CN111485819B - Vibration impact drilling acceleration tool - Google Patents
Vibration impact drilling acceleration tool Download PDFInfo
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- CN111485819B CN111485819B CN201910084187.0A CN201910084187A CN111485819B CN 111485819 B CN111485819 B CN 111485819B CN 201910084187 A CN201910084187 A CN 201910084187A CN 111485819 B CN111485819 B CN 111485819B
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- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 230000001133 acceleration Effects 0.000 title claims abstract description 28
- 210000002445 nipple Anatomy 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims description 12
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 241000237503 Pectinidae Species 0.000 claims 4
- 235000020637 scallop Nutrition 0.000 claims 4
- 230000001174 ascending effect Effects 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007790 solid phase Substances 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
-
- 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
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
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 provides a vibration impact drilling acceleration tool, which comprises: the device comprises a shell, wherein one end of the shell is fixedly provided with a first short section, and the other end of the shell is connected with a second short section; a reciprocating impact device disposed within the housing, comprising: a jet nozzle fixedly mounted in the first nipple; the torsional rotary impact mechanism is arranged at the downstream of the jet nozzle and comprises a vibration shaft, an impact hammer sleeved on the vibration shaft and an impact hammer seat which is arranged between the impact hammer and the shell and is fixedly connected with the second pup joint, and the impact hammer is configured to swing in a certain range in the circumferential direction of the impact hammer seat; the vibration shaft is configured to move upwards along the axial direction and drive the impact hammer to rotate to strike the impact hammer seat to generate torsion impact, and can move downwards under the action of jet fluid to generate axial impact after reaching an upper limit position, so that periodic axial and torsion impact loads are formed on the drill bit.
Description
Technical Field
The invention relates to the technical field of drilling tools in petroleum exploitation engineering, in particular to a vibration impact drilling speed-increasing tool.
Background
With the continued development of petroleum drilling technology, in drilling engineering, many different functional drilling tools are emerging to meet different operational requirements. With the continuous development of technology, the performance of the drilling tool in the prior art is greatly improved.
In the prior art, in order to improve the rock breaking efficiency of deep well and ultra-deep well hard rock stratum, an axial and torsion composite impact drilling technology is generally adopted. Currently, the two-way impact technique mainly includes a power assembly type and a hydraulic valve type according to the difference of impact generation modes. The principle of the power assembly is that a screw rod or a turbine assembly drives the impact hammer to rotate, and the rotating motion of the impact hammer is converted into periodic axial and torsional impact actions through a slope boss. The principle of the hydraulic valve is that the impact hammer is driven to generate axial and torsion impact actions through switching of the overflow channel.
However, under special working conditions such as deep wells, ultra-deep wells, high temperature and high pressure, the stability of power components such as screws, turbines and the like is poor. The hydraulic valve type hydraulic valve is complex in structure, and relates to a plurality of pore channels, and drilling fluid solid-phase particles are easy to block the flow channels to cause tool failure. In addition, in the deep well hard rock layer and the high abrasive stratum, the mechanical drilling speed of the drilling tool in the prior art is low, and the bottom hole assembly has the stick-slip vibration phenomenon, so that the construction efficiency of the drilling tool is low, and the drill bit is easy to damage.
Disclosure of Invention
In view of the above-described technical problems, the present invention aims to provide a vibratory impulse drilling acceleration tool capable of providing periodic axial and torsional bi-directional impact loads, so that the rock breaking volume and cutting efficiency of a drilling tool using the acceleration tool can be significantly improved. Meanwhile, the vibration impact drilling acceleration tool can effectively reduce the stick-slip vibration of the bottom drilling tool caused by insufficient torque, reduce the impact of underground axial vibration on a drill bit, avoid the damage of the drill bit and the failure of the drilling tool, and remarkably improve the service life of the drill bit.
To this end, according to the invention, there is provided a vibratory impulse drilling acceleration tool comprising: a cylindrical shell, wherein one end of the shell is fixedly provided with a first nipple for connecting a drill string, and the other end of the shell is connected with a second nipple for connecting a drill bit; a reciprocating impact device disposed within the housing, the reciprocating impact device comprising: a jet nozzle fixedly mounted in the first nipple; the torsional rotary impact mechanism is arranged at the downstream of the jet nozzle and comprises a vibration shaft, an impact hammer sleeved on the vibration shaft and an impact hammer seat which is arranged between the impact hammer and the shell and is fixedly connected with the second pup joint, and the impact hammer is configured to swing in a certain range in the circumferential direction of the impact hammer seat; the vibration shaft is configured to move upwards under the action of a fluid pressure difference formed at the jet orifice of the jet nozzle, drive the impact hammer to rotate and strike the impact hammer seat under the action of the ball and the spiral slide way to generate torsion impact, and move downwards under the action of jet fluid to generate axial impact after reaching an upper limit, so that periodic axial and torsion impact loads are formed on the drill bit.
In a preferred embodiment, the vibration shaft is configured as a hollow cylinder and is provided at one end with an annular radial protrusion, the outer diameter of which is arranged to be equal to the inner diameter of the housing.
In a preferred embodiment, the other end of the vibrating shaft is configured to be closed, and a plurality of circumferentially uniformly distributed lateral through holes are arranged on the side wall near the closed end, and the lateral through holes are configured to be closed at the upper limit position of the vibrating shaft and to be opened at the lower limit position.
In a preferred embodiment, a step is provided on the axially inner side of the vibration shaft in the radial direction projection, a first gland is provided between one end face of the impact hammer and the step, and a second gland is provided between the other end face of the impact hammer and the impact hammer seat.
In a preferred embodiment, two fan-shaped grooves extending in the circumferential direction are provided radially symmetrically on the inner wall of one end of the hammer seat, and the extending length of the fan-shaped grooves in the axial direction is set to be equal to the length of the hammer.
In a preferred embodiment, two fan-shaped protrusions are symmetrically arranged on the outer surface of the impact hammer in a radial direction, the extending angle of the fan-shaped protrusions in the circumferential direction is smaller than that of the fan-shaped grooves, and the fan-shaped protrusions are correspondingly arranged in the fan-shaped grooves, so that the impact hammer impacts the impact hammer seat under the action of circumferential swinging to generate torsional impact load.
In a preferred embodiment, the other end of the hammer seat is provided to be closed and provided with a boss extending along the central axis for receiving the axial impact of the hammer.
In a preferred embodiment, a plurality of flow passages which are uniformly distributed in the circumferential direction and extend in the axial direction are arranged at the closed end of the impact hammer seat, and the flow passages are configured to communicate the lateral through holes with the drill bit at the position where the vibration shaft is at the lower limit.
In a preferred embodiment, the inner diameter of the jet nozzle is arranged to decrease from one end to the other end, and the outer diameter is arranged as a reducing step.
In a preferred embodiment, further comprising a motion limiting mechanism disposed downstream of the reciprocating impact device, comprising: a limiting snap ring arranged between the impact hammer seat and the second short section; and the limiting snap ring radially extends into the annular groove and can axially move in the annular groove, so that the movement range of the reciprocating impact device in the axial direction is limited.
Drawings
The present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a cross-sectional view of a vibratory percussion drilling acceleration tool for drilling according to the invention.
Fig. 2 is a sectional view taken along section B-B in fig. 1.
Fig. 3 shows a perspective view of a vibration shaft in the vibration impact drilling acceleration tool of fig. 1.
Fig. 4 shows a perspective view of the impact hammer of the vibratory impact drilling acceleration tool of fig. 1.
Fig. 5 shows a perspective view of the hammer block of the vibratory impact drilling acceleration tool of fig. 1.
Fig. 6 is a cross-sectional view taken along section A-A in fig. 1.
In the present application, all of the figures are schematic drawings which are intended to illustrate the principles of the application only and are not to scale.
Detailed Description
The invention is described below with reference to the accompanying drawings.
It should be noted that the end of the vibratory impulse drilling acceleration tool lowered into the wellbore at the far end from the wellhead (right end in fig. 1) is defined as "lower end" or the like, and the end at the near end to the wellhead (left end in fig. 1) is defined as "upper end" or the like.
Fig. 1 is a cross-sectional view of a vibratory impulse drilling acceleration tool 100 for drilling in accordance with the present invention. As shown in fig. 1, the vibratory impulse drilling acceleration tool 100 includes a cylindrical housing 110, and an upper end of the housing 110 is configured as a negative taper connection. A first nipple 120 is fixedly connected to the upper end of the housing 110, and the lower end of the first nipple 120 is configured to be capable of having a forward tapered connector of a negative tapered connector adapter connection of the upper end of the housing 110. The first sub 120 is for connection to a drill string. In one embodiment, the housing 110 is fixedly coupled to the first nipple 120 by threads. In order to ensure the tightness of the connection between the housing 110 and the first nipple 120, a seal 111 is provided between the positive and negative tapered connector links. Such a structure of the housing 110 and the first nipple 120 is simple and convenient to install.
Further, a second nipple 122 is connected to the lower end of the housing 110, and the second nipple 122 is adapted to be connected to a drill bit. As shown in fig. 1 and 2, the outer diameter of the second nipple 122 is set equal to the inner diameter of the housing 110. One end (right end in fig. 1) of the second nipple 122 is provided with a plurality of radially outward protrusions 123 with a fan-shaped cross section, and the protrusions 123 are uniformly distributed at intervals in the circumferential direction. Meanwhile, a lower end (right end in fig. 1) portion of the housing 110 is provided with a plurality of grooves 113 extending axially from the end portion in a partial and sectional shape in a fan shape. The protrusions 123 are correspondingly installed in the grooves 113, and the extension of the grooves 113 in the circumferential direction is greater than the extension of the protrusions 123 in the circumferential direction. Thereby, the second nipple 122 is in movable connection with the housing 110, and the second nipple 122 can rotate within a certain circumferential range between the housings 110. This connection between the second nipple 122 and the housing 110 effectively reduces the impact of the vibration of the drill bit on the vibration impact drilling acceleration tool 100, and provides a buffering force, thereby reducing the impact of the drill bit and avoiding damage to the vibration impact drilling acceleration tool 100.
According to the present invention, the vibratory impulse drilling acceleration tool 100 further comprises a reciprocating impulse device 130 arranged within the housing 110, the reciprocating impulse device 130 being arranged downstream of the jet nozzle 140. As shown in fig. 1, the reciprocating impingement apparatus 130 includes a jet nozzle 140 fixedly mounted at the inlet of the first nipple 120. In one embodiment, the jet nozzle 140 is fixedly mounted within the first sub 120 by threads. The jet nozzle 140 has an inner diameter that decreases from one end to the other end and an outer diameter that is configured as a variable diameter step. This configuration of the jet nozzle 140 ensures a stable and effective installation within the first nipple 120 and enables the fluid to flow through the orifice of the jet nozzle 140 to form a high velocity jet.
As shown in fig. 1, the reciprocating impact device 130 further includes a torsional rotary impact mechanism 150 disposed downstream of the jet nozzle 140, the torsional rotary impact mechanism 150 including a vibratory shaft 160. The vibration shaft 160 is configured to be movable in the axial direction, which is movable upstream by a fluid pressure difference formed at the ejection port of the jet nozzle 130. A generally sleeve-shaped impact hammer 170 is fitted over the outer surface of the vibration shaft 160, and the impact hammer 170 is configured to generate a circumferential impact by the axial movement of the vibration shaft 160. The rotary impact mechanism 150 further includes an impact hammer seat 180, where the impact hammer seat 180 is disposed between the impact hammer 170 and the housing 110, and where the impact hammer seat 180 is fixedly connected to the second nipple 122. The impact hammer 170 is mounted in cooperation with the impact hammer seat 180, and the impact hammer 170 can swing within a certain range in the circumferential direction of the impact hammer seat 180, so that circumferential torsional impact generated by the impact hammer 170 is transmitted to the impact hammer seat 180 and further transmitted to the drill bit, and the construction efficiency of the drill bit is improved.
As shown in fig. 1 and 3, the vibration shaft 160 is configured as a hollow cylinder. One end (left end in fig. 1) of the vibration shaft 160 is provided with an annular radial protrusion 161, and an outer diameter of the radial protrusion 161 is set to be equal to an inner diameter of the housing 110. Preferably, a clearance fit is formed between the outer surface of the radial projection 161 and the inner wall of the housing 110. The other end (right end in fig. 1) of the vibration shaft 160 is configured to be closed, and a plurality of circumferentially uniformly distributed lateral through holes 162 are provided on a side wall near the closed end. In the embodiment shown in fig. 3, four direction-finding through holes 162 are provided on the side wall of the vibration shaft 160. The lateral through hole 162 is configured to be closed at an upper limit position in the axial direction of the vibration shaft 160 and to be opened at a lower limit position.
According to the present invention, a plurality of spherical recesses 163 uniformly distributed in the circumferential direction are provided on the outer side of the side wall of the vibration shaft 160. A spherical recess 163 is provided at a position upstream of the lateral through hole 162, and a ball 164 is installed in the spherical recess 163. The function of the balls 164 will be described in detail below.
Fig. 4 shows a perspective structure of the impact hammer 170. As shown in fig. 4, the impact hammer 170 includes a cylindrical body portion 171. On the inner wall surface of the body portion 171, a plurality of spiral runners 172 are provided, and the plurality of spiral runners 172 are uniformly distributed in the circumferential direction and extend in the circumferential direction to one end surface of the body portion 171. In the mounted state, the balls 164 on the outer surface of the vibration shaft 160 are correspondingly mounted in the inner slide 172 of the impact hammer 170. Thus, the axial movement generated by the vibration shaft 160 can drive the impact hammer 170 to rotate under the action of the balls 164 and the spiral slide 172 to generate circumferential impact. Meanwhile, the vibration shaft 160 can descend under the action of the injection fluid to generate axial impact after reaching the upper limit position, thereby forming periodic axial and torsional impact loads on the drill bit through the impact hammer seat 180.
Fig. 5 shows a perspective structure of the impact hammer seat 180. As shown in fig. 1 and 5, the impact hammer seat 180 is configured in a substantially cylindrical shape, and an upper portion thereof is installed between the impact hammer 170 and the housing 110. The outer portion of the lower end of the impact hammer seat 180 is provided with a step. In one embodiment, threads are provided on the outer peripheral surface of the step. The hammer seat 180 is fixedly mounted with the second nipple 122 by a threaded connection.
In the present embodiment, two fan-shaped grooves 181 are provided on the inner wall of the upper end (left end in fig. 1) portion of the impact hammer seat 180, and the two fan-shaped grooves 181 are radially symmetrically arranged and extend partially in the circumferential direction. The extension length of the fan-shaped groove 181 in the axial direction is set to be equal to the axial length of the impact hammer 170. As shown in fig. 6, two fan-shaped protrusions 174 are radially symmetrically provided on the outer surface of the impact hammer 170, and the angle of extension of the fan-shaped protrusions 174 in the circumferential direction is smaller than the angle of extension of the fan-shaped grooves 181 in the circumferential direction. The scalloped projections 174 on the hammer 170 fit into the scalloped recesses 181 of the hammer seat 180. Thus, the circumferential impact generated by the impact hammer 170 can strike the impact hammer seat 180 under the circumferential swing action, thereby generating a torsional impact load and transmitting it to the drill bit to improve the efficiency of the construction of the drill bit.
In the present embodiment, when the vibration shaft 160 is at the lower limit position, the fan-shaped protrusion 174 on the impact hammer 170 does not contact the fan-shaped groove 181 on the impact hammer base 180, and when the vibration shaft 160 is at the upper limit position, the fan-shaped protrusion 174 hits the fan-shaped groove 181 to generate a torsional impact. Thus, the torsional impact is a clockwise unidirectional impact.
According to the present invention, the lower end (right end in fig. 1) of the hammer seat 180 is provided to be closed, and is provided with a boss 184 extending along the central axis for receiving the axial impact of the hammer 170. In addition, a plurality of flow passages 186 which are uniformly distributed in the circumferential direction and extend in the axial direction are provided at the closed end of the impact hammer seat 180. When the vibratory shaft 170 is in the lower limit position, the lateral through-holes 162 communicate with the drill bit through the flow passages 186, thereby allowing fluid in the vibratory shaft 170 to flow into the drill bit through the flow passages 186.
A first gland 176 is provided between the vibration shaft 160 and the hammer 170, and a second gland 178 is provided between the hammer 170 and the hammer seat 180. A step is provided on the axial inner side of the radial projection 161 on the vibration shaft 160, and a first gland 176 is provided between one end face of the impact hammer 170 and the step. The first gland 176 and the second gland 178 effectively ensure tightness between the impact hammer 170 and the vibration shaft 160 and stability of the impact hammer 170 in an axial position.
According to the present invention, the vibratory impulse drilling acceleration tool 100 further comprises a motion limiter mechanism arranged downstream of the reciprocating impact device 130, the motion limiter mechanism comprising a limiter collar 191, the limiter collar 191 being fixed between the axial end face of the step of the hammer seat 180 and the axial end face of the second nipple 122. In one embodiment, the retaining collar 191 is configured as a split. Meanwhile, an annular groove 112 is provided on the inner wall of the housing 110, and a stopper ring 191 radially extends into the annular groove 112 and is axially movable within the annular groove 112, thereby defining a range of movement of the reciprocating impact device 130 in the axial direction. When the drill bit does not contact the bottom of the well or contacts the bottom of the well but is stressed less, the reciprocating impact device 130 moves downwards under the action of drilling fluid pressure and self gravity and is limited at the lower limit position of the annular groove 112 under the action of the motion limiting mechanism, and when the drill bit bears a certain bit pressure, the reciprocating impact device 130 is limited at the upper limit position of the annular groove 112.
In actual operation, the fluid flows through the jet nozzle 140 to form a high-speed jet, so that a local low pressure is formed around the outlet of the jet nozzle 140, and the vibration shaft 160 moves upwards under the action of the fluid pressure difference. Meanwhile, the vibration shaft 160 drives the impact hammer 170 to rotate and strike the impact hammer seat 180 through the cooperation of the balls 164 and the spiral slide ways 172 to form torsional impact until the upper limit position, the lateral through hole 162 of the vibration shaft 160 is blocked, the water impact action formed by the jet nozzle 140 forces the vibration shaft 160 to move downwards until the lower limit position, the vibration shaft 160 strikes the boss 184 of the impact hammer seat 180 to generate axial impact force, and the torsional impact does not occur. Therefore, periodical axial and torsional bidirectional impact loads are formed, so that periodical axial and torsional loads are applied to the drill bit, and the construction efficiency of the drill bit is greatly improved.
The vibratory impulse drilling acceleration tool 100 for drilling according to the present invention is capable of providing periodic axial and torsional bi-directional impact loads to the drill bit, thereby increasing the mechanical rotational speed of the drilling tool and significantly increasing the rock breaking volume and cutting efficiency of the drill bit. In addition, the vibration impact drilling acceleration tool 100 can effectively reduce the stick-slip vibration of the bottom hole tool caused by insufficient torque, reduce the impact of the underground axial vibration on the drill bit, avoid the damage of the drill bit and the failure of the drill tool, and remarkably improve the service life of the drill bit.
Finally, it should be noted that the above description is only of a preferred embodiment of the invention and is not to be construed as limiting the invention in any way. Although the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the techniques described in the foregoing examples, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A vibratory impulse drilling acceleration tool, comprising:
a cylindrical casing (110), one end of which is fixed with a first nipple (120) for connecting a drill string, and the other end of which is connected with a second nipple (122) for connecting a drill bit;
a reciprocating impact device (130) disposed within the housing, the reciprocating impact device comprising:
a jet nozzle (140) fixedly mounted within the first nipple;
A torsional rotary impact mechanism (150) arranged downstream of the jet nozzle and comprising a vibrating shaft (160), an impact hammer (170) sleeved on the vibrating shaft, and an impact hammer seat (180) arranged between the impact hammer and the shell and fixedly connected with the second short section, wherein the impact hammer is configured to swing within a certain range in the circumferential direction of the impact hammer seat;
The vibration shaft is configured into a hollow cylinder, one end of the vibration shaft is provided with an annular radial protrusion (161), the outer diameter of the radial protrusion is equal to the inner diameter of the shell, the outer surface of the vibration shaft is provided with a plurality of spherical grooves (163) uniformly distributed in the circumferential direction, balls (164) are arranged in the spherical grooves, the inner surface of the impact hammer is provided with a plurality of spiral slide ways (172) corresponding to the balls, the vibration shaft is configured to be capable of ascending under the action of fluid pressure difference formed at the injection port of the jet nozzle, and the impact hammer is driven to rotate and impact the impact hammer seat under the action of the balls and the spiral slide ways to generate torsion impact, and the vibration shaft is capable of descending under the action of jet fluid to generate axial impact after reaching an upper limit position, so that periodical axial and torsion impact load is formed on the drill bit;
A motion limiting mechanism is arranged at the downstream of the reciprocating impact device.
2. A vibratory impulse drilling acceleration tool according to claim 1, characterized in, that the other end of the vibratory shaft is configured to be closed and that several circumferentially equally distributed lateral through holes (162) are provided in the side wall near the closed end, which are configured to be closed in the upper limit position and to be opened in the lower limit position of the vibratory shaft.
3. A vibratory impulse drilling acceleration tool according to claim 1 or 2, characterized in, that a step is provided in the vibratory shaft axially inside the radial projection, a first gland (176) is provided between one end face of the impact hammer and the step, and a second gland (178) is provided between the other end face of the impact hammer and the impact hammer seat.
4. A vibratory impulse drilling acceleration tool according to claim 2, characterized in, that two circumferentially partly extending sector grooves (181) are provided radially symmetrically on the inner wall of one end of the hammer seat, the extension of the sector grooves in the axial direction being arranged to be equal to the length of the hammer.
5. The vibratory impulse drilling acceleration tool of claim 4, wherein two scallops (174) are radially symmetrically disposed on an outer surface of the hammer and extend at a smaller angle in the circumferential direction than the scallops, the scallops being correspondingly mounted into the scallops such that the hammer impacts the hammer seat under a circumferential oscillation to create a torsional impact load.
6. A vibratory impulse drilling acceleration tool according to claim 5, characterized in, that the other end of the hammer seat is arranged closed and provided with a boss (184) extending along the centre axis for bearing the axial impact of the hammer.
7. The vibratory impulse drilling acceleration tool of claim 6, characterized in that a number of circumferentially equally distributed and axially extending flow channels (186) are provided at the closed end of the hammer seat, said flow channels being configured to communicate the lateral through holes with the drill bit at the lower limit position of the vibratory shaft.
8. A vibratory impulse drilling tool as claimed in claim 1, wherein the inner diameter of the jet nozzle is arranged to decrease from one end to the other and the outer diameter is arranged as a reducing step.
9. The vibratory impulse drilling acceleration tool of claim 1, wherein the motion limiter mechanism comprises:
a limit clamp ring (191) arranged between the impact hammer seat and the second short section;
an annular groove (112) is provided on the inner wall of the housing, the limit catch ring extending radially into the annular groove and being axially movable within the annular groove, thereby defining the range of motion of the reciprocating impact device in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084187.0A CN111485819B (en) | 2019-01-29 | 2019-01-29 | Vibration impact drilling acceleration tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084187.0A CN111485819B (en) | 2019-01-29 | 2019-01-29 | Vibration impact drilling acceleration tool |
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| Publication Number | Publication Date |
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| CN111485819A CN111485819A (en) | 2020-08-04 |
| CN111485819B true CN111485819B (en) | 2024-09-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114992833A (en) * | 2021-03-02 | 2022-09-02 | 中国石油化工股份有限公司 | Nozzle for exhaust system and nozzle wind speed adjusting method |
| CN113307388A (en) * | 2021-06-02 | 2021-08-27 | 戴梦梦 | Jet aeration system capable of adjusting jet direction and adjusting method thereof |
| CN115874934A (en) * | 2021-09-28 | 2023-03-31 | 中国石油化工股份有限公司 | Turbine type oscillation impactor |
| CN116104411B (en) * | 2021-11-10 | 2025-11-07 | 中国石油天然气集团有限公司 | Shaft-torsion coupling impact accelerating tool |
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| CN209724214U (en) * | 2019-01-29 | 2019-12-03 | 中国石油化工股份有限公司 | A kind of vibratory impulse drilling speed tool |
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| US5396965A (en) * | 1989-01-23 | 1995-03-14 | Novatek | Down-hole mud actuated hammer |
| US6742609B2 (en) * | 2001-05-11 | 2004-06-01 | United Diamond Ltd. | Rotational impact drill assembly |
| RU2343266C1 (en) * | 2007-07-02 | 2009-01-10 | Институт горного дела Сибирского отделения Российской академии наук | Immersed air hammer |
| CN102454364B (en) * | 2010-10-19 | 2014-05-21 | 中国石油化工集团公司 | A torsional percussion drilling tool |
| CN102966305B (en) * | 2012-12-11 | 2014-12-31 | 闫铁 | Near-bit circumferential resonance impacter |
| CN104563862B (en) * | 2014-12-17 | 2016-09-28 | 中国石油大学(北京) | composite impact drilling tool |
| CN105156027B (en) * | 2015-10-01 | 2017-08-22 | 中国石油集团西部钻探工程有限公司 | Torsion impact speed enhancing apparatus |
| CN105927147B (en) * | 2016-07-05 | 2018-08-10 | 西南石油大学 | A kind of percussion drilling speed-raising tool and method |
| CN108915583B (en) * | 2018-06-25 | 2019-11-19 | 北京工业大学 | Mechanical compound percussion drilling speed increasing tool |
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- 2019-01-29 CN CN201910084187.0A patent/CN111485819B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209724214U (en) * | 2019-01-29 | 2019-12-03 | 中国石油化工股份有限公司 | A kind of vibratory impulse drilling speed tool |
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