer pipe (14), the other end of the inner sleeve type pipe clamp (1) is in sealing fit with the outer wall of the inner pipe (13), the inner sleeve type pipe clamp (1) is filled with a sealant (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 in sealing fit with the outer wall of the outer pipe (14), the other end of the outer sleeve type pipe clamp (7) is in sealing fit with the outer wall of the inner pipe (13), and the outer sleeve type pipe clamp (7) is filled with concrete (12). According to the plugging device, a clamp-in-clamp mode is adopted, the sealant and the concrete material are matched, and the problem of seal failure due to thermal expansion extension caused by 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 seabed double-layer oil delivery pipe annular space blocking device.
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 then is used for easily solidifying crude oil or mixed defeated (oil, gas, water) combining medium is carried.Because the chemical element composition in crude oil and the mixed defeated medium is various, thereby can the pipeline inner tubal wall of carrying be corroded, and has caused the leakage of pipeline through long-time corrosion, can force when serious to produce to stop, and causes the economic loss in oil field.Be such loss that reduces of minimum degree, repair damaging pipeline quickly.At present for the reparation main difficulty of bimetallic tube in the shutoff of inner and outer pipe annular space, 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 with prefabricated annular plugging device, form an annular groove cavity, load onto the 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, the injecting glue amount should be enough to guarantee to fill whole sealing compound space, has namely finished 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 links by hinges, and the internal diameter of closed rear whole circumference is definite according in advance theoretical calculating and experiment.When hydraulic fixture lay put in place after, oil hydraulic cylinder applies closing force, impel the firm nested structure of half opposite opened closed, because the inside radius after the closure is less than the free outer radius of outer layer pipe (generally be reduced to radial ringed gap original about 1/2), so that outer layer pipe produces larger controlled plastic deformation and Material Flow, make it to arrive the sturdy effect of annular space axial seal through all die heads in the firm cover of particular design.Load onto and adjust the two rows clamping bolt, reach and keeps axial seal so that the slide contact face of firm cover is compressed axial gasket, load onto the sealing gasket flange at two end faces at last, the compression axial gasket reaches and keeps axial seal.Permanently stay afterwards on the pipeline and need not remove.
Annular groove cavity forming injecting glue method and hydraulic fixture lateral extrusion deformation method all exist because the variation of inner tube conveying crude oil temperature can cause the elongation of inner tube heat expansion, cause annular shutoff to be lost efficacy.
Above-mentioned discussion content purpose is to introduce to the reader All aspects of of technology that may be relevant with the All aspects of of the present utility model that below will be described and/or advocate, believe that this discussion content helps to provide background information for the reader, to be conducive to understanding better All aspects of of the present utility model, therefore, should be appreciated that it is to read these discussions with this angle, rather than admit prior art.
The model utility content
The purpose of this utility model is to avoid deficiency of the prior art and a kind of seabed double-layer oil delivery pipe annular space blocking device is provided, it adopts card form in the card, be equipped with sealing compound and concrete material, solve the oil temperature variation and cause that the heat expansion elongation causes the problem of seal failure.
The purpose of this utility model 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, inner tube one end stretches out in outer tube, 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, be filled with sealing compound in the inner sleeve cartridge type pipe clamp, described overcoat cartridge type pipe clamp is enclosed within outside the 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, and are filled with concrete in the overcoat cartridge type pipe clamp.
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 the interval is fixed on described outer tube and the 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 the sealing compound inlet, and top is provided with the 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.
The beneficial effects of the utility model: owing to having adopted above-mentioned structure, inject sealing compound in the inner sleeve cartridge type pipe clamp of the present utility model, be hoop space plugged zone one after it solidifies, this layer only provides sealability; Inject concrete in the overcoat cartridge type pipe clamp, behind overcuring, outer pipe clamp and inner tube, outer tube are become one, can provide pipeline this moment axially and radially stressed, overcome inner tube and caused when oil temperature changes that its heat expansion is extended and cause the shutoff Problem of Failure.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not consist of any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying 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 on outer tube and the inner tube.
Fig. 3 is that the structure pipe clamp is mounted to the view on outer tube and the inner tube.
Fig. 4 is that overcoat cartridge type pipe clamp is mounted to the view on outer tube and the inner tube.
Embodiment
In order to make those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments the utility model is described in further detail, need to prove, in the situation that do not conflict, the application's embodiment and the feature among the embodiment can make up mutually.
Core of the present utility model is to provide a kind of seabed double-layer oil delivery pipe annular space blocking device, and it adopts card form in the card, is equipped with sealing compound and concrete material, solves the oil temperature variation and causes that the 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 described in the utility model double-layer oil delivery pipe annular space blocking device, described transport pipe comprises outer tube 14 and inner tube 13, and inner tube 13 1 ends stretch out in outer tube 14, and outer tube 14 and inner tube 13 consist of the 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.Be filled with sealing compound 5 in the described inner sleeve cartridge type pipe clamp 1, 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 the 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.Be filled with concrete 12 in the overcoat cartridge type pipe clamp 7, 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 the interval is fixed on described outer tube 14 and the 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 outside adhesion of telescopic pipe clamp of concrete.
When the utility model is installed, one 0.9 meter long inner sleeve cartridge type pipe clamp 1 being installed first at bimetallic tube annular space place first, is the sealing compound inlet in the lower end of interior pipe clamp, and the upper end is the sealing compound outlet.Interior pipe clamp one stomidium directly 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, the 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 the sealing compound outlet.Be hoop space plugged zone one after it solidifies, this layer only provides sealability.
One long 9 meters overcoat cartridge type pipe clamp is installed afterwards again, and there are 4 grouting ports the pipe clamp lower end outside, and there are 4 grout outlets the upper end.Diameter can be installed by inner sleeve cartridge type pipe clamp 1 smoothly greater than inner sleeve cartridge type pipe clamp 1.1.5 meters Chang'an, every interval fill a structure pipe clamp take the inner and outer pipe section as basic point on inside and outside pipeline, and it act as and improves the adhesion of concrete on outer wall on the pipeline; Weldering one radial clearance bar in 0.5 meter at every interval on the inwall of telescopic pipe clamp outside, its effect is to improve the outside adhesion of telescopic pipe clamp of concrete, overcoat cartridge type pipe clamp one stomidium directly 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.Inject concrete from grouting port afterwards, until overflow from grout outlet, show that concrete has been filled with in the space in the outer pipe clamp, behind overcuring, outer pipe clamp and pipeline are become one, can provide pipeline axially this moment and radially stressed, overcome inner tube and caused when oil temperature changes that its heat expansion is extended and cause the shutoff Problem of Failure.
To shown in Figure 4, adopt blocking device of the present utility model to carry out seabed double-layer oil delivery pipe annular space method for blocking such as Fig. 2, specifically comprise the steps:
By the inner sleeve cartridge type pipe clamp 1 of slinging of loop wheel machine on the ship, entry is installed under water under diver's guide, when inner sleeve cartridge type pipe clamp 1 one ends are enclosed within on the outer tube 14, when the other end is enclosed within on the inner tube inner tube 13, the diver carries out two ends and fills the installation of holding flange 2 tightly, the underwater sealing agent injection device that utilization is carried after finishing is connected on the sealing compound inlet 3 of inner sleeve cartridge type pipe clamp 1, carry out the injecting operation, when overflowing from sealing compound outlet 4 Deng sealing compound, stop sealing compound and inject operation, sealing compound inlet 3 and sealing compound outlet 4 the plug wire of screwing on, 1 installation of inner sleeve cartridge type pipe clamp;
The loop wheel machine structure pipe clamp 6 of slinging on the ship, the diver guides behind inner tube 13 and outer tube 14 corresponding mounting points, and diver under water screwing structure pipe clamp 6 bolts has namely finished installation;
The loop wheel machine overcoat cartridge type pipe clamp 7 of slinging on the ship, under the diver guides, it is enclosed within outside inner sleeve cartridge type pipe clamp 1 and the structure pipe clamp 6, and an end is enclosed within on the outer tube 14, when the other end is enclosed within on the inner tube inner tube 13, the diver carries out card top, two ends flange 8 and installs, slip casting pipeline with slip casting machine after finishing is connected on the grouting port 10 of overcoat cartridge type pipe clamp 7, carry out the slip casting operation, when overflowing from grout outlet 11 Deng concrete 12 slurries, stop the slip casting operation, the screw on plug wire of grouting port 10 and grout outlet 11,7 installations of overcoat cartridge type pipe clamp.
Set forth a lot of details so that fully understand the utility model in the top description, still, the utility model can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as the restriction to the utility model protection domain.
In a word; although the utility model has exemplified above-mentioned preferred implementation; but 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 utility model, otherwise all should be included in the protection domain of the present utility model.
Claims (8)
1. seabed double-layer oil delivery pipe annular space blocking device, described transport pipe comprises outer tube (14) and inner tube (13), inner tube (13) one ends stretch out in outer tube (14), 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, be filled with sealing compound (5) in the inner sleeve cartridge type pipe clamp (1), described overcoat cartridge type pipe clamp (7) is enclosed within outside the 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, and is filled with concrete (12) in the overcoat cartridge type pipe clamp (7).
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 the interval is fixed on described outer tube (14) and the inner tube (13).
3. seabed according to claim 1 double-layer oil delivery pipe annular space blocking device, it 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 claim 1 and 2 or 3 described seabed double-layer oil delivery pipe annular space blocking devices, 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, it 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, it 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), and 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205501563U CN202852198U (en) | 2012-10-25 | 2012-10-25 | Plugging device for annular space of undersea double-layer oil pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205501563U CN202852198U (en) | 2012-10-25 | 2012-10-25 | Plugging device for annular space of undersea double-layer oil pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN202852198U true CN202852198U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205501563U Expired - Lifetime CN202852198U (en) | 2012-10-25 | 2012-10-25 | Plugging device for annular space of undersea double-layer oil pipeline |
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| CN (1) | CN202852198U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900893A (en) * | 2012-10-25 | 2013-01-30 | 中国海洋石油总公司 | Plugging device and plugging method for annular space of submarine double-layer oil conveying pipe |
| CN103899844A (en) * | 2014-04-23 | 2014-07-02 | 中国海洋石油总公司 | Auxiliary installation machine tool of submarine pipeline mechanical pipe clamp |
| CN112253850A (en) * | 2020-09-23 | 2021-01-22 | 李明秀 | Submarine pipeline seals maintenance of equipment |
| WO2021232479A1 (en) * | 2020-05-19 | 2021-11-25 | 中交第四航务工程局有限公司 | Underwater repairing method for large-diameter hdpe pipeline |
-
2012
- 2012-10-25 CN CN2012205501563U patent/CN202852198U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900893A (en) * | 2012-10-25 | 2013-01-30 | 中国海洋石油总公司 | Plugging device and plugging method for annular space of submarine double-layer oil conveying pipe |
| CN102900893B (en) * | 2012-10-25 | 2014-11-26 | 中国海洋石油总公司 | Plugging device and plugging method for annular space of submarine double-layer oil conveying pipe |
| CN103899844A (en) * | 2014-04-23 | 2014-07-02 | 中国海洋石油总公司 | Auxiliary installation machine tool of submarine pipeline mechanical pipe clamp |
| WO2021232479A1 (en) * | 2020-05-19 | 2021-11-25 | 中交第四航务工程局有限公司 | Underwater repairing method for large-diameter hdpe pipeline |
| CN112253850A (en) * | 2020-09-23 | 2021-01-22 | 李明秀 | Submarine pipeline seals maintenance of equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Chinese CNOOC Building No. 25 Beijing 100010 Dongcheng District Chaoyangmen North Street Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC (China) Limited Zhanjiang Branch Patentee after: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. Address before: Chinese CNOOC Building No. 25 Beijing 100010 Dongcheng District Chaoyangmen North Street Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC (China) Limited Zhanjiang Branch Patentee before: Haiwangxing Ocean Engineering Technology Co., Ltd, Tianjin City |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20141126 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20141126 |
|
| RGAV | Abandon patent right to avoid regrant |