CN203273003U - Maintenance and replacement device for crude oil vertical pipe of offshore platform - Google Patents
Maintenance and replacement device for crude oil vertical pipe of offshore platform Download PDFInfo
- Publication number
- CN203273003U CN203273003U CN 201320088652 CN201320088652U CN203273003U CN 203273003 U CN203273003 U CN 203273003U CN 201320088652 CN201320088652 CN 201320088652 CN 201320088652 U CN201320088652 U CN 201320088652U CN 203273003 U CN203273003 U CN 203273003U
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- cabin
- crude oil
- waterproof cabin
- waterproof
- offshore platform
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Abstract
The utility model discloses a maintenance and replacement device for a crude oil vertical pipe of an offshore platform. The maintenance and replacement device comprises a waterproof cabin, a circular-truncated-cone-shaped sealing assembly, a water suction pump and a waterproof cabin pipe clamp, wherein the waterproof cabin is of a cavity structure with an upward opening, the bottom of the waterproof cabin is provided with a through hole for the crude oil vertical pipe to penetrate through, the circular-truncated-cone-shaped sealing assembly is used for sealing a gap between the crude oil vertical pipe penetrating through the through hole and the waterproof cabin, the water suction pump is connected to the bottom of the waterproof cabin through a pipeline, and the waterproof cabin pipe clamp is connected with the waterproof cabin and an offshore platform pile leg respectively. The maintenance and replacement device has the advantages that the waterproof cabin is utilized for maintaining and replacing the crude oil vertical pipe of the offshore platform, the safety risk of offshore operation is reduced, guarantee is provided for the safety production of the platform, the production halt period of the platform is obviously shortened, and the cost and the manual output are greatly reduced.
Description
Technical field
The utility model relates to a kind of offshore platform crude oil standpipe maintain and replace device.
Background technique
The existing maintain and replace technology of offshore platform crude oil standpipe is divided into maintain and replace technology waterborne and underwater maintenance replacing technology according to the damage location difference, above water standpipe maintain and replace adopts conventional method to cut more than the water surface and changes the crude oil standpipe, can only keep in repair the above standpipe section of the water surface; Underwater portion standpipe maintain and replace technology mainly adopts saturation diving equipment and technology or air dive technology to carry out crude oil standpipe maintain and replace, and its shortcoming is that expense is high, long in time limit.
The model utility content
The purpose of this utility model is to provide near the impaired maintain and replace device that carries out of a kind of offshore platform crude oil standpipe waterline, utilize waterproof cabin to carry out offshore platform crude oil standpipe maintain and replace, reduce the security risk of operation on the sea, for platform safety production provides safeguard, and significantly shorten the platform stopping production cycle, significantly Cost reduction output.
In order to achieve the above object, adopt following technological scheme:
A kind of offshore platform crude oil standpipe maintain and replace device comprises:
Waterproof cabin, described waterproof cabin are the holding cavity structure of an opening upwards, and its bottom is provided with a through hole that supplies the crude oil standpipe to run through;
The frustoconic shape black box, it is used for sealing crude oil standpipe and passes crude oil standpipe after through hole and the gap between waterproof cabin;
Suction pump, it is discharged out of my cabin by the ponding that pipeline is connected in extraction cabin, waterproof cabin bottom;
The waterproof cabin pipe clamp, it connects respectively waterproof cabin and offshore platform spud leg.
Further, described waterproof cabin comprises the main cabin body that is positioned at the bottom and the inferior cabin body at middle part, and the wave suppression plate at top, and the quantity of described cabin body is greater than one.
Further, described main cabin body and the cabin body of being connected comprise respectively half cabin body of the symmetry combination that connects by rotatable bearing pin, and two halves cabins body is locked by hasp, and seals by sealing column, is provided with caulking gum between sealing column.
Further, also comprise the pipe clamp locking device, it is locked the waterproof cabin pipe clamp by screw rod on the water.
Further, described frustoconic shape black box comprises round platform duct, bottom, " V " shape rubber ring and annular band iron, described round platform duct and waterproof cabin fixed seal connection, and successively decrease from inside to outside from waterproof cabin in its aperture; Described " V " shape rubber ring be located at the crude oil standpipe and and the round platform duct between the gap, its opening upwards; Described annular band iron is fixedly connected with the crude oil standpipe, which is provided with fastening screw, and described fastening screw direction of advance is pointed to the opening of " V " shape rubber ring.
Further, comprise the press strip of being conflicted by fastening screw in the groove that the opening of described " V " shape rubber ring forms.
Further, described waterproof cabin pipe clamp comprises the arc pipe clamp of a semicircular pipe card and two symmetries, and the arc pipe of described two symmetries links and connects waterproof cabin, the solid offshore platform spud leg of described semicircular pipe chucking; Described waterproof cabin also comprises equalizer bar, and it is corresponding with the waterproof cabin pipe clamp, is located at the one side that waterproof cabin is connected with the waterproof cabin pipe clamp.
Further, described waterproof cabin pipe clamp is provided with disassembling device, and it is located at the surface of the arc pipe clamp of two symmetries, and conflicts with the offshore platform spud leg.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is realized replacing or the maintenance of crude oil standpipe by waterproof cabin, solved in the past expensive, the high problem consuming time of carrying out crude oil standpipe maintain and replace by saturation diving equipment and technology or air dive technology, effectively shortened the time of changing or safeguarding the crude oil standpipe, significantly Cost reduction output.
Description of drawings
Fig. 1 is the main structural framework schematic diagram of a kind of offshore platform crude oil standpipe maintain and replace device described in the utility model;
Fig. 2 is the structural representation of frustoconic shape black box described in the utility model;
Fig. 3 is the marine scheme of installation of device described in the utility model;
Fig. 4 is the flow chart of steps of a kind of offshore platform crude oil standpipe maintain and replace method described in the utility model.
Diagram: 10-waterproof cabin; 101-main cabin body; 102-inferior cabin body; 103-wave suppression plate; 20-waterproof cabin pipe clamp;
201-semicircle pipe clamp; 202-semicircle pipe clamp; 203-disassembling device; 30-frustoconic shape black box;
Round platform hole, 301-bottom; 302-" V " shape rubber rings; 303-annular band iron; 304-fastening screw; 305-press strip;
40-ponding cabin; 50-cat ladder; 60-bearing pin; 70-hasp; 80-equalizer bar; 90-pipe clamp locking device.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific implementation method, be used for explaining the utility model in schematic enforcement of the present utility model and explanation, but not as to restriction of the present utility model.
See also Fig. 1, it is the main structural framework schematic diagram of a kind of offshore platform crude oil standpipe maintain and replace device described in the utility model, comprises waterproof cabin 10, waterproof cabin pipe clamp 20, frustoconic shape black box 30 and suction pump.Waterproof cabin 10 is the holding cavity structure of an opening upwards, and its bottom is provided with a through hole that supplies the crude oil standpipe to run through.Frustoconic shape black box 30 is used for sealing crude oil standpipe and passes crude oil standpipe after through hole and the gap between waterproof cabin.Suction pump is connected to waterproof cabin bottom by pipeline and is located at the waterproof cabin bottom, from the ponding cabin 40 of waterproof cabin bottom, the ponding of waterproof cabin is extracted out out of my cabin.Waterproof cabin pipe clamp 20 connects respectively waterproof cabin 10 and offshore platform spud leg.This device can be used for repairing near offshore platform crude oil standpipe damaged part waterline.At first determine the damaged part position, according to morning and evening tides and wave on waterproof cabin impact, surrounding structure on the size height of factor design waterproof cabin such as construct of the much spaces of needs in the impact of waterproof cabin, waterproof cabin.
The waterproof cabin 10 of the present embodiment comprises main cabin body 101, inferior cabin body 102 and the wave suppression plate 103 that connects successively.Can realize by increasing and decreasing time quantity of cabin body 102 design height that waterproof cabin 10 is different.Main cabin body 101, inferior cabin body 102 form by half cabin body of two symmetries.Half symmetrical cabin body can be realized open closed by rotatable bearing pin 60, by hasp 70 quick lockings.Described hasp 70 is comprised of stainless steel, utilizes the chucking power of itself formation of structure that the two halves waterproof cabin is carried out pre-quick locking and opens soon, is used for waterproof cabin 10 quick locking two halves waterproof cabin when closed.When waterproof cabin 10 was closed, at the closure place, the two halves waterproof cabin was provided with sealing column, gets up by the clearance seal of sealing column with the two halves waterproof cabin, prevents from leaking.For strengthening sealing, also be provided with caulking gum between sealing column.In addition, waterproof cabin 10 inwalls are provided with cat ladder 50, and cat ladder 50 is close to the waterproof cabin wall firm welding, are used for the workmen and pass in and out waterproof cabin.
Described waterproof cabin pipe clamp 20 is comprised of a pair of semicircle Steel Pipe Clamp, and wherein a semicircular pipe card 201 is installed and is fastened on the waterproof cabin wallboard, and an other semicircular pipe card 202 is encircled spud leg, and waterproof cabin 10 is fixedly secured on spud leg.Wherein, the semicircle pipe clamp that is fastened on the waterproof cabin wallboard being installed is the arcuate structure of a symmetry.Be that whole waterproof cabin pipe clamp has been divided into three parts, a part is semicircle waterproof cabin pipe clamp, and two-part are respectively 1/4 circle waterproof cabin pipe clamp in addition.Because waterproof cabin pipe clamp 20 is producing larger tensile stress and moment by spud leg sealing surface place when fastening, namely two 1/4 round waterproof cabin pipe clamps can be due to tensile stress with waterproof cabin 10, and the sealing of sealing surface is understood destroyed.Destroyed in order to prevent sealing surface, the one side that is connected with waterproof cabin pipe clamp 20 at waterproof cabin 10 is provided with equalizer bar 80, and round the waterproof cabin pipe clamp is fastening is connected together with two 1/4 for described equalizer bar 80, and balance tensile stress and moment make sealing surface guarantee that sealing do not intake.
First waterproof cabin pipe clamp that the main cabin body of described waterproof cabin is corresponding is provided with disassembling device 203, and it is located at the surface of the arc pipe clamp of two symmetries, and conflicts with the offshore platform spud leg.Disassembling device 203 is one to be welded on the slug of waterproof cabin pipe clamp, in order to improve the Security of waterproof cabin, prevents that the waterproof cabin pipe clamp can't be fastenedly connected waterproof cabin to the offshore platform spud leg.When the wind speed at sea is larger, can be with slug and the welding of offshore platform spud leg.After replacing or safeguarding that the crude oil standpipe is complete, slug is cut off, waterproof cabin just can separate with the offshore platform spud leg like this.
Described pipe clamp locking device 90 comprises wedge and wedge guiding device.By screw rod, reverse on the water the screw rod upper end portion, the wedge that drives the screw rod underpart moves up and down, and locks the purpose of waterproof cabin pipe clamp under water to reach.
See also Fig. 2, described frustoconic shape black box comprises round platform duct, bottom 301, " V " shape rubber ring 302 and annular band iron 303.Described round platform duct 301 and waterproof cabin 10 bottom fixed seal connections, successively decrease from inside to outside from waterproof cabin in its aperture.Round platform duct 301 is used for running through the crude oil standpipe.Described " V " shape rubber ring 302 be located at the crude oil standpipe and and round platform duct 301 between the gap, its opening upwards.Described annular band iron 303 is fixedly connected with the crude oil standpipe, which is provided with fastening screw 304, and described fastening screw 304 directions of advance are pointed to the opening of " V " shape rubber ring 302.Comprise the press strip of being conflicted by fastening screw 304 in the groove that the opening of described " V " shape rubber ring 302 forms.When adjusting fastening screw 304, due to the pressure change of 304 pairs of press strips 305 of fastening screw, thus the pore size between change " V " shape rubber ring 302 and round platform duct 301 and crude oil standpipe.
Also be provided with detector for hazardous gas, underwater illuminating device and imaging means in described waterproof cabin 10.The safety attachments such as detector for hazardous gas, fire extinguisher are set simultaneously.See also Fig. 3, the requirement of based on crude standpipe damaged part and personnel's working space can realize by increasing and decreasing time quantity of cabin body 102 design height that waterproof cabin 10 is different.
Seeing also Fig. 4 is a kind of offshore platform crude oil standpipe maintain and replace method described in the utility model, comprises the following steps:
Step 1: the degree of depth of the set positions waterproof cabin that the based on crude standpipe need to be safeguarded or change.Investigate the offshore construction working condition, determine the design parameter of waterproof cabin.Waterproof cabin comprises main cabin body, inferior cabin body and wave suppression plate.The quantity of inferior cabin body is more than or equal to one.By regulating time quantity of cabin body, can increase or reduce the designed depth of waterproof cabin.After determining designed depth, determine sealing surface, hasp and waterproof cabin pipe clamp size and quantity according to the size of waterproof cabin.
Step 2: waterproof cabin is fixed in the offshore platform spud leg by the waterproof cabin pipe clamp.According to the offshore platform physical condition, design, set up the temporary structure platform and provide transportation route for waterproof cabin.The main suspension centre of waterproof cabin lifting is installed above crude oil standpipe damage position.Main cabin body lifts by crane, left and right two is semi-open, lower water.Be close to spud leg after arriving underwater penetration, left and right two semi-closed of main cabin body, locking pipe clamp locking device, the fastening offshore platform spud leg of waterproof cabin pipe clamp, by slug, waterproof cabin pipe clamp and offshore platform spud leg are welded, when needs are removed, only slug need to be cut off and just can.
Step 3: the frustoconic shape black box is installed in the gap between crude oil standpipe and waterproof cabin.Adjust fastening screw, press strip is conflicted near " V " shape rubber ring, thus the space between sealing round platform duct and crude oil standpipe.
Step 4: start suction pump the water in waterproof cabin is extracted out.Along with the water level in waterproof cabin descends, personnel's clamping bolt on fastening waterproof cabin sealing column from top to bottom in waterproof cabin.In lower water process, the wire rope of waterproof cabin left and right control waterproof cabin attitude will coordinate the degree of tightness wire rope to make waterproof cabin keep vertical, stable.The body lifting of inferior cabin is arranged on above the body of main cabin, then the top wave suppression plate is installed.
Step 5: safeguard or change the crude oil standpipe.The crude oil standpipe comprises inner and outer tubes.Remove the combustion gas in the crude oil standpipe, use cold work cutting crude oil standpipe inner tube, and keep ventilating in waterproof cabin.The left and right respectively tightens 1 clip near crude oil standpipe outer tube position to be cut, and the clip outer rim is respectively welded 1 hanger.Use guide chain, wire rope to be connected hanger with shackle, prevent that standpipe from cutting open the past tenesmus under Gravitative Loads of rear submerged riser.With flame cutting bending section crude oil standpipe lower end outer tube, the crude oil standpipe of upper bend distortion uses winch to hang away after being wound around suspender belt.Measure bending section standpipe Cutting Length, the double-deck seamless steel pipe of cutting equal length, inner and outer pipe two ends prepare groove.With the crude oil standpipe outer tube changed from the right and left and upper lower standing tube outer tube group to, welding, ultrasonic flaw detection, weld bond touch-up paint and 3PE are anticorrosion.
By the utility model, safeguard or when changing under water the crude oil standpipe, can not recycle saturation diving equipment, technology or air dive technology, saved expense, the maintenance of shortening or the time of replacing.
The above technological scheme that the utility model embodiment is provided is described in detail, used specific case herein the utility model embodiment's principle and mode of execution are set forth, above embodiment's explanation is only applicable to help to understand the utility model embodiment's principle; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, all will change on embodiment and application area, in sum, this description should not be construed as restriction of the present utility model.
Claims (8)
1. an offshore platform crude oil standpipe maintain and replace device, is characterized in that, comprising:
Waterproof cabin, described waterproof cabin are the holding cavity structure of an opening upwards, and its bottom is provided with a through hole that supplies the crude oil standpipe to run through;
The frustoconic shape black box, it is used for sealing crude oil standpipe and passes crude oil standpipe after through hole and the gap between waterproof cabin;
Suction pump, it is discharged out of my cabin by the ponding that pipeline is connected in extraction cabin, waterproof cabin bottom;
The waterproof cabin pipe clamp, it connects respectively waterproof cabin and offshore platform spud leg.
2. offshore platform crude oil standpipe maintain and replace device according to claim 1 is characterized in that: described waterproof cabin comprises the main cabin body that is positioned at the bottom and the inferior cabin body at middle part, and the wave suppression plate at top, and the quantity of described cabin body is greater than one.
3. offshore platform crude oil standpipe maintain and replace device according to claim 2, it is characterized in that: described main cabin body and the cabin body of being connected comprise respectively half cabin body of the symmetry combination that connects by rotatable bearing pin, two halves cabin body is locked by hasp, and seal by sealing column, be provided with caulking gum between sealing column.
4. offshore platform crude oil standpipe maintain and replace device according to claim 3, it is characterized in that: also comprise the pipe clamp locking device, it is locked the waterproof cabin pipe clamp by screw rod on the water.
5. offshore platform crude oil standpipe maintain and replace device according to claim 1, it is characterized in that: described frustoconic shape black box comprises round platform duct, bottom, " V " shape rubber ring and annular band iron, described round platform duct and waterproof cabin fixed seal connection, successively decrease from inside to outside from waterproof cabin in its aperture; Described " V " shape rubber ring be located at the crude oil standpipe and and the round platform duct between the gap, its opening upwards; Described annular band iron is fixedly connected with the crude oil standpipe, which is provided with fastening screw, and described fastening screw direction of advance is pointed to the opening of " V " shape rubber ring.
6. offshore platform crude oil standpipe maintain and replace device according to claim 5, is characterized in that: comprise the press strip of being conflicted by fastening screw in the groove that the opening of described " V " shape rubber ring forms.
7. according to claim 2-4 described offshore platform crude oil of arbitrary claim standpipe maintain and replace devices, it is characterized in that: described waterproof cabin pipe clamp comprises the arc pipe clamp of a semicircular pipe card and two symmetries, the arc pipe of described two symmetries links and connects waterproof cabin, the solid offshore platform spud leg of described semicircular pipe chucking; Described waterproof cabin also comprises equalizer bar, and it is corresponding with the waterproof cabin pipe clamp, is located at the one side that waterproof cabin is connected with the waterproof cabin pipe clamp.
8. offshore platform crude oil standpipe maintain and replace device according to claim 7, it is characterized in that: first waterproof cabin pipe clamp that the main cabin body of described waterproof cabin is corresponding is provided with disassembling device, it is located at the surface of the arc pipe clamp of two symmetries, and conflicts with the offshore platform spud leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088652 CN203273003U (en) | 2013-02-27 | 2013-02-27 | Maintenance and replacement device for crude oil vertical pipe of offshore platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088652 CN203273003U (en) | 2013-02-27 | 2013-02-27 | Maintenance and replacement device for crude oil vertical pipe of offshore platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203273003U true CN203273003U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320088652 Expired - Lifetime CN203273003U (en) | 2013-02-27 | 2013-02-27 | Maintenance and replacement device for crude oil vertical pipe of offshore platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203273003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006216A (en) * | 2013-02-27 | 2014-08-27 | 中国海洋石油总公司 | Offshore platform crude oil riser maintenance and replacement method and device |
| CN114811187A (en) * | 2022-04-24 | 2022-07-29 | 山东海盛海洋工程集团有限公司 | Dry-type work cabin is changed to sea pipe riser |
-
2013
- 2013-02-27 CN CN 201320088652 patent/CN203273003U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006216A (en) * | 2013-02-27 | 2014-08-27 | 中国海洋石油总公司 | Offshore platform crude oil riser maintenance and replacement method and device |
| CN104006216B (en) * | 2013-02-27 | 2016-04-13 | 中国海洋石油总公司 | A kind of crude oil of offshore platform standpipe maintain and replace method and apparatus |
| CN114811187A (en) * | 2022-04-24 | 2022-07-29 | 山东海盛海洋工程集团有限公司 | Dry-type work cabin is changed to sea pipe riser |
| CN114811187B (en) * | 2022-04-24 | 2022-11-01 | 山东海盛海洋工程集团有限公司 | Dry-type work cabin is changed to sea pipe riser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |