CN215632827U - All-metal vibration antifriction tool - Google Patents
All-metal vibration antifriction tool Download PDFInfo
- Publication number
- CN215632827U CN215632827U CN202121113483.8U CN202121113483U CN215632827U CN 215632827 U CN215632827 U CN 215632827U CN 202121113483 U CN202121113483 U CN 202121113483U CN 215632827 U CN215632827 U CN 215632827U
- Authority
- CN
- China
- Prior art keywords
- spline
- shell
- valve body
- vibration
- transmission shaft
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 43
- 230000000737 periodic effect Effects 0.000 abstract description 12
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000035485 pulse pressure Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses an all-metal vibration antifriction tool, and relates to the technical field of oil and gas exploitation equipment. The utility model comprises a lower joint, an outer barrel, a vibration shell, a spline shaft and a spline shell, wherein a transmission shaft is arranged in the outer barrel, a movable valve body is arranged at one end of the transmission shaft, a fixed valve body is fixedly arranged between the transmission shaft and the lower joint, and overflowing holes are formed in the movable valve body and the fixed valve body; the transmission shaft is provided with a turbine assembly; the spline shaft penetrates through the spline shell and the vibration shell, the front end of the spline shaft is provided with a piston, and an elastic piece for limiting the axial reset of the spline shaft is arranged in the vibration shell; the spline shaft is internally provided with a fluid channel, and the piston is provided with an opening communicated with the fluid channel. The utility model is arranged at the appointed position of a drill stem, and utilizes the drilling fluid to generate periodic pulse pressure waves to form axial high-frequency vibration, and the vibration force finally acts on the drilling tool assembly to convert the static friction between the drilling tool assembly and the well wall into dynamic friction, thereby reducing the friction resistance and improving the extension capability of the drilling tool assembly.
Description
Technical Field
The utility model relates to the technical field of oil and gas exploitation equipment, in particular to an all-metal vibration antifriction tool aiming at friction reduction and drag reduction technologies of horizontal wells and highly deviated wells.
Background
The difficulty of drilling and developing petroleum and natural gas is increasing along with the shortage of resources, and how to improve the drilling quality, the drilling efficiency and reduce the drilling cost becomes one of the important problems which need to be solved urgently at present. However, due to the limitation of drilling geological environment, the vertical well drilling technology is not suitable for complex regional conditions, meanwhile, the drilling technology with high difficulty and the drilling technology emerge and are widely applied to oil fields, and special wells such as horizontal wells, highly deviated wells and the like are more and more, so that the oil-gas exploration and development speed is accelerated, the drilling technology level is improved, and remarkable economic and social benefits are brought.
However, with the continuous development of horizontal wells and highly deviated wells, the following problems are often encountered in the construction process: if the drillability of the rock is poor, the collapse pressure is high, and the construction difficulty is high; the designed track has large inclination angle, large friction torque in the construction process and high requirement on drilling equipment, and the excessive friction torque can possibly cause fatigue damage of a downhole drilling tool, reduce the strength of a drill rod and the lifting capacity of a drilling machine and make the track control extremely difficult; the bent drill string frequently collides with the well wall in the rotating process to generate larger friction torque, so that the transmission of the axial load of the drill string is influenced, the well wall pressure is serious, and the effective drilling pressure and the effective torque transmitted to a drill bit are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an all-metal vibration antifriction tool which is used for generating a vibration effect and converting static friction between a pipe column and a well wall into dynamic friction so as to reduce friction resistance torque between the drilling pipe column and the well wall. The vibration antifriction tool is arranged at the designated position of a drill column, periodic pulse pressure waves are generated by drilling fluid to form axial high-frequency vibration, and the vibration force finally acts on a drilling tool assembly to convert static friction between the drilling tool assembly and a well wall into dynamic friction, so that friction resistance is reduced, and the extension capacity of the drilling tool assembly is improved.
In order to solve the problems in the prior art, the utility model is realized by the following technical scheme:
an all-metal vibration antifriction tool comprises a lower joint, an outer barrel, a vibration shell, a spline shaft and a spline shell, wherein the lower joint is in threaded connection with one end of the outer barrel; the outer circumferential surface of the transmission shaft is connected with a turbine assembly, and the turbine assembly is fixed with the transmission shaft; the other end of the outer cylinder is in threaded connection with one end of the vibration shell, and the other end of the vibration shell is connected with the spline shell; the spline shaft is arranged in the spline shell and the vibration shell in a penetrating mode, one end of the spline shaft extends into the outer barrel, and the other end of the spline shaft extends out of the spline shell; a piston is arranged at the end part of the spline shaft extending into the outer barrel, a cylinder sleeve is arranged in the outer barrel corresponding to the piston, and the piston moves axially in the cylinder sleeve; an elastic piece for limiting the axial resetting of the spline shaft is arranged in the vibration shell; a fluid channel for fluid to pass through is arranged in the spline shaft, and an opening communicated with the fluid channel in the spline shaft is arranged on the piston.
In the process of well drilling operation, the all-metal vibration antifriction tool is arranged at the designated position of a drill column, a spline shaft is connected with an upper drilling tool through threads, and a lower joint is connected with a lower drilling tool assembly through threads. The drilling fluid passes through the interior of the drill rod and the fluid channel of the spline shaft, then passes through the opening on the piston, enters the turbine component in the outer barrel, then flows through the movable valve body and the fixed valve body, and finally enters the lower drilling tool assembly through the lower joint. When drilling fluid flows through turbine assembly, drive turbine assembly begins to rotate, drive transmission shaft and the traveling valve of lower part rotate together simultaneously, the rotatory in-process of traveling valve, the area of overflowing of valve is decided relatively produces periodic variation, thereby produce periodic pulse pressure wave, the pressure wave transmits upper portion piston end face through inside fluid, produce periodic impact to the piston, drive integral key shaft upward movement compresses the elastic component simultaneously, when periodic impact weakens, the integral key shaft resumes initial position under the effect of elastic component elastic force, produce the periodic motion of cycle from this, thereby form axial high frequency vibrations. The vibration force finally acts on the drilling tool assembly, so that the drilling tool assembly generates static friction between the drilling tool assembly and the well wall and is converted into dynamic friction, friction resistance is further reduced, and the extension capacity of the drilling tool assembly is improved.
An installation cavity for accommodating the elastic piece is formed between the vibration shell and the outer wall of the spline shaft, and one end of the elastic piece, which is close to the piston, is limited by a step on the outer wall of the spline shaft; one end of the elastic piece close to the spline shell is limited by the spline shell in threaded connection with the vibration shell.
The step on the outer wall of the spline shaft is formed by the end face of a limiting sleeve arranged on the spline shaft; and a limiting step for limiting the axial movement amount of the spline shaft is arranged in the vibration shell, and a limiting step matched with the limiting step is arranged on the limiting sleeve.
A step for limiting the turbine assembly is arranged on the side wall of one end, close to the movable valve body, of the transmission shaft, and a locking nut is mounted at the other end of the transmission shaft; the locking nut is matched with a step on the side wall of one end, close to the movable valve body, of the transmission shaft to fix the turbine assembly on the transmission shaft.
The locking nut, the transmission shaft and the outer barrel are coaxial, and the end part of the locking nut is installed in the outer barrel through a bearing.
A fluid cavity is formed in one end, close to the movable valve body, of the transmission shaft, a through hole is formed in the side wall of the fluid cavity, and an overflow control on the movable valve body is communicated with the fluid cavity; the fluid that flows through turbine assembly gets into through-hole the fluid chamber, the fluid that flows through the fluid chamber is through the discharge orifice on the movable valve body and the discharge orifice of fixed valve body after, by the lower clutch outflow.
The spline shaft and the spline shell are installed in a matched mode through a spline.
The elastic piece is a disc spring.
The outer contour of the fixed valve body is a regular hexagon.
The shape of the overflowing hole on the fixed valve body is the same as that of the overflowing hole on the movable valve body.
Compared with the prior art, the beneficial technical effects brought by the utility model are as follows:
1. the utility model has the beneficial effects that: the safety and reliability are realized, the stability is good, and all metal parts are not limited by temperature; the requirement of the tool on equipment is low, and the working pressure of the tool is reduced; the vibration frequency is high, the using effect is good, axial vibration is generated, the friction mode between the drilling tool and the well wall is changed, the pressure is reduced, and the effectiveness of bit pressure transmission is improved.
2. The maximum outer diameter of the lower joint, the outer cylinder, the vibration shell and the spline shell are the same. The condition that the friction is increased due to different outer diameters is avoided, and the blockage is avoided.
3. According to the utility model, the mounting cavity is formed between the vibration shell and the outer wall of the spline shaft, so that the elastic part deforms in the mounting cavity, the situation that the elastic part deflects after being used for a long time is avoided, and the disassembly and the assembly are convenient.
4. The turbine assembly is fixed on the transmission shaft by matching the step on the transmission shaft and the locking nut, so that the turbine assembly is convenient to disassemble and simple to assemble.
5. In the utility model, the outer contour of the fixed valve body is regular hexagon to prevent relative rotation, and the surfaces of the fixed valve body and the movable valve body are subjected to special hardening treatment.
Drawings
FIG. 1 is a schematic view of the interface of the all-metal vibration antifriction tool of the present invention;
FIG. 2 is a schematic structural diagram of a fixed valve body in the all-metal vibration antifriction tool of the present invention;
FIG. 3 is a schematic structural diagram of a movable valve body in the all-metal vibration antifriction tool of the present invention;
reference numerals: 1. the device comprises a lower connector, 2, a fixed valve body, 3, a movable valve body, 4, an outer barrel, 5, a turbine assembly, 6, a transmission shaft, 7, a locking nut, 8, a cylinder sleeve, 9, a piston, 10, a spline shaft, 11, an elastic part, 12, a vibration shell, 13 and a spline shell.
Detailed Description
The technical scheme of the utility model is further elaborated in the following by combining the drawings in the specification. Here, the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to the attached drawing 1 of the specification, the embodiment discloses an all-metal vibration antifriction tool, which comprises a lower joint 1, an outer cylinder 4, a vibration shell 12, a spline shaft 10 and a spline shell 13, wherein the lower joint 1 is in threaded connection with one end of the outer cylinder 4, a transmission shaft 6 is installed in the outer cylinder 4, a movable valve body 3 which rotates through the transmission shaft 6 is installed at one end, close to the lower joint 1, of the transmission shaft 6, a fixed valve body 2 is fixedly arranged between the transmission shaft 6 and the lower joint 1, and as shown in fig. 2 and 3, overflowing holes are formed in the movable valve body 3 and the fixed valve body 2; the outer circumferential surface of the transmission shaft 6 is connected with a turbine assembly 5, and the turbine assembly 5 is fixed with the transmission shaft 6; the other end of the outer cylinder 4 is in threaded connection with one end of the vibration shell 12, and the other end of the vibration shell 12 is connected with the spline shell 13; the spline shaft 10 is arranged in the spline shell 13 and the vibration shell 12 in a penetrating way, one end of the spline shaft 10 extends into the outer barrel 4, and the other end of the spline shaft extends out of the spline shell 13; a piston 9 is arranged at the end part of the spline shaft 10 extending into the outer cylinder 4, a cylinder sleeve 8 is arranged in the outer cylinder 4 corresponding to the piston 9, and the piston 9 axially moves in the cylinder sleeve 8; an elastic piece 11 for limiting the axial resetting of the spline shaft 10 is arranged in the vibration shell 12; a fluid channel for fluid to pass through is arranged inside the spline shaft 10, and an opening communicated with the fluid channel inside the spline shaft 10 is arranged on the piston 9.
In the process of well drilling operation, the all-metal vibration antifriction tool is arranged at the designated position of a drill column, the spline shaft 10 is connected with an upper drilling tool through threads, and the lower joint 1 is connected with a lower drilling tool assembly through threads. The drilling fluid passes through the interior of the drill rod and the spline shaft 10, is subjected to fluid passage, then passes through the opening on the piston 9, enters the turbine assembly 5 in the outer cylinder 4, then passes through the movable valve body 3 and the fixed valve body 2, and finally enters the lower drilling tool assembly through the lower connector 1. When drilling fluid flows through turbine assembly 5, drive turbine assembly 5 begins to rotate, it is rotatory with the moving valve of lower part to drive transmission shaft 6 simultaneously, the rotatory in-process of moving valve, the area of overflowing of valve relatively produces periodic variation, thereby produce periodic pulse pressure wave, the pressure wave passes through inside fluid and transmits upper portion piston 9 terminal surface, produce periodic impact to piston 9, drive integral key shaft 10 upward movement compresses elastic component 11 simultaneously, when periodic impact weakens, integral key shaft 10 resumes initial position under the effect of elastic component 11 elasticity, produce the periodic motion of cycle from this, thereby form axial high frequency vibrations. The vibration force finally acts on the drilling tool assembly, so that the drilling tool assembly generates static friction between the drilling tool assembly and the well wall and is converted into dynamic friction, friction resistance is further reduced, and the extension capacity of the drilling tool assembly is improved.
Furthermore, as shown in fig. 1, a mounting cavity for accommodating the elastic member 11 is formed between the vibration shell 12 and the outer wall of the spline shaft 10, and one end of the elastic member 11 close to the piston 9 is limited by a step on the outer wall of the spline shaft 10; one end of the elastic piece 11 close to the spline housing 13 is limited by the spline housing 13 which is in threaded connection with the vibration housing 12. The step on the outer wall of the spline shaft 10 is formed by the end face of a limiting sleeve arranged on the spline shaft 10; and a limiting step for limiting the axial movement amount of the spline shaft 10 is arranged in the vibration shell 12, and a limiting step matched with the limiting step is arranged on the limiting sleeve.
Furthermore, a step for limiting the turbine assembly 5 is arranged on the side wall of one end, close to the movable valve body 3, of the transmission shaft 6, and a locking nut 7 is arranged at the other end of the transmission shaft 6; the locking nut 7 is matched with a step on the side wall of one end, close to the movable valve body 3, of the transmission shaft 6 to fix the turbine assembly 5 on the transmission shaft 6. The locking nut 7, the transmission shaft 6 and the outer barrel 4 are coaxial, and the end part of the locking nut 7 is installed in the outer barrel 4 through a bearing.
A fluid cavity is formed in one end, close to the movable valve body 3, of the transmission shaft 6, a through hole is formed in the side wall of the fluid cavity, and the overflow control on the movable valve body 3 is communicated with the fluid cavity; the fluid flowing through the turbine assembly 5 enters the fluid cavity through the through hole, and the fluid flowing through the fluid cavity flows out from the lower connector 1 after passing through the overflowing hole in the movable valve body 3 and the overflowing hole in the fixed valve body 2. The spline shaft 10 and the spline housing 13 are mounted in spline fit. The elastic member 11 is a disc spring. The external profile of the fixed valve body 2 is a regular hexagon, so that relative rotation is prevented. The shape of the overflowing hole on the fixed valve body 2 is the same as that of the overflowing hole on the movable valve body 3.
Claims (10)
1. An all-metal vibration antifriction tool, characterized in that: the gear transmission device comprises a lower connector (1), an outer barrel (4), a vibrating shell (12), a spline shaft (10) and a spline shell (13), wherein the lower connector (1) is in threaded connection with one end of the outer barrel (4), a transmission shaft (6) is installed in the outer barrel (4), a movable valve body (3) rotating with the transmission shaft (6) is installed at one end, close to the lower connector (1), of the transmission shaft (6), a fixed valve body (2) is fixedly arranged between the transmission shaft (6) and the lower connector (1), and overflowing holes are formed in the movable valve body (3) and the fixed valve body (2); the outer circumferential surface of the transmission shaft (6) is connected with a turbine assembly (5), and the turbine assembly (5) is fixed with the transmission shaft (6); the other end of the outer cylinder (4) is in threaded connection with one end of the vibration shell (12), and the other end of the vibration shell (12) is connected with the spline shell (13); the spline shaft (10) is arranged in the spline shell (13) and the vibration shell (12) in a penetrating mode, one end of the spline shaft (10) extends into the outer barrel (4), and the other end of the spline shaft extends out of the spline shell (13); a piston (9) is arranged at the end part of the spline shaft (10) extending into the outer cylinder (4), a cylinder sleeve (8) is arranged in the outer cylinder (4) corresponding to the piston (9), and the piston (9) axially moves in the cylinder sleeve (8); an elastic piece (11) for limiting the axial resetting of the spline shaft (10) is arranged in the vibration shell (12); a fluid channel for fluid to pass through is arranged in the spline shaft (10), and an opening communicated with the fluid channel in the spline shaft (10) is arranged on the piston (9).
2. An all-metal vibration antifriction tool in accordance with claim 1, wherein: an installation cavity for accommodating the elastic piece (11) is formed between the vibration shell (12) and the outer wall of the spline shaft (10), and one end, close to the piston (9), of the elastic piece (11) is limited by a step on the outer wall of the spline shaft (10); one end of the elastic piece (11) close to the spline shell (13) is limited by the spline shell (13) in threaded connection with the vibration shell (12).
3. An all-metal vibration antifriction tool in accordance with claim 2, wherein: the step on the outer wall of the spline shaft (10) is formed by the end face of a limiting sleeve arranged on the spline shaft (10); and a limiting step for limiting the axial movement amount of the spline shaft (10) is arranged in the vibration shell (12), and a limiting step matched with the limiting step is arranged on the limiting sleeve.
4. An all-metal vibration antifriction tool according to any one of claims 1 to 3, characterized in that: a step for limiting the turbine assembly (5) is arranged on the side wall of one end, close to the movable valve body (3), of the transmission shaft (6), and a locking nut (7) is mounted at the other end of the transmission shaft (6); the locking nut (7) is matched with a step on the side wall of one end, close to the movable valve body (3), of the transmission shaft (6) to fix the turbine assembly (5) on the transmission shaft (6).
5. An all-metal vibration antifriction tool in accordance with claim 4, wherein: the locking nut (7), the transmission shaft (6) and the outer barrel (4) are coaxial, and the end part of the locking nut (7) is installed in the outer barrel (4) through a bearing.
6. An all-metal vibration antifriction tool according to any one of claims 1 to 3, characterized in that: a fluid cavity is formed in one end, close to the movable valve body (3), of the transmission shaft (6), a through hole is formed in the side wall of the fluid cavity, and the overflow control on the movable valve body (3) is communicated with the fluid cavity; the fluid flowing through the turbine assembly (5) enters the fluid cavity through the through hole, and the fluid flowing through the fluid cavity flows out of the lower connector (1) through the overflowing hole in the movable valve body (3) and the overflowing hole in the fixed valve body (2).
7. An all-metal vibration antifriction tool in accordance with claim 1, wherein: the spline shaft (10) and the spline shell (13) are installed in a spline fit mode.
8. An all-metal vibration antifriction tool in accordance with claim 1, wherein: the elastic piece (11) is a disc spring.
9. An all-metal vibration antifriction tool in accordance with claim 1, wherein: the outer contour of the fixed valve body (2) is a regular hexagon.
10. An all-metal vibration antifriction tool in accordance with claim 1, wherein: the shape of the overflowing hole on the fixed valve body (2) is the same as that of the overflowing hole on the movable valve body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121113483.8U CN215632827U (en) | 2021-05-24 | 2021-05-24 | All-metal vibration antifriction tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121113483.8U CN215632827U (en) | 2021-05-24 | 2021-05-24 | All-metal vibration antifriction tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215632827U true CN215632827U (en) | 2022-01-25 |
Family
ID=79939197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121113483.8U Active CN215632827U (en) | 2021-05-24 | 2021-05-24 | All-metal vibration antifriction tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215632827U (en) |
-
2021
- 2021-05-24 CN CN202121113483.8U patent/CN215632827U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106639944B (en) | A kind of turbine type downhole hydraulic oscillator | |
| CN105672885B (en) | Turbo-power formula double acting hydraulic oscillation drag reduction drilling tool | |
| CN107435520B (en) | Hydraulic oscillator powered by rotating wheel | |
| CN109667536B (en) | High-frequency torsional vibration viscosity reduction tool | |
| WO2019061617A1 (en) | Negative pressure pulse oscillator | |
| CN202990851U (en) | Screw type high-frequency percussion drilling tool | |
| CN102913165B (en) | Well-drilling downhole turbine-drive while-drilling vibrator | |
| CN107605396B (en) | A kind of shunt penetrates suction hydraulic impacter | |
| CN109779520A (en) | A kind of pulse type spiral percussion drilling tool | |
| CN110374508A (en) | A kind of underbalance pulse oscillation tool | |
| CN109707313A (en) | Vane type multiple-pulse hydroscillator | |
| CN205558849U (en) | Utilize turbine to produce downhole tool of shock oscillation | |
| CN109611028B (en) | Hydraulic oscillator based on roller and impeller | |
| CN215632827U (en) | All-metal vibration antifriction tool | |
| CN203321322U (en) | Friction resistance reducing tool capable of extending drilling footage | |
| CN208203155U (en) | The reciprocating absorbing tool of external spring | |
| CN108643824B (en) | Hydraulic vibration-damping impact drilling tool | |
| CN109538124B (en) | Inclined plane type impeller hydraulic oscillator | |
| CN107246238B (en) | Integrated impact downhole power drilling tool | |
| CN114809922B (en) | Jet impact type oscillator with adjustable frequency | |
| CN205778542U (en) | A kind of hydroscillator | |
| CN115405222A (en) | High-frequency composite impactor | |
| CN210460503U (en) | Double-pressure-cavity screw drilling tool of resistance-reducing vibrator | |
| CN111188576B (en) | Hydraulic oscillator with low energy consumption | |
| CN108301787A (en) | The reciprocating absorbing tool of external spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |