CN104896255A - ROV operation-based maintenance clamp of flexible stand pipe - Google Patents
ROV operation-based maintenance clamp of flexible stand pipe Download PDFInfo
- Publication number
- CN104896255A CN104896255A CN201510195135.2A CN201510195135A CN104896255A CN 104896255 A CN104896255 A CN 104896255A CN 201510195135 A CN201510195135 A CN 201510195135A CN 104896255 A CN104896255 A CN 104896255A
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- jig
- fixing part
- opening
- rov
- compliant riser
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an ROV operation-based maintenance clamp of a flexible stand pipe. The clamp comprises an annular clamp body with an opening, a connection piece and an abutted plug. The outer wall face of the annular clamp body on one side of the opening is provided with a first fixed part. One end of the connection piece is fixedly connected to the outer wall face on the other side of the opening of the annular clamp body and the other end cooperates with and is fixed on the first fixed part. The abutted plug is arranged on the outer wall face of the annular clamp body. A socket cooperating with a plug-in part of an ROV is arranged in the abutted plug. According to the invention, the clamp can be applied in the field of petroleum exploitation technology; and repairing for a damage part of an outer waterproof layer of the flexible stand pipe can be achieved in deep water and ultra-deep water environment. Thus, service lifetime of the flexible stand pipe is extended, further deterioration of the damaged part of the flexible stand pipe is avoided, corrosion to an internal armor layer of the flexible stand pipe by ocean is slowed down and stopped, and safe and normal work of the flexible stand pipe is ensured.
Description
Technical field
The present invention relates to oil exploitation technology, espespecially a kind of maintenance jig of the compliant riser based on ROV operation.
Background technique
Along with the development of offshore oil production and increasing of marine facilities; increasing flexible pipe is applied to offshore oil as Deepwater Risers and produces; the intensity that this standpipe with flexibility has outer protective sleeve outer layer protective sleeve is lower; when occurring to clash into and rub with the external world; easily suffer damage, cause and break; once outer protective sleeve breaks; seawater will enter in pipeline waterproof layer by rent; contact with tension armor; corrosion caused to armouring steel bar, reduces the stress ability to bear of tension armouring steel bar, shorten the working life of compliant riser.If changed standpipe, then expense is between 400 ~ 5,000,000 dollars, and the cycle is longer, reaches about 10 months; The maintenance expenses of keeping in repair standpipe is then at about 1,000,000 dollars, and service cycle is shorter.Therefore, after this breaking occurs standpipe, if ROV (Remote Operated Vehicle, underwater robot) can be adopted in time to repair the outer protective sleeve of standpipe, the active time of standpipe after watertightness barrier breaks can be extended, the huge expenditure changing standpipe can be avoided again.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of maintenance jig of the compliant riser based on ROV operation, can with ROV with the use of, the further deterioration of standpipe damaged part can be prevented, slow down and prevent the corrosion of seawater to compliant riser inner shield, guaranteeing that standpipe safety normally works.
In order to reach object of the present invention, the invention provides a kind of maintenance jig of compliant riser based on ROV operation, comprising: an annular jig with opening, the outer wall of the described annular jig of described opening side has the first fixing part; Link, one end is fixedly connected with the outer wall of the described annular jig of described opening opposite side, and the other end can match fixing with described first fixing part; And banjo, be arranged in the outer wall of described annular jig, and described banjo offer the jack matched with the cutting graftage part of described ROV.
Further, the internal face of described annular jig is provided with elastic sealing gasket.
Further, the internal face of described elastic sealing gasket is coated with adhesive layer.
Further, described elastic sealing gasket is rubber pad; And/or described adhesive layer is resin layer; And/or described jack is the shoulder hole that opening size is little, Inner Dimension is large.
Further, described in there is opening annular jig be the ring jig with opening, described link is arc connector, and the central angle corresponding to described opening of described ring jig is 120 ° ± 10 °.
Further, the outer wall of the described annular jig of described opening opposite side has the second fixing part, one end of described link is fixedly connected with described second fixing part, and the central angle corresponding to line of described first fixing part and described second fixing part is 150 ° ± 10 °.
Further, described second fixing part comprises two lugs, lug described in two is along in the outer wall being axially fixed in described annular jig of described annular jig, and the axial distance described in two between lug and described lug are 2:1 to the ratio of the axial distance at the edge of described annular jig.
Further, described link comprises axial connecting rod, circumferential connecting rod and fastening sheet, the two ends of described axial connecting rod are fixedly connected with lug described in two respectively, the middle part of described axial connecting rod is connected with one end of described circumferential connecting rod, the other end of described circumferential connecting rod can match fixing with described first fixing part, and described fastening sheet is fixed on the middle part of described circumferential connecting rod.
Further, described first fixing part comprises two lugs, has gap described in two between lug, and the other end of described link is provided with spacing preiection, the other end of described link can pass described gap, and described spacing preiection can be resisted against on the sidewall away from described opening of lug described in two.
Further, described spacing preiection is swivel nut, and described swivel nut is provided with internal thread, and the other end of described link is provided with the outside thread matched with described internal thread, the other end of described link and described swivel nut bolt; The sidewall away from described opening of lug described in two is equipped with restraining groove, and described swivel nut stretches in described restraining groove, and is resisted against on the cell wall of described restraining groove.
Compared to the prior art the maintenance jig of the compliant riser based on ROV operation provided by the invention, has following beneficial effect:
By arranging the banjo docked with ROV, realize ROV and keep in repair the fixing of jig, without the need to using the manipulator fixing maintenance jig of ROV, being convenient to manipulator is set in outside compliant riser by annular jig, link and the first fixing part are fixed, and the central angle corresponding to the opening of annular jig is 120 ° ± 10 °, be less than 180 °, so annular jig is set in after outside compliant riser, the clamping force of self can be utilized, be fixed on compliant riser, manipulator without the need to ROV is fixed, the manipulator of ROV can be liberated like this, be convenient to manipulator operation link, carry out in the process of keeping in repair at utilization maintenance jig like this, a ROV is only needed to finish the work, without the need to using auxiliary ROV, make maintenance operation simple, improve working efficiency,
There is flexible rubber pad by arranging on the internal face of annular jig and there is cementability and elastomeric resin layer, substantially increasing maintenance jig to the radial seal effect of compliant riser;
The first fixing part fixed by setting and link two ends and the central angle corresponding to the line of the second fixing part are 150 ° ± 10 °, under the effect of the fastening force that annular jig is applied at link, compliant riser can be wrapped up better, radial seal is carried out to compliant riser;
Be 2:1 by the axial distance between two lugs that arrange the second fixing part and lug to the ratio of the axial distance at the edge of annular jig, when using link to be fastened on compliant riser by annular jig, the stressing conditions of annular jig is good, unstressedly concentrates;
By arranging swivel nut at the link the other end, like this after on the cell wall that swivel nut is resisted against the restraining groove of the first fixing part, by rotating connector, regulate the length of link between the first fixing part and the second fixing part, annular jig is fastened on compliant riser by link.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms a part for specification, is used from and explains technological scheme of the present invention, do not form the restriction to technical solution of the present invention with the embodiment one of the application.
Fig. 1 is the perspective view of the maintenance jig according to the compliant riser based on ROV operation of the present invention;
Fig. 2 is the perspective view at another visual angle of the jig of maintenance shown in Fig. 1;
Fig. 3 is the perspective view at the another visual angle of the jig of maintenance shown in Fig. 1;
Fig. 4 is the left TV structure schematic diagram of the jig of maintenance shown in Fig. 1;
Fig. 5 is the backsight structural representation of the jig of maintenance shown in Fig. 1.
Wherein, the pass in Fig. 1 to Fig. 5 between reference character and component names is:
1 link, 10 circumferential connecting rods, 11 fastening sheets, 12 axial connecting rods, 2 rubber pads, 3 banjos, 30 jacks, 4C type jig, 5 first fixing parts, 51 restraining grooves, 6 swivel nuts, 7 second fixing parts.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
As shown in Figure 1 to Figure 3, present embodiments provide a kind of maintenance jig of compliant riser based on ROV operation, comprising: an annular jig with opening, link 1 and banjo 3.
Wherein, described in have the cross section of the annular jig of opening roughly C-shaped, namely described annular jig is C type jig 4, and the outer wall being positioned at the described C type jig 4 of described opening side has the first fixing part 5; Described link 1 is arc connector, and one end of described link 1 is fixedly connected with the outer wall of the described C type jig 4 of described opening opposite side, and the other end can match fixing with described first fixing part 5; Described banjo 3 is arranged in the outer wall of described C type jig 4, and described banjo 3 offers and the TDU of described ROV (Tools Deployment Unit, Tool put-away device) jack 30 that matches, preferably, described jack 30 is the shoulder hole that opening size is little, Inner Dimension is large, the TDU of ROV is provided with flexible inserted part, after TDU inserts jack, inserted part on it is ejected, and be stuck in the ladder place of shoulder hole, achieve the fixing of cutting graftage part and jack, namely achieve the fixing of ROV and maintenance jig.
The maintenance jig of the compliant riser based on ROV operation that the present embodiment provides, comprise the C type jig 4 that has opening, link 1 and banjo 3, link 1 and banjo 3 are all connected with C type jig 4, maintenance jig is made to connect as a whole, like this when banjo 3 and ROV TDU fixing after, ROV can be realized and keep in repair the fixing of jig, without the need to using the manipulator fixing maintenance jig of ROV, the manipulator of ROV can be liberated like this, be convenient to manipulator carry out other operations and (as: C type jig 4 is set in outside compliant riser, link 1 and the first fixing part 5 are fixed).
C type jig 4 is provided with opening, makes compliant riser can enter in C type jig 4 from opening; One end of link 1 is fixedly connected with the outer wall of the C type jig 4 of opening opposite side, the other end can match fixing with the first fixing part 5, namely before C type jig 4 is socketed in compliant riser, the other end and first fixing part 5 of link 1 are separated, namely the opening of C type jig 4 is opened by link 1, be connected to after in C type jig 4 until compliant riser, the other end of link 1 is coordinated fixing with the first fixing part 5, realize fixing of maintenance jig and compliant riser.
The maintenance jig of the compliant riser based on ROV operation provided by the invention, by arranging the banjo 3 docked with ROV, without the need to using the manipulator fixing maintenance jig of ROV, being convenient to manipulator is set in outside compliant riser by C type jig 4, link 1 and the first fixing part 5 are fixed, carry out in the process of keeping in repair at utilization maintenance jig like this, a ROV is only needed to finish the work, without the need to using auxiliary ROV, make maintenance operation simple, improve working efficiency, extend the working life of compliant riser.
Need illustrate make, ROV under water maintenance operation time, often using a kind of the unwinding and winding mechanism TDU with instrument, TDU is a kind of custom-designed 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 type jig 4 is provided with elastic sealing gasket, and preferably, described elastic sealing gasket is rubber pad 2.
After the other end of link 1 and the first fixing part 5 are fixed, make C type jig 4 and elastic sealing gasket is stressed, distortion, C type jig 4 is made firmly to be fixed on compliant riser, elastic sealing gasket can be close to the outer wall of compliant riser simultaneously, such elastic sealing gasket can wrap up the damaged part of compliant riser better, realize the radial seal to compliant riser, after preventing seawater from infiltrating, continue corrosion compliant riser.
Further, the internal face of described elastic sealing gasket is coated with adhesive layer, preferably, described adhesive layer is resin layer.
The setting of adhesive layer, is conducive to the bonding of elastic sealing gasket and compliant riser damaged part, enhances the sealing effect of elastic sealing gasket.
Namely resin layer has good cementability, has good elasticity simultaneously, has flexible rubber pad and has cementability and elastomeric resin layers, substantially increases maintenance jig to the sealing effect of compliant riser.
Further, as shown in Figure 4, the central angle alpha corresponding to described opening of described C type jig 4 is 120 ° ± 10 °.
The central angle alpha corresponding to opening of C type jig 4 is 120 ° ± 10 °, such C type jig 4 is set in after outside compliant riser, the clamping force of self can be utilized, be fixed on compliant riser, manipulator without the need to ROV is fixed, the manipulator of ROV can be liberated like this, be convenient to manipulator operation link 1.
Further, as shown in Figure 4, the outer wall of the described C type jig 4 of described opening opposite side has the second fixing part 7, one end of described link 1 is fixedly connected with described second fixing part 7, and the central angle β corresponding to line of described first fixing part 5 and described second fixing part 7 is 150 ° ± 10 °.
The central angle β corresponding to line of the first fixing part 5 and the second fixing part 7 is 150 ° ± 10 °, the central angle corresponding to line between the immovable point of i.e. link 1 two ends and C type jig 4 is 150 ° ± 10 °, this link 1 pair of C type jig 4 is utilized to apply fastening force, make C type jig 4 can wrap up compliant riser better, compliant riser is sealed, prevents seawater from continuing the damaged part of corrosion compliant riser.
Further, as shown in Figure 5, described second fixing part 7 comprises two second lugs, second lug described in two is along in the outer wall being axially fixed in described C type jig 4 of described C type jig 4, and the axial distance L described in two between second lug and described second lug to the ratio of the axial distance L1 at the edge of described C type jig 4 are: L:L1=2:1.
Under such configuration, when using link 1 to be fastened on compliant riser by C type jig 4, the stressing conditions of C type jig 4 is good, unstressed concentrated.
Further, as shown in Figure 5, described link 1 comprises axial connecting rod 12, circumferential connecting rod 10 and fastening sheet 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 is connected with one end of described circumferential connecting rod 10, the other end of described circumferential connecting rod 10 can match fixing with described first fixing part 5, described fastening sheet 11 is fixed on the middle part of described circumferential connecting rod 10, wherein fastening sheet 11 extends in the circumferential direction of compliant riser, and its axial width is greater than connecting rod 12.
The setting of fastening sheet 11, makes link 1 increase with the area of contact of compliant riser, avoids that compliant riser is stressed excessively to deform.
Further, as shown in Figure 3, described first fixing part 5 comprises two first lugs, between first lug, there is gap described in two, the other end of described circumferential connecting rod 10 is provided with spacing preiection, the other end of described circumferential connecting rod 10 can pass described gap, and described spacing preiection can be resisted against on the sidewall away from described opening of the first lug described in two.
Like this, when C type jig 4 snaps fit onto after on compliant riser, the other end of circumferential connecting rod 10 bends by the manipulator of ROV, make the spacing preiection of circumferential connecting rod 10 the other end be resisted against away from a sidewall of opening on the first lug, circumferential connecting rod 10 is through the gap of working the effect of dodging two first lugs simultaneously.
Further, as shown in Figure 3 and Figure 4, described spacing preiection is swivel nut 6, and described swivel nut 6 is provided with internal thread, the other end of described circumferential connecting rod 10 is provided with the outside thread matched with described internal thread, the other end of described circumferential connecting rod 10 and described swivel nut 6 bolt; The sidewall away from described opening of the first lug described in two is equipped with restraining groove 51, and described swivel nut 6 stretches in described restraining groove 51, and is resisted against on the cell wall of described restraining groove 51.
Further, as shown in Figure 4, the end of the other end of described circumferential connecting rod 10 is formed with T-shaped handle.
Spacing preiection is swivel nut 6, swivel nut 6 is spirally connected with the other end of circumferential connecting rod 10, like this after on the cell wall that swivel nut 6 is resisted against the restraining groove 51 of the first fixing part 5, by turning T-type handle, regulate the length of link 1 between the first fixing part 5 and the second fixing part 7, make link 1 can be fastened on compliant riser by C type jig 4; The setting of restraining groove 51 simultaneously, when can prevent compliant riser from expanding, swivel nut 6 and the first fixing part 5 depart from, and make the good fixing effect of keeping in repair jig, use reliable.
ROV coordinates with above-mentioned maintenance jig, and the detailed process of keeping in repair compliant riser is as follows:
First, before maintenance jig enters water, the swivel nut 6 of link 1 the other end is separated with the first fixing part 5, and namely the opening of C type jig 4 is in open mode;
Then, the Tool put-away device TDU carried by ROV docks with the banjo 3 on C type jig 4 and fixes, maintenance jig is made to be fixed on TDU, then, transfer the position of ROV to compliant riser breakage, by operation ROV, C type jig 4 is allowed to snap into the damaged part of compliant riser, and by ROV manipulator, fastening sheet 11 is anchored to the surface of compliant riser, swivel nut 6 is resisted against on the cell wall of restraining groove 51, and tighten the T-shaped handle of circumferential connecting rod 10 the other end, realize the radial seal of C type jig 4 pairs of compliant risers;
Finally, remove the connection of TDU and banjo 3, regain ROV, complete installment work.
Although the mode of execution disclosed by the present invention is as above, the mode of execution that described content only adopts for ease of understanding the present invention, and be not used to limit the present invention.Those of skill in the art belonging to any the present invention; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be carried out in the form implemented and details, but scope of patent protection of the present invention, still must define with appending claims and be as the criterion.
Claims (10)
1., based on a maintenance jig for the compliant riser of ROV operation, it is characterized in that, comprising:
The one annular jig with opening, the outer wall of the described annular jig of described opening side has the first fixing part;
Link, one end is fixedly connected with the outer wall of the described annular jig of described opening opposite side, and the other end can match fixing with described first fixing part; With
Banjo, is arranged in the outer wall of described annular jig, and described banjo offers the jack matched with the cutting graftage part of described ROV.
2. the maintenance jig of the compliant riser based on ROV operation according to claim 1, is characterized in that,
The internal face of described annular jig is provided with elastic sealing gasket.
3. the maintenance jig of the compliant riser based on ROV operation according to claim 2, is characterized in that,
The internal face of described elastic sealing gasket is coated with adhesive layer.
4. the maintenance jig of the compliant riser based on ROV operation according to claim 3, is characterized in that,
Described elastic sealing gasket is rubber pad; And/or
Described adhesive layer is resin layer; And/or
Described jack is the shoulder hole that opening size is little, Inner Dimension is large.
5. the maintenance jig of the compliant riser based on ROV operation according to any one of claim 1-4, is characterized in that,
The described annular jig with opening is the ring jig with opening, and described link is arc connector, and the central angle corresponding to described opening of described ring jig is 120 ° ± 10 °.
6. the maintenance jig of the compliant riser based on ROV operation according to claim 5, is characterized in that,
The outer wall of the described annular jig of described opening opposite side has the second fixing part, and one end of described link is connected with described second fixing part, and the central angle corresponding to line of described first fixing part and described second fixing part is 150 ° ± 10 °.
7. the maintenance jig of the compliant riser based on ROV operation according to any one of claim 1-4, is characterized in that,
The outer wall of the described annular jig of described opening opposite side has the second fixing part, described second fixing part comprises two lugs, lug described in two is along in the outer wall being axially fixed in described annular jig of described annular jig, and the axial distance described in two between lug and described lug are 2:1 to the ratio of the axial distance at the edge of described annular jig.
8. the maintenance jig of the compliant riser based on ROV operation according to claim 7, is characterized in that,
Described link comprises axial connecting rod, circumferential connecting rod and fastening sheet, the two ends of described axial connecting rod are fixedly connected with lug described in two respectively, the middle part of described axial connecting rod is connected with one end of described circumferential connecting rod, the other end of described circumferential connecting rod can match fixing with described first fixing part, and described fastening sheet is fixed on the middle part of described circumferential connecting rod.
9. the maintenance jig of the compliant riser based on ROV operation according to any one of claim 1-4, is characterized in that,
Described first fixing part comprises two lugs, between lug, there is gap described in two, the other end of described link is provided with spacing preiection, and the other end of described link can pass described gap, and described spacing preiection can be resisted against on the sidewall away from described opening of lug described in two.
10. the maintenance jig of the compliant riser based on ROV operation according to claim 9, is characterized in that,
Described spacing preiection is swivel nut, and described swivel nut is provided with internal thread, and the other end of described link is provided with the outside thread matched with described internal thread, the other end of described link and described swivel nut bolt;
The sidewall away from described opening of lug described in two is equipped with restraining groove, and described swivel nut stretches in described restraining groove, and is resisted against on the cell wall of described restraining groove.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN104896255A true CN104896255A (en) | 2015-09-09 |
| CN104896255B CN104896255B (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510195135.2A Active 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 | Priority date | Publication date | Assignee | Title |
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| CN106979383A (en) * | 2017-05-24 | 2017-07-25 | 中国石油大学(北京) | Submarine pipeline defect repair instrument |
| 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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| 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 |
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| 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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| US20070044858A1 (en) * | 2005-08-29 | 2007-03-01 | Cairns James L | Pipe seal assembly and method |
| CN101956388A (en) * | 2010-09-27 | 2011-01-26 | 中国海洋石油总公司 | Novel clamp device and fixing method for grouting risers of ocean platform |
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| CN106979383A (en) * | 2017-05-24 | 2017-07-25 | 中国石油大学(北京) | Submarine pipeline defect repair instrument |
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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104896255B (en) | 2017-03-08 |
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