CN108086929A - A kind of adaptive hydraulic cyclone flushing tool in underground - Google Patents
A kind of adaptive hydraulic cyclone flushing tool in underground Download PDFInfo
- Publication number
- CN108086929A CN108086929A CN201810018666.8A CN201810018666A CN108086929A CN 108086929 A CN108086929 A CN 108086929A CN 201810018666 A CN201810018666 A CN 201810018666A CN 108086929 A CN108086929 A CN 108086929A
- Authority
- CN
- China
- Prior art keywords
- short circuit
- mandrel
- shell
- flushing
- hydraulic cyclone
- 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.)
- Granted
Links
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 77
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Landscapes
- 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)
- Cyclones (AREA)
- Nozzles (AREA)
Abstract
The present invention relates to a kind of adaptive hydraulic cyclone flushing tools in underground, belong to underground flushing tool technical field.The adaptive hydraulic cyclone flushing tool in the underground adjusts short circuit by shell, top connection, lower contact, Flushing nozzle, alignment bearing and variable resistance and forms：Shell threaded one end is connected with top connection；The shell other end is threaded with end cap；The alignment bearing activity set in shell by symmetry shape is equipped with mandrel；One end of mandrel is provided with variable resistance and adjusts short circuit；The other end of mandrel is equipped with Flushing nozzle by lower contact screw thread；Coil is wound in the middle part of mandrel；The both ends of coil adjust short circuit with variable resistance respectively and are connected；Magnet is set with by magnet in the shell of outer ring in the middle part of mandrel.The adaptive hydraulic cyclone flushing tool in the underground, it is simple in structure, ingenious in design, it solves the problems, such as complicated, not easy care and easily failure that existing flushing tool has, meets the needs that people use.
Description
Technical field
The present invention relates to a kind of adaptive hydraulic cyclone flushing tools in underground, belong to underground flushing tool technical field.
Background technology
As oil, natural gas deeply develop, part sand production of oil-gas wells getting worse, if do not located in time to it
Reason, it is easy to sand plug occur, oil reservoir sand buries, oil pipe fouling and phenomena such as oil well pump sand card.Therefore, it is necessary to flushing is utilized in due course
Instrument carries out well-flushing desanding operation, to reduce the flow resistance of oil gas, improves production efficiency.Existing flushing tool be pass through to
Flushing liquor is pumped into inside it, using flushing liquor pressure nozzle is driven to rotate, so that the flushing liquor sprayed forms eddy flow to pipe well
It is cleaned；In this course when flushing liquor pressure is excessive, when nozzle rotate too fast, can cause flushing liquor fluid atomizing, clearly
Wash the problem of effect is deteriorated；To solve this problem, existing flushing tool is blocked by the damping grease in mandrel oil storage tank
Rotating speed of shower nozzle is reduced with the rotation that slows down bearing, the drastically atomization of injection fluid is avoided so as to reach and slows down rotary part urgency
The purpose of play abrasion.But this kind of ways of deceleration has, and complicated, sealing element is more, not easy care and easily failure the problem of, no
The needs that people use can be met.
The content of the invention
It is an object of the invention to：A kind of simple in structure, performance issue is provided, to solve the knot that existing flushing tool has
Structure complexity, the not adaptive hydraulic cyclone flushing tool in the underground of easy care and easy Problem of Failure.
The technical scheme is that：
A kind of adaptive hydraulic cyclone flushing tool in underground, it by shell, top connection, lower contact, Flushing nozzle, alignment bearing and
Variable resistance adjusts short circuit and forms, it is characterised in that：Shell threaded one end is connected with top connection；The shell other end is threaded with end
Lid；The alignment bearing activity set in shell by symmetry shape is equipped with mandrel；One end of mandrel is provided with variable resistance and adjusts short circuit；Core
The other end of axis is equipped with Flushing nozzle by lower contact screw thread；Coil is wound in the middle part of mandrel；The both ends of coil respectively with
Variable resistance adjusts short circuit connection；Magnet is set with by magnet in the shell of outer ring in the middle part of mandrel.
The variable resistance adjusts short circuit by short circuit body, nut, short circuit upper end cover, short circuit bottom end cover, slider and adjustable
Resistance is formed；The threaded one end of mandrel is equipped with short circuit body；The threaded one end of short circuit body is connected with nut；The short circuit of nut one side
Guide rod is equipped with by short circuit upper end cover in vivo；Symmetry shape is slided equipped with slider on guide rod；Each slider and short circuit upper end
Buffer spring is provided between lid；Slider one side is equipped with adjustable resistance by short circuit bottom end cover；The both ends of adjustable resistance point
It is not connected with the both ends of coil；Slider is slidably connected with adjustable resistance.
Demarcation strip is provided on the short circuit upper end cover；Slider is located at demarcation strip both sides respectively；The nut
One end end face be in arc surface.
Multiple coiling pawls are evenly arranged on periphery in the middle part of the mandrel, the section of coiling pawl is " T " shape；Coil
It is wrapped in each coiling pawl；Multiple recirculation holes are evenly arranged on the periphery of mandrel end；Shell is connect by recirculation hole under
Head is connected with the inside of Flushing nozzle.
The Flushing nozzle is by sprayer body, flow check piston, preceding diversion pipe, circumferential nozzle, rear diversion pipe and forward direction nozzle
It forms；The threaded one end of lower contact is connected with sprayer body；Sprayer body internal thread is equipped with preceding diversion pipe；The spray of preceding diversion pipe one side
Head is sequentially installed with rear diversion pipe and forward direction nozzle in vivo；It is slided on the periphery of preceding diversion pipe by resetting spring equipped with throttling
Piston；Flow check piston is slidably and sealingly connected with sprayer body；Multiple circumferential directions are evenly equipped on sprayer body periphery outside preceding diversion pipe
Nozzle；Multiple drive holes are evenly equipped on the sprayer body periphery of preceding diversion pipe opposite side.
One end of the preceding diversion pipe is provided with defining flange；The endoporus of preceding diversion pipe is bellmouth.
The drive hole is obliquely set, the endoporus flare of the forward direction nozzle.
Sealing ring is provided between the lower contact and end cap.
The advantage of the invention is that：
The adaptive hydraulic cyclone flushing tool in the underground, it is simple in structure, ingenious in design, braking is generated by coil cutting magnetic field line
The mode of torque controls the rotating speed of Flushing nozzle, complicated, the not easy care and easily for solving that existing flushing tool has
The problem of failure, meets the needs that people use.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention；
Fig. 2 is that the variable resistance of the present invention adjusts the structure diagram of short circuit；
Fig. 3 be Fig. 1 in A-A to structure diagram；
Fig. 4 is the structure diagram of B-B direction in Fig. 1；
Fig. 5 be Fig. 1 in C-C to structure diagram；
Fig. 6 be Fig. 1 in D-D to structure diagram.
In figure：1st, shell, 2, top connection, 3, lower contact, 4, alignment bearing, 5, variable resistance adjust short circuit, 6, end cap, 7, core
Axis, 8, coil, 9, magnet set, 10, magnet, 11, short circuit body, 12, nut, 13, short circuit upper end cover, 14, short circuit bottom end cover, 15,
Slider, 16, adjustable resistance, 17, guide rod, 18, buffer spring, 19, demarcation strip, 20, coiling pawl, 21, recirculation hole, 22, spray
Head body, 23, flow check piston, 24, preceding diversion pipe, 25, circumferential nozzle, 26, rear diversion pipe, 27, forward direction nozzle, 28, resetting spring,
29th, drive hole, 30, defining flange, 31, sealing ring.
Specific embodiment
The adaptive hydraulic cyclone flushing tool in the underground is by shell 1, top connection 2, lower contact 3, Flushing nozzle, alignment bearing
4 and variable resistance adjust short circuit 5 form.
1 threaded one end of shell is connected with top connection 2；1 other end of shell is threaded with end cap 6；Lower contact 3 and end cap 6
Between be provided with sealing ring 31.The purpose for setting sealing ring 31 is：With will be between lower contact 3 and end cap 6 by sealing ring 31
Sealing；
And then prevent flushing liquor from leakage problem occurs between lower contact 3 and end cap 6.
4 activity of alignment bearing set in shell 1 by symmetry shape is equipped with mandrel 7；One end of mandrel 7 is provided with variable resistance tune
Save short circuit 5.Variable resistance adjusts short circuit 5 by short circuit body 11, nut 12, short circuit upper end cover 13, short circuit bottom end cover 14,15 and of slider
Adjustable resistance 16 is formed.
The threaded one end of mandrel 7 is equipped with short circuit body 11；The threaded one end of short circuit body 11 is connected with nut 12；Nut 12
One end end face is in arc surface.The purpose that nut 12 is arranged such is：It, can be along so that after flushing liquor enters top connection 2
The arc surface of nut 12 uniformly disperses, and is flowed through out of shell 1；And then 12 end face of nut is avoided in generation point during other shapes
Dissipate the problem of uneven.
Guide rod 17 is equipped with by short circuit upper end cover 13 in the short circuit body 11 of 12 one side of nut；Symmetry shape slides dress on guide rod 17
There is slider 15；Demarcation strip 19 is provided on short circuit upper end cover 13；Slider 15 is located at 19 both sides of demarcation strip respectively；It sets
The purpose of demarcation strip 19 is：Slider 15 to be separated, so as to prevent slider 15 from the problem of touching is short-circuit occurs.
Buffer spring 18 is provided between each slider 15 and short circuit upper end cover 13；15 one side of slider passes through short circuit
Bottom end cover 14 is equipped with adjustable resistance 16；Slider 15 is slidably connected with adjustable resistance 16.
The middle part of mandrel 7 is evenly arranged with multiple coiling pawls 20, and the section of coiling pawl 20 is " T " shape；The middle part of mandrel 7 leads to
It crosses coiling pawl 20 and is wound with coil 8；Both ends of the both ends of coil 8 respectively with adjustable resistance 16 are connected.
Slider 1 is connected by adjustable resistance 16 with coil 8；When slider 1 is closer to center, slides and touch
First 1 contact and the end distance of adjustable resistance 16 are more remote, and the resistance of 16 switch-on coil 8 of adjustable resistance is bigger；Otherwise just
It is smaller.
The purpose for setting coiling pawl 20 is：Coil 8 to be limited to the middle part of mandrel 7 by coiling pawl 20, it is prevented
The problem of getting loose.Magnet 10 is equipped with by magnet set 9 in the shell 1 of 7 middle part outer ring of mandrel.The purpose for setting magnet 10 exists
In：So as to magnetic field is formed in shell 1.
Multiple recirculation holes 21 are evenly arranged on the periphery of 7 end of mandrel；Shell 1 passes through recirculation hole 21 and lower contact 3
It is connected with the inside of Flushing nozzle.
The other end of mandrel 7 is equipped with Flushing nozzle by 3 screw thread of lower contact；Flushing nozzle is lived by sprayer body 22, throttling
Plug 23, preceding diversion pipe 24, circumferential nozzle 25, rear diversion pipe 26 and forward direction nozzle 27 are formed.
The threaded one end of lower contact 3 is connected with sprayer body 22；22 internal thread of sprayer body is equipped with preceding diversion pipe 24.Preceding water conservancy diversion
The endoporus of pipe 24 is bellmouth, and the purpose of diversion pipe 24 is before such setting：With by the bellmouth of preceding 24 endoporus of diversion pipe,
It further pressurizes to the flushing liquor into preceding diversion pipe 24, so that the flushing tool obtains better flushing effect.
Rear diversion pipe 26 and forward direction nozzle 27 are sequentially installed in the sprayer body 22 of preceding 24 one side of diversion pipe；Forward direction nozzle 27
Endoporus flare.The preceding purpose being arranged such to nozzle 27 is：So that flushing liquor carries certain pressure from forward direction
When nozzle 27 sprays, the forward direction nozzle 27 of rotation can drive flushing liquor stream to form eddy flow.
It is slided on the periphery of preceding diversion pipe 24 by resetting spring 28 equipped with flow check piston 23；Flow check piston 23 and nozzle
Body 22 is slidably and sealingly connected with.One end of preceding diversion pipe 24 is provided with defining flange 30；The purpose for setting defining flange 30 is：With
Make resetting spring 28 and resetting spring 28 being limited to always on the periphery of preceding diversion pipe 24, prevent its from " disengaging " thing occurs
Therefore.
Multiple circumferential nozzles 25 are evenly equipped on 22 periphery of sprayer body outside preceding diversion pipe 24；Preceding 24 opposite side of diversion pipe
22 periphery of sprayer body on be evenly equipped with multiple drive holes 29；Drive hole 29 is obliquely set（Referring to Figure of description 5）.It will
The purpose that drive hole 29 is arranged such is：So that flushing liquor with certain pressure from drive hole 29 spray when, can drive
Sprayer body 22 rotates.
When the adaptive hydraulic cyclone flushing tool in the underground works, the instrument is connected to continuously by top connection 2 first
On oil pipe pipe string, shaft bottom is then transferred to by coiled tubing pipe string；Then pumped by coiled tubing pipe string to the flushing tool
Enter high pressure washing liquid；After flushing liquor enters top connection 2, evenly spread to shell 1 along the arc surface of nut 12 and formed with mandrel 7
Annular space in；And after overflush fluid passes through alignment bearing 4, lower contact 3 is entered by the recirculation hole 21 of 7 end of mandrel and is rinsed
The inside of nozzle sprayer body 22.
A flushing liquor part into sprayer body 22 is sprayed onto by drive hole 29 in pipe well；The flushing liquor of injection passes through driving
Hole 29 drives sprayer body 22 to rotate；At the same time another part flushing liquor, compressing flow check piston 23 overcome the bullet of resetting spring 28
It is moved after after power, the flushing liquor after flow check piston 23 after shifting a distance inside sprayer body 22 is sprayed by circumferential nozzle 25, to pipe
The tube wall of well is cleaned；In addition remaining flushing liquor cleans pipe well by preceding sprayed to nozzle 27.In this process
In, flushing liquor pressure is higher, and the distance moved after flow check piston 23 is longer, and the number of the circumferential nozzle 25 of connection is more, ring
The area rinsed to nozzle 25 is bigger, and so can reach flushing surface product adjusts automatically with the change for being pumped into flushing liquor pressure
The purpose of section.
The sprayer body 22 rotated in above process rotates together before driving to nozzle 27；The forward direction nozzle 27 of rotation drives
The flushing liquor stream of its internal spray forms eddy flow, so as to fulfill the flushing to pipe well.At the same time the sprayer body 22 rotated passes through
Lower contact 3 adjusts short circuit 5 with moving mandrel 7 and variable resistance and rotates together.
For mandrel 7 in rotation process, mandrel 7 generates the magnetic induction line in magnetic field with 8 septum magnet 10 of moving winding, so as to generate sense
Induced current, and generate braking torque.
When the flushing liquor pressure being pumped into is higher, flushing liquor drives sprayer body 22 and mandrel 7 to rotate by drive hole 29
It is faster；Mandrel 7 rotates and must get over fast time variant resistance and adjust slider 15 in short circuit 5 under the influence of centrifugal force, can be another along
Guide rod 17 slides separation；Slider 15 is more remote from center, the resistance of 16 switch-on coil 8 of adjustable resistance with regard to smaller, this
When sense electric current it is bigger, the braking torque of generation is bigger, so that mandrel 7 is in deceleration regime；And then avoid flushing liquor
During hypertonia, sprayer body 22 rotates the generation of the too fast flushing liquid stream fogging problem sprayed before causing to nozzle 27.
When the flushing liquor pressure being pumped into is relatively low, flushing liquor by drive hole 29 drive sprayer body 22 and mandrel 7 rotate compared with
Slowly, the centrifugal force that slider 15 is subject to is smaller；At this time under the action of 18 elastic force of buffer spring, slider 15 can mutual edge
Guide rod 17 to move to center；The resistance of 16 switch-on coil 8 of adjustable resistance is just larger at this time, and sensing electric current is just smaller, production
Raw braking torque is smaller, so as to avoid flushing liquor pressure it is relatively low when occur braking torque it is larger, influence 7 rotating speed of mandrel, make
The problem of flushing liquid stream that forward direction nozzle 27 sprays cannot form vortex.
The adaptive hydraulic cyclone flushing tool in the underground, it is simple in structure, ingenious in design, it solves existing flushing tool and has
It is complicated, not easy care and easily failure the problem of, meet the needs that people use.
Claims (8)
1. a kind of adaptive hydraulic cyclone flushing tool in underground, it is by shell（1）, top connection（2）, lower contact（3）, rinse spray
Head, alignment bearing（4）Short circuit is adjusted with variable resistance（5）It forms, it is characterised in that：Shell（1）Threaded one end is connected with top connection
（2）；Shell（1）The other end is threaded with end cap（6）；Shell（1）The interior alignment bearing set by symmetry shape（4）Activity dress
There is mandrel（7）；Mandrel（7）One end be provided with variable resistance adjust short circuit（5）；Mandrel（7）The other end pass through lower contact（3）Screw thread
Flushing nozzle is installed；Mandrel（7）Middle part be wound with coil（8）；Coil（8）Both ends respectively with variable resistance adjust short circuit（5）
Connection；Mandrel（7）The shell of middle part outer ring（1）It is interior to pass through magnet set（9）Equipped with magnet（10）.
2. a kind of adaptive hydraulic cyclone flushing tool in underground according to claim 1, it is characterised in that：The variable resistance
Adjust short circuit（5）By short circuit body（11）, nut（12）, short circuit upper end cover（13）, short circuit bottom end cover（14）, slider（15）With
Adjustable resistance（16）It forms；Mandrel（7）Threaded one end short circuit body is installed（11）；Short circuit body（11）Threaded one end be connected with
Nut（12）；Nut（12）The short circuit body of one side（11）It is interior to pass through short circuit upper end cover（13）Equipped with guide rod（17）；Guide rod（17）On
Symmetry shape is slided equipped with slider（15）；Each slider（15）With short circuit upper end cover（13）Between be provided with buffer spring
（18）；Slider（15）One side passes through short circuit bottom end cover（14）Equipped with adjustable resistance（16）；Adjustable resistance（16）Both ends point
Not and coil（8）Both ends be connected；Slider（15）With adjustable resistance（16）It is slidably connected.
3. a kind of adaptive hydraulic cyclone flushing tool in underground according to claim 2, it is characterised in that：The short circuit
Upper end cover（13）On be provided with demarcation strip（19）；Slider（15）It is located at demarcation strip respectively（19）Both sides；The nut
（12）One end end face be in arc surface.
4. a kind of adaptive hydraulic cyclone flushing tool in underground according to claim 3, it is characterised in that：The mandrel
（7）Multiple coiling pawls are evenly arranged on the periphery at middle part（20）, coiling pawl（20）Section it is " T " shape；Coil（8）Winding
In each coiling pawl（20）It is interior；Mandrel（7）Multiple recirculation holes are evenly arranged on the periphery of end（21）；Shell（1）Pass through stream
Through hole（21）With lower contact（3）It is connected with the inside of Flushing nozzle.
5. a kind of adaptive hydraulic cyclone flushing tool in underground according to claim 4, it is characterised in that：The flushing
Nozzle is by sprayer body（22）, flow check piston（23）, preceding diversion pipe（24）, circumferential nozzle（25）, rear diversion pipe（26）It is sprayed with forward direction
Mouth（27）It forms；Lower contact（3）Threaded one end be connected with sprayer body（22）；Sprayer body（22）Internal thread is equipped with preceding diversion pipe
（24）；Preceding diversion pipe（24）The sprayer body of one side（22）Inside it is sequentially installed with rear diversion pipe（26）With forward direction nozzle（27）；It is leading
Flow tube（24）Periphery on pass through resetting spring（28）It slides equipped with flow check piston（23）；Flow check piston（23）With sprayer body
（22）It is slidably and sealingly connected with；Preceding diversion pipe（24）External sprayer body（22）Multiple circumferential nozzles are evenly equipped on periphery（25）；
Preceding diversion pipe（24）The sprayer body of opposite side（22）Multiple drive holes are evenly equipped on periphery（29）.
6. a kind of adaptive hydraulic cyclone flushing tool in underground according to claim 5, it is characterised in that：Described is leading
Flow tube（24）One end be provided with defining flange（30）；Preceding diversion pipe（24）Endoporus be bellmouth.
7. a kind of adaptive hydraulic cyclone flushing tool in underground according to claim 5, it is characterised in that：The driving
Hole（29）It is oblique to set, the forward direction nozzle（27）Endoporus flare.
8. a kind of adaptive hydraulic cyclone flushing tool in underground according to claim 1, it is characterised in that：It is connect under described
Head（3）With end cap（6）Between be provided with sealing ring（31）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018666.8A CN108086929B (en) | 2018-01-09 | 2018-01-09 | Downhole self-adaptive hydrocyclone flushing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018666.8A CN108086929B (en) | 2018-01-09 | 2018-01-09 | Downhole self-adaptive hydrocyclone flushing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108086929A true CN108086929A (en) | 2018-05-29 |
| CN108086929B CN108086929B (en) | 2024-03-22 |
Family
ID=62182814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810018666.8A Active CN108086929B (en) | 2018-01-09 | 2018-01-09 | Downhole self-adaptive hydrocyclone flushing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108086929B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625804A (en) * | 2018-06-11 | 2018-10-09 | 长江大学 | A kind of rotational flow flushing tool that rotating speed is controllable |
| CN109296327A (en) * | 2018-12-04 | 2019-02-01 | 长江大学 | A kind of complex cyclone flushing tool |
| CN109833988A (en) * | 2019-02-21 | 2019-06-04 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | A kind of pulsed oil storage tank Flushing nozzle |
| CN110318695A (en) * | 2019-08-06 | 2019-10-11 | 成都阿斯贝瑞科技有限公司 | A kind of fluid damping is rotated in deceleration well-flushing tool |
| CN112024506A (en) * | 2020-09-11 | 2020-12-04 | 苏州清江精密机械科技有限公司 | Ultrahigh-pressure water slip ring |
| CN113090246A (en) * | 2021-04-19 | 2021-07-09 | 华东理工大学 | Natural gas hydrate underground in-situ desanding device and method for double-layer pipe drilling |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625804A (en) * | 2018-06-11 | 2018-10-09 | 长江大学 | A kind of rotational flow flushing tool that rotating speed is controllable |
| CN108625804B (en) * | 2018-06-11 | 2024-03-22 | 长江大学 | Rotational flow flushing tool with controllable rotational speed |
| CN109296327A (en) * | 2018-12-04 | 2019-02-01 | 长江大学 | A kind of complex cyclone flushing tool |
| CN109296327B (en) * | 2018-12-04 | 2023-08-15 | 长江大学 | Duplex cyclone flushing tool |
| CN109833988A (en) * | 2019-02-21 | 2019-06-04 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | A kind of pulsed oil storage tank Flushing nozzle |
| CN109833988B (en) * | 2019-02-21 | 2020-09-11 | 中国石油化工股份有限公司 | Pulse type oil storage tank flushing nozzle |
| CN110318695A (en) * | 2019-08-06 | 2019-10-11 | 成都阿斯贝瑞科技有限公司 | A kind of fluid damping is rotated in deceleration well-flushing tool |
| CN112024506A (en) * | 2020-09-11 | 2020-12-04 | 苏州清江精密机械科技有限公司 | Ultrahigh-pressure water slip ring |
| CN113090246A (en) * | 2021-04-19 | 2021-07-09 | 华东理工大学 | Natural gas hydrate underground in-situ desanding device and method for double-layer pipe drilling |
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| CN108086929B (en) | 2024-03-22 |
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