Turbine type underground accelerator

Abstract

The utility model discloses a turbo type underground accelerator which comprises an outer pipe, and the outer pipe is connected with a sliding sleeve through threads. The sliding sleeve is in clearance fit with the shaft barrel through a hole shaft, the shaft barrel is connected with the occupying seat through threads, the outer wall of the occupying seat is connected with the cavity through threads, the outer wall of the cavity is connected with the interior of the outer pipe, the inner wall of the cavity is connected with the outer wall of the upper cover through threads, and the sliding sleeve and the occupying seat are in clearance fit. The interior of the upper cover is connected with a turbine in an interference fit mode, the interior of the cavity and the lining are both placed in the outer pipe, the rotor is connected with the shaft rod through the shaft rod in an interference fit mode, and the shaft rod and the transmission shaft are connected in a clamped mode. According to the turbo type underground accelerator, the rotary hammer is installed, the shaft rod is driven to rotate through drilling fluid, the shaft rod drives the rotary hammer to generate torsional impact, then the rock breaking effect is achieved through impact of the rotary hammer, and therefore the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground speed-up devices, in particular to a turbine-type underground speed-up device. Background Art

[0002] The turbine downhole speed-up tool is a new type of downhole tool for increasing drilling speed and efficiency. It is a tool for improving the efficiency of drilling machinery, increasing the travel footage, and improving the drilling time. The turbine downhole speed-up tool is a new type of tool that uses direct-connected supercharger to start rotation and generate torsional blasting load;

[0003] Referring to the downhole double-acting speed-up device with the publication number CN206458314U, the axial pressure stabilizing structure can stabilize the axial pressure on the drill bit, apply axial stable thrust to the drill bit, and provide circumferential impact force to the drill bit by setting a circumferential impact structure, thereby improving the drilling speed. However, the following problems still exist:

[0004] In the actual use of the above-mentioned device, although the axial pressure stabilization structure is used to increase the drilling speed, as shallow oil and gas resources are becoming increasingly depleted, drilling projects are gradually developing towards areas with severe environmental conditions such as deep wells. The hardness and plasticity of deep strata rocks increase, and the difficulty of rock breaking also increases significantly, which is prone to stick-slip phenomenon, leading to problems such as drill bit damage, low drilling speed, and high drilling costs. The existing circumferential load vibration device has a weakened effect in alleviating the stick-slip phenomenon of the lower drill bit, and has the defects of unstable performance and short life, resulting in unsatisfactory rock breaking effect.

[0005] Therefore, we proposed a turbine downhole speed-up device that can solve the above problems well. Utility Model Content

[0006] The purpose of the utility model is to provide a turbine-type downhole speed-up device to solve the problems raised by the above-mentioned background technology that the hardness and plasticity of deep strata rocks in the current market have increased, the difficulty of rock breaking has also increased significantly, and stick-slip phenomenon is prone to occur, resulting in damage to the drill bit, low drilling speed, and high drilling costs. The existing circumferential load vibration device has a weakened effect in alleviating the stick-slip phenomenon of the lower drill tool, and has the defects of unstable performance and short life, which leads to the problem of unsatisfactory rock breaking effect.

[0007] To achieve the above object, the utility model provides the following technical solution: a turbine downhole speed-up device, comprising an outer tube, wherein the outer tube is connected to a sliding sleeve by a thread;

[0008] Also includes:

[0009] The sleeve and the shaft cylinder are fitted together through the hole-shaft clearance, the shaft cylinder and the seat are connected by threads, and the outer wall of the seat is connected to the cavity by threads, and the outer wall of the cavity is connected to the interior of the outer tube, and the inner wall of the cavity is connected to the outer wall of the upper cover by threads, the interior of the upper cover is connected with a turbine by interference fit, the interior of the cavity and the bushing are both placed inside the outer tube, and the rotor is connected through an interference fit through a shaft rod, and a clamping connection is formed between the shaft rod and the transmission shaft, the transmission shaft is placed inside the upper cover, and the right end of the transmission shaft contacts the seat to form a thrust structure, and the right end of the transmission shaft is keyed to a rotary hammer, the outer wall of the rotary hammer is fitted with a pin rod, and the pin rod forms a rotating mechanism inside the seat.

[0010] Preferably, the upper cover is connected to the filter cartridge by welding, and the filter cartridge and the turbine are welded together after being positioned by hole-shaft clearance.

[0011] Preferably, the middle portion of the shaft is connected to the bearing, and the outer wall of the bearing is nested in the cavity to form a rotating mechanism.

[0012] Preferably, the outer wall of the seat is fitted with the inner wall of the outer tube, and a gasket is fitted on the right end of the seat, and the outer end of the gasket is fitted with the inner wall of the outer tube.

[0013] Preferably, an impact cylinder is attached to the right end of the outer tube, and a limiting mechanism is formed between the inner end of the impact cylinder and the pendulum.

[0014] Preferably, a key connection mechanism is formed between the middle part of the pendulum and the commutator, and the commutator is connected to the right end of the transmission shaft.

[0015] Preferably, the turbine is arranged in a blade-like manner, and the filter cartridge at the left end of the turbine is provided with openings at equal angles.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the turbine-type downhole speed-up device improves the rock breaking effect and the service life of the rotor turbine, generates torsional impact through the rotary hammer, thereby improving the rock breaking effect, and through the use of the rotor turbine, the service life of the rotor turbine can be improved. The specific contents are as follows:

[0017] (1) A rotary hammer is provided, and the drilling fluid drives the shaft to rotate, and the shaft drives the rotary hammer to produce a torsional impact, and then the impact of the rotary hammer is used to achieve the effect of breaking the rock, thereby improving the use effect;

[0018] (2) A rotor turbine is provided, and the flow of drilling fluid can drive the rotor turbine to rotate, and the rotor turbine is arranged in a blade-like manner, thereby reducing the wear of the turbine and thus increasing the service life of the turbine;

[0019] (3) A filter cartridge is provided, which is arranged in a blade-like manner through the turbine, and the filter cartridge at the left end of the turbine is provided with openings at equal angles, so that the filter cartridge can filter impurities in the drilling fluid, thereby avoiding wear caused by the flow of impurities;

[0020] (4) A gasket is provided, and the outer wall of the seat is fitted with the inner wall of the outer tube, and the right end of the seat is fitted with the gasket, and the outer end of the gasket is fitted with the inner wall of the outer tube, so that the gasket can improve the sealing performance;

[0021] (5) A turbine is provided, which is connected to the filter cartridge by welding through an upper cover, and the filter cartridge and the turbine are welded together after being positioned by the hole-shaft clearance, so that the rotation of the turbine can drive the filter cartridge to rotate, thereby avoiding clogging of the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front section structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the side section structure of the pendulum of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the turbine of the utility model;

[0026] Figure 5 This is a schematic diagram of the side sectional structure of the transmission shaft of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the utility model after the rotary hammer rotates;

[0028] Figure 7 This is a schematic diagram of the structure of the utility model after the transmission shaft rotates;

[0029] Figure 8 It is a schematic diagram of the structure of the utility model after the transmission shaft rotates.

[0030] In the figure: 1. outer tube; 2. sliding sleeve; 3. shaft cylinder; 4. filter cylinder; 5. turbine; 6. upper cover; 7. rotor; 8. bushing; 9. bearing; 10. cavity; 11. shaft rod; 12. transmission shaft; 13. rotary hammer; 14. pin rod; 15. seat; 16. gasket; 17. impact cylinder; 18. pendulum; 19. commutator. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1:

[0033] The utility model solves the problem that the existing turbine 5 is seriously worn during use, thereby affecting its service life. The filter cartridge 4 can filter impurities in the drilling fluid, thereby increasing the service life of the turbine 5. The utility model discloses:

[0034] The outer tube 1 is connected with the sleeve 2 by threads; the sleeve 2 and the shaft cylinder 3 are matched together by a hole-shaft clearance, the shaft cylinder 3 and the seat 15 are connected by threads, and the outer wall of the seat 15 is connected with the cavity 10 by threads, and the outer wall of the cavity 10 is connected with the inner part of the outer tube 1, and the inner wall of the cavity 10 is connected with the outer wall of the upper cover 6 by threads, the inner part of the upper cover 6 is connected with the turbine 5 by interference fit, the inner part of the cavity 10 and the bushing 8 are both placed in the inner part of the outer tube 1, and the rotor 7 is connected by interference fit through the shaft rod 11, and the shaft rod 11 and the transmission shaft 12 are clamped, the transmission shaft 12 is placed in the inner part of the upper cover 6, and the right end of the transmission shaft 12 is in contact with the seat 15 to form a thrust structure, and the right end of the transmission shaft 12 is keyed with a rotary hammer 13, the outer wall of the rotary hammer 13 is fitted with a pin rod 14, and the pin rod 14 forms a rotating mechanism in the seat 15;

[0035] refer to Figure 1 and Figure 4 , by extending the outer tube 1 into the well, the drilling fluid in the well will enter the inner part of the outer tube 1, and the impurities in the drilling fluid can be filtered through the filter cartridge 4, so as to avoid the impurities from causing scratches after passing through the turbine 5, which will cause the turbine 5 to wear over time, and the filter cartridge 4 can increase the service life of the turbine 5;

[0036] Embodiment 2:

[0037] The utility model solves the problems that the hardness and plasticity of existing deep strata rocks increase, the difficulty of rock breaking also increases significantly, the stick-slip phenomenon is prone to occur, and the drill bit is damaged, the drilling speed is low, the drilling cost is high, etc. The existing circumferential load vibration device has a weakened effect of alleviating the stick-slip phenomenon of the lower drill bit, and has the defects of unstable performance and short life, which leads to the problem of unsatisfactory rock breaking effect. Through the rotation of the rotary hammer 13, the effect of impact blasting is achieved, and the rock breaking effect is improved. The utility model discloses:

[0038] The upper cover 6 is connected to the filter cartridge 4 by welding, and the filter cartridge 4 and the turbine 5 are welded together after being positioned by the hole-shaft clearance fit, the middle part of the shaft 11 is connected to the bearing 9, and the outer wall of the bearing 9 is nested in the cavity 10 to form a rotating mechanism, the outer wall of the seat 15 is fitted with the inner wall of the outer tube 1, and the right end of the seat 15 is fitted with a gasket 16, and the outer end of the gasket 16 is fitted with the inner wall of the outer tube 1;

[0039] refer to Figures 1 to 7 , the drilling fluid flows into the turbine 5, and then the turbine 5 drives the rotor 7 to rotate, and then the rotor 7 rotates to drive the shaft 11 to rotate, so that the shaft 11 rotates to drive the transmission shaft 12 to rotate, and then the transmission shaft 12 rotates to drive the rotary hammer 13 to rotate, and then the rotary hammer 13 rotates and collides with the pin 14 to form a ratchet structure, so that the rotary hammer 13 can generate a high-frequency torsional blasting impact, and then the impact can achieve the effect of breaking rocks, thereby improving efficiency;

[0040] Embodiment three:

[0041] The utility model solves the problem of low rock breaking efficiency in the second embodiment, and the commutator 19 can achieve the purpose of reciprocating rotation, thereby improving the rock breaking efficiency, and discloses:

[0042] The right end of the outer tube 1 is fitted with an impact cylinder 17, and a limit mechanism is formed between the inner end of the impact cylinder 17 and the pendulum 18, a key connection mechanism is formed between the middle part of the pendulum 18 and the commutator 19, and the commutator 19 is connected to the right end of the transmission shaft 12, the turbine 5 is arranged in a blade-like manner, and the filter cylinder 4 at the left end of the turbine 5 is provided with openings at equal angles;

[0043] refer to Figures 1 to 7 The rotation of the transmission shaft 12 can drive the rotary hammer 13 to rotate, and the rotary hammer 13 can be rotated back and forth through the action of the commutator 19, so that the rotary hammer 13 and the pin rod 14 can rotate clockwise and counterclockwise. When the drilling fluid passes through, a high-frequency torsional blasting impact is generated, which can effectively reduce the stick-slip phenomenon of the PDC drill bit, protect the drill bit, and increase the drilling speed.

[0044] Working principle: When using this turbine downhole speed booster, first refer to Figure 1 and Figure 4 By extending the outer tube 1 into the well, the drilling fluid in the well will enter the inner part of the outer tube 1, and the impurities in the drilling fluid can be filtered through the filter cartridge 4, which will cause the wear of the turbine 5 over time, and the filter cartridge 4 can increase the service life of the turbine 5;

[0045] refer to Figures 1 to 7, the drilling fluid flows into the turbine 5, and then the turbine 5 drives the rotor 7 to rotate, so that the shaft 11 rotates to drive the transmission shaft 12 to rotate, and then the transmission shaft 12 rotates to drive the rotary hammer 13 to rotate, and then the rotary hammer 13 rotates and collides with the pin 14 to form a ratchet structure, and then the rock can be broken through the impact, thereby improving the efficiency;

[0046] refer to Figures 1 to 7 The rotation of the transmission shaft 12 can drive the rotary hammer 13 to rotate, and the rotary hammer 13 can be rotated reciprocatingly through the action of the commutator 19. When the drilling fluid passes through, a high-frequency torsional blasting impact will be generated, which can effectively reduce the stick-slip phenomenon of the PDC drill bit, protect the drill bit, and increase the drilling speed.

[0047] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A turbine downhole speed-up device, comprising an outer tube (1), wherein the outer tube (1) is connected to a sliding sleeve (2) by means of threads; It is characterized in that Also includes: The sleeve (2) and the shaft cylinder (3) are fitted together via a hole-shaft clearance, the shaft cylinder (3) and the seat (15) are connected via threads, and the outer wall of the seat (15) is connected to the cavity (10) via threads, and the outer wall of the cavity (10) is connected to the interior of the outer tube (1), and the inner wall of the cavity (10) is connected to the outer wall of the upper cover (6) via threads, the interior of the upper cover (6) is connected to the turbine (5) via interference fit, and the interior of the cavity (10) and the bushing (8) are both placed The outer tube (1) is provided inside the outer tube, and the rotor (7) is connected to the shaft (11) by interference fit, and the shaft (11) and the transmission shaft (12) are connected by a clamping connection, the transmission shaft (12) is placed inside the upper cover (6), and the right end of the transmission shaft (12) contacts with the seat (15) to form a thrust structure, and the right end of the transmission shaft (12) is key-connected with a rotary hammer (13), the outer wall of the rotary hammer (13) is fitted with a pin rod (14), and the pin rod (14) forms a rotating mechanism inside the seat (15).

2. A turbine-type downhole speed-up device according to claim 1, characterized in that: The upper cover (6) is connected to the filter cartridge (4) by welding, and the filter cartridge (4) and the turbine (5) are welded together after being positioned by hole-shaft clearance.

3. A turbine-type downhole speed-up device according to claim 1, characterized in that: The middle portion of the shaft (11) is connected to the bearing (9), and the outer wall of the bearing (9) is nested in the cavity (10) to form a rotating mechanism.

4. A turbine-type downhole speed-up device according to claim 1, characterized in that: The outer wall of the seat (15) is fitted with the inner wall of the outer tube (1), and a gasket (16) is fitted on the right end of the seat (15), and the outer end of the gasket (16) is fitted with the inner wall of the outer tube (1).

5. A turbine-type downhole speed-up device according to claim 1, characterized in that: The right end of the outer tube (1) is fitted with an impact tube (17), and a limiting mechanism is formed between the inner end of the impact tube (17) and the pendulum (18).

6. A turbine-type downhole speed-up device according to claim 5, characterized in that: A key connection mechanism is formed between the middle part of the pendulum (18) and the commutator (19), and the commutator (19) is connected to the right end of the transmission shaft (12).

7. A turbine-type downhole speed-up device according to claim 1, characterized in that: The turbine (5) is arranged in a blade-like manner, and the filter cartridge (4) at the left end of the turbine (5) is provided with openings at equal angles.

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