CN202139590U - Auxiliary pile washout device of self-elevating platform - Google Patents
Auxiliary pile washout device of self-elevating platform Download PDFInfo
- Publication number
- CN202139590U CN202139590U CN 201120222545 CN201120222545U CN202139590U CN 202139590 U CN202139590 U CN 202139590U CN 201120222545 CN201120222545 CN 201120222545 CN 201120222545 U CN201120222545 U CN 201120222545U CN 202139590 U CN202139590 U CN 202139590U
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- CN
- China
- Prior art keywords
- buoyancy aid
- pipeline
- pile
- platform
- jack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides an auxiliary pile washout device of a self-elevating platform, which comprises a floating body and an injection pipeline, wherein the floating body is connected with the platform, a pipeline communicating with a corresponding pile shoe is arranged in the floating body; one end of the injection pipeline is connected with a high-pressure water source and the other end of the injection pipeline is connected with the pipeline. The auxiliary pile washout device of the self-elevating platform uses the floating body to reduce a backfilling capacity of the pile pit soil body after the floating body occupies the space, so that a pile extracting resistance of the platform is reduced. The auxiliary pile washout device of the self-elevating platform uses the pipeline to wash out the soil, and can liquefy the soil body, so that the compaction of the soil body around the pile pit is reduced and even avoided, thus the purpose of reducing the pile extracting resistance is achieved.
Description
Technical field
The utility model relates to the auxiliary pile punching apparatus of a kind of jack-up unit.
Background technology
Self-elevating drilling platform is the visual plant of offshore oil field development, and China mainly still utilizes jack-up unit to carry out the drilling operation of marine oil and gas at present.An important process before the jack-up unit operation is to carry out pitching pile and ballast, promptly utilizes the weight of platform and the weight of Ballast Water that platform leg, shoe are inserted into certain depth, to resist platform operating load and environmental load.But in a lot of marine sites, because the seabed soil bearing capacity is poor, shoe possibly injection arrived the big degree of depth below the mud line, as more than 30 meters.If platform is longer duty cycle, earth that platform stake hole caves in and the earth that back-silts will form more than shoe and harden, and increase pile extraction resistance, in the pile pulling process even the situation that platform device damages occurs.
The utility model content
The technical problem that the utility model will solve provides and a kind ofly can overcome the auxiliary pile punching apparatus that the above soil body of shoe hardens, effectively improves the platform permission limit pitching pile degree of depth.
In order to address the above problem, the utility model provides a kind of jack-up unit to assist pile punching apparatus, comprising:
Buoyancy aid, said buoyancy aid connects platform, and the pipeline that is communicated with corresponding shoe is set in the said buoyancy aid;
Inject pipeline, said injection pipeline one end connects high-pressure water, and the other end connects said pipeline.
Further, said buoyancy aid comprises that upper float, middle buoyancy aid reach buoyancy aid down.
Further, pipeline connects through the contraposition joint between said upper float, middle buoyancy aid and the following buoyancy aid.
Further, said upper float is fixedly connected platform leg with middle buoyancy aid through hanger; Weld between said bottom of buoyancy aid down and the platform pile shoe.
Further, be provided with in the said buoyancy aid and be used for inflatable air bag.
Further, be provided with the annular slab that is used to strengthen intensity in the said buoyancy aid.
The utlity model has following advantage:
1, in the utility model buoyancy aid is set, can reduces the backfill amount of the stake hole soil body after buoyancy aid takes up space, thereby reduce the pile extraction resistance of platform; The utility model utilizes pipe flushing earth, can liquefaction earth, and reduce a stake hole surrounding soil and harden even avoid hardening, arrive the purpose that reduces pile extraction resistance.
2, the utility model is simple in structure, and is workable, and is prone to realize, low preparation cost, and dependability is high, is convenient to promote the use of.
Description of drawings
Be described further below in conjunction with the embodiment of accompanying drawing the utility model:
Fig. 1 shows the auxiliary pile punching apparatus structural representation of a kind of jack-up unit of the utility model.
The specific embodiment
As shown in Figure 1, the utility model comprises buoyancy aid 1 and injects pipeline 2.Wherein buoyancy aid 1 is used to stop mud and is communicated with the water source; Inject pipeline 2 and be used for injecting water under high pressure, thereby realize washing away mud in platform 3 shoes 31 to buoyancy aid 1 pipeline 11.
Can immerse seawater in the buoyancy aid 1, but can not immerse mud, immersing behind the seawater can be heavy with seawater etc.Also can inflate in the buoyancy aid 1, so that carry out the auxiliary pile pulling of platform 3.Buoyancy aid 1 connects platform 3, takies space in the platform 3, so that stop mud.The pipeline 11 that is communicated with corresponding shoe 31 is set in the buoyancy aid 1, and this pipeline 11 can be with the water under high pressure water conservancy diversion that injects pipeline 2 to shoe 31, thereby shoe 31 is washed away, and avoids the mud plateization and overstocks in shoe 31.
Inject pipeline 2 one ends and connect high-pressure water, the other end connects pipeline 11.Injecting pipeline 2 can be injected into water under high pressure in the pipeline 11 of buoyancy aid 1, and washes away shoe 31 through this pipeline 11.
Adopt buoyancy aid 1 in the utility model, can reduce the backfill amount of the stake hole soil body after buoyancy aid 1 takes up space, thereby reduce the pile extraction resistance of platform 3; The utility model utilizes pipeline 11 to wash away earth, can liquefaction earth, and reduce a stake hole surrounding soil and harden even avoid hardening, arrive the purpose that reduces pile extraction resistance.
In the utility model, buoyancy aid 1 comprises that upper float 12, middle buoyancy aid 13 reach buoyancy aid 14 down.Because platform 3 is bigger, so if use the one buoyancy aid, volume is big, be not easy to make, cost of manufacture is very high, adopts split production, and also realizing easily standardization increases buoyancy aid 1 quantity according to desirability.
In the utility model, pipeline 11 connects through contraposition joint 15 between upper float 12, middle buoyancy aid 13 and the following buoyancy aid 14.Through contraposition joint 15, can realize the connection of pipeline 11.Usually can adopt gas thread to connect, connect and sealing with convenient.
In the utility model, upper float 12 is fixedly connected platform 3 spud legs 32 with middle buoyancy aid 13 through hanger 16; Welding between following buoyancy aid 14 bottoms and platform 3 shoes 31.Hanger 16 can conveniently connect spud leg 32, and makes things convenient for the installation and removal of buoyancy aid 1 on platform 3.
In the utility model, be provided with in the buoyancy aid 1 and be used for inflatable air bag 17.This air bag 17 need not be inflated in the time of following, when the needs pile pulling, can in air bag 17, charge into gas, so that alleviate the platform overall weight, realize auxiliary pile pulling.
In the utility model, be provided with the annular slab 18 that is used to strengthen intensity in the buoyancy aid 1.Use annular slab 18 can strengthen buoyancy aid 1 intensity, avoid buoyancy aid 1 under seawater impacts, to be damaged.
The utility model is simple in structure, and is workable, and is prone to realize, low preparation cost, and dependability is high, is convenient to promote the use of.
In sum; More than be merely the preferred embodiment of the utility model; It is not the protection domain that is used to limit the utility model; Therefore, any modification of being done within all spirit and principles at the utility model, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. the auxiliary pile punching apparatus of jack-up unit is characterized in that, comprising:
Buoyancy aid, said buoyancy aid connects platform, and the pipeline that is communicated with corresponding shoe is set in the said buoyancy aid;
Inject pipeline, said injection pipeline one end connects high-pressure water, and the other end connects said pipeline.
2. jack-up unit as claimed in claim 1 is assisted pile punching apparatus, it is characterized in that: said buoyancy aid comprises that upper float, middle buoyancy aid reach buoyancy aid down.
3. jack-up unit as claimed in claim 2 is assisted pile punching apparatus, it is characterized in that: pipeline connects through the contraposition joint between said upper float, middle buoyancy aid and the following buoyancy aid.
4. jack-up unit as claimed in claim 2 is assisted pile punching apparatus, it is characterized in that: said upper float is fixedly connected platform leg with middle buoyancy aid through hanger; Weld between said bottom of buoyancy aid down and the platform pile shoe.
5. like the auxiliary pile punching apparatus of the arbitrary described jack-up unit of claim 1-4, it is characterized in that: be provided with in the said buoyancy aid and be used for inflatable air bag.
6. jack-up unit as claimed in claim 5 is assisted pile punching apparatus, it is characterized in that: be provided with the annular slab that is used to strengthen intensity in the said buoyancy aid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120222545 CN202139590U (en) | 2011-06-28 | 2011-06-28 | Auxiliary pile washout device of self-elevating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120222545 CN202139590U (en) | 2011-06-28 | 2011-06-28 | Auxiliary pile washout device of self-elevating platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202139590U true CN202139590U (en) | 2012-02-08 |
Family
ID=45550653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120222545 Expired - Lifetime CN202139590U (en) | 2011-06-28 | 2011-06-28 | Auxiliary pile washout device of self-elevating platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202139590U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850235A (en) * | 2014-02-24 | 2014-06-11 | 浙江海洋学院 | Offshore platform pile leg protection device |
| CN106930290A (en) * | 2017-03-15 | 2017-07-07 | 中国海洋石油总公司 | One kind is for self-elevating drilling platform pile pulling auxiliary spray flushing device |
| CN108797588A (en) * | 2018-05-30 | 2018-11-13 | 江苏海上龙源风力发电有限公司 | A kind of weak soil sea bed offshore wind turbine single-pile foundation overall pulling down auxiliary mould and remove technique |
| CN112627181A (en) * | 2020-12-29 | 2021-04-09 | 交通运输部上海打捞局 | Pile inserting type ship external pile punching method |
-
2011
- 2011-06-28 CN CN 201120222545 patent/CN202139590U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850235A (en) * | 2014-02-24 | 2014-06-11 | 浙江海洋学院 | Offshore platform pile leg protection device |
| CN103850235B (en) * | 2014-02-24 | 2016-08-31 | 浙江海洋学院 | Ocean platform pile leg protection device |
| CN106930290A (en) * | 2017-03-15 | 2017-07-07 | 中国海洋石油总公司 | One kind is for self-elevating drilling platform pile pulling auxiliary spray flushing device |
| CN108797588A (en) * | 2018-05-30 | 2018-11-13 | 江苏海上龙源风力发电有限公司 | A kind of weak soil sea bed offshore wind turbine single-pile foundation overall pulling down auxiliary mould and remove technique |
| CN112627181A (en) * | 2020-12-29 | 2021-04-09 | 交通运输部上海打捞局 | Pile inserting type ship external pile punching method |
| CN112627181B (en) * | 2020-12-29 | 2021-12-21 | 交通运输部上海打捞局 | Pile inserting type ship external pile punching method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |