CN104896255B - A kind of maintenance fixture of the compliant riser based on ROV operation - Google Patents
A kind of maintenance fixture of the compliant riser based on ROV operation Download PDFInfo
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- CN104896255B CN104896255B CN201510195135.2A CN201510195135A CN104896255B CN 104896255 B CN104896255 B CN 104896255B CN 201510195135 A CN201510195135 A CN 201510195135A CN 104896255 B CN104896255 B CN 104896255B
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- fixture
- fixed part
- compliant riser
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- 238000012423 maintenance Methods 0.000 title claims abstract description 41
- 241000538562 Banjos Species 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000013535 sea water Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000008439 repair process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of maintenance fixture of the compliant riser based on ROV operation, including：The one annular fixture with opening, the outside wall surface of annular fixture of opening side has the first fixed part；Connector, one end is fixedly connected with the outside wall surface of the annular fixture of opening opposite side, and the other end can be matched with the first fixed part fixation；And banjo, it is arranged in the outside wall surface of annular fixture, and the jack being matched with the Plug Division of ROV is offered on banjo.Present invention can apply to technical field of petroleum extraction, and maintenance fixture can be in deep water and ultra-deep water environment, realize the reparation to compliant riser exterior waterproof coating damaged part, improve the service life of compliant riser, to prevent the deterioration further of compliant riser damaged part, slow down and prevent sea water to the corrosion of compliant riser inner shield it is ensured that compliant riser normally works safely.
Description
Technical field
The present invention relates to oil exploitation technology, the maintenance fixture of espespecially a kind of compliant riser based on ROV operation.
Background technology
The development producing with offshore oil and the increasing of marine facilities, increasing flexible pipe is applied as Deepwater Risers
Produce to offshore oil, this have flexible standpipe have outer protective sleeve outer layer protective sleeve intensity relatively low, with the external world
When occurring to clash into and rub, it is subject to damage, causes to rupture, once outer protective sleeve ruptures, sea water will be by rent
Enter in pipeline waterproof layer, contact with tension armor, armouring steel bar is caused corrode, the stress reducing tension armouring steel bar holds
Service life by ability, shortening compliant riser.If changed to standpipe, expense between 400～5,000,000 dollars,
And the cycle is longer, reach 10 months about；And the maintenance cost that standpipe is keeped in repair is then at 1,000,000 dollars about, and keep in repair week
Phase is shorter.Therefore, standpipe occur this rupture after if it is possible in time adopt ROV (Remote Operated Vehicle,
Underwater robot) to repair the outer protective sleeve of standpipe, active time after waterproof layer rupture for the standpipe can be extended, be avoided that again
Change the huge expenditure of standpipe.
Content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of maintenance fixture of the compliant riser based on ROV operation,
Can use cooperatively with ROV, be prevented from the deterioration further of standpipe damaged part, slow down and prevent sea water to compliant riser inside
The corrosion of armor is it is ensured that standpipe normally works safely.
In order to reach the purpose of the present invention, the invention provides a kind of maintenance fixture of the compliant riser based on ROV operation,
Including：The one annular fixture with opening, the outside wall surface of described annular fixture of described opening side has the first fixed part；
Connector, one end is fixedly connected with the outside wall surface of the described annular fixture of described opening opposite side, and the other end can be with described first
Fixed part matches fixation；And banjo, it is arranged in the outside wall surface of described annular fixture, and open up on described banjo
There is the jack matching with the Plug Division of described ROV.
Further, the internal face of described annular fixture is provided with elastic sealing gasket.
Further, the internal face of described elastic sealing gasket is coated with adhesive linkage.
Further, described elastic sealing gasket is rubber blanket；And/or, described adhesive linkage is resin bed；And/or, described jack
For the shoulder hole that opening size is little, inside dimensions are big.
Further, the described annular fixture with opening is the annular fixture with opening, and described connector is arc
Connector, the central angle corresponding to described opening of described annular fixture is 120 ° ± 10 °.
Further, the outside wall surface of described annular fixture of described opening opposite side have the second fixed part, described connection
One end of part is fixedly connected with described second fixed part, and corresponding to the line of described first fixed part and described second fixed part
Central angle be 150 ° ± 10 °.
Further, described second fixed part includes two lugs, and lug described in two is axially fixed in along described annular fixture
In the outside wall surface of described annular fixture, the axial distance between lug described in two and described lug arrive the edge of described annular fixture
Axial distance ratio be 2：1.
Further, described connector includes axial connecting rod, circumferential connecting rod and connecting plate, and the two of described axial connecting rod
End is fixedly connected with lug described in two respectively, and the middle part of described axial connecting rod is connected with one end of described circumference connecting rod, institute
The other end stating circumferential connecting rod can be matched with described first fixed part fixation, and described connecting plate is fixed on described circumference and connects
The middle part of bar.
Further, described first fixed part includes two lugs, has gap described in two between lug, described connector another
One end is provided with spacing preiection, and the other end of described connector may pass through described gap, and described spacing preiection can be resisted against two institutes
State on the side wall away from described opening of lug.
Further, described spacing preiection is swivel nut, and described swivel nut is provided with female thread, and the other end of described connector sets
There are the external screw thread matching with described female thread, the other end of described connector and described swivel nut bolt；Lug described in two
It is equipped with stopper slot away from the side wall of described opening, described swivel nut stretches in described stopper slot, and be resisted against described stopper slot
Cell wall on.
Compared to the prior art the maintenance fixture of the compliant riser based on ROV operation that the present invention provides, has and has as follows
Beneficial effect：
By arranging the banjo docking with ROV, realize the fixation of ROV and maintenance fixture, without using the machinery of ROV
Arm fixing maintenance fixture, is easy to mechanical arm and annular fixture is set in outside compliant riser, by connector and the first fixed part
It is fixed, and the central angle corresponding to opening of annular fixture is 120 ° ± 10 °, less than 180 °, so annular fixture is sheathed
After compliant riser is outer, the clamping force of itself can be utilized, be fixed on compliant riser, the mechanical arm without ROV is fixed,
The mechanical arm of ROV so can be liberated, be easy to mechanical arm operation connector, so in the mistake keeped in repair using maintenance fixture
Cheng Zhong, only needs a ROV can complete work, without using auxiliary ROV so that maintenance operation is simple, improves work efficiency；
Have resilient rubber blanket and there is cementability and elastomeric tree by setting on the internal face of annular fixture
Lipid layer, substantially increases the maintenance radial seal effect to compliant riser for the fixture；
By the center of circle corresponding to the line of setting the first fixed part fixing with connector two ends phase and the second fixed part
Angle is 150 ° ± 10 °, makes annular fixture in the presence of the fastening force that connector applies, preferably can wrap up compliant riser,
Radial seal is carried out to compliant riser；
By arranging the axial direction that the axial distance between two lugs of the second fixed part and lug arrive the edge of annular fixture
Ratio of distances constant is 2：1, when annular fixture being fastened on compliant riser using connector, the stressing conditions of annular fixture are good, no
Stress concentration；
By arranging swivel nut in the connector other end, so when swivel nut is resisted against on the cell wall of the stopper slot of the first fixed part
Afterwards, rotating connector can be passed through, adjust the length of connector between the first fixed part and the second fixed part, so that connector is incited somebody to action
Annular fixture is fastened on compliant riser.
Other features and advantages of the present invention will illustrate in the following description, and, partly become from description
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by description, rights
In claim and accompanying drawing, specifically noted structure is realizing and to obtain.
Brief description
Accompanying drawing is used for providing technical solution of the present invention is further understood, and constitutes a part for description, with this
The embodiment of application is used for explaining technical scheme together, does not constitute the restriction to technical solution of the present invention.
Fig. 1 is the perspective view of the maintenance fixture according to the compliant riser based on ROV operation of the present invention；
Fig. 2 is the perspective view at another visual angle of maintenance fixture shown in Fig. 1；
Fig. 3 is the perspective view at the another visual angle of maintenance fixture shown in Fig. 1；
Fig. 4 is the left view structural representation of maintenance fixture shown in Fig. 1；
Fig. 5 is the backsight structural representation of maintenance fixture shown in Fig. 1.
Wherein, in Fig. 1 to Fig. 5, the relation between reference and component names is：
1 connector, 10 circumferential connecting rods, 11 connecting plates, 12 axial connecting rods, 2 rubber blankets, 3 banjos, 30 jacks,
4C type fixture, 5 first fixed parts, 51 stopper slots, 6 swivel nuts, 7 second fixed parts.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case of not conflicting, in embodiment in the application and embodiment
Feature can mutual combination in any.
As shown in Figure 1 to Figure 3, present embodiments provide a kind of maintenance fixture of the compliant riser based on ROV operation, bag
Include：One annular fixture, connector 1 and the banjo 3 with opening.
Wherein, the cross section of the described annular fixture with opening is substantially C-shaped, and that is, described annular fixture is C-shaped fixture
4, and in the outside wall surface of described C-shaped fixture 4 of described opening side, there is the first fixed part 5；Described connector 1 is arc
Connector, one end of described connector 1 is fixedly connected with the outside wall surface of the described C-shaped fixture 4 of described opening opposite side, the other end
Can be matched fixation with described first fixed part 5；Described banjo 3 is arranged in the outside wall surface of described C-shaped fixture 4, and institute
State to offer on banjo 3 and match with the TDU (Tools Deployment Unit, Tool put-away device) of described ROV
Jack 30, it is preferable that described jack 30 is the shoulder hole that opening size is little, inside dimensions are big, the TDU of ROV sets resilient
Access Division, after TDU insertion jack, Access Division thereon is ejected, and is stuck at the ladder of shoulder hole it is achieved that Plug Division and jack
Fixation, that is, achieve ROV with maintenance fixture fixation.
The maintenance fixture of the compliant riser based on ROV operation that the present embodiment provides, including a c-type card with opening
Tool 4, connector 1 and banjo 3, connector 1 and banjo 3 are all connected with C-shaped fixture 4 and are connected as so that keeping in repair fixture
One entirety, so when banjo 3 and ROV TDU fixing after, the fixation of achievable ROV and maintenance fixture, without using
The mechanical arm of ROV fixing maintenance fixture, so can liberate the mechanical arm of ROV, be easy to mechanical arm and carry out other operations
(such as：C-shaped fixture 4 is set in outside compliant riser, connector 1 and the first fixed part 5 are fixed).
C-shaped fixture 4 is provided with opening, so that compliant riser can be entered in C-shaped fixture 4 from opening；One end of connector 1 with
The outside wall surface of the C-shaped fixture 4 of opening opposite side is fixedly connected, and the other end can be matched with the first fixed part 5 fixation, that is, in c-type
Before fixture 4 is socketed in compliant riser, the other end of connector 1 and the first fixed part 5 are separated, and that is, connector 1 is by C-shaped fixture
4 opening is opened, and after compliant riser is connected in C-shaped fixture 4, the other end of connector 1 and the first fixed part 5 is coordinated solid
Fixed, realize the fixation of maintenance fixture and compliant riser.
The maintenance fixture of the compliant riser based on ROV operation that the present invention provides, by setting dock with ROV to patching
3, without using the mechanical arm fixing maintenance fixture of ROV, it is easy to mechanical arm and C-shaped fixture 4 is set in outside compliant riser,
Connector 1 is fixed with the first fixed part 5, so during being keeped in repair using maintenance fixture, only needs a ROV
Work can be completed, without using auxiliary ROV so that maintenance operation is simple, improve work efficiency, extend compliant riser
Service life.
Need explanation make, ROV under water maintenance activity when, often use a kind of draw off gear TDU with instrument,
TDU is a kind of custom-designed tool kit, is arranged on front end or the rear end of ROV body.
Further, as shown in figure 1, the internal face of described C-shaped fixture 4 is provided with elastic sealing gasket it is preferable that described elasticity
Sealing gasket is rubber blanket 2.
After the other end of connector 1 and the first fixed part 5 fixation, make C-shaped fixture 4 and elastic sealing gasket stress, deformation, make
C-shaped fixture 4 can be secured firmly on compliant riser, and elastic sealing gasket can be close to the outside wall surface of compliant riser simultaneously, so
Elastic sealing gasket can preferably wrap up the damaged part of compliant riser, realize the radial seal to compliant riser, prevent sea water
Continue corrosion compliant riser after infiltration.
Further, the internal face of described elastic sealing gasket is coated with adhesive linkage it is preferable that described adhesive linkage is resin
Layer.
The setting of adhesive linkage, is conducive to the bonding of elastic sealing gasket and compliant riser damaged part, enhances elastic packing
The sealing effectiveness of pad.
Resin bed has good cementability, has good elasticity simultaneously, have resilient rubber blanket with have viscous
Connecing property and elastomeric resin layers, substantially increase the maintenance sealing effectiveness to compliant riser for the fixture.
Further, as shown in figure 4, the central angle alpha corresponding to the described opening of described C-shaped fixture 4 is 120 ° ± 10 °.
Central angle alpha corresponding to the opening of C-shaped fixture 4 is 120 ° ± 10 °, and such C-shaped fixture 4 is set in outside compliant riser
Afterwards, the clamping force of itself can be utilized, be fixed on compliant riser, the mechanical arm without ROV is fixed, so can liberate
The mechanical arm of ROV, is easy to mechanical arm operation connector 1.
Further, as shown in figure 4, there is the second fixed part in the outside wall surface of described C-shaped fixture 4 of described opening opposite side
7, one end of described connector 1 is fixedly connected with described second fixed part 7, and described first fixed part 5 and described second is fixed
Center of circle angle beta corresponding to the line in portion 7 is 150 ° ± 10 °.
The center of circle angle beta corresponding to line of the first fixed part 5 and the second fixed part 7 is 150 ° ± 10 °, i.e. 1 liang of connector
The central angle corresponding to line between end and the fixing point of C-shaped fixture 4 is 150 ° ± 10 °, using this connector 1 to c-type card
Tool 4 applies fastening force so that C-shaped fixture 4 can preferably wrap up compliant riser, compliant riser is sealed, prevents sea water
Continue the damaged part of corrosion compliant riser.
Further, as shown in figure 5, described second fixed part 7 includes two second lugs, the second lug described in two is along described C
In the outside wall surface being axially fixed in described C-shaped fixture 4 of type fixture 4, the axial distance L between the second lug described in two with described
The ratio of the axial distance L1 at the edge to described C-shaped fixture 4 for second lug is：L：L1=2：1.
Under such configuration, when C-shaped fixture 4 being fastened on compliant riser using connector 1, the stressing conditions of C-shaped fixture 4
Good, unstressed concentration.
Further, as shown in figure 5, described connector 1 includes axial connecting rod 12, circumferential connecting rod 10 and connecting plate 11,
The two ends of described axial connecting rod 12 are fixedly connected with the second lug described in two respectively, the middle part of described axial connecting rod 12 and institute
The one end stating circumferential connecting rod 10 is connected, and the other end of described circumference connecting rod 10 can be matched with described first fixed part 5 admittedly
Fixed, described connecting plate 11 is fixed on the middle part of described circumference connecting rod 10, and wherein connecting plate 11 is in the circumferential direction of compliant riser
Extend, and its axial width is more than connecting rod 12.
The setting of connecting plate 11 is so that connector 1 is increased with the contact area of compliant riser, it is to avoid compliant riser stress mistake
Deform greatly.
Further, as shown in figure 3, described first fixed part 5 includes two first lugs, have between first lug described in two
Gap, the other end of described circumference connecting rod 10 is provided with spacing preiection, and the other end of described circumference connecting rod 10 may pass through described
Gap, and described spacing preiection can be resisted against on the side wall away from described opening of first lug described in two.
So, after C-shaped fixture 4 snaps fit onto on compliant riser, the mechanical arm of ROV is by the other end of circumferential connecting rod 10
Bending, makes the spacing preiection of circumferential connecting rod 10 other end be resisted against away from the side wall of opening in first lug, simultaneously all
The gap playing avoidance effect to connecting rod 10 through two first lugs.
Further, as shown in Figure 3 and Figure 4, described spacing preiection is swivel nut 6, and described swivel nut 6 is provided with female thread, institute
The other end stating circumferential connecting rod 10 is provided with the external screw thread matching with described female thread, the other end of described circumference connecting rod 10
With described swivel nut 6 bolt；Stopper slot 51, described swivel nut are equipped with the side wall away from described opening of first lug described in two
6 stretch in described stopper slot 51, and are resisted against on the cell wall of described stopper slot 51.
Further, as shown in figure 4, the end of the other end of described circumference connecting rod 10 is formed with T-shaped handle.
Spacing preiection is swivel nut 6, and swivel nut 6 is spirally connected with the other end of circumferential connecting rod 10, so when swivel nut 6 is resisted against first
After on the cell wall of stopper slot 51 of fixed part 5, turning T-type handle can be passed through, adjust the first fixed part 5 and the second fixed part 7 it
Between connector 1 length, enable connector 1 that C-shaped fixture 4 to be fastened on compliant riser；The setting of stopper slot 51 simultaneously, can
When preventing compliant riser from expanding, swivel nut 6 and the first fixed part 5 depart from so that keeping in repair the good fixing effect of fixture, using reliability.
ROV and above-mentioned maintenance fixture cooperation, the detailed process that compliant riser is keeped in repair is as follows：
First, before maintenance fixture enters water, the swivel nut 6 of connector 1 other end is made to separate with the first fixed part 5, i.e. c-type card
The opening of tool 4 is in open mode；
Then, the Tool put-away device TDU that ROV carries is docked with the banjo 3 in C-shaped fixture 4 and fix, make dimension
Repair fixture to be fixed on TDU, then, decentralization ROV, to the damaged position of compliant riser, by operating ROV, allows C-shaped fixture 4 to snap into
The damaged part of compliant riser, and by ROV mechanical arm, connecting plate 11 is anchored to the surface of compliant riser, swivel nut 6 is resisted against
On the cell wall of stopper slot 51, and tighten the T-shaped handle of circumferential connecting rod 10 other end, realize the footpath to compliant riser for the C-shaped fixture 4
To sealing；
Finally, release the connection of TDU and banjo 3, withdraw ROV, complete installment work.
Although disclosed herein embodiment as above, described content only readily appreciates that the present invention adopts
Embodiment, is not limited to the present invention.Technical staff in any art of the present invention, is being taken off without departing from the present invention
On the premise of the spirit and scope of dew, any modification and change can be carried out in the form implemented and details, but the present invention
Scope of patent protection, still must be defined by appending claims and be defined.
Claims (8)
1. a kind of maintenance fixture of the compliant riser based on ROV operation is it is characterised in that include：
The one annular fixture with opening, the outside wall surface of described annular fixture of described opening side has the first fixed part；
Connector, the outside wall surface of the described annular fixture of one end and described opening opposite side is fixedly connected, the other end can with described
First fixed part matches fixation；With
Banjo, is arranged in the outside wall surface of described annular fixture, and offers slotting with described ROV on described banjo
The jack that socket part matches；
In the outside wall surface of described annular fixture of described opening opposite side, there is the second fixed part, described second fixed part includes two
Lug, two lugs of the second fixed part along in the outside wall surface being axially fixed in described annular fixture of described annular fixture, second
The axial distance at the edge to described annular fixture for the lug of the axial distance between two lugs of fixed part and the second fixed part
Ratio be 2: 1；
Described first fixed part includes two lugs, has gap between two lugs of the first fixed part, described connector another
End is provided with spacing preiection, and the other end of described connector may pass through described gap, and described spacing preiection can be resisted against first admittedly
On the side wall away from described opening of two lugs determining portion.
2. the compliant riser based on ROV operation according to claim 1 maintenance fixture it is characterised in that
The internal face of described annular fixture is provided with elastic sealing gasket.
3. the compliant riser based on ROV operation according to claim 2 maintenance fixture it is characterised in that
It is coated with adhesive linkage on the internal face of described elastic sealing gasket.
4. the compliant riser based on ROV operation according to claim 3 maintenance fixture it is characterised in that
Described elastic sealing gasket is rubber blanket；And/or
Described adhesive linkage is resin bed；And/or
Described jack is the shoulder hole that opening size is little, inside dimensions are big.
5. the maintenance fixture of the compliant riser based on ROV operation according to any one of claim 1-4, its feature exists
In,
The described annular fixture with opening is the annular fixture with opening, and described connector is arc connector, described
The central angle corresponding to described opening of annular fixture is 120 ° ± 10 °.
6. the compliant riser based on ROV operation according to claim 5 maintenance fixture it is characterised in that
In the outside wall surface of described annular fixture of described opening opposite side, there is the second fixed part, one end of described connector and institute
State first fixed part connect, and the central angle corresponding to line of described first fixed part and described second fixed part be 150 ° ±
10°.
7. the compliant riser based on ROV operation according to claim 1 maintenance fixture it is characterised in that
Described connector includes axial connecting rod, circumferential connecting rod and connecting plate, and the two ends of described axial connecting rod are respectively with the
Two lugs of two fixed parts are fixedly connected, and the middle part of described axial connecting rod is connected with one end of described circumference connecting rod, described
The other end of circumferential connecting rod can be matched with described first fixed part fixation, and described connecting plate is fixed on described circumference connecting rod
Middle part.
8. the compliant riser based on ROV operation according to claim 1 maintenance fixture it is characterised in that
Described spacing preiection is swivel nut, and described swivel nut is provided with female thread, and the other end of described connector is provided with interior with described
The external screw thread that screw thread matches, the other end of described connector and described swivel nut bolt；
It is equipped with stopper slot, described swivel nut stretches into described spacing on the side wall away from described opening of two lugs of the first fixed part
In groove, and it is resisted against on the cell wall of described stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195135.2A CN104896255B (en) | 2015-04-22 | 2015-04-22 | A kind of maintenance fixture of the compliant riser based on ROV operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510195135.2A CN104896255B (en) | 2015-04-22 | 2015-04-22 | A kind of maintenance fixture of the compliant riser based on ROV operation |
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| Publication Number | Publication Date |
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| CN104896255A CN104896255A (en) | 2015-09-09 |
| CN104896255B true CN104896255B (en) | 2017-03-08 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106979383B (en) * | 2017-05-24 | 2022-10-21 | 中国石油大学(北京) | Submarine pipeline defect repair tool |
| CN114775589A (en) * | 2022-03-29 | 2022-07-22 | 中建东设岩土工程有限公司 | Protection method for corrosion prevention of precast pile joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7464728B2 (en) * | 2005-08-29 | 2008-12-16 | Cairns James L | Pipe seal assembly and method |
| CN101956388B (en) * | 2010-09-27 | 2012-01-25 | 中国海洋石油总公司 | Novel clamp device and fixing method for grouting risers of ocean platform |
| CN202140739U (en) * | 2011-07-14 | 2012-02-08 | 天津市海王星海上工程技术有限公司 | Deepwater mechanical sealing pipe clip suitable for ROV (Remote Operated Vehicle) operation |
| CN104455742A (en) * | 2014-10-27 | 2015-03-25 | 中国海洋石油总公司 | Clamp structure for underwater control cable |
| CN204571883U (en) * | 2015-04-22 | 2015-08-19 | 中国海洋石油总公司 | A kind of maintenance jig of compliant riser |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |