CN108625783B - Auxiliary rock breaking tool for underground pressurization - Google Patents
Auxiliary rock breaking tool for underground pressurization Download PDFInfo
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- CN108625783B CN108625783B CN201810715635.8A CN201810715635A CN108625783B CN 108625783 B CN108625783 B CN 108625783B CN 201810715635 A CN201810715635 A CN 201810715635A CN 108625783 B CN108625783 B CN 108625783B
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- rotating shaft
- sleeve
- hydraulic cylinder
- piston rod
- rock breaking
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- 239000011435 rock Substances 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 17
- 230000003068 static effect Effects 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003345 natural gas Substances 0.000 abstract description 2
- 239000003209 petroleum derivative Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research 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
- 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 invention relates to an underground pressurizing auxiliary rock breaking tool; belongs to the technical field of downhole operation tools for petroleum and natural gas. The rock breaking tool comprises an adapter, an upper shell, a lower shell, a turbine main shaft, a rotating shaft and a hydraulic cylinder, wherein the turbine main shaft is arranged in the upper shell; the lower shell is internally provided with a rotating shaft, a hydraulic cylinder is fixedly arranged in the lower shell at one side of the rotating shaft, and the hydraulic cylinder is in sliding connection with the rotating shaft; a magnetic reciprocating mechanism is arranged on a rotating shaft between the hydraulic cylinder and the thrust bearing through a sealing block. The underground pressurizing auxiliary rock breaking tool has the advantages of simple structure, stable pulse and no harmful impact; the problems of complex structure and high manufacturing difficulty of the existing underground supercharging device are solved; short life and harmful impact; the service life and the reliability of the pressurizing auxiliary rock breaking tool are effectively improved, and the rock breaking efficiency of the drill bit is increased, so that the well construction period is shortened, and the well drilling cost is reduced.
Description
Technical Field
The invention relates to an underground pressurizing auxiliary rock breaking tool; belongs to the technical field of downhole operation tools for petroleum and natural gas.
Background
At present, the drilling speed can be greatly reduced when the drilling well encounters a hard stratum along with the increase of the proportion of deep wells and ultra-deep wells in oil fields, and the common drilling tool is difficult to meet the construction requirement. Domestic researches show that the mechanical drilling speed of the underground booster auxiliary drilling can be greatly improved in oil and gas well drilling, most of the current domestic underground booster devices use water pressure to push pistons, and the pistons drive hydraulic cylinders to reciprocate to realize underground booster, and the main differences are different reversing modes; in order to realize the reciprocating motion of the piston, a pressure difference between the upper cavity and the lower cavity of the piston cylinder must be established, and the larger the pressure difference is, the larger the output pressure is. Such devices have good supercharging performance, but also have disadvantages: the flow passage of the supercharger is complex, which causes great difficulty in processing and installation; there are detrimental impacts on the reciprocating mechanism of the supercharging device. Therefore, it is necessary to develop an auxiliary rock breaking tool with simple structure, stable pulse, no harmful impact, simple connection and convenient installation.
Disclosure of Invention
The invention aims to provide the underground supercharging device which has the advantages of simple structure, stable pulse, no harmful impact, effectively prolonged service life and reliability, and high manufacturing difficulty, and solves the problems of complex structure and high manufacturing difficulty of the existing underground supercharging device; the underground pressurizing auxiliary rock breaking tool has short service life and harmful impact.
The technical scheme of the invention is as follows:
the utility model provides a supplementary broken rock instrument of pressure boost in pit, includes crossover sub, goes up casing, lower casing, turbine main shaft, rotation axis and pneumatic cylinder, its characterized in that: the upper shell and the lower shell are in threaded connection with each other, and an adapter is arranged at one end of the upper shell in a threaded manner; a turbine main shaft is arranged in the upper shell through a turbine component and symmetrically arranged centralizing bearings; a rotating shaft is arranged in the lower shell at one side of the turbine main shaft through a thrust bearing, the turbine main shaft is in threaded connection with the rotating shaft, a hydraulic cylinder is fixedly arranged in the lower shell at one side of the rotating shaft, and the hydraulic cylinder is in sliding connection with the rotating shaft; a magnetic force reciprocating mechanism is arranged on a rotating shaft between the hydraulic cylinder and the thrust bearing through a sealing block; the magnetic force reciprocating mechanism is in threaded connection with the hydraulic cylinder; the magnetic force reciprocating mechanism is connected with the lower shell in a sliding way, and a flow-limiting sleeve and a flow-dividing sleeve are arranged on the turbine main shaft and the rotating shaft between the righting bearing and the thrust bearing through spacing rings arranged at intervals.
The rotating shaft is provided with a central through hole, and a plurality of diversion holes are radially and uniformly distributed on the circumference of the turbine spindle at the joint of the turbine spindle and the rotating shaft and are communicated with the central through hole of the rotating shaft.
The magnetic force reciprocating mechanism consists of a sleeve, a movable magnet and static magnetic iron; two groups of static magnets are symmetrically arranged on the inner wall of the sleeve at intervals, two groups of moving magnets are fixedly arranged on the rotating shaft at intervals, and the moving magnets and the static magnets are arranged in a crossing mode. The circumference of the sleeve is provided with a tooth, the inner wall of the lower shell corresponding to the tooth is provided with a key groove, and the sleeve is in sliding connection with the lower shell through the cooperation of the tooth and the key groove.
The sections of the moving magnet and the static magnet are respectively fan-shaped.
And the flow limiting sleeve and the flow dividing sleeve are respectively provided with an overflow hole.
The hydraulic cylinder consists of a cylinder body and a piston rod, the bottom of the cylinder body is provided with a jet hole, the piston rod is arranged in the cylinder body, and the hydraulic cylinder is in sliding connection with the rotating shaft through the piston rod; the hydraulic cylinder is in threaded connection with the sleeve through the piston rod.
The piston rod is provided with a piston rod center hole, and a one-way valve is arranged in the piston rod center hole.
The one-way valve consists of an outer shell, a blocking cover, a spring and steel balls, wherein one end of the outer shell is provided with a liquid inlet, the blocking cover is arranged at the other end of the outer shell corresponding to the liquid inlet in a threaded manner, the steel balls are arranged on the blocking cover through the spring, the steel balls are in contact connection with the liquid inlet, and liquid outlets are formed in the blocking covers on two sides of the spring.
The invention has the beneficial effects that:
when the underground pressurizing auxiliary rock breaking tool works; the high-pressure drilling fluid enables the turbine assembly to drive the turbine main shaft to rotate, the turbine main shaft drives the rotating shaft to rotate, the moving magnet on the rotating shaft and the static magnet on the sleeve are aligned and then enable the sleeve to move upwards under the action of opposite poles attracting, when the rotating shaft rotates 180 degrees, the rotating shaft and the magnet on the sleeve are aligned again, the sleeve can move downwards under the action of homopolar repulsion, and therefore the sleeve can reciprocate up and down regularly under the driving of the drilling fluid. So reciprocating motion, thereby make the liquid of cylinder body by periodic compression thereby form high-pressure jet in drill bit water eye department through the piston rod, this high-pressure hydraulic jet can assist the drill bit broken rock, increases drill bit broken rock efficiency. The underground pressurizing auxiliary rock breaking tool has the advantages of simple structure, stable pulse and no harmful impact; the problems of complex structure and high manufacturing difficulty of the existing underground supercharging device are solved; short life and harmful impact; the service life and the reliability of the supercharged auxiliary rock breaking tool are effectively improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure in the direction A-A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at A;
fig. 4 is a schematic structural view of the check valve of the present invention.
In the figure: 1. the device comprises an adapter, 2, an upper shell, 3, a lower shell, 4, a turbine main shaft, 5, a rotating shaft, 6, a turbine component, 7, a centralizing bearing, 8, a thrust bearing, 9, a cylinder body, 10, a piston rod, 11, a jet hole, 12, a piston rod center hole, 13, a one-way valve, 14, an outer shell, 15, a blocking cover, 16, a spring, 17, a steel ball, 18, a liquid inlet, 19, a liquid outlet, 20, a sealing block, 21, a sleeve, 22, a moving magnet, 23, static magnet, 24, teeth, 25, a center through hole, 26, a flow dividing hole, 27, a flow limiting sleeve, 28 and a flow dividing sleeve.
Detailed Description
The underground supercharging auxiliary rock breaking tool comprises an adapter 1, an upper shell 2, a lower shell 3, a turbine main shaft 4, a rotating shaft 5 and a hydraulic cylinder, wherein the upper shell 2 and the lower shell 3 are connected through threads, and the adapter 1 is arranged at one end of the upper shell 2 through threads; a turbine main shaft 4 is arranged in the upper shell 2 through a turbine component 6 and a symmetrically arranged centralizing bearing 7; the turbine assembly 6 comprises a turbine rotor and a turbine stator; a rotating shaft 5 is arranged in the lower shell 3 at one side of the turbine main shaft 4 through a thrust bearing 8, the turbine main shaft 4 is in threaded connection with the rotating shaft 5, a central through hole 25 is formed in the rotating shaft 5, a plurality of diversion holes 26 are radially uniformly distributed on the circumference of the turbine main shaft 4 at the joint of the turbine main shaft 4 and the rotating shaft 5, and the diversion holes 26 are communicated with the central through hole 25 of the rotating shaft 5. A hydraulic cylinder is fixedly arranged in the lower shell 3 at one side of the rotating shaft 5 through bolts.
The hydraulic cylinder comprises a cylinder body 9 and a piston rod 10, wherein a jet hole 11 is formed in the bottom of the cylinder body 9, the piston rod 10 is arranged in the cylinder body 9, a piston rod center hole 12 is formed in the piston rod 10, and a one-way valve 13 is fixedly arranged in the piston rod center hole 12. The hydraulic cylinder is in sliding sealing connection with the rotating shaft 5 through a piston rod 10; thereby causing the center hole 12 to communicate with the center through hole 25 of the rotation shaft 5.
The check valve 13 comprises an outer shell 14, a blocking cover 15, a spring 16 and a steel ball 17, wherein one end of the outer shell 14 is provided with a liquid inlet 18, the blocking cover 15 is arranged at the other end of the outer shell 14 corresponding to the liquid inlet 18 in a threaded manner, the steel ball 17 is arranged on the blocking cover 15 through the spring 16, the steel ball 17 is connected with the liquid inlet 18 in a sealing contact manner, and liquid outlets 19 are arranged on the blocking covers 15 at two sides of the spring 16.
A magnetic force reciprocating mechanism is arranged on the rotating shaft 5 between the hydraulic cylinder 13 and the thrust bearing 8 through a sealing block 20; the magnetic force reciprocating mechanism consists of a sleeve 21, a movable magnet 22 and a static magnet 23; two groups of static magnets 23 are symmetrically arranged on the inner wall of the sleeve 21 at intervals, two groups of moving magnets 22 are fixedly arranged on the rotating shaft 5 at intervals, and the sections of the moving magnets 22 and the static magnets 23 are respectively fan-shaped; the movable magnet 22 and the static magnet 23 are arranged in a cross manner, the circumference of the sleeve 21 is provided with teeth 24, the inner wall of the lower shell 3 corresponding to the teeth 24 is provided with key grooves, and the sleeve 21 is in sliding connection with the lower shell 3 through the cooperation of the teeth 24 and the key grooves. The magnetic force reciprocating mechanism is in threaded connection with the piston rod 10 of the hydraulic cylinder through a sleeve 21. In the working process, under the rotation action of the rotating shaft 5, the moving magnet 22 on the rotating shaft 5 and the static magnet 23 on the sleeve 21 can generate periodic repulsive force and attractive force, namely like poles repel and opposite poles attract, and in the process, the sleeve 21 is driven to reciprocate in the lower shell 3; the reciprocating motion of the sleeve 21 drives the piston rod 10 to stretch and retract in the cylinder 9, so that the liquid in the cylinder 9 is periodically compressed and sprayed out of the jet hole 11 to act on the water hole of the drill bit to form high pressure. The high-pressure hydraulic jet can assist the drill bit in breaking rock, and the rock breaking efficiency of the drill bit is improved.
A flow-limiting sleeve 27 and a flow-dividing sleeve 28 are arranged on the turbine main shaft 4 and the rotating shaft 5 between the centralizing bearing 7 and the thrust bearing 8 through spacing rings arranged at intervals; the flow-limiting sleeve 27 and the flow-dividing sleeve 28 are respectively provided with flow-through holes.
When the underground supercharging auxiliary rock breaking tool works, high-pressure drilling fluid entering through the adapter 1 impacts the turbine assembly 6, so that the turbine main shaft 4 is driven to rotate, and the rotating shaft 5 rotates along with the turbine main shaft 4 due to threaded connection between the turbine main shaft 4 and the rotating shaft 5. A small part of high-pressure drilling fluid which is impacted on the turbine component 6 enters the thrust bearing 8 through the overflow holes respectively arranged on the flow limiting sleeve 27 and the flow dividing sleeve 28; to lubricate and cool the thrust bearing 8. Most drilling fluid enters the central through hole 25 of the rotating shaft 5 through the diversion hole 26, then enters the piston rod central hole 12 and compresses the steel ball 17, so that the one-way valve 13 is opened and enters the cylinder 9, and in the process, under the rotation action of the rotating shaft 5; periodic repulsive force and attractive force can be generated between the movable magnet 22 fixedly arranged on the rotating shaft 5 and the static magnet 23 fixedly arranged on the sleeve 21, namely when the positive pole and the negative pole of the movable magnet 22 correspond to the positive pole and the negative pole of the static magnet 23 or are misplaced, like poles repel each other and opposite poles repel each other, the sleeve 21 is forced to move downwards when like poles repel each other, and the sleeve 21 is forced to move upwards when opposite poles attract each other, so that the sleeve 21 reciprocates up and down regularly, and the piston rod 10 is driven to stretch in the cylinder 9 regularly; the drilling fluid entering the cylinder body 9 is compressed periodically, the compressed drilling fluid is sprayed out through the jet hole 11, and the drilling fluid is communicated with the drill bit and sprayed out through the water hole to impact the rock at the drill bit, so that the rock breaking of the drill bit is assisted, and the rock breaking efficiency of the drill bit is improved.
The underground pressurizing auxiliary rock breaking tool has the advantages of simple structure, stable pulse and no harmful impact; the problems of complex structure and high manufacturing difficulty of the existing underground supercharging device are solved; short life and harmful impact; the service life and the reliability of the pressurizing auxiliary rock breaking tool are effectively improved, and the rock breaking efficiency of the drill bit is increased, so that the well construction period is shortened, and the well drilling cost is reduced.
Claims (4)
1. The utility model provides an auxiliary rock breaking tool of pressure boost in pit, includes crossover sub (1), goes up casing (2), lower casing (3), turbine main shaft (4), rotation axis (5) and pneumatic cylinder, goes up and is threaded connection each other between casing (2) and the lower casing (3), and crossover sub (1) is installed to the one end screw thread of last casing (2); a turbine main shaft (4) is arranged in the upper shell (2) through a turbine component (6) and symmetrically arranged centralizing bearings (7); the method is characterized in that: a rotating shaft (5) is arranged in the lower shell (3) at one side of the turbine main shaft (4) through a thrust bearing (8), the turbine main shaft (4) is in threaded connection with the rotating shaft (5), a hydraulic cylinder is fixedly arranged in the lower shell (3) at one side of the rotating shaft (5), and the hydraulic cylinder is in sliding connection with the rotating shaft (5); a magnetic force reciprocating mechanism is arranged on the rotating shaft (5) between the hydraulic cylinder and the thrust bearing (8) through a sealing block (20); the magnetic force reciprocating mechanism is in threaded connection with the hydraulic cylinder; the magnetic force reciprocating mechanism is in sliding connection with the lower shell (3), and a flow-limiting sleeve (27) and a flow-dividing sleeve (28) are arranged on the turbine main shaft (4) and the rotating shaft (5) between the righting bearing (7) and the thrust bearing (8) through spacing rings arranged at intervals; the hydraulic cylinder consists of a cylinder body (9) and a piston rod (10), wherein a jet hole (11) is formed in the bottom of the cylinder body (9), the piston rod (10) is arranged in the cylinder body (9), and the hydraulic cylinder is in sliding connection with the rotating shaft (5) through the piston rod (10); the hydraulic cylinder is in threaded connection with the sleeve (21) through the piston rod (10);
the piston rod (10) is provided with a piston rod center hole (12), and a one-way valve (13) is arranged in the piston rod center hole (12); the one-way valve (13) consists of an outer shell (14), a blocking cover (15), a spring (16) and a steel ball (17), wherein a liquid inlet (18) is formed in one end of the outer shell (14), the blocking cover (15) is installed on the other end of the outer shell (14) corresponding to the liquid inlet (18) in a threaded manner, the steel ball (17) is installed on the blocking cover (15) through the spring (16), the steel ball (17) is in contact connection with the liquid inlet (18), and liquid outlets (19) are formed in the blocking covers (15) on two sides of the spring (16);
the magnetic force reciprocating mechanism consists of a sleeve (21), a movable magnet (22) and static magnetic iron (23); two groups of static magnets (23) are symmetrically arranged on the inner wall of the sleeve (21) at intervals, two groups of moving magnets (22) are fixedly arranged on the rotating shaft (5) at intervals, and the moving magnets (22) and the static magnets (23) are arranged in a crossing manner; the circumference of the sleeve (21) is provided with a tooth (24), the inner wall of the lower shell (3) corresponding to the tooth (24) is provided with a key groove, and the sleeve (21) is in sliding connection with the lower shell (3) through the matching of the tooth (24) and the key groove; the magnetic force reciprocating mechanism is in threaded connection with a piston rod (10) of the hydraulic cylinder through a sleeve (21); in the working process, under the rotation action of the rotating shaft (5), a periodic repulsive force and a periodic attractive force, namely like poles repel and opposite poles attract, are generated between a moving magnet (22) on the rotating shaft (5) and a static magnet (23) on the sleeve (21), and in the process, the sleeve (21) is driven to reciprocate in the lower shell (3); the reciprocating motion of the sleeve (21) drives the piston rod (10) to stretch and retract in the cylinder body (9), so that liquid in the cylinder body (9) is compressed periodically and sprayed out of the jet hole (11) to act on the water hole of the drill bit to form high pressure.
2. A downhole booster assisted rock breaking tool according to claim 1, wherein: the rotary shaft (5) is provided with a central through hole (25), and a plurality of diversion holes (26) are radially and uniformly distributed on the circumference of the turbine main shaft (4) at the joint of the turbine main shaft (4) and the rotary shaft (5), and the diversion holes (26) are communicated with the central through hole (25) of the rotary shaft (5).
3. A downhole booster assisted rock breaking tool according to claim 1, wherein: the sections of the moving magnet (22) and the magnetostatic iron (23) are respectively fan-shaped.
4. A downhole booster assisted rock breaking tool according to claim 1, wherein: the flow-limiting sleeve (27) and the flow-dividing sleeve (28) are respectively provided with an overflow hole.
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 CN108625783A (en) | 2018-10-09 |
| CN108625783B true CN108625783B (en) | 2023-08-22 |
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| 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 |
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| CN (1) | CN108625783B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113567B (en) * | 2018-10-29 | 2023-08-22 | 长江大学 | Hydraulic pressurizing jet tool |
| CN109057737B (en) * | 2018-10-31 | 2023-08-22 | 长江大学 | Repeatedly operable underground fishing device |
| 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 |
| CN109931000B (en) * | 2019-04-23 | 2020-07-24 | 西南石油大学 | Adjustable jet 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 |
| 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 |
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 |
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| CN108625783A (en) | 2018-10-09 |
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