CN105781474B - Prevent the device and application method of marine riser extensional vibration in the case where solving mold-relieving type - Google Patents
Prevent the device and application method of marine riser extensional vibration in the case where solving mold-relieving type Download PDFInfo
- Publication number
- CN105781474B CN105781474B CN201610342849.6A CN201610342849A CN105781474B CN 105781474 B CN105781474 B CN 105781474B CN 201610342849 A CN201610342849 A CN 201610342849A CN 105781474 B CN105781474 B CN 105781474B
- Authority
- CN
- China
- Prior art keywords
- standpipe
- hydraulic
- preventer
- holding portion
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000005553 drilling Methods 0.000 claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010720 hydraulic oil Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
- E21B33/064—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers specially adapted for underwater well heads
-
- 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
- E21B17/01—Risers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to the devices for preventing marine riser extensional vibration in the case where solving mold-relieving type, including drilling platforms, standpipe, instrumentation tubes and preventer, the preventer includes pedestal, hydraulic cylinder and enclasped plate, the lower end of the standpipe is holding portion, base sheath is loaded on the downside in holding portion, at least three evenly spaced hydraulic cylinders are installed on the same circumference on pedestal, enclasped plate are connected separately on the output end of each hydraulic cylinder, the working surface of enclasped plate is the arc surface consistent with holding portion radian.The advantage of the invention is that：In case of emergency, standpipe needs to be detached from preventer and instrumentation tubes, hydraulic coupling is gradually reduced, when reaching critical condition, standpipe starts to slide relative to preventer, and hydraulic coupling continues to reduce, until standpipe is detached from preventer and instrumentation tubes, the extensional vibration that can be effectively prevent standpipe under other outer force effects and generate, so as to reduce drilling platforms and standpipe by the risk destroyed.
Description
Technical field
The present invention relates to marine petroleum exploitation technical fields, especially prevent marine riser extensional vibration in the case where solving mold-relieving type
Device and application method.
Background technology
Ocean wave flowing water dynamic environment complicated and changeable is inevitably born in deep water hydrocarbon exploitation, is exposed in deep water
Marine riser has larger slenderness ratio, and as the critical passage of connection well head and upper ocean platform, that is on active service is reliable
Property has a very important significance the safe operation of marine oil and gas drilling.
Since the mining environment of offshore oil is more severe, it will usually encounter storm so that utilizing ocean current flowing velocity increases
Soon, tsunami may be caused when serious, and seabed is also that earthquake takes place frequently area mostly, the drilling platforms being in recovery process
It is usually promptly shifted because of these baneful influences so that the destruction that drilling platforms is subject to reduces to minimum.However it is in exploitation
It is connect with standpipe below the drilling platforms of process, and standpipe is fixedly connected with the preventer in seabed, when there is urgent transfer,
Preventer is rapidly separated with standpipe, be easy to cause extensional vibration, and greater impact is generated to drilling platforms.
Invention content
It is an object of the invention to overcome the prior art, providing one kind prevents marine riser from being indulged in the case where solving mold-relieving type
To the device and application method of vibration.
The purpose of the present invention is achieved through the following technical solutions：Prevent marine riser extensional vibration in the case where solving mold-relieving type
Device, including drilling platforms, standpipe, instrumentation tubes and preventer, drilling platforms are located on sea level, and the upper end of standpipe and drilling well are flat
Platform connects, and lower end is connect with instrumentation tubes, and preventer is set to the junction of standpipe instrumentation tubes, and the preventer includes pedestal, liquid
Cylinder pressure and enclasped plate, the lower end of the standpipe are holding portion, and base sheath is loaded on the downside in holding portion, on the same circumference on pedestal
At least three evenly spaced hydraulic cylinders are installed, enclasped plate is connected separately on the output end of each hydraulic cylinder, enclasped plate
Working surface is the arc surface consistent with holding portion radian.
Preferably, the outer wall in the holding portion is equipped with rough surface, and the working surface of rough surface and enclasped plate connects
Touch cooperation.
Preferably, wear plate is additionally provided between the enclasped plate and holding portion, wear plate is fixed on enclasped plate
Madial wall on.
Preferably, the hydraulic cylinder includes cylinder body, piston and output shaft, and cylinder body is fixed on the base, and piston is slided
It is dynamic to be fitted in cylinder body, and the inner cavity of cylinder body is divided into the first hydraulic cavities and the second hydraulic cavities, the is also equipped on cylinder body
One hydraulic oil connector and the second hydraulic oil connector, the first hydraulic oil connector and the first hydraulic chamber into communication, the second hydraulic joint and
Two hydraulic chamber into communication, output shaft is located at the second hydraulic cavities side, and one end of output shaft and the center of piston connect, another
End is stretched out from cylinder body, and is connect with enclasped plate.
Preferably, it is additionally provided with sealing ring between the piston and the inner wall of cylinder body.
Using the method for preventing marine riser device of extensional vibration in the case where solving mold-relieving type, include the following steps：
When S1, normal exploitation, the multiple hydraulic cylinders being arranged around standpipe respectively drive enclasped plate, resistance on the inside of enclasped plate
Grinding is realized with asperity contact and is held tightly；
S2, when needing urgent separation standpipe and instrumentation tubes, gradual release in the first hydraulic cavities, in the second hydraulic cavities gradually
Supercharging, enclasped plate are gradually reduced the active force in holding portion, and the frictional force between wear plate and rough surface reaches critical friction power
When, standpipe starts to slide with preventer, and active force continues to reduce, until standpipe is detached from preventer.
The present invention has the following advantages：
1, preventer of the invention makes the holding portion of enclasped plate and standpipe hold tightly, when hydraulic coupling is enough by hydraulic action
It is big, it can be achieved that standpipe fixation, when in case of emergency, for example earthquake, tsunami etc., standpipe need and preventer and instrumentation tubes
It being detached from, hydraulic coupling is gradually reduced, and when reaching critical condition, standpipe starts to slide relative to preventer, and hydraulic coupling continues to reduce,
Until standpipe is detached from preventer and instrumentation tubes, it can effectively prevent standpipe under other outer force effects and the extensional vibration of generation,
So as to reduce drilling platforms and standpipe by the risk destroyed.
2, rough surface in the holding portion of standpipe is set, the friction coefficient in holding portion is increased, it can be in relatively low holding force effect
Under fixation between preventer and standpipe can be realized, the size of preventer can be effectively reduced and reduce the cost of preventer.
3, wear plate is set on the madial wall of enclasped plate so that rough surface is contacted with wear plate, on the one hand so that holding tightly
It acts on relatively reliable, on the other hand can also effectively extend the service life of enclasped plate.
4, it is additionally provided with sealing ring between piston and the inner wall of cylinder body, improves the sealing performance between piston and cylinder body, prevents
Only the first hydraulic cavities and the second hydraulic cavities string oil, cause enclasped plate to fail the active force of standpipe.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of preventer and standpipe cooperation；
Fig. 3 is the structural schematic diagram in the holding portion of standpipe lower part；
Fig. 4 is the structural schematic diagram of enclasped plate；
Fig. 5 is the internal structure schematic diagram of hydraulic cylinder；
In figure：1- drilling platforms, 2- standpipes, 3- instrumentation tubes, 4- preventers, 5- pedestals, 6- hydraulic cylinders, 7- enclasped plates, 8-
Holding portion, 9- rough surfaces, 10- wear plates, 11- cylinder bodies, 12- pistons, 13- output shafts, 14- the first hydraulic oil connectors, 15- second
Hydraulic oil connector, 16- sealing rings.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to following institute
It states.
As depicted in figs. 1 and 2, the device of marine riser extensional vibration in the case where solving mold-relieving type is prevented, including drilling platforms 1,
Standpipe 2, instrumentation tubes 3 and preventer 4, drilling platforms 1 are located on sea level, and the upper end of standpipe 2 is connect with drilling platforms 1, lower end
It is connect with instrumentation tubes 3, preventer 4 is set to the junction of 2 instrumentation tubes 3 of standpipe, and the preventer 4 includes pedestal 5, hydraulic cylinder 6
Lower end with enclasped plate 7, the standpipe 2 is holding portion 8, and pedestal 5 is set in the downside in holding portion 8, the same circumference on pedestal 5
On at least three evenly spaced hydraulic cylinders 6 are installed, enclasped plate 7 is connected separately on the output end of each hydraulic cylinder 6, hold tightly
The working surface of piece 7 is the arc surface consistent with 8 radian of holding portion.
Preferably, as shown in figure 3, the outer wall in the holding portion 8 is equipped with rough surface 9, rough surface 9 and enclasped plate
7 working surface is engaged, and increases the roughness in holding portion 8, can reduce holding active force of the preventer 4 to standpipe 2.
Preferably, wear-resisting as shown in figure 4, being additionally provided with wear plate 10 between the enclasped plate 7 and holding portion 8
Piece 10 is fixed on the madial wall of enclasped plate 7, improves the wear-resisting property of enclasped plate 7, extends the service life of enclasped plate 7.
Preferably, as shown in figure 5, the hydraulic cylinder 6 includes cylinder body 11, piston 12 and output shaft 13, cylinder body 11
It is fixed on pedestal 5, piston 12 is slidably installed in cylinder body 11, and the inner cavity of cylinder body 11 is divided into the first hydraulic cavities and
Two hydraulic cavities are also equipped with the first hydraulic oil connector 14 and the second hydraulic oil connector 15, the first hydraulic oil connector 14 on cylinder body 11
With the first hydraulic chamber into communication, the second hydraulic joint 15 and the second hydraulic chamber into communication, output shaft 13 are located at the second hydraulic cavities side, and
One end of output shaft 13 is connect with the center of piston 12, and the other end is stretched out from cylinder body 11, and is connect with enclasped plate 7.
Preferably, as shown in figure 5, being additionally provided with sealing ring 16 between the piston 12 and the inner wall of cylinder body 11,
The sealing performance between piston 12 and cylinder body 11 is improved, the first hydraulic cavities and the second hydraulic cavities string oil is prevented, causes enclasped plate 7 right
The active force of standpipe 2 fails.
Using the method for preventing marine riser device of extensional vibration in the case where solving mold-relieving type, include the following steps：
When S1, normal exploitation, the multiple hydraulic cylinders 6 being arranged around standpipe 2 respectively drive enclasped plate 7,7 inside of enclasped plate
Wear plate 10 contacted with rough surface 9 realization hold tightly；
S2, when needing urgent separation standpipe 2 and instrumentation tubes 3, gradual release in the first hydraulic cavities, in the second hydraulic cavities by
Cumulative pressure, enclasped plate 7 are gradually reduced the active force in holding portion 8, and the frictional force between wear plate 10 and rough surface 9 reaches critical
When frictional force, standpipe 2 starts to slide with preventer 4, and active force continues to reduce, until standpipe 2 is detached from preventer 4.
Claims (6)
1. preventing the device of marine riser extensional vibration in the case where solving mold-relieving type, including drilling platforms（1）, standpipe（2）, instrumentation tubes
（3）And preventer（4）, drilling platforms（1）On sea level, standpipe（2）Upper end and drilling platforms（1）Connection, lower end with
Instrumentation tubes（3）Connection, preventer（4）It is set to standpipe（2）And instrumentation tubes（3）Junction, it is characterised in that：The preventer
（4）Including pedestal（5）, hydraulic cylinder（6）And enclasped plate（7）, the standpipe（2）Lower end be holding portion（8）, pedestal（5）Suit
In holding portion（8）Downside, pedestal（5）On same circumference at least three evenly spaced hydraulic cylinders are installed（6）, each
Hydraulic cylinder（6）Output end on be connected separately with enclasped plate（7）, enclasped plate（7）Working surface be and holding portion（8）Radian one
The arc surface of cause.
2. the device according to claim 1 for preventing marine riser extensional vibration in the case where solving mold-relieving type, it is characterised in that：Institute
The holding portion stated（8）Outer wall be equipped with rough surface（9）, rough surface（9）With enclasped plate（7）Working surface be engaged.
3. the device according to claim 2 for preventing marine riser extensional vibration in the case where solving mold-relieving type, it is characterised in that：Institute
The enclasped plate stated（7）With holding portion（8）Between be additionally provided with wear plate（10）, wear plate（10）It is fixed on enclasped plate（7）It is interior
On side wall.
4. the device according to claim 1 for preventing marine riser extensional vibration in the case where solving mold-relieving type, it is characterised in that：Institute
The hydraulic cylinder stated（6）Including cylinder body（11）, piston（12）And output shaft（13）, cylinder body（11）It is fixed on pedestal（5）On, piston
（12）It is slidably installed in cylinder body（11）It is interior, and by cylinder body（11）Inner cavity be divided into the first hydraulic cavities and the second hydraulic cavities, cylinder
Body（11）On be also equipped with the first hydraulic oil connector（14）With the second hydraulic oil connector（15）, the first hydraulic oil connector（14）With
One hydraulic chamber into communication, the second hydraulic joint（15）With the second hydraulic chamber into communication, output shaft（13）Positioned at the second hydraulic cavities side, and
Output shaft（13）One end and piston（12）Center connection, the other end is from cylinder body（11）It stretches out, and and enclasped plate（7）Even
It connects.
5. the device according to claim 4 for preventing marine riser extensional vibration in the case where solving mold-relieving type, it is characterised in that：Institute
The piston stated（12）With cylinder body（11）Inner wall between be additionally provided with sealing ring（16）.
6. using the device for preventing marine riser extensional vibration in the case where solving mold-relieving type as claimed in any one of claims 1 to 5, wherein
Method, it is characterised in that：Include the following steps：
When S1, normal exploitation, it is arranged in standpipe（2）At least three hydraulic cylinders of surrounding（6）Respectively drive enclasped plate（7）, hold tightly
Piece（7）The wear plate of inside（10）With rough surface（9）Contact, which is realized, holds tightly；
S2, standpipe is detached when needs are urgent（2）And instrumentation tubes（3）When, gradual release in the first hydraulic cavities, in the second hydraulic cavities by
Cumulative pressure, enclasped plate（7）To holding portion（8）Active force be gradually reduced, wear plate（10）With rough surface（9）Between frictional force
When reaching critical friction power, standpipe（2）With preventer（4）Start to slide, active force continues to reduce, until standpipe（2）With blowout prevention
Device（4）It is detached from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342849.6A CN105781474B (en) | 2016-05-23 | 2016-05-23 | Prevent the device and application method of marine riser extensional vibration in the case where solving mold-relieving type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342849.6A CN105781474B (en) | 2016-05-23 | 2016-05-23 | Prevent the device and application method of marine riser extensional vibration in the case where solving mold-relieving type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105781474A CN105781474A (en) | 2016-07-20 |
| CN105781474B true CN105781474B (en) | 2018-07-13 |
Family
ID=56379328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610342849.6A Expired - Fee Related CN105781474B (en) | 2016-05-23 | 2016-05-23 | Prevent the device and application method of marine riser extensional vibration in the case where solving mold-relieving type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781474B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518397A (en) * | 2011-12-24 | 2012-06-27 | 大连理工大学 | Tension mooring type underwater drilling system and mounting method for same |
| CN102678082A (en) * | 2011-03-01 | 2012-09-19 | 韦特柯格雷公司 | Drilling riser adapter (11) connecting member possessing submarine operation |
| CN203097850U (en) * | 2012-12-25 | 2013-07-31 | 中国海洋石油总公司 | Emergency release device of deep water drilling riser |
| CN203321371U (en) * | 2013-05-23 | 2013-12-04 | 宝鸡石油机械有限责任公司 | Hydraulic drive cantilever type chuck device for installing marine riser |
| CN204299498U (en) * | 2014-12-01 | 2015-04-29 | 无锡市钻通工程机械有限公司 | No-dig technique ejector sleeve machine slip mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002088515A1 (en) * | 2001-04-30 | 2002-11-07 | Woodside Energy Limited | Offshore delivery line support |
-
2016
- 2016-05-23 CN CN201610342849.6A patent/CN105781474B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678082A (en) * | 2011-03-01 | 2012-09-19 | 韦特柯格雷公司 | Drilling riser adapter (11) connecting member possessing submarine operation |
| CN102518397A (en) * | 2011-12-24 | 2012-06-27 | 大连理工大学 | Tension mooring type underwater drilling system and mounting method for same |
| CN203097850U (en) * | 2012-12-25 | 2013-07-31 | 中国海洋石油总公司 | Emergency release device of deep water drilling riser |
| CN203321371U (en) * | 2013-05-23 | 2013-12-04 | 宝鸡石油机械有限责任公司 | Hydraulic drive cantilever type chuck device for installing marine riser |
| CN204299498U (en) * | 2014-12-01 | 2015-04-29 | 无锡市钻通工程机械有限公司 | No-dig technique ejector sleeve machine slip mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105781474A (en) | 2016-07-20 |
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| GR01 | Patent grant | ||
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Granted publication date: 20180713 |