CN208885200U - The marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance - Google Patents
The marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance Download PDFInfo
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- CN208885200U CN208885200U CN201821477900.5U CN201821477900U CN208885200U CN 208885200 U CN208885200 U CN 208885200U CN 201821477900 U CN201821477900 U CN 201821477900U CN 208885200 U CN208885200 U CN 208885200U
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- marine riser
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Abstract
The utility model is a kind of marine riser pipe nipple that the decomposition of object acoustic resonance is hydrated for deepwater drilling, the tubulose nipple body including perforation, is fixed with multiple acoustic wave transducers in the outside wall surface of tubulose nipple body；Water proof insulating layer is coated on the outside of tubulose nipple body, the multiple acoustic wave transducer is sealingly disposed between tubulose nipple body and water proof insulating layer, the energization interface that can be connected to power supply is additionally provided on water proof insulating layer, multiple acoustic wave transducers are electrically connected with energization interface.The marine riser pipe nipple that the utility model is decomposed for deepwater drilling hydration object acoustic resonance, by being continuously powered, make to generate inside marine riser makes the hydrate in pipe resonate with sound wave similar in hydrate simple harmonic oscillation frequency, can effectively avoid and forms hydrate inside pipeline；After forming hydrate inside pipeline, the acoustic wave transducer of marine riser pipe nipple is powered, and causes the hydrate for blocking pipeline that resonance occurs to break its equilibrium state by sound wave, brings it about decomposition to realize de-plugging.
Description
Technical field
The utility model is to be hydrated object sound for deepwater drilling about a kind of ocean deepwater drilling equipment, more particularly to one kind
The marine riser pipe nipple of wave resonance disintegration.
Background technique
With deeply developing for offshore oil and gas resource, oil-gas exploration and development key area is gradually by land and coastal waters phytal zone
Off-lying sea deepwater regions are turned to.On the one hand, when ocean deepwater zone is crept into, due to the environmental condition pole of high pressure low temperature near mud line
Easily cause the fluid in tubing string and equipment to form hydrate, causes fluid that can not circulate to block tubing string；On the other hand, deep water
Drilling area blocks once forming hydrate inside underwater tubing string since the depth of water is deeper, is difficult to solve tubing string inside
It blocks up to restore to recycle in well.When Hydrate Plugging occurs for underwater tubing string and equipment, it will strong influence drillng operation timeliness
And increase drillng operation cost.For deepwater drilling, the position of easily formation Hydrate Plugging mainly has at two: being at one
Close to underwater well head upper end marine riser, another place be with underwater well head lower part cooperation water proof pipeline section, this section marine riser one
Divide more than mud face, another part is below mud face.
To deepwater drilling on site, it will usually pass through the side such as heated fluid injection, dynamics or thermodynamic inhibitor into well
Method inhibits the hydrate to be formed in the inner passage of well drilling pipe column and equipment, but current method can only play prevention
Effect, hydrate can not be prevent completely to be formed in tubing string and equipment, and at present scene used in dynamics, thermodynamics
The cost of inhibitor is very high, while such additives are not environmentally friendly machine, easily pollution of marine environment, thus raw to ocean
State system causes the damage of unrepairable.After hydrate has been formed and blocks circulation canal, there has been no a kind of energy at present
Enough method for removing blockage efficiently, economic, environmentally friendly.Therefore a set of economic, efficiently, environmentally friendly tool is developed for solving deepwater drilling mud
Line nearby Hydrate Plugging problem be quite it is necessary to.
The present inventor based on years of experience and practice in relevant industries, proposes a kind of for deepwater drilling water as a result,
The marine riser pipe nipple that object acoustic resonance decomposes is closed, to overcome the deficiencies of existing technologies.
Utility model content
The purpose of this utility model is to provide a kind of marine riser decomposed for deepwater drilling hydration object acoustic resonance is short
Section after forming hydrate inside deepwater drilling circulation canal, can realize de-plugging by marine riser pipe nipple.
The another object of the utility model is to provide a kind of water proof decomposed for deepwater drilling hydration object acoustic resonance
Pipe pipe nipple, the marine riser pipe nipple can prevent the formation of hydrate.
The purpose of this utility model is achieved in that a kind of water proof decomposed for deepwater drilling hydration object acoustic resonance
Pipe pipe nipple, the tubulose nipple body including perforation, the both ends of tubulose nipple body have the first connecting pin connecting with marine riser
And second connection end, multiple acoustic wave transducers are fixed in the outside wall surface of tubulose nipple body；Packet on the outside of tubulose nipple body
It is covered with water proof insulating layer, the multiple acoustic wave transducer is sealingly disposed between tubulose nipple body and water proof insulating layer, water proof
The energization interface that can be connected to power supply is additionally provided on insulating layer, multiple acoustic wave transducers are electrically connected with energization interface.
In a better embodiment of the utility model, the acoustic wave transducer is along tubulose nipple body length direction
Multiple groups are positioned apart from, acoustic wave transducer is circumferentially evenly equipped with multiple along tubulose nipple body in every group.
In a better embodiment of the utility model, the power supply is the external electricity transferred by water surface drilling platforms
Cable.
In a better embodiment of the utility model, the power supply is the power supply being arranged on the outside of tubulose nipple body
System.
In a better embodiment of the utility model, the power supply system includes bypass line road, by-pass line
One end is connected to one end inner cavity of tubulose nipple body, and the other end of by-pass line and the other end inner cavity of tubulose nipple body connect
It is logical；One first unidirectional slide valve is respectively set in one end of by-pass line and the other end, and the opening direction of the first unidirectional slide valve is
Fluid is set to flow to one extreme direction by the other end of by-pass line, the first unidirectional slide valve is equipped with the first cracking pressure；It is other
Middle part thread a pipe equipped with a seal casinghousing, the impeller of a hydroturbine generator is arranged in the seal casinghousing；Hydroturbine generator
One transmission of electricity interface of connection, the transmission of electricity interface can be tightly connected with the energization interface.
In a better embodiment of the utility model, one end of by-pass line is parallel with the first branch line, and first
Branch line is connected to one end inner cavity of tubulose nipple body；The other end of by-pass line is parallel with second branched pipe road, and second
Branch line is connected to the other end inner cavity of tubulose nipple body；First branch line and second branched pipe road are respectively set
One second unidirectional slide valve, the opening direction of the second unidirectional slide valve are that fluid is made to flow to second branched pipe by the first branch line
Road direction, the second unidirectional slide valve are equipped with the second cracking pressure.
In a better embodiment of the utility model, the two sides that impeller circumferential direction is corresponded on seal casinghousing are respectively set
One pipeline and second pipe, the free end of first pipe is flow inlet, and is equipped with the first thread sealed closure, second pipe from
By holding as water export, and it is equipped with the second thread sealed closure；On the outer end face of first thread sealed closure and the second thread sealed closure
It is fixed with a square column type operating stick for being convenient for underwater robot rotating folding thread sealed closure respectively.
In a better embodiment of the utility model, first pipe and second pipe are respectively to free end in flaring
Conical pipeline.
In a better embodiment of the utility model, the water proof insulating layer is ceramic insulating layer.
In a better embodiment of the utility model, first connecting pin and second connection end are respectively that screw thread connects
Connect end or clamping connecting pin.
From the above mentioned, after the marine riser pipe nipple using the utility model for deepwater drilling hydration object acoustic resonance decomposition,
By being continuously powered, making to generate inside marine riser occurs the hydrate in pipe with sound wave similar in hydrate simple harmonic oscillation frequency
Resonance, can effectively avoid (prevention) from forming gas hydrates inside pipeline；Natural gas has been formed inside pipeline
After hydrate, the power supply system of the marine riser pipe nipple can automatically begin to power to acoustic wave transducer, or can also pass through electricity
Cable carries out temporary power connection to marine riser pipe nipple, causes the gas hydrates for blocking pipeline that resonance occurs to break it by sound wave
Equilibrium state brings it about decomposition to realize de-plugging.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1: the structural representation for the marine riser pipe nipple that object acoustic resonance decomposes is hydrated for deepwater drilling for the utility model
Figure one.
Fig. 2: the structural representation for the marine riser pipe nipple that object acoustic resonance decomposes is hydrated for deepwater drilling for the utility model
Figure two.
Drawing reference numeral:
100, the marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance；
1, tubulose nipple body；
11, the first connecting pin；
12, second connection end；
2, acoustic wave transducer；
3, water proof insulating layer；
4, energization interface；
41, conducting wire；
5, power supply system；
51, by-pass line；
511, the first unidirectional slide valve；
52, seal casinghousing；
53, impeller；
541, the first branch line；
542, second branched pipe road；
543, the second unidirectional slide valve；
551, first pipe；
552, second pipe；
553, the first thread sealed closure；
554, the second thread sealed closure；
555, square column type operating stick；
56, voltage stabilizing element；
57, filter device；
58, transmission of electricity interface.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In addition to non-individual defines the direction pointed out, the upper and lower equal directions being referred to herein are with the utility model
Shown in subject to upper and lower equal directions in Fig. 1, illustrate in this together.
As shown in Figure 1 and Figure 2, the utility model proposes a kind of water proofs decomposed for deepwater drilling hydration object acoustic resonance
The both ends of pipe pipe nipple 100, the tubulose nipple body 1 including perforation, tubulose nipple body 1 have and marine riser (not shown)
First connecting pin 11 of connection and second connection end 12 are fixed with multiple sound wave transducings in the outside wall surface of tubulose nipple body 1
Device 2；Water proof insulating layer 3 is coated on the outside of tubulose nipple body 1, in the present embodiment, the water proof insulating layer 3 is that ceramics are exhausted
Edge layer；The multiple acoustic wave transducer 2 is sealingly disposed between tubulose nipple body 1 and water proof insulating layer 3, water proof insulating layer 3
On be additionally provided with the energization interface 4 that can be connected to power supply, multiple acoustic wave transducers 2 are electrically connected by conducting wire 41 with energization interface 4.
The marine riser pipe nipple that the utility model is decomposed for deepwater drilling hydration object acoustic resonance, can be with a section or more piece
Mode be connected between marine riser, also can choose the suitable marine riser pipe nipple of length, it is stifled to be mounted on hydrate easy to form
The position of plug after forming hydrate inside circulation canal, can be hydrated object sound for deepwater drilling by the utility model
The acoustic resonance decomposition function of the marine riser pipe nipple of wave resonance disintegration realizes de-plugging, while being also possible to prevent the formation of hydrate.
After marine riser pipe nipple of the utility model for deepwater drilling hydration object acoustic resonance to decompose is powered, sound wave transducing
Device generates the sound wave of particular frequency range and propagates to tubular body by nipple body, when the frequency of this sound wave is close to or up to
When the simple harmonic oscillation frequency of tubular body hydrate, it will cause the covibration of hydrate molecule, to accelerate hydrate
It decomposes.
After above-mentioned marine riser pipe nipple, by being continuously powered, make to generate and hydrate simple harmonic oscillation inside marine riser
Sound wave similar in frequency makes the hydrate in pipe resonate, and (prevention) can effectively be avoided to form natural gas inside pipeline
Hydrate；After having formed gas hydrates inside pipeline, the power supply system of the marine riser pipe nipple can automatically begin to
Acoustic wave transducer power supply, or temporary power connection can also be carried out to marine riser pipe nipple by cable, cause blocking to be managed by sound wave
Resonance occurs for the gas hydrates in road to break its equilibrium state, brings it about decomposition to realize de-plugging.The utility model
The field application of marine riser pipe nipple for deepwater drilling hydration object acoustic resonance decomposition has safety drilling engineering important
Realistic meaning.
As shown in Figure 1, in the present embodiment, the acoustic wave transducer 2 along 1 length direction of tubulose nipple body (i.e.:
It is axial) it is positioned apart from multiple groups (acoustic wave transducer 2 in same level is one group), acoustic wave transducer 2 is along pipe in every group
Shape nipple body 1 is circumferentially evenly equipped with multiple；Such as: acoustic wave transducer 2 is spaced 120 degree of angle arrangements three in same group (same plane)
It is a.The acoustic wave transducer 2 is fixed in 1 outside wall surface of tubulose nipple body by glue resistant to high temperatures；It can also be by other existing
There is technology to be fixed.
The power supply can be the external cable that placement is extended downwardly from (not shown) on water surface drilling platforms.Pass through
External cable is connect by underwater ROV with energization interface 4, is powered to the acoustic wave transducer 2 of marine riser pipe nipple；By in platform
The upper frequency and size of current for adjusting supply current, precisely can easily control the frequency of sound wave size of acoustic wave transducer generation
Range promotes the gas hydrates formed in tube body to decompose while guaranteeing tube body self-strength and safety, from
And it realizes smooth de-plugging, restore circulation in well.
As shown in Figure 1, in the present embodiment, the power supply can also be the confession that 1 outside of tubulose nipple body is arranged in
Electric system 5.The power supply system 5 includes bypass line road 51, in one end of by-pass line 51 and the upper end of tubulose nipple body 1
The other end of the fixed connection of chamber, by-pass line 51 is connected to the fixation of the lower end inner cavity of tubulose nipple body 1；The one of by-pass line 51
One first unidirectional slide valve 511 is respectively set in end and the other end, and the opening direction of the first unidirectional slide valve 511 is to make fluid by side
Thread a pipe 51 the other end flow to one extreme direction (that is: fluid from the lower end of tubulose nipple body 1 by by-pass line 51 flow to
The upper end of tubulose nipple body 1), the first unidirectional slide valve 511 is equipped with the first cracking pressure；It is equipped in the middle part of by-pass line 51
The impeller 53 of one seal casinghousing 52, a hydroturbine generator is arranged in the seal casinghousing 52；Hydroturbine generator connection one is defeated
Electrical interface 58, the transmission of electricity interface 58 and the energization interface 4 can be tightly connected.
Due to the marine riser pipe nipple that selection length is suitable, and it is mounted on the position of Hydrate Plugging easy to form, therefore, water
Closing object is usually to be formed between the top and bottom of tubulose nipple body 1, after forming hydrate inside circulation canal, is bored
Well liquid is backflowed upwards by the annular space of tubulose nipple body 1 and is obstructed, since there are certain pressure and appearance for the fluid in annular space
Build the pressure phenomenon, and fluid will enter by-pass line 51 via the lower end of tubulose nipple body 1；When Fluid pressure reaches first unidirectionally
When the first cracking pressure that slide valve 511 is set, the first unidirectional slide valve 511 is unidirectionally opened, and fluid passes through under by-pass line 51
The unidirectional slide valve 511 of the first of end enters in by-pass line 51, then continues uplink by seal casinghousing 52, by by-pass line 51
The unidirectional slide valve 511 of the first of upper end enters the upper end of tubulose nipple body 1, then along 1 upper end annular space of tubulose nipple body
It backflows to drilling platforms.Fluid during this there are certain pressure and flow velocity, can in seal casinghousing 52 impeller
53 rotations, and then drive the rotor rotation of hydroturbine generator, the field generating current of rotor cutting stator.Hydroturbine generator
Transmission of electricity interface 58 is connected by a voltage stabilizing element 56, the transmission of electricity interface 58 and the energization interface 4 can be tightly connected, and then be sound
2 continued power of wave producer.
First cracking pressure is set as, greater than the mud pressure of the first unidirectional slide valve depth during normal circulation
Power, this depth mud pressure can simplify calculating are as follows: P=rou*g*H；
Wherein: rou is mud density, and g is acceleration of gravity, and H is that (distance turns depth size where the first unidirectional slide valve
The depth of disk).
In the present embodiment, the upper end of the upper and lower ends of by-pass line 51 and tubulose nipple body 1, lower end are weldering respectively
Connect fixed, and the port position of the upper/lower terminal in by-pass line 51 is respectively equipped with filter device 57, to prevent in drilling fluid
Landwaste enter in by-pass line 51.The filter device can be a filter screen.
Further, as shown in Figure 1, in the present embodiment, the circumferential two sides difference of impeller 53 is corresponded on seal casinghousing 52
First pipe 551 and second pipe 552 are set, and the free end of first pipe 551 is flow inlet, and is equipped with the first thread seal
Lid 553, the free end of second pipe 552 is water export, and is equipped with the second thread sealed closure 554；First thread sealed closure 553
It is convenient for underwater robot rotating folding thread sealed closure with being fixed with one on the outer end face of the second thread sealed closure 554 respectively
Square column type operating stick 555.
When the upper end of tubulose nipple body 1 or lower end generate hydrate, fluid can not be passed through from the lower end of tubulose nipple body 1
It, at this time can be by operating underwater ROV, by the mechanical arm of ROV when crossing by-pass line 51 and flowing to the upper end of tubulose nipple body 1
The first thread sealed closure 553 and the second thread sealed closure 554 are screwed off with the cooperation of square column type operating stick 555, seawater can be from water flow
Entrance enters in seal casinghousing 52, then is flowed out by water export, forms circulation canal；Impeller 53 rotates as a result, lasting to send out
Electricity.
It is flowed into seal casinghousing 52 for the ease of seawater, the first pipe 551 and second pipe 552 are respectively to freedom
End is in the conical pipeline of flaring.
Further, as shown in Fig. 2, in the present embodiment, one end of by-pass line 51 is parallel with the first branch line
541, the first branch line 541 is connected to the upper end inner cavity of tubulose nipple body 1；The other end of by-pass line 51 is parallel with second
Branch line 542, second branched pipe road 542 are connected to the lower end inner cavity of tubulose nipple body 1；First branch line 541
One second unidirectional slide valve 543 is respectively set with second branched pipe road 542, the opening direction of the second unidirectional slide valve 543 is to make
Fluid by the first branch line flows to second branched pipe road direction, and (that is: fluid is from the upper end of tubulose nipple body 1 by bypass pipe
Road 51 flows to the lower end of tubulose nipple body 1), the second unidirectional slide valve 543 is equipped with the second cracking pressure.
When forming hydrate between the top and bottom of tubulose nipple body 1, and the case where other channels are not available
Under, can take and establish reacting cycle channel, by the top marine riser internal flow of marine riser pipe nipple pressurize, force top every
Fluid in water pipe is via entering the first branch line 541 after filter device 57, the pressure with higher of fluid at this time, when
When Fluid pressure reaches the second cracking pressure that the second unidirectional slide valve 543 is set, the second unidirectional slide valve 543 is unidirectionally opened,
Fluid enters in by-pass line 51 by the second unidirectional slide valve 543 of the first branch line 541, then by seal casinghousing 52 after
Continuous downlink enters the lower end of tubulose nipple body 1 by the second unidirectional slide valve 543 on second branched pipe road 542, then along
1 lower end annular space of tubulose nipple body flows downward.There are certain pressure and flow velocitys for fluid during this, can be in capsul
Impeller 53 rotates in body 52, and then makes 2 continued power of hydroturbine generator sonic generator.
Second cracking pressure is set as, greater than the mud pressure of this depth during normal circulation, it is contemplated that seawater section
Depth is larger, this depth mud pressure approximate can take the P in the first cracking pressure.This pressure is less than below rotary table simultaneously,
The ultimate pressure capacity ability of more than second unidirectional slide valve each tubing string, equipment.The slip casting pipeline used when circulation is returned due to scene
Substantially not pressure-bearing carries out returning if necessary circulation and builds the pressure that may need spare one can pressure-bearing so in the use process of tool
Slip casting pipeline.
Further, in the present embodiment, the by-pass line 51, the first branch line 541, second branched pipe road 542,
First pipe 551 and second pipe 552 can also be used in conjunction with each other, and multiple fluid channel be formed, so that fluid is in capsul
Driving impeller 53 rotates in vivo, and hydroturbine generator is made to continue to generate electricity, and is sonic generator continued power.
Marine riser pipe nipple 100 installation site of the utility model for deepwater drilling hydration object acoustic resonance to decompose substantially exists
Near the mud line of seabed, such as: marine riser and underwater well head marine riser below more than underwater well head passes through during installation
One connecting pin 11 and second connection end 12 are connect with the marine riser above and below it；In the present embodiment, as shown in Figure 1.
First connecting pin 11 and second connection end 12 are respectively threaded ends, such as: the first connecting pin (upper end) 11 is female thread,
Second connection end (lower end) 12 is pin thread；Certainly, first connecting pin 11 and second connection end 12 can also be respectively to be clamped
Connecting pin.
From the above mentioned, after the marine riser pipe nipple using the utility model for deepwater drilling hydration object acoustic resonance decomposition,
By being continuously powered, making to generate inside marine riser occurs the hydrate in pipe with sound wave similar in hydrate simple harmonic oscillation frequency
Resonance, can effectively avoid (prevention) from forming gas hydrates inside pipeline；Natural gas has been formed inside pipeline
After hydrate, the power supply system of the marine riser pipe nipple can automatically begin to power to acoustic wave transducer, or can also pass through electricity
Cable carries out temporary power connection to marine riser pipe nipple, causes the gas hydrates for blocking pipeline that resonance occurs to break it by sound wave
Equilibrium state brings it about decomposition to realize de-plugging.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the conceptions and principles of the utility model
Change and modify, should belong to the range of the utility model protection.
Claims (10)
1. a kind of marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance, which is characterized in that the pipe including perforation
The both ends of shape nipple body, tubulose nipple body have the first connecting pin connecting with marine riser and second connection end, tubulose short
Multiple acoustic wave transducers are fixed in the outside wall surface of abridged edition body；It is coated with water proof insulating layer on the outside of tubulose nipple body, it is described
Multiple acoustic wave transducers are sealingly disposed between tubulose nipple body and water proof insulating layer, and being additionally provided on water proof insulating layer can be with
The energization interface of power supply connection, multiple acoustic wave transducers are electrically connected with energization interface.
2. the marine riser pipe nipple decomposed as described in claim 1 for deepwater drilling hydration object acoustic resonance, which is characterized in that
The acoustic wave transducer is positioned apart from multiple groups along tubulose nipple body length direction, and acoustic wave transducer is along tubulose in every group
Nipple body is circumferentially evenly equipped with multiple.
3. the marine riser pipe nipple decomposed as described in claim 1 for deepwater drilling hydration object acoustic resonance, which is characterized in that
The power supply is the external cable transferred by water surface drilling platforms.
4. the marine riser pipe nipple decomposed as described in claim 1 for deepwater drilling hydration object acoustic resonance, which is characterized in that
The power supply is the power supply system being arranged on the outside of tubulose nipple body.
5. the marine riser pipe nipple decomposed as claimed in claim 4 for deepwater drilling hydration object acoustic resonance, which is characterized in that
The power supply system includes bypass line road, and one end of by-pass line is connected to one end inner cavity of tubulose nipple body, bypass pipe
The other end in road is connected to the other end inner cavity of tubulose nipple body；One end of by-pass line and the other end are respectively set one first
Unidirectional slide valve, the opening direction of the first unidirectional slide valve are that fluid is made to flow to one extreme direction by the other end of by-pass line,
The first unidirectional slide valve is equipped with the first cracking pressure；A seal casinghousing, a hydroturbine generator are equipped in the middle part of by-pass line
Impeller be arranged in the seal casinghousing；One transmission of electricity interface of hydroturbine generator connection, the transmission of electricity interface and the energization interface
It can be tightly connected.
6. the marine riser pipe nipple decomposed as claimed in claim 5 for deepwater drilling hydration object acoustic resonance, which is characterized in that
One end of by-pass line is parallel with the first branch line, and the first branch line is connected to one end inner cavity of tubulose nipple body；It is other
The other end threaded a pipe is parallel with second branched pipe road, and second branched pipe road is connected to the other end inner cavity of tubulose nipple body；
One second unidirectional slide valve, the opening square of the second unidirectional slide valve is respectively set in first branch line and second branched pipe road
To being that fluid is made to flow to second branched pipe road direction by the first branch line, the second unidirectional slide valve is equipped with second and opens pressure
Power.
7. such as the marine riser pipe nipple described in claim 5 or 6 decomposed for deepwater drilling hydration object acoustic resonance, feature exists
In first pipe and second pipe is respectively set in the two sides for corresponding to impeller circumferential direction on seal casinghousing, and the free end of first pipe is
Flow inlet, and it is equipped with the first thread sealed closure, the free end of second pipe is water export, and is equipped with the second thread seal
Lid；One is fixed on the outer end face of first thread sealed closure and the second thread sealed closure respectively to open convenient for underwater robot rotation
Close the square column type operating stick of thread sealed closure.
8. the marine riser pipe nipple decomposed as claimed in claim 7 for deepwater drilling hydration object acoustic resonance, which is characterized in that
First pipe and second pipe are respectively the conical pipeline to free end in flaring.
9. the marine riser pipe nipple decomposed as described in claim 1 for deepwater drilling hydration object acoustic resonance, which is characterized in that
The water proof insulating layer is ceramic insulating layer.
10. the marine riser pipe nipple decomposed as described in claim 1 for deepwater drilling hydration object acoustic resonance, feature exist
In first connecting pin and second connection end are respectively threaded ends or clamping connecting pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821477900.5U CN208885200U (en) | 2018-09-10 | 2018-09-10 | The marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821477900.5U CN208885200U (en) | 2018-09-10 | 2018-09-10 | The marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208885200U true CN208885200U (en) | 2019-05-21 |
Family
ID=66511847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821477900.5U Withdrawn - After Issue CN208885200U (en) | 2018-09-10 | 2018-09-10 | The marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance |
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| Country | Link |
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| CN (1) | CN208885200U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979560A (en) * | 2018-09-10 | 2018-12-11 | 中国石油大学(北京) | The marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance |
| US11448060B2 (en) | 2020-03-27 | 2022-09-20 | Saudi Arabian Oil Company | Method and system for monitoring and preventing hydrate formations |
-
2018
- 2018-09-10 CN CN201821477900.5U patent/CN208885200U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979560A (en) * | 2018-09-10 | 2018-12-11 | 中国石油大学(北京) | The marine riser pipe nipple decomposed for deepwater drilling hydration object acoustic resonance |
| US11448060B2 (en) | 2020-03-27 | 2022-09-20 | Saudi Arabian Oil Company | Method and system for monitoring and preventing hydrate formations |
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