CN109538124B - Inclined plane type impeller hydraulic oscillator - Google Patents
Inclined plane type impeller hydraulic oscillator Download PDFInfo
- Publication number
- CN109538124B CN109538124B CN201910015309.0A CN201910015309A CN109538124B CN 109538124 B CN109538124 B CN 109538124B CN 201910015309 A CN201910015309 A CN 201910015309A CN 109538124 B CN109538124 B CN 109538124B
- Authority
- CN
- China
- Prior art keywords
- impeller
- shell
- bearing
- shaft
- ball bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims abstract description 50
- 239000012530 fluid Substances 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000000737 periodic effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000035485 pulse pressure Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
-
- 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
- E21B12/00—Accessories for drilling tools
-
- 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
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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 discloses an oscillator which is used for reducing drag and improving mechanical rotating speed in the fields of petroleum drilling and the like. The technical scheme is as follows: the upper joint, the shell and the lower joint are connected through screw threads in sequence; the throttle valve plate is connected with the upper joint through a thread; the throttle valve plate is connected with the cylindrical pin through a locking screw; the cylindrical pin is positioned between the impeller and the throttle valve plate; the impeller shaft, the impeller and the impeller shell are welded into a whole, a string bearing is arranged between the impeller shell and the shell body, the upper end and the lower end of the string bearing are positioned through the inner sleeve and the outer sleeve, the lower end of the impeller shell is contacted with the upper end of the ball bearing, the ball bearing is arranged on the short shaft, and the short shaft and the shell body are fixed on the shell body through threaded connection. The inclined plane type impeller hydraulic oscillator has the advantages of no rubber structure design in the inclined plane type impeller hydraulic oscillator, simple structure, effective reduction of the frictional resistance between the drilling tool at the lower part of the horizontal well and the extended reach well and the well wall, enhancement of the transmission capacity of the bit pressure, and avoidance of underground accidents such as sticking and blocking while improving the drilling efficiency.
Description
Technical Field
The invention belongs to the field of petroleum and natural gas drilling engineering, and relates to a novel downhole tool, in particular to a novel hydraulic oscillator with resistance reduction and speed acceleration functions.
Background
In recent years, with the continuous development of the industry in China, the demand and the production quantity of petroleum and natural gas are increasing day by day. However, in order to alleviate the shortage of petroleum resources in our country, petroleum extraction is beginning to be carried out in fields with severe environmental conditions, such as deep wells and ultra-deep wells. The exploitation of new oil and gas wells leads drilling projects to face more complicated conditions, and corresponding new drilling methods and tools are continuously developed in order to meet the requirements of new drilling conditions or new oil and gas resources (such as coal bed gas, shale gas, ocean oil and gas). In a horizontal well and an extended reach well, along with the increase of the well entry depth, the friction force between a drill string and a well wall is gradually increased to cause the loss of the bit pressure, the improvement of the mechanical drilling speed is not facilitated, the target diameter and the well bore quality of a drilled well are also seriously influenced, and the method is an important factor for restricting the technical development of the horizontal well and the extended reach well. In a method for solving these problems, energy conversion by a mechanically operated downhole tool using a drilling fluid, thereby generating certain expected vibrations, has rapidly developed in recent years. The hydraulic oscillator is introduced into the underground drill stem, so that the drill stem can generate periodic vibration with certain frequency and amplitude, static friction resistance in the feeding process is changed into dynamic friction resistance, and the hydraulic vibration drilling device has obvious advantages in the aspects of reducing friction resistance in the feeding process, improving the mechanical drilling speed, increasing the horizontal footage and shortening the drilling period. The stratum working environment that well drilling engineering faces is complicated, and the well drilling degree of depth is constantly increased, leads to the not high drill bit rock breaking efficiency drill bit when drilling deep well stratum, and the ubiquitous drilling rate is very slow, the cost of well drilling expense is high, and the improvement of well drilling speed lies in how to improve the rock breaking efficiency of drill bit. Meanwhile, the discharge capacity of a drilling well is limited due to overhigh pumping pressure on site, and the mechanical drilling rate and the well cleaning are influenced; and multiple MWD failures, premature PDC bit deactivation and unstable behavior in oil-based muds and high temperatures, and high failure rates may occur.
The invention provides a novel hydraulic oscillator of an inclined-plane impeller, which is designed for solving the existing problems, realizes energy conversion by using drilling fluid, generates axial vibration, acts on a drill bit through a machine body structure, and achieves the purposes of reducing friction and resistance, increasing the effective drilling pressure of the drill bit, improving the mechanical drilling speed, reducing MWD faults, extending the drill string such as well displacement and the like in the drilling process.
Disclosure of Invention
The invention aims to: the novel pulse oscillator is designed for overcoming the defects that the drilling friction of the existing horizontal well and the extended reach well is large, the drilling pressure of a wellhead cannot be effectively transmitted to a drill bit, the rock carrying capacity of drilling fluid is not high, and the using effect of the existing axial vibration tool is not ideal.
In order to achieve the purpose, the invention adopts the technical scheme that: the hydraulic oscillator based on the inclined-plane impeller consists of an upper joint, a throttle valve plate, a cylindrical pin, a locking screw A, an impeller shaft, an impeller shell, a serial bearing, an inner sleeve, an outer sleeve, a shell, a ball bearing, a short shaft, a locking screw B, a bearing end cover and a lower joint, and is characterized in that the upper joint, the shell and the lower joint are connected through a thread in sequence; a through hole is formed in the middle of the throttle valve plate and is connected with the upper joint through a locking screw A; the cylindrical pin is connected with the throttle valve plate and the upper joint through a locking screw A, and the cylindrical pin limits the impeller; the impeller shaft and the impeller are connected with the impeller shell through welding; the impeller shaft is in a stepped shaft shape, the front end of the impeller shaft is welded with a conical head, the lower end of the impeller shaft is connected with the impeller shell through welding, and through axial movement, the change of the drilling fluid flow area is realized, and axial vibration is generated; the sections of the upper end and the lower end of the impeller shell are inclined planes, and a serial bearing is arranged between the impeller shell and the shell body, so that the friction force generated when the impeller shell moves can be reduced; the string bearing is fixed through the inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are clamped between the string bearing and the outer shell to realize positioning; the impeller shell rotates along the ball bearing while rotating to realize axial movement, and the ball bearing rotates along the short shaft; the ball bearing is installed on the minor axis, and the minor axis passes through locking screw B to be connected with shell body, bearing cap, and bearing cap can prevent that mud from getting into ball bearing. The novel hydraulic oscillator of the inclined-plane impeller has the advantages of no rubber structural design in the novel hydraulic oscillator, simple structure, effective reduction of the frictional resistance between the drilling tool at the lower part of the horizontal well and the extended reach well and the well wall, enhancement of the transmission capacity of the bit pressure, and avoidance of underground accidents such as sticking and blocking while improving the drilling efficiency.
Compared with the prior art, the invention has the beneficial effects that: (1) only a small riser pressure is needed to generate axial pulses; (2) the high-frequency vibration effectively overcomes the frictional resistance of a drilling tool at the lower part, realizes the effective transmission of the drilling pressure at the well mouth, improves the mechanical drilling speed, and simultaneously prevents the drilling tool from being attached to the lower well wall for a long time due to the vibration of the tool, thereby avoiding the occurrence of underground accidents such as sticking and blocking. (3) The PDC drill bit has the advantages that a power assembly similar to a motor is omitted, the impeller is used for replacing the PDC drill bit, positive pulse pressure drop can be generated, the drilling speed can be improved, the pump pressure can be reduced, the consumption of the pump is reduced, and the passivation of the PDC drill bit is delayed; (4) the inclined plane type impeller hydraulic oscillator can provide periodic axial impact force with adjustable frequency; (5) has little effect on MWD.
Drawings
Fig. 1 is a schematic structural diagram of a bevel-type impeller oscillator according to the present invention.
In the figure: 1-upper joint, 2-throttle valve plate, 3-cylindrical pin, 4-locking screw A, 5-impeller shaft, 6-impeller, 7-impeller shell, 8-bearing string, 9-inner sleeve, 10-outer sleeve, 11-outer shell, 12-ball bearing, 13-short shaft, 14-locking screw B, 15-bearing end cover and 16-lower joint.
Fig. 2 is a three-dimensional schematic view of a flat key type impeller according to the present invention.
Fig. 3 is a three-dimensional schematic view of a splined impeller according to the present invention.
FIG. 4 is a cross-sectional view of a throttle plate according to the present invention.
In the figure: 2-throttle valve plate, 4-locking screw.
Fig. 5 is a three-dimensional schematic view of an impeller housing according to the present invention.
Fig. 6 is a partial enlarged view of a in fig. 1 according to the present invention, at 6 times magnification.
In the figure, 7-impeller shell; 9-inner sleeve; 10-an outer sleeve; 11-an outer shell; 12-ball bearings; 13-minor axis; 14-locking screw B; 15-bearing end cap.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which: according to the attached drawing 1, the inclined-plane impeller hydraulic oscillator is composed of an upper joint 1, a throttle valve plate 2, a cylindrical pin 3, a locking screw A4, an impeller shaft 5, an impeller 6, an impeller shell 7, a string bearing 8, an inner sleeve 9, an outer sleeve 10, an outer shell 11, a ball bearing 12, a short shaft 13, a locking screw B14, a bearing end cover 15 and a lower joint 16, and is characterized in that the upper joint 1, the outer shell 11 and the lower joint 1 are connected through threads and threads in sequence; the middle of the throttle valve plate 2 is provided with a through hole and is connected with the upper joint 1 through a locking screw A4; the cylindrical pin 3 is connected with the throttle valve plate 2 and the upper joint 1 through a locking screw A4, and the cylindrical pin 3 limits the impeller 6; the impeller shaft 5 and the impeller 6 are connected with the impeller shell 7 through welding; the impeller shaft 5 is in a stepped shaft shape, the front end of the impeller shaft is welded with a conical head, the lower end of the impeller shaft is connected with the impeller shell 7 through welding, and the axial movement of the impeller shaft 5 changes the change of the flow area of drilling fluid in a through hole in the middle of the throttle valve 2 to generate axial vibration; the upper end surface and the lower end surface of the impeller shell 7 are inclined planes, and a serial bearing 8 is arranged between the impeller shell 7 and the outer shell 11, so that the friction force generated when the impeller shell 7 moves can be reduced; the string bearing 8 is positioned through the inner sleeve 9 and the outer sleeve 10, and the inner sleeve 9 and the outer sleeve 10 are clamped between the string bearing 8 and the outer shell 11 to realize positioning; the impeller shell 7 rotates along the ball bearing 12 while rotating, so that axial movement is realized, and meanwhile, the ball bearing 12 rotates along the short shaft 13; the ball bearing 12 is arranged on the short shaft 13, the upper end of the ball bearing is in contact with the impeller shell 7, and the ball bearing can rotate along the short shaft 13 under the action of friction force, so that the contact area with the impeller shell 7 is reduced, and the friction force generated when the impeller shell 7 rotates is reduced; the stub shaft 13 is connected with the outer shell 11 and the bearing end cover 15 through a locking screw B14, and the bearing end cover 15 can prevent mud from entering the ball bearing 12.
In the working process, the lower part of the inclined plane type impeller hydraulic oscillator is connected with a screw power drilling tool to be matched with the screw power drilling tool for use, and the axial vibration is generated to act on the drilling tool at the lower part or a continuous oil pipe tool string, so that the friction resistance is obviously reduced, the bit pressure transmitted to a drill bit is improved, and the drilling and grinding operation of a long horizontal section is realized. The drilling fluid flowing out of the drill pipe directly flows into the hydraulic oscillator from the upper joint 1, and the drilling fluid flowing through the upper joint 1 directly impacts the impeller 6, so that the impeller 6 generates rotary motion and generates certain axial force along with the rotary motion. After the drilling fluid impacts the impeller 6, the impeller 6 drives the impeller shaft 5 and the impeller shell 7 to rotate together to generate hydraulic pulse; the impeller shell 7 rotates along the ball bearing 9 while rotating and is pushed forwards along the borehole of the drilling tool to realize axial movement, meanwhile, the axial movement of the impeller shaft 5 changes the flow area of drilling fluid between the impeller shaft 5 and the throttle valve plate 2, and the periodic fluctuation is generated by the reciprocating movement, and the energy conversion is realized by the drilling fluid to generate axial vibration. The generated axial vibration can obviously reduce the common resistance in the construction of a horizontal section, so that the internal pressure of the tool generates periodic fluctuation, the inclined plane type impeller hydraulic oscillator generates periodic vibration, the rock carrying capacity of the drilling fluid is improved, and the mechanical drilling speed is obviously improved. The inclined plane type impeller hydraulic oscillator is free of rubber structure design, and working stability of the underground tool in high-temperature, oil-based mud and polluted liquid phase environments is greatly improved.
Claims (2)
1. The hydraulic oscillator based on the inclined-plane impeller consists of an upper joint, a throttling valve plate, a cylindrical pin, a locking screw A, an impeller shaft, an impeller shell, a serial bearing, an inner sleeve, an outer sleeve, a shell, a ball bearing, a short shaft, a locking screw B, a bearing end cover and a lower joint, and is characterized in that the upper joint (1), the shell (11) and the lower joint (16) are connected through a thread in sequence; a through hole is formed in the middle of the throttle valve plate (2) and is connected with the upper joint (1) through a locking screw A (4); the cylindrical pin (3) is connected with the throttle valve plate (2) and the upper joint (1) through a locking screw A (4), and the cylindrical pin (3) limits the impeller (6); the impeller shaft (5) and the impeller (6) are connected with the impeller shell (7) through welding; the upper end surface and the lower end surface of the impeller shell (7) are inclined planes, a string bearing (8) is arranged between the impeller shell (7) and the shell body (11), the string bearing (8) is positioned through an inner sleeve (9) and an outer sleeve (10), the impeller shell (7) rotates along a ball bearing (12) while rotating to realize axial movement, and meanwhile, the ball bearing (12) rotates along a short shaft (13); the impeller shaft (5) is in a stepped shaft shape, the front end of the impeller shaft is welded with a conical head, the lower end of the impeller shaft is connected with the impeller shell (7) through welding, the axial movement of the impeller shaft (5) changes the change of the flow area of drilling fluid in the middle through hole of the throttle valve plate (2), and the periodic fluctuation can be generated by the reciprocating movement, the energy conversion is realized by the drilling fluid, and the axial vibration is generated; the ball bearing (12) is installed on the short shaft (13), the short shaft (13) is connected with the outer shell (11) and the bearing end cover (15) through the locking screw B (14), and the bearing end cover (15) can prevent mud from entering the ball bearing (12).
2. The bevel-based impeller hydroscillator of claim 1 wherein: the upper surface and the lower surface of the impeller shell (7) are inclined planes, the impeller shell can rotate along the ball bearing (12) to realize axial movement, and the lower end of the impeller shell is limited by the ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015309.0A CN109538124B (en) | 2019-01-08 | 2019-01-08 | Inclined plane type impeller hydraulic oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015309.0A CN109538124B (en) | 2019-01-08 | 2019-01-08 | Inclined plane type impeller hydraulic oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538124A CN109538124A (en) | 2019-03-29 |
| CN109538124B true CN109538124B (en) | 2020-09-18 |
Family
ID=65834389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910015309.0A Active CN109538124B (en) | 2019-01-08 | 2019-01-08 | Inclined plane type impeller hydraulic oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538124B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404431B (en) * | 2021-06-21 | 2024-07-05 | 中石化石油机械股份有限公司 | Three-dimensional vibration hydraulic oscillator and processing method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202988113U (en) * | 2012-11-19 | 2013-06-12 | 金璐芳 | Novel turning machine roller structure |
| CN103306600B (en) * | 2013-06-27 | 2016-02-10 | 深圳市百勤石油技术有限公司 | The axial instrument that spins of a kind of cam-type |
| US9828802B2 (en) * | 2014-01-27 | 2017-11-28 | Sjm Designs Pty Ltd. | Fluid pulse drilling tool |
| CN205172416U (en) * | 2015-10-30 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Mechanical oscillation strikes transmission shaft |
| CN107420061A (en) * | 2017-09-29 | 2017-12-01 | 西南石油大学 | Underbalance pulse oscillator |
| CN107664013B (en) * | 2017-11-07 | 2023-08-01 | 西南石油大学 | Impeller type axial and circumferential compound impactor |
-
2019
- 2019-01-08 CN CN201910015309.0A patent/CN109538124B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109538124A (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103291214B (en) | Be applicable to the reciprocating hydraulic impacter of hard formation drilling well | |
| CN102587832B (en) | Pressure resistant tool for reducing frictional resistance of horizontal well section | |
| CN106639944B (en) | A kind of turbine type downhole hydraulic oscillator | |
| WO2016150113A1 (en) | Positive displacement motor drill and rock breaking well drilling method therefor | |
| CN202157748U (en) | Pulse impacting device for drilling well | |
| WO2019061617A1 (en) | Negative pressure pulse oscillator | |
| CN106639943B (en) | High frequency reverse reset axial vibration percussion tool | |
| CN108104715B (en) | Torsion impactor based on turbine and gear | |
| CN107435520B (en) | Hydraulic oscillator powered by rotating wheel | |
| CN108468514B (en) | Oscillating device for underground hydraulic oscillator | |
| CN109611028B (en) | Hydraulic oscillator based on roller and impeller | |
| CN104165027A (en) | Three-dimensional turbine vibrator for petroleum drilling | |
| WO2016101387A1 (en) | Disturbance rock-breaking drill tool and disturbance rock-breaking well drilling method | |
| CN103382828A (en) | Two-dimensional hydraulic vibrator used for petroleum drilling | |
| CN104632072B (en) | Underground vibration impact tool based on turbine and double helix ball screw | |
| CN205558849U (en) | Utilize turbine to produce downhole tool of shock oscillation | |
| CN109707313A (en) | Vane type multiple-pulse hydroscillator | |
| CN101581196A (en) | Impacting helicoid hydraulic motor and transmission shaft assembly | |
| CN208010276U (en) | A kind of rotary impact tool of the underground based on magnetic force | |
| CN108049803B (en) | Impeller type differential torque impact device | |
| CN201443299U (en) | Screw drill transmission shaft assembly with impact function | |
| CN109538124B (en) | Inclined plane type impeller hydraulic oscillator | |
| CN112145110B (en) | Hydraulic pulse oscillation device | |
| CN102373885A (en) | Power reamer while drilling for oil and gas well drilling | |
| CN205154007U (en) | Screw drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |