Novel vibration well cementation tool

Abstract

The invention belongs to the field of energy exploration, particularly relates to a novel vibration cementing tool, and aims to solve the problems that a conventional electric vibration tool in the prior art is poor in frequency controllability, uncontrollable in vibration time and the like. The vibration cementing tool comprises an upper connector assembly, one end of the upper connector assembly is detachably and fixedly connected with a vibration cementing tool body, and the other end of the upper connector assembly is detachably and fixedly connected with a trigger starting assembly; the control assembly is arranged on one side of the other end of the trigger starting assembly and fixed to the power assembly. The power assembly is arranged below the control assembly and is fixed; the vibration assembly is arranged below the power assembly and is fixed with the power assembly; and the rotary guide assembly is arranged below the vibration assembly and is detachably and fixedly connected with the inner surface of the vibration well cementation tool body. According to the invention, the shearing force of the drilling fluid is reduced, the mud cake on the cementing surface is removed, the cement paste displacement efficiency is improved, and the generated vibration wave is longitudinally spread, so that the cement paste is more fully contacted with the well wall and the casing pipe.

Description

Technical Field

[0001] The present invention belongs to the field of energy exploration, and particularly relates to a novel vibration cementing tool. Background Art

[0002] Wellbore construction is the most primary task in oil and gas drilling and development projects, and the quality of its construction directly affects the success or failure of drilling work. Casing running operation and cementing operation are important technical links in wellbore construction projects, and are the key to ensuring the integrity of the oil and gas drilling wellbore and improving the service life. Therefore, the quality of the operation directly affects the normal progress of oil and gas field development and oil and gas resource exploitation.

[0003] With the increasingly wide application of deviated wells, when using the conventional casing running method, it is extremely easy to cause casing sticking due to reasons such as improper operation. In highly deviated wells or horizontal wells, the open hole section is long, the wellbore is irregular, and the friction torque during casing running is very large. The lifting and lowering operations often used in conventional casing running operations will cause a large axial impact load on the casing, unable to ensure the smooth running of the pipe string, and at the same time greatly increasing the risk of casing deformation during the subsequent fracturing process.

[0004] In cementing operations, if the cement slurry fails to completely fill the annular space to be cemented, or fails to form a high-quality and complete cement sheath that is well cemented to the formation and casing of the well section to be cemented, it will lead to poor cementing quality, unsatisfactory interlayer isolation, and frequent interlayer crossflow of oil, gas, and water.

[0005] To avoid the phenomena of poor cement sheath bonding, loose filling, and the appearance of holes caused by reasons such as wellbore curvature or large inclination, casing eccentricity, and low displacement efficiency, vibration cementing technology is often used, which can ensure that the cement sheath is dense, homogeneous, and fully compacted, improving and enhancing the cementing quality. However, there are many drawbacks to the existing vibration cementing tools: they need to be controlled by surface wellhead equipment, with high construction costs and unclear application effects; they need to run cables, with a cumbersome construction process, and the reliability of the cables is poor, and there is a risk of breaking and falling into the well during the running process; downhole hydraulic vibration tools have limited propagation distance and poor vibration effects; conventional electric vibration tools have poor frequency controllability and uncontrollable vibration time, and the internal circulation channel is small, extremely easy to cause plugging of the grouting channel and device failure, resulting in cementing failure.

[0006] Based on this, the present invention proposes a novel vibration cementing tool. Summary of the Invention

[0007] To solve the above problems in the prior art, namely, the poor vibration effect in the prior art, the poor frequency controllability and uncontrollable vibration time of conventional electric vibration tools, and the small internal circulation channel, which are extremely likely to cause problems such as blockage of the grouting channel and device failure, the present invention provides a novel vibration cementing tool, including an upper joint assembly, a trigger start assembly, a control assembly, a power assembly, a vibration assembly, a rotary guiding assembly and a vibration cementing tool body;

[0008] One end of the upper joint assembly is detachably and fixedly connected to the vibration cementing tool body, and the other end of the upper joint assembly is detachably and fixedly connected to the trigger start assembly;

[0009] The control assembly is arranged on one side of the other end of the trigger start assembly, and the control assembly is fixed to the power assembly; the power assembly is arranged below the control assembly and fixed;

[0010] The vibration assembly is arranged below the power assembly and fixed to the power assembly;

[0011] The rotary guiding assembly is arranged below the vibration assembly and is detachably and fixedly connected to the inner surface of the vibration cementing tool body.

[0012] In some preferred embodiments, the upper joint assembly includes an upper joint body and an upper joint sealing ring;

[0013] The upper joint body is threadedly connected to the vibration cementing tool body through the upper joint sealing ring.

[0014] In some preferred embodiments, the trigger start assembly includes a rubber plug seat, a rubber plug seat sealing ring, a diversion seat, a push rod, a disc spring, a push rod seat, a spring, a travel switch trigger rod, a travel switch stop piece, a travel switch, a diversion chamber body and a diversion chamber body sealing ring;

[0015] The rubber plug seat is threadedly connected to the upper joint body and is sealingly connected through the rubber plug seat sealing ring. A cementing rubber plug capable of moving along it is arranged in the rubber plug seat;

[0016] The rubber plug seat is coaxially fixed to one end of the diversion seat, the other end of the diversion seat is fixed to one end of the disc spring, and the other end of the disc spring is fixed to the diversion chamber body;

[0017] The push rod, the push rod seat, the spring, the travel switch trigger rod, the travel switch stop piece and the travel switch are located inside the rubber plug seat, the diversion seat and the diversion chamber body; the diversion chamber body is sealingly connected to the vibration cementing tool body through the diversion chamber body sealing ring;

[0018] The cementing plug can be lapped with one end of the push rod. The push rod is arranged in the push rod seat and moves along it. The push rod seat is fixed to the diversion bin body. The other end of the push rod is fixed to one end of the spring, and the other end of the spring is fixed to the travel switch baffle.

[0019] The other end of the push rod is lapped with the travel switch trigger rod, and the travel switch trigger rod moves along its axial direction. The travel switch trigger rod is used to toggle the travel switch baffle. The travel switch baffle is fixed to the inner end face of the diversion bin body. The travel switch baffle is used to control the on-off of the travel switch, and the travel switch is used to control the on-off of the control component.

[0020] In some preferred embodiments, the control component includes a control circuit board and a control circuit bin body.

[0021] The control circuit board is connected to the forming switch, the control circuit board is fixed to the control circuit bin body, and the control circuit bin body is fixed to the power component. The components installed on the control circuit board include a motor control circuit switch, a charging control circuit switch, a battery pack control circuit switch, a trigger circuit switch, a control circuit processor, a control switch I, and a control switch II.

[0022] The motor control circuit switch is used to control the start and stop of the vibration component. The charging control circuit switch is used to control the start and stop of the charging of the power battery. The battery pack control circuit switch is used to control the start and stop of the power supply of the power battery. The trigger circuit switch is used to control the connection and disconnection of the circuit board. The control circuit processor is used to provide signal outputs for vibration start and stop, and algorithm settings for vibration time and vibration frequency. The control switch I and the control switch II are spare switches.

[0023] In some preferred embodiments, the power component includes a power battery skeleton, a power battery housing, and a power battery bottom plate.

[0024] The power battery skeletons are uniformly arranged in multiple groups along the axial direction of the vibration cementing tool body and are connected to each other. They are arranged inside the power battery housing. Both the upper and lower ends of the power battery housing are fixed to the power battery bottom plate. The power battery bottom plate is respectively fixed to the control circuit bin body and the vibration component.

[0025] In some preferred embodiments, the vibration component includes a motor housing, a motor housing upper seal ring, a coupling, a transmission shaft, bolts, a flat keyway, a fixed eccentric block, an aligning eccentric block, a motor housing lower seal ring, nuts, ball bearings, shaft retaining rings, a vibration bin body, and an electric motor.

[0026] The power battery bottom plate is fixed to the motor housing through the sealing ring on the motor housing. A motor is fixed inside the motor housing. The output shaft of the motor is coaxially fixed to the transmission shaft through the coupling. A flat key groove is provided on the outer circumferential surface of the transmission shaft. The transmission shaft is key-connected to the fixed eccentric block through the flat key groove. The fixed eccentric block is adjustably fixed to the centering eccentric block through the bolt and the nut;

[0027] The bottom end of the transmission shaft is hermetically connected to the bottom end of the motor housing through the shaft retaining ring;

[0028] The motor housing is threadedly connected to the vibrating bin body and hermetically connected through the lower sealing ring of the motor housing. A ball bearing is installed at the lower end of the vibrating bin body. The ball bearing is bearing-connected to the transmission shaft.

[0029] In some preferred embodiments, the rotary guiding assembly includes a back pressure valve, a baffle, a ball bearing, an impeller, a connecting sleeve, a thrust bearing, an eccentric guiding head, and a body;

[0030] The body is threadedly connected to the inner surface of the vibrating cementing tool body. The back pressure valve is threadedly connected to the inner surface of the body. The baffle is fixed to the lower end of the back pressure valve and is provided with a flow passage. The baffle is connected to the impeller through a ball bearing;

[0031] A connecting sleeve is installed at the lower end of the impeller. The connecting sleeve is connected to the eccentric guiding head through the thrust bearing.

[0032] In some preferred embodiments, the travel switch is used to control the control circuit processor on the control circuit board to send out a vibration start signal.

[0033] In some preferred embodiments, the rotational speed range of the motor is 0 r / min to 1400 r / min.

[0034] In some preferred embodiments, a plurality of threaded holes are provided at the preset positions of the centering eccentric block and the fixed eccentric block, and different angle eccentric block combinations are formed by connecting different threaded holes through the bolt and the nut.

[0035] Advantages of the present invention:

[0036] (1) The present invention is composed of an upper joint, a trigger start component, a control component, a power component, a vibration component, a rotation guide component and a vibration cementing tool body. During the casing operation, the rotation guide mechanism can ensure that the casing is smoothly and safely lowered to the predetermined depth. During the cementing operation, when the cementing plug descends to the trigger start component during the displacement process, it hits the plug seat and presses down to start the connecting rod device, so that the control system circuit is connected, and the power battery pack provides power to rotate the motor with a speed range of 0r / min to 1400r / min, driving the eccentric combination to rotate, and through the control circuit board algorithm design and time clock design, it continues to vibrate at the designed amplitude value and frequency point. The invention can set the vibration time and vibration frequency according to the requirements of the actual cementing site construction.

[0037] (2) The present invention provides a new type of vibration cementing tool, which mainly includes a vibration mechanism and a rotary guide mechanism. The vibration mechanism applies vibration waves to the cement slurry during the cementing construction displacement process, causing the annular space medium to vibrate, thereby reducing the shear force of the drilling fluid, removing the mud cake on the cementing surface, and improving the cement slurry displacement efficiency. At the same time, the vibration waves generated propagate longitudinally, thereby allowing the cement slurry to contact more fully with the well wall and casing, improving the bonding conditions of the first and second interfaces, and improving the cementing quality.

[0038] (3) The rotating guide mechanism is located at the bottom of the tool. The internal back pressure valve is driven by a tongue plate. During the casing circulation process, the impeller is used to increase the pressure, drive the guide shoe head to rotate at high speed, guide the drilling fluid to form a high-speed rotating vortex, and clean or trim the wellbore and casing wall. The guide head is eccentric. When the pipe string encounters resistance during insertion, it can move up and down, and the self-guided rotating head can change direction, which can more effectively guide the casing string into the well. The guide shoe head is equipped with a high-efficiency thrust bearing to reduce rotational resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0040] Figure 1 It is a schematic diagram of the overall structure of a novel vibration cementing tool of the present invention;

[0041] Figure 2 It is a schematic diagram of the upper joint structure of a novel vibration cementing tool of the present invention;

[0042] Figure 3 It is a structural schematic diagram of a trigger start component of a novel vibration cementing tool of the present invention;

[0043] Figure 4 It is a structural schematic diagram of a control component of a novel vibration cementing tool of the present invention;

[0044] Figure 5 It is a schematic structural diagram of a power component of a novel vibration cementing tool of the present invention;

[0045] Figure 6 It is a schematic structural diagram of a vibration component of a novel vibration cementing tool of the present invention;

[0046] Figure 7 It is a schematic structural diagram of a rotary guiding component of a novel vibration cementing tool of the present invention. Specific embodiments

[0047] The following further details the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention and not to limit the invention. Additionally, it should be noted that for the sake of description, only the parts related to the relevant invention are shown in the drawings.

[0048] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will detail the present application with reference to the drawings and embodiments.

[0049] As Figures 1 - 7 shown, referring to Figure 1 , the present invention provides a novel vibration cementing tool, including an upper joint assembly 1, a trigger start assembly 2, a control assembly 3, a power assembly 4, a vibration assembly 5, a rotary guiding assembly 6, and a vibration cementing tool body 7;

[0050] One end of the upper joint assembly 1 is detachably and fixedly connected to the vibration cementing tool body 7, and the other end of the upper joint assembly 1 is detachably and fixedly connected to the trigger start assembly 2;

[0051] The control assembly 3 is disposed on one side of the other end of the trigger start assembly 2, and the control assembly 3 is fixed to the power assembly 4; the power assembly 4 is disposed below the control assembly 3 and fixed;

[0052] The vibration assembly 5 is disposed below the power assembly 4 and fixed to the power assembly 4;

[0053] The rotary guiding assembly 6 is disposed below the vibration assembly 5 and is detachably and fixedly connected to the inner surface of the vibration cementing tool body 7.

[0054] Preferably, referring to Figure 1 、 Figure 2 , the upper joint assembly 1 includes an upper joint body 101 and an upper joint sealing ring 102;

[0055] The upper joint body 101 is threadedly connected to the vibration cementing tool body 7 through the upper joint sealing ring 102.

[0056] Preferably, referring to Figure 3 , the trigger start component 2 includes a rubber plug seat 201, a rubber plug seat sealing ring 202, a diversion seat 203, a push rod 204, a disc spring 205, a push rod seat 206, a spring 207, a travel switch trigger rod 208, a travel switch stop piece 209, a travel switch 210, a diversion chamber body 211, and a diversion chamber body sealing ring 212;

[0057] The rubber plug seat 201 is threadedly connected to the upper joint body 101 and is hermetically connected through the rubber plug seat sealing ring 202. A cementing rubber plug capable of moving along it is arranged in the rubber plug seat 201;

[0058] One end of the rubber plug seat 201 is coaxially fixed to one end of the diversion seat 203. The other end of the diversion seat 203 is fixed to one end of the disc spring 205, and the other end of the disc spring 205 is fixed to the diversion chamber body 211;

[0059] The push rod 204, the push rod seat 206, the spring 207, the travel switch trigger rod 208, the travel switch stop piece 209, and the travel switch 210 are located inside the rubber plug seat 201, the diversion seat 203, and the diversion chamber body 211. The diversion chamber body 211 is hermetically connected to the vibration cementing tool body 7 through the diversion chamber body sealing ring 212

[0060] The cementing rubber plug can overlap with one end of the push rod 204. The push rod 204 is arranged in the push rod seat 206 and moves along it. The push rod seat 206 is fixed to the diversion chamber body 211. The other end of the push rod 204 is fixed to one end of the spring 207, and the other end of the spring 207 is fixed to the travel switch stop piece 209;

[0061] The other end of the push rod 204 overlaps with the travel switch trigger rod 208, and the travel switch trigger rod 208 moves along its axial direction. The travel switch trigger rod 208 is used to toggle the travel switch stop piece 209. The travel switch stop piece 209 is fixed to the inner end face of the diversion chamber body 211. The travel switch stop piece 209 is used to control the on-off of the travel switch 210, and the travel switch 210 is used to control the on-off of the control component 3.

[0062] Among them, when the cementing plug seats on the plug seat 201, it will simultaneously press down the push rod 204. The push rod 204 is surrounded by the push rod seat 206. The travel switch trigger rod 208 is located at the lower part of the push rod 204. The push rod 204 presses down to contact the travel switch trigger rod 208, compresses the compression spring 207, causes the travel switch trigger rod 208 to move downward, toggles the travel switch flap 209, and triggers the travel switch 210 to open; the diversion chamber body 211 has a flow-through channel to guide the drilling fluid or cement slurry to flow downward on both sides, and is sealed through the diversion chamber body sealing ring 212.

[0063] Among them, the diversion seat 203 has an inclined surface flow-through structure to guide the plug head to insert into it, and there are a charging port and a Bluetooth communication port on the side, which can realize the functions of battery charging and Bluetooth control. The plug seat 201 has a concave structure and is provided with a slot anti-rotation structure. After the plug seats, it will no longer rotate, which is convenient for later drilling and removal. The trigger start assembly 2 has a rod-shaped swing rod structure. The travel switch trigger rod 208 swings downward, and the device is turned on. The travel switch 210 of the starting device is connected to the control circuit board 308.

[0064] Among them, since this tool is triggered by the fall of the plug, its force direction is vertically downward, and the target type is also an object moving vertically downward. Therefore, a mechanical plunger type travel switch is designed. The contact mode of the plunger type travel switch is a quick-acting contact, that is, a flap switch mode. Because the current of this vibration tool will not be too large or the contact will be closed for a long time, this kind of quick point-to-point contact is selected. When the set vibration time arrives, the chip controls the travel switch to disconnect, the power supply stops, and the vibration also stops accordingly.

[0065] Preferably, referring to Figure 4 , the control assembly 3 includes a control circuit board 308 and a control circuit chamber body 310;

[0066] The control circuit board 308 is connected to the forming switch 210. The control circuit board 308 is fixed to the control circuit chamber body 310, and the control circuit chamber body 310 is fixed to the power assembly 4; The components installed on the control circuit board 308 include a motor control circuit switch 301, a charging control circuit switch 302, a battery pack control circuit switch 303, a trigger circuit switch 304, a control circuit processor 305, a control switch I 306, and a control switch II 307;

[0067] The motor control circuit switch 301 is used to control the start and stop of the motor 514 in the vibration assembly 5. The charging control circuit switch 302 is used to control the start and stop of the charging of the power battery. The battery pack control circuit switch 303 is used to control the start and stop of the power supply of the power battery. The trigger circuit switch 304 is used to control the connection and disconnection of the circuit board 308. The control circuit processor 305 is used to provide signal output for vibration start and stop, and algorithm settings for vibration time and vibration frequency. The control switch I 306 and the control switch II 307 are spare switches.

[0068] Among them, the control assembly 3, the peripheral control cabin, surrounds the control circuit board 308. The control circuit board 308 includes a processor, a serial peripheral interface, an RTC clock, and a Debug module, and interfaces for a serial charging battery, a vibration motor, and an antenna. The control circuit board 308 is fixed to the control circuit cabin 310 by screws 309. There is aerogel in the sealed cabin to ensure insulation and temperature resistance.

[0069] Preferably, refer to Figure 5 , the power assembly 4 includes a power battery skeleton 401, a power battery housing 402, and a power battery bottom plate 403;

[0070] The power battery skeletons 401 are uniformly arranged in multiple groups along the axial direction of the vibration cementing tool body 7 and are connected to each other, and are arranged inside the power battery housing 402. Both the upper and lower ends of the power battery housing 402 are fixed to the power battery bottom plate 403, and the power battery bottom plate 403 is respectively fixed to the control circuit cabin 310 and the vibration assembly 5.

[0071] Among them, the power battery housing 402 is provided to prevent drilling fluid or cement slurry flowing through the diversion cabin 211 from entering the interior through the annulus.

[0072] Among them, each group of skeletons is strengthened and fixed by an insulating and highly thermally conductive silicone bottom plate before and after. The overall periphery of the power battery pack is wrapped by a power system housing to prevent drilling fluid or cement slurry flowing through from entering the interior through the annulus. The upper interface of the battery pack is connected to the control circuit, and the battery pack is rechargeable.

[0073] Among them, the upper interface is connected to the control circuit board 308, and the power supply is controlled by the control circuit board 308.

[0074] Preferably, refer to Figure 6 , the vibration assembly 5 is composed of a motor housing 501, an upper motor housing seal ring 502, a coupling 503, a transmission shaft 504, bolts 505, a flat keyway 506, a fixed eccentric block 507, an alignment eccentric block 508, a lower motor housing seal ring 509, nuts 510, ball bearings 511, shaft retaining rings 512, a vibration cabin 513, and a motor 514;

[0075] The power battery bottom plate 403 is fixed to the motor housing 501 through the sealing ring 502 on the motor housing. A motor 514 is fixed inside the motor housing 501. The output shaft of the motor 514 is coaxially fixed to the transmission shaft 504 through the coupling 503. A flat key groove 506 is provided on the outer circumferential surface of the transmission shaft 504. The transmission shaft 504 is key-connected to the fixed eccentric block 507 through the flat key groove 506. The fixed eccentric block 507 is adjustably fixed to the centering eccentric block 508 through the bolt 505 and the nut 510;

[0076] The bottom end of the transmission shaft 504 is hermetically connected to the bottom end of the motor housing 501 through the shaft retaining ring 512;

[0077] The motor housing 501 is threadedly connected to the vibration bin body 513 and is hermetically connected through the lower sealing ring 509 of the motor housing. A ball bearing 511 is installed at the lower end of the vibration bin body 513. The ball bearing 511 is bearing-connected to the transmission shaft 504.

[0078] Wherein, in this embodiment, both the bolt 505 and the nut 510 are hexagon bolts and hexagon nuts.

[0079] Preferably, referring to Figure 7 , the rotary guiding assembly 6 includes a back pressure valve 601, a baffle 602, a ball bearing 603, an impeller 604, a connecting sleeve 605, a thrust bearing 606, an eccentric guiding head 607 and a body 608;

[0080] The body 608 is threadedly connected to the inner surface of the vibration cementing tool body 7. The back pressure valve 601 is threadedly connected to the inner surface of the body 608. The baffle 602 is fixed to the lower end of the back pressure valve 601 and is provided with a flow passage. The baffle 602 is connected to the impeller 604 through the ball bearing 603;

[0081] A connecting sleeve 605 is installed at the lower end of the impeller 604. The connecting sleeve 605 is connected to the eccentric guiding head 607 through the thrust bearing 606.

[0082] Wherein, the back pressure valve 601 is a one-way flow valve, designed with a tongue plate structure. The cover plate and the core valve are sealed through an O-ring. The forward drilling fluid or cement slurry can flow through, and the reverse flow is blocked and can bear pressure, which can ensure that the cement slurry in the cementing annulus will not flow back into the casing;

[0083] The hydraulic drive turbine uses the form of fluid flowing through the impeller 604 to increase pressure by rotation, drives the front guiding head to rotate at high speed, guides the drilling fluid to form a high-speed rotating eddy current, cleans or trims the wellbore, and facilitates the lowering of the pipe string.

[0084] The eccentric structure of the front-stage seeker is different from the conventional centered structure. When encountering resistance during the casing running operation, there is no need to rotate the casing. It can be lifted and then lowered to pass through the difficult-to-enter well section or the reduced-diameter well section where the casing is stuck through eccentricity, guiding the casing string to continue to be lowered.

[0085] Preferably, the travel switch 210 is used to control the control circuit processor 305 on the control circuit board 308 to issue a vibration start signal.

[0086] Preferably, the rotational speed range of the motor 514 is 0 r / min to 1400 r / min.

[0087] Preferably, a plurality of threaded holes are provided at the preset positions of the centering eccentric block 508 and the fixed eccentric block 507, and different combinations of eccentric blocks at different angles are formed by connecting different threaded holes with the bolts 505 and the nuts 510.

[0088] The present invention adjusts the magnitude value of the exciting force by changing the combination of the eccentric blocks. The gap between the vibrating bin body and the transmission shaft is sealed by gaskets.

[0089] The using process of the example of the present invention: During the process of injecting mud for displacement in the cementing operation construction, when the cementing plug descends and passes through the upper joint 1 to reach the trigger start assembly 2, it is bumped and pressed at the plug seat 201 position. The push rod 204 is forced to descend and compress the spring 207 downward. The travel switch trigger rod 208 touches the travel switch 210, and the travel switch 210 starts to issue a vibration start signal to the control circuit processor 305 on the control circuit board 308. The power assembly 4 supplies electric energy to the control assembly 3 and the vibration assembly 5, and the controller starts the motor 514. The rotational speed range of the motor 514 is 0 r / min to 1400 r / min. The motor 514 drives the combination of the fixed eccentric block 507 and the centering eccentric block 508 to rotate, generating radial vibration.

[0090] The preset vibration amplitude is received in advance through the Bluetooth tool of the control circuit board 308. By using the algorithm design and clock design in the control circuit board 308, it vibrates continuously at the amplitude value and frequency point within the set range. The invention can set the vibration time and vibration frequency according to the requirements of the actual cementing site construction.

[0091] Terms such as "first", "second", etc. are used to distinguish similar objects, rather than to describe or represent a specific order or sequence.

[0092] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, methods, articles, or apparatus / devices.

[0093] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A novel vibration cementing tool, characterized in that, it includes an upper joint assembly (1), a trigger start assembly (2), a control assembly (3), a power assembly (4), a vibration assembly (5), a rotary guiding assembly (6) and a vibration cementing tool body (7); One end of the upper joint assembly (1) is detachably and fixedly connected to the vibration cementing tool body (7), and the other end of the upper joint assembly (1) is detachably and fixedly connected to the trigger start assembly (2); The control assembly (3) is arranged on one side of the other end of the trigger start assembly (2), and the control assembly (3) is fixed to the power assembly (4); the power assembly (4) is arranged below the control assembly (3) and fixed; The vibration assembly (5) is arranged below the power assembly (4) and fixed to the power assembly (4); The rotary guiding assembly (6) is arranged below the vibration assembly (5) and is detachably and fixedly connected to the inner surface of the vibration cementing tool body (7).

2. A novel vibration cementing tool according to claim 1, characterized in that, the upper joint assembly (1) includes an upper joint body (101) and an upper joint seal ring (102); The upper joint body (101) is threadedly connected to the vibration cementing tool body (7) through the upper joint seal ring (102).

3. A novel vibration cementing tool according to claim 2, characterized in that, the trigger start assembly (2) includes a rubber plug seat (201), a rubber plug seat seal ring (202), a diversion seat (203), a push rod (204), a disc spring (205), a push rod seat (206), a spring (207), a travel switch trigger rod (208), a travel switch stop piece (209), a travel switch (210), a diversion chamber body (211) and a diversion chamber body seal ring (212); The rubber plug seat (201) is threadedly connected to the upper joint body (101) and is hermetically connected through the rubber plug seat seal ring (202), and a cementing rubber plug capable of moving along it is arranged in the rubber plug seat (201); One end of the rubber plug seat (201) is coaxially fixed to one end of the diversion seat (203), the other end of the diversion seat (203) is fixed to one end of the disc spring (205), and the other end of the disc spring (205) is fixed to the diversion chamber body (211); The push rod (204), the push rod seat (206), the spring (207), the travel switch trigger rod (208), the travel switch stop piece (209) and the travel switch (210) are located inside the rubber plug seat (201), the diversion seat (203) and the diversion chamber body (211); the diversion chamber body (211) is hermetically connected to the vibration cementing tool body (7) through the diversion chamber body seal ring (212); The cementing plug can be lapped with one end of the push rod (204). The push rod (204) is arranged in the push rod seat (206) and moves along it. The push rod seat (206) is fixed to the diversion bin body (211). The other end of the push rod (204) is fixed to one end of the spring (207). The other end of the spring (207) is fixed to the travel switch flap (209). The travel switch flap (209) is fixed to the inner end face of the diversion bin body (211). The other end of the push rod (204) is lapped with the travel switch trigger rod (208), and the travel switch trigger rod (208) moves along its axial direction. The travel switch trigger rod (208) is used to toggle the travel switch flap (209), and the travel switch flap (209) is used to control the on-off of the travel switch (210). The travel switch (210) is used to control the on-off of the control component (3).

4. A novel vibration cementing tool according to claim 3, characterized in that the control component (3) includes a control circuit board (308) and a control circuit housing (310); the control circuit board (308) is connected to the forming switch (210). The control circuit board (308) is fixed to the control circuit housing (310). The control circuit housing (310) is fixed to the power component (4); the components installed on the control circuit board (308) include a motor control circuit switch (301), a charging control circuit switch (302), a battery pack control circuit switch (303), a trigger circuit switch (304), a control circuit processor (305), a control switch I (306), and a control switch II (307); The motor control circuit switch (301) is used to control the start and stop of the vibration component (5). The charging control circuit switch (302) is used to control the start and stop of the charging of the power battery. The battery pack control circuit switch (303) is used to control the start and stop of the power supply of the power battery. The trigger circuit switch (304) is used to connect and disconnect the control circuit board (308). The control circuit processor (305) is used to provide signal outputs for vibration start and stop, and algorithm settings for vibration time and vibration frequency. The control switch I (306) and the control switch II (307) are spare switches.

5. A novel vibration cementing tool according to claim 4, characterized in that the power component (4) includes a power battery skeleton (401), a power battery housing (402), and a power battery bottom plate (403); Multiple groups of the power battery skeletons (401) are evenly arranged along the axial direction of the vibration cementing tool body (7) and are connected to each other. They are arranged inside the power battery housing (402). Both the upper and lower ends of the power battery housing (402) are fixed to the power battery bottom plate (403). The power battery bottom plate (403) is respectively fixed to the control circuit housing (310) and the vibration component (5).

6. A novel vibration cementing tool according to claim 5, characterized in that, the vibration assembly (5) consists of a motor housing (501), a sealing ring on the motor housing (502), a coupling (503), a transmission shaft (504), bolts (505), a flat keyway (506), a fixed eccentric block (507), an alignment eccentric block (508), a sealing ring under the motor housing (509), nuts (510), ball bearings (511), shaft retaining rings (512), a vibration chamber body (513) and a motor (514); the power battery bottom plate (403) is fixed to the motor housing (501) through the sealing ring on the motor housing (502), a motor (514) is fixed inside the motor housing (501), the output shaft of the motor (514) is coaxially fixed to the transmission shaft (504) through the coupling (503), a flat keyway (506) is provided on the outer circumferential surface of the transmission shaft (504), the transmission shaft (504) is key-connected to the fixed eccentric block (507) through the flat keyway (506), and the fixed eccentric block (507) is adjustably fixed to the alignment eccentric block (508) through the bolts (505) and the nuts (510); the bottom end of the transmission shaft (504) is hermetically connected to the bottom end of the motor housing (501) through the shaft retaining ring (512); the motor housing (501) is threadedly connected to the vibration chamber body (513) and hermetically connected through the sealing ring under the motor housing (509), a ball bearing (511) is installed at the lower end of the vibration chamber body (513), and the ball bearing (511) is bearing-connected to the transmission shaft (504).

7. A novel vibration cementing tool according to claim 6, characterized in that, the rotary guiding assembly (6) includes a back pressure valve (601), a baffle (602), a ball bearing (603), an impeller (604), a connecting sleeve (605), a thrust bearing (606), an eccentric guiding head (607) and a body (608); the body (608) is threadedly connected to the inner surface of the vibration cementing tool body (7), the back pressure valve (601) is threadedly connected to the inner surface of the body (608), the baffle (602) is fixed to the lower end of the back pressure valve (601) and is provided with a flow passage, and the baffle (602) is connected to the impeller (604) through the ball bearing (603); a connecting sleeve (605) is installed at the lower end of the impeller (604), and the connecting sleeve (605) is connected to the eccentric guiding head (607) through the thrust bearing (606).

8. A novel vibration cementing tool according to claim 7, characterized in that, the travel switch (210) is used to control the control circuit processor (305) on the control circuit board (308) to send out a vibration start signal.

9. A novel vibration cementing tool according to claim 8, characterized in that, The rotational speed range of the motor (514) is 0 r / min to 1400 r / min.

10. A novel vibration cementing tool according to claim 9, characterized in that, a plurality of threaded holes are provided at preset positions of the centering eccentric block (508) and the fixed eccentric block (507), and different combinations of eccentric blocks at different angles are formed by connecting different threaded holes with the bolts (505) and the nuts (510).

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