CN118547995A - Ball-throwing starting type multi-head hydraulic oscillator - Google Patents
Ball-throwing starting type multi-head hydraulic oscillator Download PDFInfo
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- CN118547995A CN118547995A CN202410359036.2A CN202410359036A CN118547995A CN 118547995 A CN118547995 A CN 118547995A CN 202410359036 A CN202410359036 A CN 202410359036A CN 118547995 A CN118547995 A CN 118547995A
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- ball
- flexible shaft
- joint
- hydraulic oscillator
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- 239000002131 composite material Substances 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 239000002195 soluble material Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 16
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Multiple-Way Valves (AREA)
Abstract
The invention belongs to the technical field of hydraulic oscillators, and particularly relates to a ball-throwing starting type multi-head hydraulic oscillator which comprises a lower flexible joint, a control valve shell, an adjusting sleeve, a fixed valve, a wear-resistant alloy sleeve, a movable valve seat, a lower flexible shaft joint, a universal shaft shell, a flexible shaft, a pin, an upper flexible shaft joint, a multi-head stator, a hollow multi-head rotor, a soluble composite fracturing ball and an upper flexible joint. The hydraulic oscillation ball throwing is started as required, and the well section which can work by the hydraulic oscillator can be freely started. The hydraulic oscillator is thrown on demand, so that the transmission of the drilling pressure is improved in the drilling of a well section with large friction resistance, the sticking of a drilling tool assembly is reduced, and the directional drilling efficiency is improved; in the section of the well with small friction resistance, the ball-throwing multi-head hydraulic oscillator can not work, so that the effective working time of the hydraulic oscillator in the well is prolonged, the pump consumption is reduced, the cost is lowered, and the efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of hydraulic oscillators, and particularly relates to a ball-throwing starting type multi-head hydraulic oscillator.
Background
The hydraulic oscillator system improves the effectiveness of weight on bit transmission in the drilling process through longitudinal vibration generated by the hydraulic oscillator system and reduces friction between the lower drilling tool assembly and the borehole, which means that the hydraulic impact system can improve the transmission of the weight on bit and reduce torsional vibration in the directional drilling process of the screw drilling tool. With the increasing number of large displacement wells and the increasing horizontal displacement, its drilling mode faces greater challenges. The conventional hydraulic oscillator has the problems of large downhole friction caused by the structure of the hydraulic oscillator, difficult control of a tool face and low drilling efficiency.
Disclosure of Invention
The invention aims to provide a ball-throwing starting type multi-head hydraulic oscillator so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a ball-throwing starting type multi-head hydraulic oscillator comprises a lower flexible joint, a control valve shell, an adjusting sleeve, a fixed valve, a wear-resistant alloy sleeve, a movable valve seat, a lower flexible shaft joint, a universal shaft shell, a flexible shaft, a pin, an upper flexible shaft joint, a multi-head stator, a hollow multi-head rotor, a soluble composite fracturing ball and an upper flexible joint; the adjusting sleeve is arranged in the control valve casing, the fixed valve is arranged on one side of the adjusting sleeve, the wear-resistant alloy sleeve is arranged in the control valve casing and is in sliding fit with the movable valve seat, the movable valve is arranged in the movable valve seat and is matched with the static valve, the movable valve seat is connected with one end of the down-flexible shaft joint, one end of the down-flexible shaft joint is connected with one end of the flexible shaft through the pin, the other end of the flexible shaft is connected with the up-flexible shaft joint through the pin, the upper flexible shaft joint is connected with the hollow multi-head rotor, the hollow multi-head rotor is positioned in the multi-head stator and is in rolling fit with the hollow multi-head rotor, a ball basket is arranged at the lower end of the hollow multi-head rotor, the soluble composite fracturing ball is matched with the hollow multi-head rotor, one end of the multi-head stator is connected with the upper flexible joint, the other end of the multi-head stator is connected with one end of the universal shaft shell, the other end of the universal shaft shell is connected with one end of the control valve shell, and the other end of the control valve shell is connected with the lower flexible joint.
Preferably, an adjusting ring is further installed in the control valve housing, and the adjusting ring is connected with one end of the wear-resistant alloy sleeve and is clamped at the step table of the control valve housing. The position of the wear-resistant alloy sleeve can be adjusted by arranging the adjusting ring, so that the service life of the valve seat of the movable valve is prolonged.
Preferably, strip-shaped holes are formed around the basketball goal.
Preferably, the middle part of the hollow multi-head rotor is provided with an arc-shaped shoulder. The arc-shaped shoulder surface is matched with the shape of the soluble composite fracturing ball, so that the sealing performance is improved.
Preferably, the soluble composite fracturing ball is of a dissolvable material.
Preferably, the movable valve, the fixed valve and the fixed valve seat are respectively provided with a through hole.
The beneficial effects of the invention are as follows:
1. The hydraulic oscillation ball throwing is started as required, and the well section which can work by the hydraulic oscillator can be freely started. The hydraulic oscillator is thrown on demand, so that the transmission of the drilling pressure is improved in the drilling of a well section with large friction resistance, the sticking of a drilling tool assembly is reduced, and the directional drilling efficiency is improved; in the section of the well with small friction resistance, the ball-throwing multi-head hydraulic oscillator can not work, so that the effective working time of the hydraulic oscillator in the well is prolonged, the pump consumption is reduced, the cost is lowered, and the efficiency is improved.
2. The soluble composite fracturing ball can be subjected to density adjustment according to the time required to work underground, so that the working time is met, and the normal use of other tools is not influenced after the ball is dissolved.
3. In the ball throwing or ball dissolving state, the multi-head hydraulic oscillator can perform plugging operation.
4. The working time of the hydraulic oscillator in the pit is effectively prolonged, the high-pressure time of pumping equipment is reduced, and the cost and the efficiency are reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is an enlarged view of a portion of the present invention.
Detailed Description
The following detailed description of the invention refers to the accompanying drawings and preferred embodiments.
As shown in fig. 1-2, a ball-casting starting multi-head hydraulic oscillator comprises a lower flexible joint 1, a control valve shell 2, an adjusting sleeve 3, a fixed valve 4, a wear-resistant alloy sleeve 5, an adjusting ring 6, a movable valve 7, a movable valve seat 8, a lower flexible shaft joint 9, a universal shaft shell 10, a flexible shaft 11, a pin 12, an upper flexible shaft joint 13, a multi-head stator 14, a hollow multi-head rotor (with ball basket) 15, a soluble composite fracturing ball 16 and an upper flexible joint 17; the movable valve 7 is arranged in the movable valve seat 8; the lower flexible shaft joint 9 is arranged in the flexible shaft 11; the pin 12 is arranged in the joint of the down-warping shaft 9; the upper flexible shaft joint 13 is arranged in the flexible shaft 11; the pin 12 is arranged in the upper flexible shaft joint 13; the adjusting ring 6 is arranged in the control valve body 2; the wear-resistant alloy sleeve 5 is arranged in the control valve body 2; the movable valve seat 8 is connected with the lower flexible shaft joint 9; the movable valve seat 8 and the flexible shaft assembly are arranged in the control valve housing 2; the fixed valve 4 is arranged in the control valve housing 2; the adjusting sleeve 3 is arranged in the control valve shell 2; the lower flexible joint 1 is connected with the control valve housing 2; the upper flexible shaft joint 13 is connected with the hollow multi-head rotor 15; the universal shaft shell 10 is connected with the control valve shell 2; the multi-head stator 14 is connected with the universal shaft housing 10; the soluble fracturing balls 16 are thrown into the hollow multi-head rotor 15.
This problem is solved in a simple and effective way, and a unique and effective way is provided. The multi-head hydraulic oscillator is opened and closed by throwing a soluble composite fracturing ball, and is opened by throwing a ball at a well section with large friction resistance and heavy pressure; a soluble composite fracturing ball can not be put in a well section which is not a hydraulic oscillator; the soluble composite fracturing ball is automatically dissolved after being used for a period of time, so that the ball-throwing starting type multi-head hydraulic oscillator is started as required, and the high-pressure working time on pumping equipment is reduced. The working time of hydraulic oscillation in the underground is effectively prolonged. Stable bit pressure transmission, reduced downhole friction, even in complex stratum with great azimuth angle change, improved adjustment capability to the bit tool face, so as to drill more distant target layer; the tool face is not required to be adjusted in drilling, so that the stability of the tool face is maintained, and the mechanical drilling speed is improved.
Working principle:
The power part of the ball throwing starting type multi-head hydraulic oscillator is composed of a multi-head hollow motor, the lower end of a motor rotor is connected with a titanium alloy flexible shaft to drive a movable valve to rotate, so that when fluid passes through a middle idle wheel, the motor does not work, when a soluble compound fracturing ball is thrown into the rotor, a hollow runner of the rotor is closed, the hollow multi-head rotor rotates, and the tail end of the motor reciprocates on a plane due to the characteristics of the motor to be called as the movable valve. The dynamic valve is tightly matched with the lower fixed valve, and the two valve plates are staggered and overlapped due to the rotation of the rotor, so that the upstream pressure is changed due to the staggered and overlapped condition, the sectional area (maximum value and minimum value) of fluid flowing through the tool is periodically changed due to the periodic relative movement, pressure pulse and pressure pulse are generated to drive the pipe column to vibrate, the friction resistance between the pipe column and the well wall is reduced, and the weight on bit transmission and tool face control are improved.
It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be comprehended within the scope of the present invention.
Claims (6)
1. A ball-throwing starting type multi-head hydraulic oscillator is characterized in that: the device comprises a lower flexible joint, a control valve shell, an adjusting sleeve, a fixed valve, a wear-resistant alloy sleeve, a movable valve seat, a lower flexible shaft joint, a universal shaft shell, a flexible shaft, a pin, an upper flexible shaft joint, a multi-head stator, a hollow multi-head rotor, a soluble composite fracturing ball and an upper flexible joint; the adjusting sleeve is arranged in the control valve casing, the fixed valve is arranged on one side of the adjusting sleeve, the wear-resistant alloy sleeve is arranged in the control valve casing and is in sliding fit with the movable valve seat, the movable valve is arranged in the movable valve seat and is matched with the static valve, the movable valve seat is connected with one end of the down-flexible shaft joint, one end of the down-flexible shaft joint is connected with one end of the flexible shaft through the pin, the other end of the flexible shaft is connected with the up-flexible shaft joint through the pin, the upper flexible shaft joint is connected with the hollow multi-head rotor, the hollow multi-head rotor is positioned in the multi-head stator and is in rolling fit with the hollow multi-head rotor, a ball basket is arranged at the lower end of the hollow multi-head rotor, the soluble composite fracturing ball is matched with the hollow multi-head rotor, one end of the multi-head stator is connected with the upper flexible joint, the other end of the multi-head stator is connected with one end of the universal shaft shell, the other end of the universal shaft shell is connected with one end of the control valve shell, and the other end of the control valve shell is connected with the lower flexible joint.
2. The pitching start-up multi-headed hydraulic oscillator of claim 1, wherein: an adjusting ring is further arranged in the control valve shell, and is connected with one end of the wear-resistant alloy sleeve and clamped at the step table of the control valve shell.
3. The pitching start-up multi-headed hydraulic oscillator of claim 1, wherein: and strip-shaped holes are formed around the ball basket.
4. The pitching start-up multi-headed hydraulic oscillator of claim 1, wherein: the middle part of the hollow multi-head rotor is provided with an arc-shaped shoulder.
5. The pitching start-up multi-headed hydraulic oscillator of claim 1, wherein: the soluble composite fracturing ball adopts a soluble material.
6. The pitching start-up multi-headed hydraulic oscillator of claim 1, wherein: and through holes are respectively arranged on the valve seats of the movable valve, the fixed valve and the fixed valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410359036.2A CN118547995A (en) | 2024-03-27 | 2024-03-27 | Ball-throwing starting type multi-head hydraulic oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410359036.2A CN118547995A (en) | 2024-03-27 | 2024-03-27 | Ball-throwing starting type multi-head hydraulic oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118547995A true CN118547995A (en) | 2024-08-27 |
Family
ID=92448877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410359036.2A Pending CN118547995A (en) | 2024-03-27 | 2024-03-27 | Ball-throwing starting type multi-head hydraulic oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118547995A (en) |
-
2024
- 2024-03-27 CN CN202410359036.2A patent/CN118547995A/en active Pending
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