CN118835927B - Semi-automatic pneumatic directional hydraulic jetting tool for downhole radial well - Google Patents
Semi-automatic pneumatic directional hydraulic jetting tool for downhole radial well Download PDFInfo
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- CN118835927B CN118835927B CN202411321875.1A CN202411321875A CN118835927B CN 118835927 B CN118835927 B CN 118835927B CN 202411321875 A CN202411321875 A CN 202411321875A CN 118835927 B CN118835927 B CN 118835927B
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- 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
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Abstract
The invention discloses a semiautomatic directional hydraulic jetting tool for a downhole radial well, which belongs to the technical field of drilling engineering and comprises a tailstock, a rotator, a fixed sliding sleeve, a poking device and a top cover, wherein the upper part of the rotator is sleeved in an inner hole of the tailstock, the rotator can rotate around an axis and axially move relative to the tailstock, a plurality of rotary meshing parts are uniformly arranged at the bottom end of the rotator along the circumferential direction, the fixed sliding sleeve is fixedly connected with the top cover, the poking device is in sliding fit inside the fixed sliding sleeve, a plurality of poking fit parts corresponding to the rotary meshing parts are arranged at the top end of the poking device, a liquid cavity is arranged between the poking device and the top cover, a poking air cavity is arranged between the poking device and the fixed sliding sleeve, a rotary air cavity is arranged between the rotator and the tailstock, and a water spraying hole is arranged on the outer side wall of the rotator extending out of the tailstock. The invention can realize fixed angle rotation in the circumferential direction, the directional angle rigidly rotates circularly, and no superposition error is caused, thereby completing the directional hydraulic spraying function and having simple and convenient operation.
Description
Technical Field
The invention belongs to the technical field of drilling engineering, and particularly relates to a semiautomatic directional hydraulic jetting tool for a downhole radial well.
Background
In the field of oil and gas engineering, directional hydraulic jet drilling technology is becoming more and more important. The radial well hydraulic jet directional drilling is to use the hydraulic rock breaking function of high pressure jet, collect and arrange relevant jet data by computer, and implement directional hydraulic jet directional drilling, and drill several circumferential holes in different direction of oil layer, with the length of holes being hundreds of meters.
The radial well hydraulic jet directional drilling technology can be applied to near-well pollution zones, thin layers or thin layers, casing deformed wells, formations with poor yield increase, when well completion or secondary well completion is needed, water injection wells and sewage wells are treated, when injection quantity and water injection profile are improved, oil fields are fractured or acidified, when repeated fracturing and acidification effects are improved, steam contact area is increased when thickened oil is developed, and the like.
The radial well hydraulic jet directional drilling technology is realized, the directional hydraulic jet tool plays a key role, and the precise directional hydraulic jet tool can be realized, so that the efficient development of an oil-gas field is facilitated.
Based on the above, the application provides a semi-automatic pneumatic directional hydraulic jetting tool for a downhole radial well, which can realize fixed-angle rotation in the circumferential direction, thereby completing the directional hydraulic jetting function.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a semiautomatic pneumatic directional hydraulic jetting tool for a downhole radial well.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A semi-automatic pneumatic directional hydraulic jetting tool for a downhole radial well comprises a tailstock, a rotator, a fixed sliding sleeve, a toggle device and a top cover which are coaxially arranged;
The upper part of the rotator is sleeved in the inner hole of the tailstock, the rotator can rotate around the axis and axially move relative to the tailstock, and a plurality of rotary meshing parts are uniformly arranged at the bottom end of the rotator along the circumferential direction;
The bottom end of the fixed sliding sleeve is fixedly connected with the top cover;
The poking device is axially matched in the fixed sliding sleeve in a sliding manner, and a plurality of poking matching parts corresponding to the rotary meshing parts are uniformly arranged at the top end of the poking device along the circumferential direction;
a liquid cavity is arranged between the bottom end of the poking device and the top end of the top cover, and the liquid cavity is connected with the liquid supply branch;
a poking air cavity is arranged between the outer side wall of the lower part of the poking device and the inner side wall of the fixed sliding sleeve, and the poking air cavity is connected with a poking air supply branch;
a rotary air cavity is arranged between the top end of the rotator and the inner wall of the tailstock, and is connected with a rotary air supply branch;
the outer side wall of the rotator, which extends out of the tailstock, is provided with a water spray hole, and the water spray hole is connected with a hydraulic spray pipeline.
Preferably, the rotary meshing part comprises rotary meshing teeth, reset teeth and reset grooves which are sequentially arranged along the circumferential direction, the bottom end surface of the rotary meshing teeth is a first inclined surface, the bottom end surface of the reset teeth is a second inclined surface, and the first inclined surface and the second inclined surface are arranged in parallel;
the high end of the first inclined surface is connected with the low end of the second inclined surface through a vertical surface extending along the axial direction, the high end of the second inclined surface extends to the corresponding side wall of the adjacent reset groove, and the low end of the first inclined surface extends to the corresponding side wall of the adjacent reset groove.
Preferably, the stirring matching part comprises stirring teeth, guide ribs and guide grooves, wherein the top end surface of the stirring teeth is a third inclined surface which can be matched with the first inclined surface and the second inclined surface, and the top end surface of the guide ribs is a fourth inclined surface which can be matched with the first inclined surface and the second inclined surface;
the lower end of the third inclined surface extends to the corresponding side wall of the adjacent guide groove, the higher end of the third inclined surface is connected with the horizontal surface of the toggle device through a vertical surface extending along the axial direction, and the other end of the horizontal surface is vertically connected with the corresponding side wall of the adjacent guide groove;
the guide rib is axially matched in the guide groove in a sliding way, and the guide rib is fixedly connected with the fixed sliding sleeve.
Preferably, the length of the radial outer wall surface of the rotary meshing tooth along the circumferential direction is twice as long as the length of the radial outer wall surface of the reset tooth along the circumferential direction, and the length of the radial outer wall surface of the reset tooth along the circumferential direction is consistent with the length of the reset groove along the circumferential direction of the radial outer wall surface of the rotary device;
The length of the radial outer wall surfaces of the poking teeth and the guide ribs along the circumferential direction is consistent with the length of the radial outer wall surfaces of the reset teeth along the circumferential direction.
Preferably, the liquid supply branch comprises a liquid cavity first connecting hole which is arranged in the fixed sliding sleeve and communicated with the liquid cavity, a liquid supply pipe column which is communicated with the liquid cavity first connecting hole is arranged between the fixed sliding sleeve and the tailstock, and a liquid cavity second connecting hole which is communicated with the liquid supply pipe column is arranged in the tailstock.
Preferably, the stirring air supply branch comprises a stirring air cavity first connecting hole which is arranged in the fixed sliding sleeve and communicated to the stirring air cavity, an air supply pipe column which is communicated to the stirring air cavity first connecting hole is arranged between the fixed sliding sleeve and the tailstock, and a stirring air cavity second connecting hole which is communicated to the air supply pipe column is arranged in the tailstock.
Preferably, the rotary air supply branch comprises a rotary air cavity connecting hole which is arranged in the tailstock and communicated with the rotary air cavity.
Preferably, a water inlet annulus is arranged between the outer side wall of the rotator and the inner side wall of the tailstock, the water inlet annulus is communicated with a hydraulic jet pipeline arranged in the rotator, and a water inlet hole communicated to the water inlet annulus is arranged on the tailstock.
Preferably, the liquid cavity second connecting hole is connected with a toggle device pressure controller for controlling the pressure in the liquid cavity, the rotary air cavity connecting hole is connected with a rotary air cavity pressure controller for controlling the pressure in the rotary air cavity, the toggle air cavity second connecting hole is connected with a toggle air cavity pressure controller for controlling the pressure in the toggle air cavity, the water inlet hole is connected with a hydraulic jet controller, and the hydraulic jet controller is connected with a water jet supply system.
Preferably, the bottom end of the rotator is uniformly provided with 24 or 12 or 8 or 6 or 4 rotation engagement parts along the circumferential direction.
The beneficial effects of the invention are as follows:
The semiautomatic directional hydraulic jetting tool for the downhole radial well can realize fixed-angle rotation in the circumferential direction, the directional angle rigidly and circularly rotates, and no superposition error is caused, so that the directional hydraulic jetting function is finished, and the operation is simple and convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic perspective view of a semi-automatic pneumatic directional hydraulic jetting tool for a downhole radial well of the present invention;
FIG. 2 is a schematic top view of the structure of the semi-automatic pneumatic directional hydraulic jetting tool of the present invention for a downhole radial well;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a B-B cross-sectional view of FIG. 2;
FIG. 5 is a schematic diagram of the cooperation of the toggle, the rotator and the guide rib in the present invention;
FIG. 6 is a schematic diagram of the cooperation of the toggle device and the guide rib in the invention;
FIG. 7 is a schematic view of a rotator according to the present invention;
FIG. 8 is a schematic view of a semi-automatic pneumatic directional hydraulic jetting tool of the present invention downhole radial well within a wellbore;
FIG. 9 is a schematic diagram of the azimuth switching process of the present invention, wherein (a) is a schematic diagram of the rotator in the current working position, (b) is a schematic diagram of the rotator in the time when the high end of the fourth inclined surface on the guiding rib is aligned with the low end of the third inclined surface, and (c) is a schematic diagram of the rotator after the first rotation, (d) is a schematic diagram of the rotator after the high end of the third inclined surface on the stirring tooth is downward aligned with the low end of the first inclined surface on the rotating meshing tooth, (e) is a schematic diagram of the rotator after the second rotation, (f) is a schematic diagram of the high end of the fourth inclined surface on the guiding rib is aligned with the low end of the third inclined surface, (g) is a schematic diagram of the rotator after the high end of the third inclined surface on the stirring tooth is downward aligned with the low end of the second inclined surface on the resetting tooth, (i) is a schematic diagram of the rotator after the fourth rotation, and (j) is a schematic diagram of the rotator after the rotator reaches the next working position;
Wherein:
1-tailstock, 2-rotator, 3-fixed sliding sleeve, 4-toggle, 5-top cover, 6-rotary air cavity connecting hole, 7-water inlet hole, 8-liquid cavity second connecting hole, 9-toggle air cavity second connecting hole, 10-water inlet annulus, 11-hydraulic jet pipeline, 12-water spraying hole, 13-air supply pipe column, 14-reset groove, 15-rotary air cavity, 16-rotary meshing tooth, 161-first inclined surface, 17-reset tooth, 171-second inclined surface, 18-toggle tooth, 181-third inclined surface, 182-horizontal surface, 19-guide rib, 191-fourth inclined surface, 20-guide groove, 21-toggle air cavity first connecting hole, 22-liquid cavity first connecting hole, 23-toggle air cavity, 24-liquid supply pipe column, 25-liquid cavity;
26-toggle pressure controller, 27-rotating air cavity pressure controller, 28-toggle air cavity pressure controller, 29-hydraulic jet controller, 30-jet water supply system and 31-fixer.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present invention, the terms such as "upper", "lower", "bottom", "top", and the like refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely relational terms used for convenience in describing the structural relationships of the various components or elements of the present invention, and are not meant to designate any one component or element of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "connected," "connected," and the like should be construed broadly to mean either a fixed connection, an integral connection, or a removable connection, or a direct connection or an indirect connection via an intermediary. The specific meaning of the terms in the present invention can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present invention.
The invention will be further described with reference to the drawings and examples.
1-8, A downhole radial well semiautomatic directional hydraulic jetting tool comprises a tailstock 1, a rotator 2, a fixed sliding sleeve 3, a toggle 4 and a top cover 5 which are coaxially arranged;
The upper part of the rotator 2 is sleeved in an inner hole of the tailstock 1, the rotator 2 can rotate around an axis and axially move relative to the tailstock 1, and a plurality of rotary meshing parts are uniformly arranged at the bottom end of the rotator 2 along the circumferential direction;
the bottom end of the fixed sliding sleeve 3 is fixedly connected with the top cover 5;
the poking device 4 is axially matched in the fixed sliding sleeve 3 in a sliding manner, and a plurality of poking matching parts corresponding to the rotary meshing parts are uniformly arranged at the top end of the poking device 4 along the circumferential direction;
a liquid cavity 25 is arranged between the bottom end of the poking device 4 and the top end of the top cover 5, and the liquid cavity 25 is connected with a liquid supply branch;
a poking air cavity 23 is arranged between the outer side wall of the lower part of the poking device 4 and the inner side wall of the fixed sliding sleeve 3, the poking air cavity 23 is connected with a poking air supply branch, and specifically, when the poking device 4 moves towards the direction close to the tailstock 1, the volume of the poking air cavity 23 is reduced;
A rotary air cavity 15 is arranged between the top end of the rotator 2 and the inner wall of the tailstock 1, and the rotary air cavity 15 is connected with a rotary air supply branch;
The outer side wall of the rotator 2 extending out of the tailstock 1 is provided with a water spray hole 12, specifically, the central axis of the water spray hole 12 extends along the radial direction of the rotator 2, and the water spray hole 12 is connected with a hydraulic spray pipeline 11.
Preferably, the rotary engaging portion includes a rotary engaging tooth 16, a reset tooth 17 and a reset groove 14 sequentially arranged along a circumferential direction, a bottom end surface of the rotary engaging tooth 16 is a first inclined surface 161, a bottom end surface of the reset tooth 17 is a second inclined surface 171, and the first inclined surface 161 and the second inclined surface 171 are arranged in parallel;
The high end of the first inclined surface 161 is connected to the low end of the second inclined surface 171 through a vertical surface extending in the axial direction, the high end of the second inclined surface 171 extends to the corresponding side wall of the adjacent reset groove 14, and the low end of the first inclined surface 161 extends to the corresponding side wall of the adjacent reset groove 14.
Preferably, the stirring matching portion comprises stirring teeth 18, a guide rib 19 and a guide groove 20, wherein the top end surface of the stirring teeth 18 is a third inclined surface 181 which can be matched with the first inclined surface 161 and the second inclined surface 171, and the top end surface of the guide rib 19 is a fourth inclined surface 191 which can be matched with the first inclined surface 161 and the second inclined surface 171;
the lower end of the third inclined surface 181 extends to the corresponding side wall of the adjacent guide groove 20, the higher end of the third inclined surface 181 is connected with the horizontal surface 182 of the toggle 4 through a vertical surface extending along the axial direction, and the other end of the horizontal surface 182 is vertically connected with the corresponding side wall of the adjacent guide groove 20;
The guide rib 19 is in sliding fit in the guide groove 20 along the axial direction, and the guide rib 19 is fixedly connected with the fixed sliding sleeve 3.
Preferably, the length of the radial outer wall surface of the rotary meshing teeth 16 in the circumferential direction is twice that of the radial outer wall surface of the reset teeth 17, and the length of the radial outer wall surface of the reset teeth 17 in the circumferential direction is consistent with that of the reset groove 14 in the circumferential direction of the radial outer wall surface of the rotator 2;
The lengths of the radially outer wall surfaces of the poking teeth 18 and the guide ribs 19 along the circumferential direction are consistent with the lengths of the radially outer wall surfaces of the reset teeth 17 along the circumferential direction.
Preferably, the liquid supply branch comprises a liquid cavity first connecting hole 22 which is arranged in the fixed sliding sleeve 3 and communicated with the liquid cavity 25, a liquid supply pipe column 24 which is communicated with the liquid cavity first connecting hole 22 is arranged between the fixed sliding sleeve 3 and the tailstock 1, and a liquid cavity second connecting hole 8 which is communicated with the liquid supply pipe column 24 is arranged in the tailstock 1.
Preferably, the stirring air supply branch comprises a stirring air cavity first connecting hole 21 which is arranged in the fixed sliding sleeve 3 and communicated to the stirring air cavity 23, an air supply pipe column 13 which is communicated to the stirring air cavity first connecting hole 21 is arranged between the fixed sliding sleeve 3 and the tailstock 1, and a stirring air cavity second connecting hole 9 which is communicated to the air supply pipe column 13 is arranged in the tailstock 1.
Preferably, the rotary air supply branch includes a rotary air chamber connecting hole 6 provided in the tailstock 1 and communicating to the rotary air chamber 15.
Preferably, an water inlet annulus 10 is arranged between the outer side wall of the rotator 2 inside the tailstock 1 and the inner side wall of the tailstock 1, the water inlet annulus 10 is communicated with a hydraulic jet pipeline 11 arranged inside the rotator 2, and a water inlet hole 7 communicated to the water inlet annulus 10 is arranged on the tailstock 1.
Preferably, as shown in fig. 8, when the injection tool of the application is installed in a shaft, the injection tool is fixed on the wall of the shaft by adopting a fixer 31, the liquid cavity second connecting hole 8 is connected with a toggle device pressure controller 26 for controlling the pressure in the liquid cavity 25, the rotary air cavity connecting hole 6 is connected with a rotary air cavity pressure controller 27 for controlling the pressure in the rotary air cavity 15, the toggle air cavity second connecting hole 9 is connected with a toggle air cavity pressure controller 28 for controlling the pressure in the toggle air cavity 23, the water inlet hole 7 is connected with a hydraulic jet controller 29, and the hydraulic jet controller 29 is connected with an injection water flow supply system 30.
The toggle device pressure controller 26, the rotary air cavity pressure controller 27, the toggle air cavity pressure controller 28 and the hydraulic jet controller 29 are all connected with a computer.
Preferably, the bottom end of the rotator 2 is uniformly provided with 24 or 12 or 8 or 6 or 4 rotation engagement parts along the circumferential direction.
When 24 rotational engagement portions are provided, azimuth operations of positions of integer multiples of 24×15 °,12×30 °,8×45 °, 6×60 °,4×90 °,3×120 °,2×180 °, and other 15 ° can be performed;
when 12 rotational engagement portions are provided, azimuth work of positions of 12×30 °,6×60 °,4×90 °,3×120 °,2×180 °, and other 30 ° integer multiples can be performed;
When 8 rotational engagement portions are provided, azimuth operations of 8×45 °,4×90 °,2×180 °, and other 45 ° integer multiple positions can be performed;
When the number of the rotary engagement parts is 6, the azimuth operation of 6×60 °,3×120 °,2×180 ° can be performed;
when 4 rotary engagement parts are provided, 4×90 DEG, 2×180 DEG azimuth operation can be performed;
in this case, an explanation is given by taking 4×90° as an example, which means that the hydraulic jetting operation of four radial wells can be performed, and the included angle between the four radial wells is 90 °.
The semi-automatic pneumatic directional hydraulic jetting tool for the downhole radial well has the following azimuth conversion process:
When the water spraying hole 12 corresponds to the current azimuth angle, that is, the rotator 2 is at the current working position, as shown in (a) of fig. 9, the first inclined surface 161 of the rotary engagement tooth 16 is in contact engagement with the fourth inclined surface 191 of the guide rib 19, the high end of the first inclined surface 161 is consistent with the high end of the fourth inclined surface 191, and the reset tooth 17 and the toggle tooth 18 are arranged in up-down alignment and a gap is reserved between the reset tooth and the toggle tooth;
Then the pressure controller 26 of the poking device controls the pressure in the liquid cavity 25 to rise, and the poking device 4 and the rotator 2 are pushed upwards, and in the process of upwards moving the poking device 4 and the rotator 2, the air pressure in the poking air cavity 23 and the rotating air cavity 15 is raised;
When the toggle 4 and the rotator 2 move up to the upper end of the fourth inclined surface 191 on the guide rib 19 to be aligned with the lower end of the third inclined surface 181, as shown in (b) of fig. 9, the air pressure of the rotating air cavity 15 drives the second inclined surface 171 of the reset tooth 17 to slide along the combined third inclined surface 181 and fourth inclined surface 191 to realize the first rotation of the rotator 2, and after the rotator 2 rotates for the first time, the second inclined surface 171 is in contact engagement with the fourth inclined surface 191 as shown in (c) of fig. 9, and the upper end of the toggle tooth 18 is positioned in the reset groove 14;
When the shifter 4 moves down to align the high end of the third inclined surface 181 on the shifting tooth 18 with the low end of the first inclined surface 161 on the rotary engagement tooth 16, as shown in (d) of fig. 9, the air pressure of the rotary air cavity 15 drives the first inclined surface 161 to slide along the third inclined surface 181 to realize the second rotation of the rotator 2, and after the rotator 2 rotates for the second time, as shown in (e) of fig. 9, the third inclined surface 181 of the shifting tooth 18 is engaged with the first inclined surface 161 of the corresponding rotary engagement tooth 16, and the low end of the third inclined surface 181 is consistent with the low end of the first inclined surface 161, and the upper end of the guide rib 19 is positioned in the reset groove 14;
Then the pressure controller 26 of the poking device controls the pressure in the liquid cavity 25 to rise, and the poking device 4 and the rotator 2 are pushed upwards, and in the process of upwards moving the poking device 4 and the rotator 2, the air pressure in the poking air cavity 23 and the rotating air cavity 15 is raised;
When the toggle 4 and the rotator 2 move up to the upper end of the fourth inclined surface 191 on the guide rib 19 to be aligned with the lower end of the third inclined surface 181, as shown in (f) of fig. 9, the air pressure of the rotating air cavity 15 drives the first inclined surface 161 of the rotating engagement tooth 16 to slide along the combined third inclined surface 181 and fourth inclined surface 191 to realize the third rotation of the rotator 2, and after the rotator 2 rotates for the third time, as shown in (g) of fig. 9, the third inclined surface 181 and the fourth inclined surface 191 are respectively engaged with the corresponding first inclined surface 161;
When the driver 4 moves down to align the high end of the third inclined surface 181 on the driver tooth 18 with the low end of the second inclined surface 171 on the reset tooth 17, as shown in (h) of fig. 9, the air pressure of the rotating air chamber 15 causes the second inclined surface 171 to slide along the third inclined surface 181 and the first inclined surface 161 to slide along the fourth inclined surface 191 to realize the fourth rotation of the rotator 2, and after the fourth rotation of the rotator 2, the first inclined surface 161 is in contact engagement with the fourth inclined surface 191 and the second inclined surface 171 is in contact engagement with the third inclined surface 181, as shown in (i) of fig. 9;
the pressure controller 26 of the shifter controls the pressure in the liquid cavity 25 to be reduced, and the shifter 4 moves downwards under the action of the air pressure of the shifter air cavity 23, so that the reset teeth 17 and the shifter teeth 18 are arranged up and down in an aligned manner with a gap left between them, and the water spraying hole 12 on the rotator 2 rotates to a position corresponding to the next azimuth angle to reach the next working position, as shown in (j) in fig. 9.
The conversion from the current azimuth angle to the next azimuth angle can be realized by repeating the operation.
The semiautomatic directional hydraulic jetting tool for the downhole radial well can realize fixed-angle rotation in the circumferential direction, the directional angle rigidly and circularly rotates, and no superposition error is caused, so that the directional hydraulic jetting function is finished, and the operation is simple and convenient.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (5)
1. The semiautomatic pneumatic directional hydraulic jetting tool for the downhole radial well is characterized by comprising a tailstock, a rotator, a fixed sliding sleeve, a toggle device and a top cover which are coaxially arranged;
The upper part of the rotator is sleeved in the inner hole of the tailstock, the rotator can rotate around the axis and axially move relative to the tailstock, and a plurality of rotary meshing parts are uniformly arranged at the bottom end of the rotator along the circumferential direction;
The bottom end of the fixed sliding sleeve is fixedly connected with the top cover;
The poking device is axially matched in the fixed sliding sleeve in a sliding manner, and a plurality of poking matching parts corresponding to the rotary meshing parts are uniformly arranged at the top end of the poking device along the circumferential direction;
a liquid cavity is arranged between the bottom end of the poking device and the top end of the top cover, and the liquid cavity is connected with the liquid supply branch;
a poking air cavity is arranged between the outer side wall of the lower part of the poking device and the inner side wall of the fixed sliding sleeve, and the poking air cavity is connected with a poking air supply branch;
a rotary air cavity is arranged between the top end of the rotator and the inner wall of the tailstock, and is connected with a rotary air supply branch;
The outer side wall of the rotator, which extends out of the tailstock, is provided with a water spraying hole, and the water spraying hole is connected with a hydraulic spraying pipeline;
The rotary meshing part comprises rotary meshing teeth, reset teeth and reset grooves which are sequentially arranged along the circumferential direction, the bottom end surface of each rotary meshing tooth is a first inclined surface, the bottom end surface of each reset tooth is a second inclined surface, and the first inclined surfaces and the second inclined surfaces are arranged in parallel;
The high end of the first inclined surface is connected with the low end of the second inclined surface through a vertical surface extending along the axial direction, the high end of the second inclined surface extends to the corresponding side wall of the adjacent reset groove, and the low end of the first inclined surface extends to the corresponding side wall of the adjacent reset groove;
the stirring matching part comprises stirring teeth, guide ribs and guide grooves, wherein the top end surface of the stirring teeth is a third inclined surface which can be matched with the first inclined surface and the second inclined surface, and the top end surface of the guide ribs is a fourth inclined surface which can be matched with the first inclined surface and the second inclined surface;
the lower end of the third inclined surface extends to the corresponding side wall of the adjacent guide groove, the higher end of the third inclined surface is connected with the horizontal surface of the toggle device through a vertical surface extending along the axial direction, and the other end of the horizontal surface is vertically connected with the corresponding side wall of the adjacent guide groove;
the guide ribs are in sliding fit in the guide grooves along the axial direction, and are fixedly connected with the fixed sliding sleeve;
the liquid supply branch comprises a liquid cavity first connecting hole which is arranged in the fixed sliding sleeve and communicated with the liquid cavity, a liquid supply pipe column which is communicated with the liquid cavity first connecting hole is arranged between the fixed sliding sleeve and the tailstock, and a liquid cavity second connecting hole which is communicated with the liquid supply pipe column is arranged in the tailstock;
the stirring air supply branch comprises a stirring air cavity first connecting hole which is arranged in the fixed sliding sleeve and communicated with the stirring air cavity, an air supply pipe column which is communicated with the stirring air cavity first connecting hole is arranged between the fixed sliding sleeve and the tailstock, and a stirring air cavity second connecting hole which is communicated with the air supply pipe column is arranged in the tailstock;
The rotary air supply branch comprises a rotary air cavity connecting hole which is arranged in the tailstock and communicated with the rotary air cavity.
2. The downhole radial well semiautomatic directional hydraulic jetting tool as set forth in claim 1, wherein the length of the radially outer wall surface of the rotary engagement tooth in the circumferential direction is twice the length of the radially outer wall surface of the reset tooth in the circumferential direction, and the length of the radially outer wall surface of the reset tooth in the circumferential direction is identical to the length of the reset groove in the circumferential direction of the radially outer wall surface of the rotator;
The length of the radial outer wall surfaces of the poking teeth and the guide ribs along the circumferential direction is consistent with the length of the radial outer wall surfaces of the reset teeth along the circumferential direction.
3. The downhole radial well semiautomatic directional hydraulic jetting tool as set forth in claim 1, wherein a water inlet annulus is provided between the outer side wall of the rotator and the inner side wall of the tailstock, the water inlet annulus is communicated with a hydraulic jetting pipeline provided in the rotator, and a water inlet hole communicated to the water inlet annulus is provided in the tailstock.
4. The downhole radial well semiautomatic directional hydraulic jetting tool as claimed in claim 3, wherein the second connection hole of the hydraulic chamber is connected with a toggle pressure controller for controlling the pressure in the hydraulic chamber, the connection hole of the rotary air chamber is connected with a rotary air chamber pressure controller for controlling the pressure in the rotary air chamber, the second connection hole of the toggle air chamber is connected with a toggle air chamber pressure controller for controlling the pressure in the toggle air chamber, the water inlet hole is connected with a hydraulic jet controller, and the hydraulic jet controller is connected with a jet water flow supply system.
5. The downhole radial well semiautomatic directional hydraulic jetting tool as set forth in claim 1, wherein the bottom end of the rotator is uniformly provided with 24 or 12 or 8 or 6 or 4 rotary engagement parts along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411321875.1A CN118835927B (en) | 2024-09-23 | 2024-09-23 | Semi-automatic pneumatic directional hydraulic jetting tool for downhole radial well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411321875.1A CN118835927B (en) | 2024-09-23 | 2024-09-23 | Semi-automatic pneumatic directional hydraulic jetting tool for downhole radial well |
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| Publication Number | Publication Date |
|---|---|
| CN118835927A CN118835927A (en) | 2024-10-25 |
| CN118835927B true CN118835927B (en) | 2024-12-10 |
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| CN202411321875.1A Active CN118835927B (en) | 2024-09-23 | 2024-09-23 | Semi-automatic pneumatic directional hydraulic jetting tool for downhole radial well |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| DE20313430U1 (en) * | 2003-08-29 | 2005-01-27 | Z. Industries Gmbh | High-pressure injection system for introducing an injection fluid into a ground surrounding a borehole comprises a high-pressure injection nozzle whose position is radially adjustable outside the drilling pipe |
| US8991522B2 (en) * | 2010-02-25 | 2015-03-31 | Coiled Tubing Specialties, Llc | Downhole hydraulic jetting assembly, and method for stimulating a production wellbore |
| CN102536121B (en) * | 2012-02-08 | 2013-12-18 | 中国石油大学(北京) | Pulse type underground pressurization jet flow drilling method and device |
| CN202611590U (en) * | 2012-06-05 | 2012-12-19 | 中国石油化工股份有限公司 | Hydro-jet radial drilling wellhead azimuth angle adjustment special tool |
| CN105507814B (en) * | 2016-01-22 | 2017-09-29 | 廊坊开发区中油化油气技术服务有限公司 | Water-jet drilling equipment and its process are conveyed for coal bed gas well coiled tubing |
| CN108547604B (en) * | 2018-06-20 | 2023-04-11 | 河南理工大学 | Drilling and stamping integrated device and method |
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| CN112647904B (en) * | 2020-12-24 | 2022-10-11 | 中国石油大学(华东) | Horizontal underground phase sand blasting perforation unblocking tool |
| CN115704281A (en) * | 2021-08-17 | 2023-02-17 | 中石化石油工程技术服务有限公司 | Wellhead device for high-energy injection branch well and using method thereof |
| CN117386292A (en) * | 2022-07-05 | 2024-01-12 | 中国石油化工股份有限公司 | Electrohydraulic integrated orientation tool for coiled tubing drilling machine |
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| CN1051956A (en) * | 1989-11-08 | 1991-06-05 | 哈利伯顿公司 | Downhole jetting tool |
| CN107227948A (en) * | 2017-05-19 | 2017-10-03 | 中国石油集团川庆钻探工程有限公司 | Method for controlling underground directional hydraulic jet tool on ground |
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