CN108625783A - A kind of downhole pressure increasing auxiliary rock tool - Google Patents
A kind of downhole pressure increasing auxiliary rock tool Download PDFInfo
- Publication number
- CN108625783A CN108625783A CN201810715635.8A CN201810715635A CN108625783A CN 108625783 A CN108625783 A CN 108625783A CN 201810715635 A CN201810715635 A CN 201810715635A CN 108625783 A CN108625783 A CN 108625783A
- Authority
- CN
- China
- Prior art keywords
- rotary shaft
- hydraulic cylinder
- pressure increasing
- downhole pressure
- lower housing
- 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.)
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Links
- 239000011435 rock Substances 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 abstract description 13
- 230000001627 detrimental effect Effects 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003345 natural gas Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 210000003462 vein Anatomy 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of downhole pressure increasing auxiliary rock tools；Belong to oil, natural gas underground operation tool technical field.The rock crushing tool includes crossover sub, upper shell, lower housing, turbine spindle, rotary shaft and hydraulic cylinder, and turbine spindle is housed in upper shell；Rotary shaft is housed in lower housing, is installed with hydraulic cylinder in the lower housing of rotary shaft side, hydraulic cylinder and rotary shaft are slidably connected；Magnetic force reciprocator is equipped with by sealing block in rotary shaft between hydraulic cylinder and thrust bearing.The downhole pressure increasing auxiliary rock tool construction is simple, pulse is steady, detrimental impact is not present；Solve that existing underground pressurizing device is complicated, manufacture difficulty is big；Short life and there are problems that detrimental impact；The service life and reliability for effectively increasing supercharging auxiliary rock tool, increase drill bit efficiency of breaking rock, so as to shorten well construction period, reduce drilling cost.
Description
Technical field
The present invention relates to a kind of downhole pressure increasing auxiliary rock tools；Belong to oil, natural gas underground operation tool technology neck
Domain.
Background technology
Increase in oil field proportion now with deep-well, ultradeep well, drilling speed can be significantly when drilling well encounters firm hard formation
Decline, typical well tool is difficult to reach construction requirement.Studies in China shows downhole pressure increasing aided drilling in oil gas well drilling
Rate of penetration can be greatly improved, at present in country's underground pressurizing device, most of is all to push piston using hydraulic pressure,
Piston driving hydraulic cylinder back and forth moves to realize that shaft bottom is pressurized, and the main distinction is reversing mode difference；In order to realize piston
It moves back and forth, it is necessary to establish the pressure difference at piston cylinder upper and lower cavity both ends, pressure difference is bigger, and the pressure of output is bigger.This kind of device increases
Pressure works well, but there is also disadvantages：Booster runner is complicated, is created great difficulties to processing and installation；Supercharging device
There are detrimental impacts for reciprocator.A kind of simple in structure it is necessary to research and develop as a result, pulse is steady, and detrimental impact, connection is not present
Simply, auxiliary rock tool easy for installation.
Invention content
The object of the present invention is to provide it is a kind of it is simple in structure, pulse is steady, there is no detrimental impact, can effectively carry
High service life and reliability, the existing underground pressurizing device of solution is complicated, manufacture difficulty is big；Short life and exist harmful
The downhole pressure increasing auxiliary rock tool of impact.
The technical scheme is that：
A kind of downhole pressure increasing auxiliary rock tool, including crossover sub, upper shell, lower housing, turbine spindle, rotary shaft and hydraulic pressure
Cylinder, it is characterised in that：It is mutually threadedly coupled between upper shell and lower housing, the threaded one end of upper shell is equipped with crossover sub；
Turbine spindle is equipped with by turbine assembly and symmetrically arranged alignment bearing in upper shell；In the lower housing of turbine spindle side
Rotary shaft is installed by thrust bearing, is threadedly coupled between turbine spindle and rotary shaft, it is solid in the lower housing of rotary shaft side
Dingan County is equipped with hydraulic cylinder, and hydraulic cylinder and rotary shaft are slidably connected；Pass through sealing in rotary shaft between hydraulic cylinder and thrust bearing
Block is equipped with magnetic force reciprocator；Magnetic force reciprocator is threadedly coupled with hydraulic cylinder；Magnetic force reciprocator connects with lower housing sliding
Connect, on the turbine spindle and rotary shaft between alignment bearing and thrust bearing by spaced spacer ring install current limiting set and
Diversion sleeve.
Central through hole, turbine spindle and diameter on the turbine spindle circumference of rotation shaft connection place are provided in the rotary shaft
To multiple tap holes are evenly equipped with, tap hole is connected to the central through hole of rotary shaft.
The magnetic force reciprocator is made of sleeve, moving magnet and static magnet；It is set in interval symmetry shape on sleeve lining
Be equipped with two groups of static magnets, two groups of moving magnets be installed in interval symmetry shape in rotary shaft, between moving magnet and static magnet at
Cross-like is arranged.The provided circumferentially about of sleeve has strong tooth, is provided with keyway on lower housing inner wall corresponding with strong tooth, sleeve passes through
The cooperation of strong tooth and keyway is slidably connected with lower housing.
The section of the moving magnet and static magnet is in sector respectively.
It is respectively arranged with flowing hole on the current limliting set and diversion sleeve.
The hydraulic cylinder is made of cylinder body and piston rod, and cylinder base is provided with jet hole, and piston is provided in cylinder body
Bar, hydraulic cylinder are slidably connected by piston rod and rotary shaft；Hydraulic cylinder is connect by piston rod with bush whorl.
It is provided with piston rod centre bore on the piston rod, check valve is housed in piston rod centre bore.
The check valve is made of outer housing, blanking cover, spring and steel ball, and one end of outer housing is provided with inlet, with
The corresponding outer housing other end screw thread of inlet is equipped with blanking cover, and steel ball, steel ball and inlet are equipped with by spring on blanking cover
It connects, liquid outlet is provided on the blanking cover of the spring both sides.
The beneficial effects of the present invention are：
When the downhole pressure increasing auxiliary rock tool work；Cleaner for high-pressure drilling fluid makes turbine assembly driving turbine spindle rotation, turbine
Main shaft is understood after driving rotary shaft rotation, the moving magnet in rotary shaft to be aligned with the static magnet on sleeve under heteropolar interattraction,
Sleeve can be made to move upwards, after rotary shaft rotates 180 °, rotary shaft is aligned again with the magnet on sleeve, homopolar-repulsion effect
Sleeve can be made to move downward, thus under the driving of drilling fluid, sleeve regular can pump.And so on transport
It is dynamic, and then make the liquid of cylinder body by periodic compression to form high-pressure jet, the height at bit port by piston rod
Pressure hydraulic jet can assist drill bit broken rock, increase drill bit efficiency of breaking rock.The downhole pressure increasing auxiliary rock tool construction is simple, arteries and veins
Punching is steady, detrimental impact is not present；Solve that existing underground pressurizing device is complicated, manufacture difficulty is big；Short life and presence
The problem of detrimental impact；Effectively increase the service life and reliability of supercharging auxiliary rock tool.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 be Fig. 1 in A-A to cross section structure schematic diagram；
Fig. 3 is enlarged structure schematic diagram at the A in Fig. 1；
Fig. 4 is the structural schematic diagram of the check valve of the present invention.
In figure：1, crossover sub, 2, upper shell, 3, lower housing, 4, turbine spindle, 5, rotary shaft, 6, turbine assembly, 7, help
Positive bearing, 8, thrust bearing, 9, cylinder body, 10, piston rod, 11, jet hole, 12, piston rod centre bore, 13, check valve, 14, outer
Shell, 15, blanking cover, 16, spring, 17, steel ball, 18, inlet, 19, liquid outlet, 20, sealing block, 21, sleeve, 22, moving magnet,
23, static magnet, 24, strong tooth, 25, central through hole, 26, tap hole, 27, current limliting set, 28, diversion sleeve.
Specific implementation mode
The downhole pressure increasing auxiliary rock tool includes crossover sub 1, upper shell 2, lower housing 3, turbine spindle 4, rotary shaft 5
And hydraulic cylinder, it is mutually threadedly coupled between upper shell 2 and lower housing 3, the threaded one end of upper shell 2 is equipped with crossover sub 1；On
Turbine spindle 4 is equipped with by turbine assembly 6 and symmetrically arranged alignment bearing 7 in shell 2；Turbine assembly 6 turns including turbine
Son and turbine stator；Rotary shaft 5, turbine spindle 4 and rotation are equipped with by thrust bearing 8 in the lower housing 3 of 4 side of turbine spindle
It is threadedly coupled between shaft 5, central through hole 25, the turbine master of turbine spindle 4 and 5 junction of rotary shaft is provided in rotary shaft 5
Radial equipartition has multiple tap holes 26, tap hole 26 to be connected to the central through hole 25 of rotary shaft 5 on 4 circumference of axis.5 side of rotary shaft
Lower housing 3 in be bolted hydraulic cylinder be installed.
Hydraulic cylinder is made of cylinder body 9 and piston rod 10, and 9 bottom of cylinder body is provided with jet hole 11, and piston is provided in cylinder body 9
Bar 10 is provided with piston rod centre bore 12 on piston rod 10, check valve 13 is installed in piston rod centre bore 12.Hydraulic cylinder
It is slidably and sealingly connected with by piston rod 10 and rotary shaft 5；Thus centre bore 12 is made to be connected to the central through hole 25 of rotary shaft 5.
Check valve 13 is made of outer housing 14, blanking cover 15, spring 16 and steel ball 17, and one end of outer housing 14 is provided with feed liquor
Mouth 18,14 other end screw thread of outer housing corresponding with inlet 18 is equipped with blanking cover 15, is equipped with by spring 16 on blanking cover 15
Steel ball 17, steel ball 17 and 18 connection in sealing contact of inlet are provided with liquid outlet 19 on the blanking cover 15 of 16 both sides of spring.
Magnetic force reciprocator is equipped with by sealing block 20 in rotary shaft 5 between hydraulic cylinder 13 and thrust bearing 8；Magnetic force
Reciprocator is made of sleeve 21, moving magnet 22 and static magnet 23；On 21 inner wall of sleeve in interval symmetry shape be provided with two groups it is quiet
Magnet 23, two groups of moving magnets 22 are fixedly mounted in interval symmetry shape in rotary shaft 5, the section point of moving magnet 22 and static magnet 23
It Cheng not be fan-shaped；It is arranged at cross-like between moving magnet 22 and static magnet 23, the provided circumferentially about of sleeve 21 has strong tooth 24, with strong tooth
Keyway is provided on 24 corresponding lower housing, 3 inner wall, sleeve 21 connects by being good for tooth 24 and the cooperation of keyway with the sliding of lower housing 3
It connects.Magnetic force reciprocator is threadedly coupled by sleeve 21 with the piston rod 10 of hydraulic cylinder.In the course of work, in turning for rotary shaft 5
Under action is used, the moving magnet 22 in rotary shaft 5 will appear periodic repulsive force and phase suction with the static magnet 23 on sleeve 21,
I.e. identical charges repel each other, and there is a natural attraction between the sexes, and during this, band moving sleeve 21 moves back and forth in lower housing 3；The reciprocating motion of sleeve 21
Drive piston rod 10 flexible in cylinder body 9 so that the liquid in cylinder body 9 is acted on by periodic compression and from 11 ejection of jet hole to brill
High pressure is formed at head hydrophthalmia.The high pressure jet flow can assist drill bit broken rock, increase drill bit efficiency of breaking rock.
It is installed by spaced spacer ring on turbine spindle 4 and rotary shaft 5 between alignment bearing 7 and thrust bearing 8
Current limiting set 27 and diversion sleeve 28；It is respectively arranged with flowing hole on current limliting set 27 and diversion sleeve 28.
When the downhole pressure increasing auxiliary rock tool work, the cleaner for high-pressure drilling fluid impulse turbine component that is entered by crossover sub 1
6, to drive turbine spindle 4 to rotate, due to being threadedly coupled between turbine spindle 4 and rotary shaft 5, thus rotary shaft 5 is in company with whirlpool
Wheel main shaft 4 rotates simultaneously.The cleaner for high-pressure drilling fluid small part of impulse turbine component 6 is completed through distinguishing on current limliting set 27 and diversion sleeve 28
The flowing hole of setting enters at thrust bearing 8；To play the role of lubrication and cooling to thrust bearing 8.Most drilling well
Liquid enters through tap hole 26 in the central through hole 25 of rotary shaft 5, subsequently into piston rod centre bore 12 and steel ball 17 is compressed, makes
Check valve 13 is turned on into cylinder body 9, during this, under the rotary action of rotary shaft 5；Fixed peace in rotary shaft 5
It will appear periodic repulsive force and phase suction between the moving magnet 22 of dress and the static magnet 23 being fixedly mounted on sleeve 21, i.e., it is dynamic
When the positive and negative electrode of magnet 22 is corresponding with the positive and negative electrode of static magnet 23 or misplaces, there is the same sex between moving magnet 22 and static magnet 23
Repel each other, the case where there is a natural attraction between the sexes, when identical charges repel each other, sleeve 21 is forced to move downward, when there is a natural attraction between the sexes, sleeve 21 is forced to be transported upwards
It is dynamic, and so on so that sleeve 21 is regular to pump, and thus drives being stretched in cylinder body 9 for 10 rule of piston rod
Contracting；And then making to enter the drilling fluid in cylinder body 9 by periodic compression, compressed drilling fluid sprays through jet hole 11, is passing through
Being connected on drill bit and hydrophthalmia are projected forms impact to the rock at drill bit, to assist drill bit broken rock, increases drill bit broken rock effect
Rate.
The downhole pressure increasing auxiliary rock tool construction is simple, pulse is steady, detrimental impact is not present；It solves under existing well
Supercharging device is complicated, manufacture difficulty is big；Short life and there are problems that detrimental impact；It is broken to effectively increase supercharging auxiliary
The service life and reliability of rock tool, increase drill bit efficiency of breaking rock, so as to shorten well construction period, reduce drilling well at
This.
Claims (9)
1. a kind of downhole pressure increasing auxiliary rock tool, including crossover sub（1）, upper shell（2）, lower housing（3）, turbine spindle
（4）, rotary shaft（5）And hydraulic cylinder, it is characterised in that：Upper shell（2）And lower housing（3）Between be mutually threadedly coupled, upper shell
（2）Threaded one end crossover sub is installed（1）；Upper shell（2）Inside pass through turbine assembly（6）With symmetrically arranged alignment bearing
（7）Turbine spindle is installed（4）；Turbine spindle（4）The lower housing of side（3）Inside pass through thrust bearing（8）Rotary shaft is installed
（5）, turbine spindle（4）And rotary shaft（5）Between be threadedly coupled, rotary shaft（5）The lower housing of side（3）Inside it is installed with liquid
Cylinder pressure, hydraulic cylinder and rotary shaft（5）It is slidably connected；Hydraulic cylinder and thrust bearing（8）Between rotary shaft（5）On pass through sealing block
（20）Magnetic force reciprocator is installed；Magnetic force reciprocator is threadedly coupled with hydraulic cylinder；Magnetic force reciprocator and lower housing（3）It is sliding
Dynamic connection, alignment bearing（7）And thrust bearing（8）Between turbine spindle（4）And rotary shaft（5）It is upper by it is spaced every
Ring installs current limiting set（27）And diversion sleeve（28）.
2. a kind of downhole pressure increasing auxiliary rock tool according to claim 1, it is characterised in that：The rotary shaft（5）
On be provided with central through hole（25）, turbine spindle（4）With rotary shaft（5）The turbine spindle of junction（4）Radial equipartition on circumference
There are multiple tap holes（26）, tap hole（26）With rotary shaft（5）Central through hole（25）Connection.
3. a kind of downhole pressure increasing auxiliary rock tool according to claim 1, it is characterised in that：The magnetic force reciprocating engine
Structure is by sleeve（21）, moving magnet（22）And static magnet（23）It constitutes；Sleeve（21）Interval symmetry shape is provided with two groups on inner wall
Static magnet（23）, rotary shaft（5）It is upper to be installed with two groups of moving magnets in interval symmetry shape（22）, moving magnet（22）And static magnet
（23）Between be arranged at cross-like.
4. a kind of downhole pressure increasing auxiliary rock tool according to claim 3, it is characterised in that：The sleeve（21）'s
It is provided circumferentially about to have strong tooth（24）, with strong tooth（24）Corresponding lower housing（3）Keyway, sleeve are provided on inner wall（21）By strong
Tooth（24）Cooperation with keyway and lower housing（3）It is slidably connected.
5. a kind of downhole pressure increasing auxiliary rock tool according to claim 3, it is characterised in that：The moving magnet（22）
And static magnet（23）Section respectively be in sector.
6. a kind of downhole pressure increasing auxiliary rock tool according to claim 1, it is characterised in that：The current limliting set（27）
And diversion sleeve（28）On be respectively arranged with flowing hole.
7. a kind of downhole pressure increasing auxiliary rock tool according to claim 1, it is characterised in that：The hydraulic cylinder is by cylinder
Body（9）And piston rod（10）It constitutes, cylinder body（9）Bottom is provided with jet hole（11）, cylinder body（9）Inside it is provided with piston rod（10）,
Hydraulic cylinder passes through piston rod（10）With rotary shaft（5）It is slidably connected；Hydraulic cylinder passes through piston rod（10）With sleeve（21）Screw thread connects
It connects.
8. a kind of downhole pressure increasing auxiliary rock tool according to claim 7, it is characterised in that：The piston rod（10）
On be provided with piston rod centre bore（12）, piston rod centre bore（12）It is interior that check valve is housed（13）.
9. a kind of downhole pressure increasing auxiliary rock tool according to claim 8, it is characterised in that：The check valve（13）
By outer housing（14）, blanking cover（15）, spring（16）And steel ball（17）It constitutes, outer housing（14）One end be provided with inlet
（18）, with inlet（18）Corresponding outer housing（14）Other end screw thread is equipped with blanking cover（15）, blanking cover（15）On pass through spring
（16）Steel ball is installed（17）, steel ball（17）With inlet（18）It connects, spring（16）The blanking cover of both sides（15）Upper setting
There is liquid outlet（19）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715635.8A CN108625783B (en) | 2018-07-03 | 2018-07-03 | Auxiliary rock breaking tool for underground pressurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715635.8A CN108625783B (en) | 2018-07-03 | 2018-07-03 | Auxiliary rock breaking tool for underground pressurization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108625783A true CN108625783A (en) | 2018-10-09 |
| CN108625783B CN108625783B (en) | 2023-08-22 |
Family
ID=63689450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810715635.8A Active CN108625783B (en) | 2018-07-03 | 2018-07-03 | Auxiliary rock breaking tool for underground pressurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108625783B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057737A (en) * | 2018-10-31 | 2018-12-21 | 长江大学 | A kind of down-hole fishing device that can be operated repeatedly |
| CN109113567A (en) * | 2018-10-29 | 2019-01-01 | 长江大学 | A kind of hydraulic booster liquid jet instrument |
| CN109826558A (en) * | 2019-04-03 | 2019-05-31 | 四川省贝特石油技术有限公司 | Hydraulic high-frequency percussion rock crushing tool |
| CN109931000A (en) * | 2019-04-23 | 2019-06-25 | 西南石油大学 | Regulatable fluidic oscillation PDC drill bit |
| TWI762013B (en) * | 2020-11-04 | 2022-04-21 | 財團法人金屬工業研究發展中心 | Tool for bone implant |
| CN116446816A (en) * | 2023-05-19 | 2023-07-18 | 江苏亿拓翔建设有限公司 | Ultrahigh pressure fracturing gas production wellhead with buffer resistance-increasing channel structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK1825095T3 (en) * | 2004-12-14 | 2016-01-04 | Flexidrill Ltd | Vibration machine. |
| CN105971492A (en) * | 2016-06-08 | 2016-09-28 | 西南石油大学 | Magnet-based torsion percussion boring tool |
| CN106246106A (en) * | 2016-08-24 | 2016-12-21 | 中石化石油工程机械有限公司研究院 | A kind of pulsed hydraulic jet drilling tool |
| CN107514229A (en) * | 2017-09-28 | 2017-12-26 | 长江大学 | A kind of high frequency water jet turbodrill |
| CN208502661U (en) * | 2018-07-03 | 2019-02-15 | 长江大学 | A kind of downhole pressure increasing auxiliary rock tool |
-
2018
- 2018-07-03 CN CN201810715635.8A patent/CN108625783B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK1825095T3 (en) * | 2004-12-14 | 2016-01-04 | Flexidrill Ltd | Vibration machine. |
| CN105971492A (en) * | 2016-06-08 | 2016-09-28 | 西南石油大学 | Magnet-based torsion percussion boring tool |
| CN106246106A (en) * | 2016-08-24 | 2016-12-21 | 中石化石油工程机械有限公司研究院 | A kind of pulsed hydraulic jet drilling tool |
| CN107514229A (en) * | 2017-09-28 | 2017-12-26 | 长江大学 | A kind of high frequency water jet turbodrill |
| CN208502661U (en) * | 2018-07-03 | 2019-02-15 | 长江大学 | A kind of downhole pressure increasing auxiliary rock tool |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113567A (en) * | 2018-10-29 | 2019-01-01 | 长江大学 | A kind of hydraulic booster liquid jet instrument |
| CN109113567B (en) * | 2018-10-29 | 2023-08-22 | 长江大学 | Hydraulic pressurizing jet tool |
| CN109057737A (en) * | 2018-10-31 | 2018-12-21 | 长江大学 | A kind of down-hole fishing device that can be operated repeatedly |
| CN109057737B (en) * | 2018-10-31 | 2023-08-22 | 长江大学 | Repeatedly operable underground fishing device |
| CN109826558A (en) * | 2019-04-03 | 2019-05-31 | 四川省贝特石油技术有限公司 | Hydraulic high-frequency percussion rock crushing tool |
| CN109826558B (en) * | 2019-04-03 | 2024-04-05 | 四川省贝特石油技术有限公司 | Hydraulic high-frequency impact rock breaking tool |
| CN109931000A (en) * | 2019-04-23 | 2019-06-25 | 西南石油大学 | Regulatable fluidic oscillation PDC drill bit |
| TWI762013B (en) * | 2020-11-04 | 2022-04-21 | 財團法人金屬工業研究發展中心 | Tool for bone implant |
| CN116446816A (en) * | 2023-05-19 | 2023-07-18 | 江苏亿拓翔建设有限公司 | Ultrahigh pressure fracturing gas production wellhead with buffer resistance-increasing channel structure |
| CN116446816B (en) * | 2023-05-19 | 2023-11-28 | 江苏亿拓翔建设有限公司 | Ultrahigh pressure fracturing gas production wellhead with buffer resistance-increasing channel structure |
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|---|---|
| CN108625783B (en) | 2023-08-22 |
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