CN108086929B - Downhole self-adaptive hydrocyclone flushing tool - Google Patents
Downhole self-adaptive hydrocyclone flushing tool Download PDFInfo
- Publication number
- CN108086929B CN108086929B CN201810018666.8A CN201810018666A CN108086929B CN 108086929 B CN108086929 B CN 108086929B CN 201810018666 A CN201810018666 A CN 201810018666A CN 108086929 B CN108086929 B CN 108086929B
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- mandrel
- short circuit
- flushing
- nozzle
- guide pipe
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 73
- 239000007921 spray Substances 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 12
- 210000000078 claw Anatomy 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 25
- 239000012530 fluid Substances 0.000 description 7
- 239000004576 sand Substances 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003860 storage 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
- 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)
- Nozzles (AREA)
- Cyclones (AREA)
Abstract
The invention relates to an underground self-adaptive hydrocyclone flushing tool, and belongs to the technical field of underground flushing tools. The downhole self-adaptive hydraulic cyclone flushing tool consists of a shell, an upper connector, a lower connector, a flushing nozzle, a centralizing bearing and a variable resistance adjusting short circuit: an upper joint is connected with one end of the shell through threads; the other end of the shell is connected with an end cover through threads; a mandrel is movably arranged in the shell through a centralizing bearing which is symmetrically arranged; one end of the mandrel is provided with a variable resistance adjusting short circuit; the other end of the mandrel is provided with a flushing nozzle through a lower joint thread; a coil is wound in the middle of the mandrel; two ends of the coil are respectively connected with the variable resistance adjusting short circuit; the magnet is sleeved in the shell of the outer ring of the middle part of the mandrel through the magnet. The downhole self-adaptive hydraulic cyclone flushing tool is simple in structure and ingenious in design, solves the problems that the existing flushing tool is complex in structure, difficult to maintain and easy to fail, and meets the use needs of people.
Description
Technical Field
The invention relates to an underground self-adaptive hydrocyclone flushing tool, and belongs to the technical field of underground flushing tools.
Background
With the deep development of petroleum and natural gas, part of oil and gas wells are increasingly serious in sand production, and if the oil and gas wells are not treated in time, the phenomena of sand blockage, oil layer sand burying, oil pipe scaling, oil pump sand clamping and the like are easy to occur. Therefore, the flushing tool must be used for well flushing and sand removing operation at proper time so as to reduce the flow resistance of oil gas and improve the exploitation efficiency. The existing flushing tool pumps flushing liquid into the flushing tool, and the flushing liquid pressure is utilized to drive the spray head to rotate, so that the sprayed flushing liquid forms rotational flow to clean a pipe well; in the process, when the pressure of the flushing liquid is too high, the spray head rotates too fast, so that the atomization of the flushing liquid fluid is caused, and the cleaning effect is poor; in order to solve the problem, the existing flushing tool reduces the rotating speed of the spray head through blocking damping grease in the spindle oil storage tank and slowing down the rotation of the bearing, thereby achieving the purposes of avoiding the rapid atomization of the spray fluid and slowing down the rapid abrasion of the rotating part. However, the deceleration mode has the problems of complex structure, multiple sealing elements, difficult maintenance and easy failure, and can not meet the use needs of people.
Disclosure of Invention
The invention aims at: the downhole self-adaptive hydraulic cyclone flushing tool has the advantages of simple structure and performance, and solves the problems of complex structure, difficult maintenance and easy failure existing in the existing flushing tool.
The technical scheme of the invention is as follows:
the utility model provides a self-adaptation hydraulic cyclone washes instrument in pit, it comprises shell, top connection, lower clutch, shower nozzle, righting bearing and varistor regulation short circuit, its characterized in that: an upper joint is connected with one end of the shell through threads; the other end of the shell is connected with an end cover through threads; a mandrel is movably arranged in the shell through a centralizing bearing which is symmetrically arranged; one end of the mandrel is provided with a variable resistance adjusting short circuit; the other end of the mandrel is provided with a flushing nozzle through a lower joint thread; a coil is wound in the middle of the mandrel; two ends of the coil are respectively connected with the variable resistance adjusting short circuit; the magnet is sleeved in the shell of the outer ring of the middle part of the mandrel through the magnet.
The variable resistance adjusting short circuit consists of a short circuit body, a nut, a short circuit upper end cover, a short circuit lower end cover, a sliding contact and an adjustable resistor; a short joint body is arranged at one end of the mandrel in a threaded manner; one end of the short joint body is connected with a screw cap in a threaded manner; a guide rod is arranged in the short circuit body at one side of the screw cap through a short circuit upper end cover; sliding contacts are symmetrically arranged on the guide rods in a sliding manner; buffer springs are arranged between the sliding contacts and the short-circuit upper end cover; one side of the sliding contact is provided with an adjustable resistor through a short-circuit lower end cover; two ends of the adjustable resistor are respectively connected with two ends of the coil; the sliding contact is connected with the adjustable resistor in a sliding way.
The short circuit upper end cover is provided with a separation plate; the sliding contacts are respectively positioned at two sides of the partition plate; the end face of one end of the nut is an arc face.
A plurality of winding claws are uniformly arranged on the circumferential surface of the middle part of the mandrel, and the sections of the winding claws are T-shaped; the coil is wound in each winding claw; a plurality of flow holes are uniformly formed in the circumferential surface of the tail end of the mandrel; the outer shell is communicated with the lower joint and the inside of the flushing nozzle through the flow holes.
The flushing spray head consists of a spray head body, a throttling piston, a front flow guide pipe, a circumferential spray nozzle, a rear flow guide pipe and a forward spray nozzle; one end of the lower joint is connected with a spray head body in a threaded manner; the front flow guide pipe is arranged in the nozzle body in a threaded manner; a rear flow guide pipe and a forward nozzle are sequentially arranged in the nozzle body at one side of the front flow guide pipe; a throttle piston is slidably arranged on the circumferential surface of the front guide pipe through a return spring; the throttle piston is in sliding sealing connection with the nozzle body; a plurality of annular nozzles are uniformly distributed on the circumferential surface of the nozzle body outside the front flow guide pipe; a plurality of driving holes are uniformly distributed on the circumferential surface of the nozzle body at the other side of the front flow guiding pipe.
One end of the front flow guide pipe is provided with a limit flange; the inner hole of the front flow guiding pipe is a conical hole.
The driving holes are obliquely arranged, and the inner holes of the forward nozzles are horn-shaped.
And a sealing ring is arranged between the lower joint and the end cover.
The invention has the advantages that:
the downhole self-adaptive hydraulic cyclone flushing tool is simple in structure and ingenious in design, the rotating speed of the flushing nozzle is controlled by means of generating braking torque by cutting magnetic field lines through coils, the problems that the existing flushing tool is complex in structure, difficult to maintain and easy to fail are solved, and the use requirement of people is met.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic diagram of a varistor adjusting short circuit according to the present invention;
FIG. 3 is a schematic view of the structure in the direction A-A in FIG. 1;
FIG. 4 is a schematic view of the structure in the direction B-B in FIG. 1;
FIG. 5 is a schematic view of the structure in the direction C-C in FIG. 1;
fig. 6 is a schematic diagram of the structure in the D-D direction in fig. 1.
In the figure: 1. the device comprises a shell, 2, an upper connector, 3, a lower connector, 4, a centralizing bearing, 5, a variable resistance adjusting short circuit, 6, an end cover, 7, a mandrel, 8, a coil, 9, a magnet sleeve, 10, a magnet, 11, a short circuit body, 12, a nut, 13, a short circuit upper end cover, 14, a short circuit lower end cover, 15, a sliding contact, 16, an adjustable resistor, 17, a guide rod, 18, a buffer spring, 19, a partition plate, 20, a winding claw, 21, a circulation hole, 22, a spray head body, 23, a throttling piston, 24, a front guide pipe, 25, a circumferential nozzle, 26, a rear guide pipe, 27, a forward nozzle, 28, a return spring, 29, a driving hole, 30, a limiting flange, 31 and a sealing ring.
Detailed Description
The downhole self-adaptive hydraulic cyclone flushing tool consists of a shell 1, an upper connector 2, a lower connector 3, a flushing nozzle, a centralizing bearing 4 and a variable resistance adjusting short circuit 5.
One end of the shell 1 is connected with an upper joint 2 through threads; the other end of the shell 1 is connected with an end cover 6 through threads; a sealing ring 31 is arranged between the lower joint 3 and the end cover 6. The purpose of the seal ring 31 is to: to seal between the lower joint 3 and the end cap 6 by means of a sealing ring 31;
thereby preventing the leakage of the flushing liquid from between the lower joint 3 and the end cap 6.
A mandrel 7 is movably arranged in the shell 1 through a centralizing bearing 4 which is symmetrically arranged; one end of the mandrel 7 is provided with a variable resistance adjusting short circuit 5. The varistor adjusting short circuit 5 is composed of a short circuit body 11, a nut 12, a short circuit upper end cover 13, a short circuit lower end cover 14, a sliding contact 15 and an adjustable resistor 16.
A short joint body 11 is arranged at one end of the mandrel 7 in a threaded manner; one end of the short circuit body 11 is connected with a screw cap 12 in a threaded manner; one end face of the nut 12 is an arc face. The purpose of arranging the nut 12 in this way is: so that the flushing liquid can be uniformly dispersed along the arc surface of the nut 12 after entering the upper joint 2 and can flow through the shell 1; thereby avoiding the problem of uneven dispersion when the end face of the nut 12 takes other shapes.
A guide rod 17 is arranged in the short circuit body 11 at one side of the screw cap 12 through a short circuit upper end cover 13; the guide rod 17 is symmetrically provided with a sliding contact 15 in a sliding manner; the short upper end cover 13 is provided with a division plate 19; the sliding contacts 15 are respectively positioned at two sides of the separation plate 19; the purpose of the divider plate 19 is to: to separate the sliding contacts 15 and thereby prevent the sliding contacts 15 from touching the short circuit.
A buffer spring 18 is arranged between each sliding contact 15 and the short-circuit upper end cover 13; one side of the sliding contact 15 is provided with an adjustable resistor 16 through a short-circuit lower end cover 14; the sliding contact 15 is slidably connected to the adjustable resistor 16.
A plurality of winding claws 20 are uniformly arranged in the middle of the mandrel 7, and the section of each winding claw 20 is T-shaped; the middle part of the mandrel 7 is wound with a coil 8 through a winding claw 20; the two ends of the coil 8 are respectively connected with the two ends of the adjustable resistor 16.
The sliding contact 1 is communicated with the coil 8 through an adjustable resistor 16; when the sliding contact 1 is closer to the center position, the farther the contact of the sliding contact 1 is from the end of the adjustable resistor 16, the larger the resistor of the adjustable resistor 16 connected to the coil 8 is; the smaller the reverse.
The purpose of the winding pawl 20 is to: so as to limit the coil 8 in the middle of the mandrel 7 by the winding pawl 20, preventing the problem of its loosening. The magnet 10 is arranged in the shell 1 of the outer ring of the middle part of the mandrel 7 through the magnet sleeve 9. The purpose of the magnet 10 is to: so that a magnetic field is formed inside the housing 1.
A plurality of flow holes 21 are uniformly formed in the circumferential surface of the tail end of the mandrel 7; the housing 1 communicates with the lower joint 3 and the inside of the shower head through the communication hole 21.
The other end of the mandrel 7 is provided with a flushing nozzle through a lower joint 3 in a threaded manner; the flushing nozzle consists of a nozzle body 22, a throttle piston 23, a front flow guide pipe 24, a circular nozzle 25, a rear flow guide pipe 26 and a forward nozzle 27.
One end of the lower joint 3 is connected with a spray head body 22 in a threaded manner; the front flow guide pipe 24 is arranged in the spray head body 22 in a threaded manner. The inner hole of the front flow guiding pipe 24 is a conical hole, and the purpose of the front flow guiding pipe 24 is that: the flushing liquid entering the front flow guide pipe 24 is further pressurized through the conical hole of the inner hole of the front flow guide pipe 24, so that the flushing tool can achieve better flushing effect.
A rear flow guide pipe 26 and a forward nozzle 27 are sequentially arranged in the nozzle body 22 at one side of the front flow guide pipe 24; the inner bore of the forward nozzle 27 is flared. The forward nozzle 27 is so arranged for the purpose of: so that the forward nozzle 27 is rotated to drive the flow of flushing liquid into a swirling flow when the flushing liquid is ejected from the forward nozzle 27 with a certain pressure.
The throttle piston 23 is slidably arranged on the circumferential surface of the front flow guide pipe 24 through a return spring 28; the throttle piston 23 is in sliding sealing connection with the nozzle body 22. A limit flange 30 is arranged at one end of the front flow guide pipe 24; the purpose of locating the stop flange 30 is to: so that the return spring 28 and the return spring 28 are always limited on the circumferential surface of the front guide pipe 24, and the occurrence of a 'detachment' accident is prevented.
A plurality of annular nozzles 25 are uniformly distributed on the circumferential surface of the nozzle body 22 outside the front flow guide pipe 24; a plurality of driving holes 29 are uniformly distributed on the circumferential surface of the nozzle body 22 at the other side of the front flow guide pipe 24; the drive holes 29 are arranged in an inclined manner (see fig. 5 of the specification). The purpose of arranging the drive hole 29 in this way is that: so that the shower head body 22 can be driven to rotate when the rinse liquid is discharged from the drive hole 29 with a certain pressure.
When the downhole self-adaptive hydraulic cyclone flushing tool works, the tool is connected to a continuous oil pipe string through an upper joint 2, and then is lowered to the bottom of a well through the continuous oil pipe string; pumping high-pressure flushing fluid into the flushing tool through the coiled tubing string; after entering the upper joint 2, the flushing fluid is uniformly dispersed into an annulus formed by the shell 1 and the mandrel 7 along the arc surface of the nut 12; after passing through the centralizing bearing 4, the flushing liquid enters the lower joint 3 and the inner part of the flushing nozzle body 22 through the flowing hole 21 at the tail end of the mandrel 7.
A part of the flushing liquid entering the nozzle body 22 is sprayed into the pipe well through the driving hole 29; the sprayed flushing liquid drives the nozzle body 22 to rotate through the driving hole 29; meanwhile, the other part of flushing liquid presses the throttle piston 23 to overcome the elasticity of the return spring 28 and move backwards, the flushing liquid in the spray head body 22 is sprayed out through the annular nozzle 25 after the throttle piston 23 moves backwards for a certain distance, and the pipe wall of the pipe well is cleaned; the remaining rinse liquid is ejected through the forward nozzle 27 to clean the pipe well. In the process, the higher the flushing fluid pressure is, the longer the backward moving distance of the throttle piston 23 is, the more the number of the communicated annular nozzles 25 is, and the larger the flushing area of the annular nozzles 25 is, so that the aim of automatically adjusting the flushing area along with the change of the pressure of the pumped flushing fluid can be achieved.
The spray head body 22 rotated in the above process drives the forward nozzle 27 to rotate together; the rotating forward nozzle 27 drives the flow of flushing fluid injected therein into a swirling flow, thereby effecting flushing of the tubular well. At the same time, the rotating nozzle body 22 drives the mandrel 7 and the varistor adjusting short circuit 5 to rotate together through the lower joint 3.
During the rotation of the spindle 7, the spindle 7 drives the coil 8 to cut the magnetic induction line of the magnetic field generated by the magnet 10, thereby generating induction current and braking torque.
When the pressure of the pumped flushing liquid is higher, the flushing liquid drives the nozzle body 22 and the mandrel 7 to rotate faster through the driving hole 29; the faster the mandrel 7 rotates, the sliding contacts 15 in the resistance adjustment short circuit 5 can slide and separate along the guide rod 17 under the action of centrifugal force; the farther the sliding contact 15 is away from the center position, the smaller the resistance of the adjustable resistor 16 connected with the coil 8 is, the larger the induced current is, and the larger the generated braking torque is, so that the mandrel 7 is in a deceleration state; and further, the problem of atomization of the flushing liquid stream sprayed from the forward nozzle 27 caused by too fast rotation of the nozzle body 22 when the flushing liquid pressure is too high is avoided.
When the pressure of the pumped flushing liquid is low, the flushing liquid drives the nozzle body 22 and the mandrel 7 to rotate slowly through the driving hole 29, and the centrifugal force applied to the sliding contact 15 is small; at this time, under the action of the elastic force of the buffer spring 18, the sliding contacts 15 move toward the center along the guide rod 17; at this time, the resistance of the adjustable resistor 16 connected to the coil 8 is larger, the induced current is smaller, and the generated braking torque is smaller, so that the problem that the rotating speed of the mandrel 7 is affected by larger braking torque when the flushing liquid pressure is lower, and the flushing liquid flow sprayed from the forward nozzle 27 cannot form vortex is avoided.
The downhole self-adaptive hydraulic cyclone flushing tool is simple in structure and ingenious in design, solves the problems that the existing flushing tool is complex in structure, difficult to maintain and easy to fail, and meets the use needs of people.
Claims (5)
1. The utility model provides a self-adaptation hydraulic cyclone washes instrument in pit, it comprises shell (1), upper joint (2), lower joint (3), shower nozzle, righting bearing (4) and varistor regulation short circuit (5), its characterized in that: one end of the shell (1) is connected with an upper joint (2) through threads; the other end of the shell (1) is connected with an end cover (6) through threads; a mandrel (7) is movably arranged in the shell (1) through a centralizing bearing (4) which is symmetrically arranged; one end of the mandrel (7) is provided with a variable resistance adjusting short circuit (5); the other end of the mandrel (7) is provided with a flushing nozzle through a lower joint (3) in a threaded manner; a coil (8) is wound in the middle of the mandrel (7); two ends of the coil (8) are respectively connected with the variable resistance adjusting short circuit (5); a magnet (10) is arranged in the shell (1) of the outer ring of the middle part of the mandrel (7) through a magnet sleeve (9);
the variable resistance adjusting short circuit (5) is composed of a short circuit body (11), a nut (12), a short circuit upper end cover (13), a short circuit lower end cover (14), a sliding contact (15) and an adjustable resistor (16); a short joint body (11) is arranged at one end of the mandrel (7) in a threaded manner; one end of the short circuit body (11) is connected with a screw cap (12) in a threaded manner; a guide rod (17) is arranged in the short circuit body (11) at one side of the screw cap (12) through a short circuit upper end cover (13); the guide rod (17) is symmetrically provided with sliding contacts (15) in a sliding manner; a buffer spring (18) is arranged between each sliding contact (15) and the short-circuit upper end cover (13); one side of the sliding contact (15) is provided with an adjustable resistor (16) through a short-circuit lower end cover (14); two ends of the adjustable resistor (16) are respectively connected with two ends of the coil (8); the sliding contact (15) is in sliding connection with the adjustable resistor (16);
a sealing ring (31) is arranged between the lower joint (3) and the end cover (6);
the flushing spray head consists of a spray head body (22), a throttling piston (23), a front flow guide pipe (24), a circumferential spray nozzle (25), a rear flow guide pipe (26) and a forward spray nozzle (27); one end of the lower joint (3) is connected with a spray head body (22) in a threaded manner; a front flow guide pipe (24) is arranged in the spray head body (22) in a threaded manner; a rear flow guide pipe (26) and a forward nozzle (27) are sequentially arranged in the nozzle body (22) at one side of the front flow guide pipe (24); a throttle piston (23) is slidably arranged on the circumferential surface of the front guide pipe (24) through a return spring (28); the throttle piston (23) is in sliding sealing connection with the nozzle body (22); a plurality of annular nozzles (25) are uniformly distributed on the circumferential surface of the nozzle body (22) outside the front flow guide pipe (24); a plurality of driving holes (29) are uniformly distributed on the circumferential surface of the nozzle body (22) at the other side of the front flow guide pipe (24).
2. A downhole adaptive hydrocyclone flushing tool according to claim 1, wherein: a separation plate (19) is arranged on the short-circuit upper end cover (13); the sliding contacts (15) are respectively positioned at two sides of the partition plate (19); one end face of the nut (12) is an arc face.
3. A downhole adaptive hydrocyclone flushing tool according to claim 2, wherein: a plurality of winding claws (20) are uniformly arranged on the circumferential surface of the middle part of the mandrel (7), and the section of each winding claw (20) is T-shaped; the coil (8) is wound in each winding claw (20); a plurality of flow holes (21) are uniformly formed in the circumferential surface of the tail end of the mandrel (7); the housing (1) communicates with the lower joint (3) and the interior of the flushing nozzle through a flow hole (21).
4. A downhole adaptive hydrocyclone flushing tool according to claim 1, wherein: one end of the front flow guide pipe (24) is provided with a limit flange (30); the inner hole of the front flow guiding pipe (24) is a conical hole.
5. A downhole adaptive hydrocyclone flushing tool according to claim 1, wherein: the driving hole (29) is obliquely arranged, and the inner hole of the forward nozzle (27) is in a horn shape.
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 CN108086929A (en) | 2018-05-29 |
| CN108086929B true CN108086929B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810018666.8A Active CN108086929B (en) | 2018-01-09 | 2018-01-09 | Downhole self-adaptive hydrocyclone flushing tool |
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| Country | Link |
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| CN (1) | CN108086929B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625804B (en) * | 2018-06-11 | 2024-03-22 | 长江大学 | Rotational flow flushing tool with controllable rotational speed |
| CN109296327B (en) * | 2018-12-04 | 2023-08-15 | 长江大学 | Duplex cyclone flushing tool |
| 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 |
| CN113090246B (en) * | 2021-04-19 | 2022-03-25 | 华东理工大学 | Natural gas hydrate underground in-situ desanding device and method for double-layer pipe drilling |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2277164C1 (en) * | 2005-02-22 | 2006-05-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Well cleaning and flushing device |
| CN202108436U (en) * | 2011-01-14 | 2012-01-11 | 西南石油大学 | Hydraulic auto-rotation jet head for washing well |
| CN102414471A (en) * | 2009-03-05 | 2012-04-11 | Aps技术公司 | System and method for damping vibration in a drill string using a magnetorheological damper |
| CN105134112A (en) * | 2015-09-11 | 2015-12-09 | 重庆大学 | Hole-flushing method for gas extraction drilled hole under coal mine |
| CN105221622A (en) * | 2015-09-17 | 2016-01-06 | 同济大学 | The equivalent inertial mass damper of variable rotation |
| CN205012943U (en) * | 2015-08-10 | 2016-02-03 | 宝鸡石油机械有限责任公司 | Rotatory instrument that washes of coiled tubing |
| CN207701092U (en) * | 2018-01-09 | 2018-08-07 | 长江大学 | A kind of adaptive hydraulic cyclone flushing tool in underground |
-
2018
- 2018-01-09 CN CN201810018666.8A patent/CN108086929B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2277164C1 (en) * | 2005-02-22 | 2006-05-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Well cleaning and flushing device |
| CN102414471A (en) * | 2009-03-05 | 2012-04-11 | Aps技术公司 | System and method for damping vibration in a drill string using a magnetorheological damper |
| CN202108436U (en) * | 2011-01-14 | 2012-01-11 | 西南石油大学 | Hydraulic auto-rotation jet head for washing well |
| CN205012943U (en) * | 2015-08-10 | 2016-02-03 | 宝鸡石油机械有限责任公司 | Rotatory instrument that washes of coiled tubing |
| CN105134112A (en) * | 2015-09-11 | 2015-12-09 | 重庆大学 | Hole-flushing method for gas extraction drilled hole under coal mine |
| CN105221622A (en) * | 2015-09-17 | 2016-01-06 | 同济大学 | The equivalent inertial mass damper of variable rotation |
| CN207701092U (en) * | 2018-01-09 | 2018-08-07 | 长江大学 | A kind of adaptive hydraulic cyclone flushing tool in underground |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108086929A (en) | 2018-05-29 |
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