CN108625798A - A kind of emergent on-off connector of deep water riser - Google Patents
A kind of emergent on-off connector of deep water riser Download PDFInfo
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- CN108625798A CN108625798A CN201810274936.1A CN201810274936A CN108625798A CN 108625798 A CN108625798 A CN 108625798A CN 201810274936 A CN201810274936 A CN 201810274936A CN 108625798 A CN108625798 A CN 108625798A
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- tieback
- supervisor
- auxiliary line
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 26
- 210000000078 claw Anatomy 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000004064 recycling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008141 laxative Substances 0.000 description 2
- 230000002475 laxative effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- PPTYJKAXVCCBDU-UHFFFAOYSA-N Rohypnol Chemical compound N=1CC(=O)N(C)C2=CC=C([N+]([O-])=O)C=C2C=1C1=CC=CC=C1F PPTYJKAXVCCBDU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/06—Releasing-joints, e.g. safety joints
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of emergent on-off connectors of deep water riser, specifically include on-off connector and lower on-off connector；The upper on-off connector is connect with upper drilling water-separation pipe, and the lower on-off connector is connect with lower drilling water-separation pipe；There is uncoupling mechanism between the upper on-off connector and the lower on-off connector；The uncoupling mechanism is instructed according to emergency escape or tieback, and renunciation or tieback relationship are established between the upper on-off connector and the lower on-off connector, and the upper drilling water-separation pipe and the lower drilling water-separation pipe are separated from and come or tieback.The on-off connector is easy for installation, easy to maintenance, reduces task difficulty, shortens the operating time, to realize to riser system disengaging and effective control of tieback.
Description
Technical field
The present invention relates to a kind of on-off connectors, more particularly to a kind of marine riser coastal waters applied to deep water hydrocarbon drilling applications
Face is met an urgent need on-off connector.
Background technology
Marine riser is link important and weak in entire marine drilling equipment, is offshore oil exploration and exploitation " bottle
Neck ", at sea in well system, marine riser extends to sea drilling platforms from subsea blow out preventer.It is urgent as the burst of sea of retribution domain
When situation, drilling platforms needs to recycle marine riser, withdraws hedging.In conventional marine riser recycling operation, marine riser needs one
Piece ground of root is recovered on drilling platforms, and complex procedures, the activity duration is long, because can not recycle marine riser in time, withdraw hedging
The accident of the even drilling platforms damage of water proof tube damage caused by and is countless.Especially take place frequently season in typhoon and hurricane,
The frequent recycling of riser system can greatly increase the non-drilling time so that oil gas drilling cost increases.
In order to solve the problems, such as that it is long that the recycling of conventional drilling marine riser takes, it is proposed that anti-drilling water-separation pipe concept,
It is mainly characterized by：Equipped with assembly is detached from Layer Near The Sea Surface, the Layer Near The Sea Surface that marine riser may be implemented is detached from, and need to only be recycled after disengaging close
Sea is detached from the fraction marine riser on assembly, remaining most of marine riser is in typhoon by buoyancy system in seawater
Middle stick-up, typhoon can fast implement the tieback of riser system by Layer Near The Sea Surface assembly later, substantially increase operation effect
Rate.
A kind of domestic marine riser Layer Near The Sea Surface is detached from assembly, and the accuracy requirement of operation is higher, and task difficulty is big, and structure is multiple
Miscellaneous, reliability is poor, and service work is complicated.And auxiliary line is designed using bend pipe, is had the following disadvantages：（1）There is bent portion
Divide and exists, then it can not tripping in testing tool；（2）It will produce larger local resistance in pipe bent position, the fluid in auxiliary line exists
Energy loss is had when flowing through herein, and then causes the pressure reduction of fluid, is unfavorable for the conveying of fluid；（3）Bend pipe relative to
It is easier to damage for straight tube, reduces the service life of whole device.
Invention content
The present invention is directed to the defect that marine riser Layer Near The Sea Surface in background technology is detached from assembly, provides a kind of deep water riser and answers
Anxious on-off connector, manipulation is easy and is easy to overhaul, and hydraulic control system is simple and reliable, and the flowing of fluid is not by shadow in auxiliary line
It rings.
For achieving the above object, the technical solution adopted by the present invention is：
A kind of emergent on-off connector of deep water riser, which is characterized in that including：
Upper on-off connector and lower on-off connector；
The upper on-off connector is connect with upper drilling water-separation pipe, and the lower on-off connector is connect with lower drilling water-separation pipe；
There is uncoupling mechanism between the upper on-off connector and the lower on-off connector；
The uncoupling mechanism is instructed according to emergency escape or tieback, is established between the upper on-off connector and the lower on-off connector de-
From relationship or tieback relationship, the upper drilling water-separation pipe and the lower drilling water-separation pipe are separated from and come or tieback.
Preferably, the uncoupling mechanism, including：
Hydraulic holding mechanism and uncoupling part；
The hydraulic holding mechanism is connect with one of the upper on-off connector or lower on-off connector；
The uncoupling part is connect with another in the upper on-off connector or lower on-off connector；
The hydraulic holding mechanism constitutes disengaging with the uncoupling part and tieback conversion is secondary.
Preferably, the hydraulic holding mechanism, including：
Hydraulic clamping device and hydraulic control system；
The hydraulic clamping device, often covers hydraulic clamping device, including a hydraulic cylinder, four connecting rods and four cunnings by totally three sets
Dynamic fixture block；Every connecting rod end connects a sliding fixture block, and four sliding fixture blocks are corresponding two-by-two to constitute claw, the claw and institute
It states uncoupling part and constitutes disengaging and tieback conversion pair；The Driven by Hydraulic Cylinder four connecting rods movement, make the claw be in be closed or
Open configuration；
The hydraulic control system, including：
Hydraulic control lines；
The chamber of three hydraulic cylinders is together in series by the hydraulic control lines, for ensureing that three sets of hydraulic clamping devices synchronize work
Make.
Preferably, there is projection cube structure on the inside of the sliding fixture block.
Preferably, the uncoupling part, ontology uses bolt arrangement, and is equipped with circular groove structure on the body；
The circular groove structure, for coordinating with the projection cube structure of the claw.
Preferably, the auxiliary line has several, is divided into auxiliary line and lower auxiliary line；
The upper auxiliary line is connect with the upper on-off connector；
The lower auxiliary line is connect with the lower on-off connector；
Be separated from and come or when tieback gets up between the upper on-off connector and the lower on-off connector, the upper auxiliary line and it is described under
Auxiliary line is carried out at the same time disengaging or tieback.
Preferably, the auxiliary line is straight pipe-line.
Preferably, the upper on-off connector, matrix are upper supervisor；
The upper supervisor, upper end connect upper flange plate；
The upper flange plate, for upper on-off connector to be fixedly connected with top drilling water-separation pipe；
It is fixedly and coaxially connected annulus platform on the upper supervisor；
Annulus platform in also coaxial socket on the upper supervisor；
The upper surface of the middle annulus platform is equally spaced groove, and the groove is for installing hydraulic clamping device；
It is bolted between the upper annulus platform and middle annulus platform；
It is evenly distributed several upper auxiliary lines on the outside of the upper supervisor.
Preferably, the lower on-off connector, matrix are lower supervisor；
The lower supervisor, lower end connect lower flange；
The lower flange, for lower on-off connector to be fixedly connected with lower section drilling water-separation pipe；
Lower annulus platform is fixedly and coaxially connected on the lower supervisor；
The circumferentially uncoupling part on the lower annulus platform；
It is evenly distributed several lower auxiliary lines on the outside of the lower supervisor.
Preferably, there is keyway and positioning key, the keyway and positioning between the upper on-off connector and the lower on-off connector
Key coordinates, for realizing the centering of upper on-off connector and lower on-off connector.
Beneficial effects of the present invention：
1, the present invention is small to the space of platform and burden requirement, can be attached it on marine riser on platform, then with water proof
Pipe is transferred by turntable, is equivalent to one marine riser pipe nipple of installation, easy for installation, easy to maintenance, when considerably reducing operation
Between and difficulty；
2, auxiliary tube is straight tube in the present invention, and major advantage is as follows：（1）It can be quickly right with the auxiliary line in septum primum water pipe system
It connects；（2）The runner that straight tube design maintains entire auxiliary plumbing system is constant, can be with tripping in testing tool；（3）It will not increase auxiliary
The local resistance of pipeline is helped, the fluid in auxiliary line can be normal through the device；
3, fluid pressure drive device of the invention is mainly made of three hydraulic cylinders, and hydraulic control lines are synchronized using hydraulic cylinder series connection
Loop structure can control effectively to three hydraulic cylinders, and then realize to riser system disengaging and the control of tieback, device
Relatively easy reliable, the probability of error is relatively low, the progress for service work of being also more convenient for.
Description of the drawings
By the description below with reference to attached drawing to the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage is apparent, in the accompanying drawings：
Fig. 1 is the structural schematic diagram of the emergent on-off connector of deep water riser in the embodiment of the present invention.
Fig. 2 is upper on-off connector schematic diagram.
Fig. 3 is top partial view diagram on upper on-off connector.
Fig. 4 is upper on-off connector lower part vertical view.
Fig. 5 is lower on-off connector schematic diagram.
Fig. 6 is hydraulic clamping device stereoscopic schematic diagram.
Fig. 7 is sliding fixture block vertical view.
Fig. 8 is the A-A sectional views of Fig. 7.
Fig. 9 is the stereoscopic schematic diagram of connecting rod.
Figure 10 is the side view of uncoupling part.
Specific implementation mode
Below based on embodiment, present invention is described, but it is worth noting that, the present invention is not limited to these realities
Apply example.Below to the present invention datail description in, it is detailed to describe some specific detail sections.However, for not detailed
The part described to the greatest extent, those skilled in the art can also understand the present invention completely.
In addition, it should be understood by one skilled in the art that the attached drawing provided simply to illustrate that the purpose of the present invention,
Feature and advantage, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims
Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to "
Meaning.
The on-off connector as shown in Figure 1, a kind of deep water riser is met an urgent need, including 2, three sets of upper on-off connector 1, lower on-off connector hydraulic pressure
Clamping device 5, hydraulic control lines 6 and 6 uncoupling parts 7.
Shown in Fig. 2 combinations Fig. 3, the upper on-off connector 1 is divide into upper part and lower part, and the matrix on upper on-off connector top 3 is upper
The top of supervisor, upper supervisor are provided with upper flange plate 11, and six the first bolts hole 16 are arranged on upper flange plate 11, pass through the first spiral shell
Upper on-off connector 1 can be connect by keyhole 16 with top drilling water-separation pipe fixing bolt；Ring-shaped platform in the upper coaxial welding of upper supervisor,
Upper ring-shaped platform upper surface is radially divided every a pair of second bolt hole 17 of 120 ° of settings, the two second bolts hole 17 same
Cloth.
Shown in Fig. 2 combinations Fig. 4：Upper on-off connector lower part 4 is middle ring-shaped platform, and upper on-off connector lower part 4 is every 120 ° of settings
There is a groove 18, there are two fixture block slideway 20 and two pairs of tapped blind holes 21 for the interior setting of groove 18；Upper on-off connector lower part 4 is every 120 °
It is provided with a pair of of tapped blind hole 23, two tapped blind holes 23 are radially distributed same；Bolt 13 passes through the second bolt hole 17 and spiral shell
Line blind hole 23 connects together on upper on-off connector top 3 with upper on-off connector lower part 4；Upper on-off connector lower part 4 is provided with one every 60 °
Axially extending bore 19, and each axially extending bore 19 is located at the center of each fixture block slideway 20 of each groove 18；It is axial logical
Hole 19 is 30 ° with the interval angles of adjacent thread blind hole 23 circumferentially；It is provided with two circle O in upper supervisor's male end 8 of upper on-off connector 1
Type sealing ring 15 and positioning key 9.
60 ° are circumferentially provided with upper auxiliary line 12 on the outside of the upper supervisor of upper on-off connector 1, upper auxiliary line 12 is public
Two circle O-ring seals 14 are provided on end, upper auxiliary line 12 is with the interval angles of adjacent second bolt hole 17 circumferentially
30°。
In conjunction with shown in Fig. 5, the matrix of the lower on-off connector 2 is lower supervisor, and lower flange 27, laxative remedy is arranged in lower supervisor lower end
Six third bolts hole 28 are set on blue disk 27, by bolt and third bolt hole 28 can by lower on-off connector 2 and lower drilling well every
Water pipe is fixedly connected；Ring-shaped platform under the upper coaxial welding of lower supervisor, there are one axial bolts at interval of 60 ° of settings for lower ring-shaped platform
Hole, uncoupling part 7 coordinate with axial screw keyhole to be fixed on lower on-off connector 2；Uncoupling part 7 may pass through in 1 groove 18 of on-off connector
Axially extending bore 19；60 ° are circumferentially provided with lower auxiliary line 26 on the outside of the lower supervisor of lower on-off connector 2；Lower on-off connector 2
Lower supervisor's female end 24 on have a keyway 25, upper on-off connector 1 is realized and lower on-off connector by the cooperation of positioning key 9 and keyway 25
2 centering.
As shown in Fig. 1, Fig. 4, Fig. 6, Fig. 7, Fig. 8, Fig. 9, the hydraulic clamping device 5, totally three sets, including 12 connecting rods
30, three hydraulic cylinders, 31,12 sliding fixture blocks 29；30 middle part of the connecting rod has the first pin hole, the first pin 32 to pass through first
Hydraulic clamping device 5 is fixed in the groove 18 of upper on-off connector lower part 4 by the tapped blind hole 21 in pin hole and groove 18；Even
30 one end of bar is provided with the second pin hole 38, and the other end is provided with the third pin hole 37 that shape is round rectangle, fillet square
The radius of corner of shape is the half of round rectangle width.
Hydraulic clamping device 5 is driven by hydraulic cylinder 31, and hydraulic cylinder 31 is connect with connecting rod 30 by the second pin 34, the second pin
Nail 34 can the sliding in the third pin hole 37 that the shape on connecting rod 30 is round rectangle.
The 4th pin hole 35 that shape is round rectangle, the fillet half of round rectangle are provided on the sliding fixture block 29
Diameter is the half of round rectangle width；Sliding fixture block 29 is connect with connecting rod 30 by third pin 33, and third pin 33 can be in shape
Shape is sliding in the pin hole 35 of round rectangle；The inside of sliding fixture block 29 is provided with a convex block 36, convex block 36 on uncoupling part 7
Groove 39 cooperate, realize up and down on-off connector connection and separation.
As shown in Figure 1 and Figure 2, the hydraulic control system is series-connection synchronous circuit of hydraulic cylinder structure；It is two that hydraulic cylinder 31, which is divided to,
A chamber, each chamber are separately connected a hydraulic control lines 6, fixture block slideway 20 of the driving sliding fixture block 29 in groove 18
Movement；The chamber of three hydraulic cylinders 31 is together in series by hydraulic control lines 6, ensure that the synchronization of three sets of hydraulic clamping devices 5
Work.
When the present invention works, including following two situations：
When the present invention is in disengaged position：
The axial load on on-off connector is reduced first, the convex block 36 on anti-sliding stop fixture block 29 and the annular groove on uncoupling part 7
Frictional force between 39 is excessive to be caused to be detached from and fails, and the hydraulic cylinder 31 for then starting hydraulic clamping device 5 is driven by connecting rod 30
Sliding fixture block 29 is toward shifting outside both sides, when sliding the convex block 36 on fixture block 29 and the annular groove 39 on uncoupling part 7 completely disengages,
On-off connector 1 can be lifted, complete disengaging of the emergent on-off connector in Layer Near The Sea Surface.
When the present invention is in tieback state：
The position of upper on-off connector 1 is adjusted by underwater robot so that under the first partial insertion of upper supervisor's male end 8 of upper on-off connector 1
In female end 24 on on-off connector 2, lower on-off connector 2 is then made circumferentially to make certain adjustment, the positioning key in upper supervisor's male end 8
9 with the keyway 25 in female end 24 when aligning, in the groove 18 of uncoupling part 7 and upper on-off connector lower part 4 axially extending bore 19 also will contraposition,
Then the supervisor male end 8 of upper on-off connector 1 is further inserted into the female end 24 on lower on-off connector 2, when the lower face of upper on-off connector 1 and
When the upper surface fitting of lower on-off connector 2, start the hydraulic cylinder 31 of hydraulic clamping device 5, sliding fixture block 29 is driven by connecting rod 30
It is closed from both sides toward intermediate interior shifting when sliding the convex block 36 on fixture block 29 and the annular groove 39 on uncoupling part 7 is fully mated
Hydraulic system simultaneously keeps pressure constant, to which the emergent on-off connector of completion is in the tieback of Layer Near The Sea Surface.
Specifically, in conjunction with Fig. 1-Figure 10, the operation principle carried out to the present invention is briefly described with connection procedure：
A kind of emergent on-off connector of deep water riser, including：Upper on-off connector 1 and lower on-off connector 2；Upper on-off connector 1 and upper drilling riser
Pipe connects, and lower on-off connector 2 is connect with lower drilling water-separation pipe；There is uncoupling mechanism between upper on-off connector 1 and lower on-off connector 2；Uncoupling
Mechanism is instructed according to emergency escape or tieback, and renunciation or tieback relationship are established between upper on-off connector 1 and lower on-off connector 2,
Upper drilling water-separation pipe and lower drilling water-separation pipe are separated to come or tieback.Specifically, controller is sent to uncoupling mechanism
Emergency escape or tieback instruction, the emergency escape of uncoupling mechanism or tieback instruction, uncoupling mechanism are instructed according to emergency escape or tieback,
Renunciation or tieback relationship are established between upper on-off connector 1 and lower on-off connector 2, by upper drilling water-separation pipe and lower drilling water-separation pipe
It is separated to come or tieback.Controller in the present invention can select microcontroller, PLC or other control platforms；Preferably,
Controller is instructed with uncoupling mechanism using communication transmission emergency escape or tieback, and controller has transmitting/reception list
Member, uncoupling mechanism have reception/transmitter unit, when uncoupling mechanism completes upper on-off connector 1 and lower uncoupling according to emergency escape instruction
After disengaging between device 2, to controller feed back complete separating signal, with should uncoupling mechanism according to emergent tieback instruct completion on
After tieback between on-off connector 1 and lower on-off connector 2, is fed back to controller and complete tieback signal.
Fig. 1-Figure 10, uncoupling mechanism, including：Hydraulic holding mechanism and uncoupling part 7；Hydraulic holding mechanism, with upper on-off connector 1
Or one of lower on-off connector 2 connection；Uncoupling part 7 is connect with another in upper on-off connector 1 or lower on-off connector 2；Hydraulic clamping machine
Structure constitutes disengaging with uncoupling part 7 and tieback conversion is secondary.
Fig. 1-Figure 10, hydraulic holding mechanism, including：Hydraulic clamping device 5 and hydraulic control system；Hydraulic clamping device 5,
Totally three sets, often cover hydraulic clamping device 5, including a hydraulic cylinder, four connecting rods and four sliding fixture blocks；Every connecting rod end connects
A sliding fixture block is connect, four sliding fixture blocks are corresponding two-by-two to constitute claw, and claw is constituted to be detached from uncoupling part 7 and be converted with tieback
It is secondary；Four connecting rod movements of Driven by Hydraulic Cylinder, make claw be in closure and open configuration；Hydraulic control system, including hydraulic control
The chamber of three hydraulic cylinders is together in series by pipeline 6, hydraulic control lines 6, for ensureing that three sets of hydraulic clamping devices 5 synchronize work
Make.
Fig. 1-Figure 10, sliding fixture block inside have projection cube structure.Uncoupling part 7, ontology use bolt arrangement, and in ontology
It is equipped with circular groove structure 39；Circular groove structure 39, for coordinating with the projection cube structure of claw.
Fig. 1-Figure 10, deep water riser are met an urgent need on-off connector, further include：Auxiliary line；Auxiliary line has several, point
For upper auxiliary line 12 and lower auxiliary line 26；Upper auxiliary line 12 is connect with upper on-off connector 1；Lower auxiliary line 26 takes off with lower
Connect the connection of device 2；It is separated from and comes or when tieback gets up between upper on-off connector 1 and lower on-off connector 2, upper auxiliary line 12 and lower auxiliary tube
Line 26 is carried out at the same time disengaging or tieback.
Fig. 1-Figure 10, auxiliary line are straight pipe-line.
Fig. 1-Figure 10, upper on-off connector 1, matrix are upper supervisor；Upper supervisor, upper end connect upper flange plate；Upper flange plate is used
In upper on-off connector 1 is fixedly connected with top drilling water-separation pipe；Annulus platform is fixedly and coaxially connected on upper supervisor；On upper supervisor
Annulus platform in also coaxial socket；The upper surface of middle annulus platform is equally spaced groove 18, and groove 18 is for installing hydraulic clamping
Device 5；It is bolted between upper annulus platform and middle annulus platform；It is evenly distributed several upper auxiliary lines on the outside of upper supervisor
12。
In Fig. 1-Figure 10, lower on-off connector 2, matrix is lower supervisor；Lower supervisor, lower end connect lower flange；Laxative remedy
Blue disk, for lower on-off connector 2 to be fixedly connected with lower section drilling water-separation pipe；Lower annulus platform is fixedly and coaxially connected on lower supervisor；
Circumferentially uncoupling part 7 on lower annulus platform；It is evenly distributed several lower auxiliary lines 26 on the outside of lower supervisor.
In Fig. 1-Figure 10, there is keyway 25 and positioning key 9 between upper on-off connector 1 and lower on-off connector 2；Keyway 25 and positioning
The centering of upper on-off connector 1 and lower on-off connector 2 is realized in the cooperation of key 9.
Embodiment described above is only to express embodiments of the present invention, the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that those skilled in the art,
Under the premise of not departing from present inventive concept, several deformations, same replacement can also be made, improved etc., these belong to the present invention
Protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- The on-off connector 1. a kind of deep water riser is met an urgent need, which is characterized in that including：Upper on-off connector and lower on-off connector；The upper on-off connector is connect with upper drilling water-separation pipe, and the lower on-off connector is connect with lower drilling water-separation pipe；There is uncoupling mechanism between the upper on-off connector and the lower on-off connector；The uncoupling mechanism is instructed according to emergency escape or tieback, is established between the upper on-off connector and the lower on-off connector de- From relationship or tieback relationship, the upper drilling water-separation pipe and the lower drilling water-separation pipe are separated from and come or tieback.
- The on-off connector 2. deep water riser according to claim 1 is met an urgent need, which is characterized in that the uncoupling mechanism, including：Hydraulic holding mechanism and uncoupling part；The hydraulic holding mechanism is connect with one of the upper on-off connector or lower on-off connector；The uncoupling part is connect with another in the upper on-off connector or lower on-off connector；The hydraulic holding mechanism constitutes disengaging with the uncoupling part and tieback conversion is secondary.
- The on-off connector 3. deep water riser according to claim 2 is met an urgent need, which is characterized in that the hydraulic holding mechanism, packet It includes：Hydraulic clamping device and hydraulic control system；The hydraulic clamping device, often covers hydraulic clamping device, including a hydraulic cylinder, four connecting rods and four cunnings by totally three sets Dynamic fixture block；Every connecting rod end connects a sliding fixture block, and four sliding fixture blocks are corresponding two-by-two to constitute claw, the claw and institute It states uncoupling part and constitutes disengaging and tieback conversion pair；The Driven by Hydraulic Cylinder four connecting rods movement, make the claw be in be closed or Open configuration；The hydraulic control system, including：Hydraulic control lines；The chamber of three hydraulic cylinders is together in series by the hydraulic control lines, for ensureing that three sets of hydraulic clamping devices synchronize work Make.
- The on-off connector 4. deep water riser according to claim 3 is met an urgent need, it is characterised in that：There is projection cube structure on the inside of the sliding fixture block.
- The on-off connector 5. deep water riser according to claim 4 is met an urgent need, it is characterised in that：The uncoupling part, ontology uses bolt arrangement, and is equipped with circular groove structure on the body；The circular groove structure, for coordinating with the projection cube structure of the claw.
- 6. according to the emergent on-off connector of any deep water riser in claim 1-5, which is characterized in that further include：Auxiliary line；The auxiliary line has several, is divided into auxiliary line and lower auxiliary line；The upper auxiliary line is connect with the upper on-off connector；The lower auxiliary line is connect with the lower on-off connector；Be separated from and come or when tieback gets up between the upper on-off connector and the lower on-off connector, the upper auxiliary line and it is described under Auxiliary line is carried out at the same time disengaging or tieback.
- The on-off connector 7. deep water riser according to claim 6 is met an urgent need, it is characterised in that：The auxiliary line is straight pipe-line.
- The on-off connector 8. deep water riser according to claim 6 is met an urgent need, it is characterised in that：The upper on-off connector, matrix are upper supervisor；The upper supervisor, upper end connect upper flange plate；The upper flange plate, for upper on-off connector to be fixedly connected with top drilling water-separation pipe；It is fixedly and coaxially connected annulus platform on the upper supervisor；Annulus platform in also coaxial socket on the upper supervisor；The upper surface of the middle annulus platform is equally spaced groove, and the groove is for installing hydraulic clamping device；It is bolted between the upper annulus platform and middle annulus platform；It is evenly distributed several upper auxiliary lines on the outside of the upper supervisor.
- The on-off connector 9. deep water riser according to claim 6 is met an urgent need, it is characterised in that：The lower on-off connector, matrix are lower supervisor；The lower supervisor, lower end connect lower flange；The lower flange, for lower on-off connector to be fixedly connected with lower section drilling water-separation pipe；Lower annulus platform is fixedly and coaxially connected on the lower supervisor；The circumferentially uncoupling part on the lower annulus platform；It is evenly distributed several lower auxiliary lines on the outside of the lower supervisor.
- The on-off connector 10. deep water riser according to claim 1 is met an urgent need, it is characterised in that：There is keyway and positioning key between the upper on-off connector and the lower on-off connector；The keyway and positioning key cooperation, for realizing the centering of upper on-off connector and lower on-off connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274936.1A CN108625798B (en) | 2018-03-30 | 2018-03-30 | A kind of deep water riser emergency on-off connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274936.1A CN108625798B (en) | 2018-03-30 | 2018-03-30 | A kind of deep water riser emergency on-off connector |
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| CN108625798A true CN108625798A (en) | 2018-10-09 |
| CN108625798B CN108625798B (en) | 2019-09-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561289A (en) * | 2020-05-26 | 2020-08-21 | 中海石油(中国)有限公司 | Underwater wellhead emergency releasing well sealing device and method for deepwater drilling |
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| US4431215A (en) * | 1981-04-20 | 1984-02-14 | Exxon Production Research Co. | Riser connector |
| CN102287153A (en) * | 2010-04-22 | 2011-12-21 | 桑德克斯有线有限公司 | Downhole releasable connector |
| CN103122753A (en) * | 2013-01-04 | 2013-05-29 | 中国石油大学(华东) | Near-sea separation and tie-back device for typhoon-resisting drilling risers |
| US20130299178A1 (en) * | 2012-05-14 | 2013-11-14 | Blake T. DeBerry | Systems and methods for riser coupling |
| CN105863521A (en) * | 2016-03-28 | 2016-08-17 | 中国石油大学(华东) | Drilling marine riser safety joint |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431215A (en) * | 1981-04-20 | 1984-02-14 | Exxon Production Research Co. | Riser connector |
| CN102287153A (en) * | 2010-04-22 | 2011-12-21 | 桑德克斯有线有限公司 | Downhole releasable connector |
| US20130299178A1 (en) * | 2012-05-14 | 2013-11-14 | Blake T. DeBerry | Systems and methods for riser coupling |
| CN103122753A (en) * | 2013-01-04 | 2013-05-29 | 中国石油大学(华东) | Near-sea separation and tie-back device for typhoon-resisting drilling risers |
| CN105863521A (en) * | 2016-03-28 | 2016-08-17 | 中国石油大学(华东) | Drilling marine riser safety joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561289A (en) * | 2020-05-26 | 2020-08-21 | 中海石油(中国)有限公司 | Underwater wellhead emergency releasing well sealing device and method for deepwater drilling |
| CN111561289B (en) * | 2020-05-26 | 2022-04-08 | 中海石油(中国)有限公司 | Underwater wellhead emergency releasing well sealing device and method for deepwater drilling |
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| Publication number | Publication date |
|---|---|
| CN108625798B (en) | 2019-09-10 |
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