CN212774141U - High-amplitude hydraulic oscillator - Google Patents

Abstract

The utility model discloses a high amplitude hydraulic oscillator, including integral key shaft, spline nipple joint, uide bushing, dish spring, dish stopper casing, washing pipe, one-level energization casing, energization stopper pipe, second grade energization casing and energization piston, the cover is equipped with in proper order on the integral key shaft and rights nipple joint, spline nipple joint and dish spring, and the dish spring outside is equipped with the dish stopper casing with spline nipple joint fixed connection, washing pipe one end and dish spring inarching, the other end are equipped with energization stopper pipe and energization piston in proper order, and the cover is equipped with one-level energization casing on the washing pipe, is equipped with spacing protruding edge on the washing pipe outer wall, installs the spring between spacing protruding edge and the one-level energization casing, and the one-level energization casing other end is equipped with second grade energization casing. The utility model discloses a set up spacing protruding edge on the wash pipe to installation spring between spacing protruding edge and one-level energizing shell, through dish spring and spring interact, can promote the wash pipe reciprocating vibration between dish spring and spring after single compression dish spring, thereby increase hydraulic oscillator's vibration amplitude.

Description

High-amplitude hydraulic oscillator

Technical Field

The utility model relates to a drilling equipment field especially relates to a high amplitude hydraulic oscillator.

Background

In the drilling process of the horizontal well, the drilling tool can generate large friction resistance in a well section with large curvature of a well bore or an overlong horizontal section, the pressure supporting phenomenon is serious, and the drilling pressure cannot be effectively applied. The problems of large friction and pressure supporting not only seriously affect the mechanical drilling speed of a horizontal well, but also easily cause the occurrence of underground complex accidents such as sticking and blocking, and the like, so that the friction force must be reduced by adopting effective measures.

The existing hydraulic oscillator uses well-rotating liquid as a power source, liquid energy is converted into mechanical energy through a power assembly, high-frequency pressure pulses which change periodically are accompanied, and the generated pressure pulses act on an axial oscillating mechanism to enable the axial oscillating mechanism to generate high-frequency creeping motion along the axial direction. However, the existing hydraulic oscillator is realized by disc springs when in use, but the existing disc springs are usually only one group, and the oscillating force generated by one group of disc springs in the oscillator is limited.

Disclosure of Invention

An object of the utility model is to provide a high amplitude hydraulic oscillator.

The utility model aims at realizing through the following technical scheme:

a high-amplitude hydraulic oscillator comprises a spline shaft, a spline nipple, a guide sleeve, a disc spring, a disc plug shell, a flushing pipe, a primary energy-increasing shell, an energy-increasing plug pipe, a secondary energy-increasing shell and an energy-increasing piston, wherein the spline shaft is hollow, a taper sleeve connected with a drill column is processed at one end of the spline shaft, the spline nipple is sleeved at the other end of the spline shaft through the guide sleeve, a centering nipple for keeping the concentricity of the spline shaft and the spline nipple is further arranged between the spline nipple and the spline shaft, the disc spring is sleeved on the spline shaft at the end, away from the centering nipple, of the spline nipple, the disc plug shell fixedly connected with the spline nipple is arranged outside the disc spring, the flushing pipe is arranged between the spline shaft and the disc plug shell, one end of the flushing pipe is abutted against the disc spring, the primary energy-increasing shell for supporting the disc plug shell is sleeved on the flushing pipe, a limiting convex edge is extended from the outer wall of one end, and a spring is arranged on the flushing pipe between the, the energy increasing plug pipe is sleeved in the first-stage energy increasing shell and used for pushing the flushing pipe to compress the disc spring, the energy increasing plug pipe is sleeved with a second-stage energy increasing shell fixedly connected with the first-stage energy increasing shell, the energy increasing plug pipe on the inner side of the second-stage energy increasing shell is sleeved with an energy increasing piston, and a conical connecting sleeve connected with a drill string is machined at one end, far away from the first-stage energy increasing shell, of the second-stage energy increasing shell.

A self-balancing piston is further sleeved between the flushing pipe and the disc plug shell.

And a plurality of pressure relief channels for communicating the self-balancing piston and the disc spring are processed on the disc plug shell.

Install the sealing washer between energizing plug pipe and the one-level energizing shell, processing has the groove of dodging on the energizing plug pipe between sealing washer and the second grade energizing shell, processing has and dodges the through-hole of groove intercommunication on the energizing plug pipe.

The utility model provides a high amplitude hydraulic oscillation utensil's beneficial effect is:

(1) the washing pipe is provided with the limiting convex edge, the spring is arranged between the limiting convex edge and the first-stage energizing shell, and the washing pipe can be pushed to vibrate back and forth between the disc spring and the spring after the disc spring is compressed once through the interaction of the disc spring and the spring, so that the vibration amplitude of the hydraulic oscillator is increased;

(2) through setting up the nipple joint of righting of installation between integral key shaft and spline nipple joint, can guarantee the concentricity of integral key shaft and spline nipple joint to the thrust of the last dish spring production of suit of integral key shaft promotes along the axis of oscillator when guaranteeing the oscillation, can prevent to damage the great energy loss that causes because of the kinetic energy that the integral key shaft skew caused.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram provided in the embodiment of the present invention.

Fig. 2 is a schematic view of a part of a structure provided by an embodiment of the present invention.

Fig. 3 is a schematic diagram of a part of a structure provided in an embodiment of the present invention.

Fig. 4 is a schematic view of a part of a structure provided by the embodiment of the present invention.

Reference numerals: 1. a spline shaft; 101. a taper sleeve; 2. a spline nipple; 3. a guide sleeve; 4. a disc spring; 5. a disc plug housing; 501. a pressure relief channel; 6. washing the pipe; 601. a limiting bulge; 7. a first-stage energizing housing; 8. an energy increasing plug tube; 801. a seal ring; 802. an avoidance groove; 803. a through hole; 9. a secondary energization shell; 901. a conical nipple; 10. an energizing piston; 11. righting the short section; 12. a self-balancing piston; 13. a spring.

Detailed Description

Examples

As shown in fig. 1 to 4, the hydraulic oscillator provided in this embodiment as shown in fig. 1 to 4 includes a spline shaft 1, a spline nipple 2, a guide sleeve 3, a disc spring 4, a disc plug housing 5, a washpipe 6, a primary energization housing 7, an energization plug pipe 8, a secondary energization housing 9 and an energization piston 10, the spline shaft 1 is hollow, a channel for liquid to flow is reserved in the middle of the spline shaft 1, a taper sleeve 101 connected to a drill string is processed at one end of the spline shaft 1, a spline nipple 2 is sleeved at the other end of the spline shaft 1, the spline nipple 2 is sleeved on the spline shaft 1 through the guide sleeve 3, a centering nipple 11 for keeping the spline shaft 1 and the spline nipple 2 concentric is further arranged between the spline nipple 2 and the spline shaft 1, the disc spring 4 is sleeved on the spline shaft 1 at the end of the spline nipple 2 far from the centering 11, the disc plug housing 5 fixedly connected to the spline nipple 2 is arranged outside the disc spring 4, the washing pipe 6 is arranged between the spline shaft 1 and the disc plug shell 5, one end of the washing pipe 6 is abutted to the disc spring 4, the disc spring 4 is arranged in a space enclosed by the spline shaft 1, the washing pipe 6 and the disc plug shell 5, the washing pipe 6 is sleeved with the first-stage energy-increasing shell 7 for supporting the disc plug shell 5, the washing pipe 6 is abutted to the outer wall of one end of the first-stage energy-increasing shell 7 and extends to a limited convex edge 601, the washing pipe 6 between the limited convex edge 601 and the first-stage energy-increasing shell 7 is provided with a spring 13, the washing pipe 6 which is reversely pushed by the disc spring 4 can move to the other end through the mutual matching of the spring 13 and the disc spring 4, the limited convex edge 601 can compress the spring 13, then the spring 13 exerts a reaction force on the limited convex edge 601 to ensure that the washing pipe 6 reciprocates between the spring 13 and the disc spring 4, so as to generate higher amplitude, one end of the first-stage energy-increasing shell 7, which is close to the disc plug shell 5, is conical, and the first-stage energy-, the disc plug is used for jacking a disc plug shell 5, a self-balancing piston 12 is further sleeved between a flushing pipe 6 and the disc plug shell 5, the concentricity of the flushing pipe 6 can be guaranteed when the flushing pipe 6 reciprocates through the self-balancing piston 12, loss of kinetic energy carried by the flushing pipe 6 is reduced, an energy increasing plug pipe 8 for pushing the flushing pipe 6 to compress a disc spring 4 is sleeved in a first-stage energy increasing shell 7, a second-stage energy increasing shell 9 fixedly connected with the first-stage energy increasing shell 7 is sleeved on the energy increasing plug pipe 8, one end, close to the first-stage energy increasing shell 7, of the second-stage energy increasing shell 9 is conical and is inserted into the first-stage energy increasing shell 7 and used for supporting the first-stage energy increasing shell 7, a drill string energy increasing piston 10 is sleeved on the energy increasing plug pipe 8 on the inner side of the second-stage energy increasing shell 9, and one end, far away from the first-stage energy increasing shell 7, of the second-.

In order to prevent the pressure generated when the disc spring 4 is compressed from being uneven, a plurality of pressure relief channels 501 communicating the self-balancing piston 12 with the disc spring 4 are processed on the disc plug shell 5, and when the disc spring 4 is compressed through the pressure relief channels 501, the self-balancing piston 12 slides on the flushing pipe 6 under the action of pressure to ensure the pressure balance in the disc spring 4, thereby ensuring the pressure of the disc spring 4 to be released.

In order to improve the compression force generated by the flushing pipe 6 on the disc spring 4, a sealing ring 801 is arranged between the energy increasing plug pipe 8 and the first-stage energy increasing shell 7, an avoiding groove 802 is processed on the energy increasing plug pipe 8 between the sealing ring 801 and the second-stage energy increasing shell 9, and a through hole 803 communicated with the avoiding groove 802 is processed on the energy increasing plug pipe 8. When the energizing piston 10 pushes the energizing plug pipe 8, hydraulic power can enter the avoiding groove 802 through the through hole 803, and the thrust generated by the flushing pipe 6 to the disc spring 4 is increased by increasing the pressure in the avoiding groove 802, so that larger thrust is obtained, and the oscillating force during oil well exploitation is ensured.

The utility model discloses a use method is:

the water pressure passes through the middle part of the spline shaft 1 and then acts on the energy increasing piston 10 to generate a back thrust through the energy increasing piston 10, meanwhile, the water pressure passes through the through hole 803 and enters the avoiding groove 802 to generate a thrust for the energy increasing plug tube 8 in the avoiding groove 802, under the double thrust generated by the energy increasing piston 10 and the avoiding groove 802, the flushing tube 6 is pushed to compress the disc spring 4, so that the disc spring 4 generates a stronger back thrust, when the disc spring 4 is compressed, the self-balancing piston 12 reciprocates on the flushing tube 6 through the pressure relief channel 501, so that the pressure when the disc spring 4 is compressed is balanced, thereby ensuring that the disc spring 4 has a stronger back thrust, after the disc spring 4 pushes the flushing tube 6 backwards, the limiting convex edge 601 on the flushing tube 6 compresses the spring 13, after the spring 13 is completely compressed, the elastic force is exerted on the limiting convex edge 601, and acts on the flushing tube 6 through the limiting convex edge 601, so that the flushing tube moves towards the disc spring 4 again, through the interact of spring 13 and dish spring 4, drive the reciprocating motion of wash pipe high-amplitude between spring 13 and dish spring 4 to guarantee hydraulic oscillator's efficiency to self-balancing piston 12 can also guarantee the concentricity of wash pipe 6 under the balanced condition of guaranteeing dish spring 4 pressure, in order to reduce the energy loss of wash pipe 6 production at the reciprocating motion in-process.

The above is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and the utility model should be covered in the protection scope of the present invention. It should be noted that structures or components illustrated in the drawings are not necessarily drawn to scale, and descriptions of well-known components and processing techniques and technologies are omitted to avoid unnecessarily limiting the invention.

Claims (4)

1. A high amplitude hydroscillator, comprising: the energy-increasing drill bit comprises a spline shaft, a spline short section, a guide sleeve, a disc spring, a disc plug shell, a flushing pipe, a primary energy-increasing shell, an energy-increasing plug pipe, a secondary energy-increasing shell and an energy-increasing piston, wherein the spline shaft is hollow, a taper sleeve connected with a drill column is processed at one end of the spline shaft, the spline short section is arranged at the other end of the spline shaft through the guide sleeve, a centering short section for keeping the concentricity of the spline shaft and the spline short section is further arranged between the spline short section and the spline shaft, the disc spring is sleeved on the spline shaft at the end, far away from the centering short section, of the spline short section, the disc plug shell fixedly connected with the spline short section is arranged outside the disc spring, the flushing pipe is arranged between the spline shaft and the disc plug shell, one end of the flushing pipe is abutted against the disc spring, the primary energy-increasing shell for supporting the disc plug body is sleeved on the flushing pipe, a limiting convex edge is extended on the, the energy increasing plug pipe is sleeved in the first-stage energy increasing shell and used for pushing the flushing pipe to compress the disc spring, the energy increasing plug pipe is sleeved with a second-stage energy increasing shell fixedly connected with the first-stage energy increasing shell, the energy increasing plug pipe on the inner side of the second-stage energy increasing shell is sleeved with an energy increasing piston, and a conical connecting sleeve connected with a drill string is machined at one end, far away from the first-stage energy increasing shell, of the second-stage energy increasing shell.

2. The high amplitude hydroscillator of claim 1 wherein: a self-balancing piston is further sleeved between the flushing pipe and the disc plug shell.

3. The high amplitude hydroscillator of claim 1 wherein: and a plurality of pressure relief channels for communicating the self-balancing piston and the disc spring are processed on the disc plug shell.

4. The high amplitude hydroscillator of claim 1 wherein: install the sealing washer between energizing plug pipe and the one-level energizing shell, processing has the groove of dodging on the energizing plug pipe between sealing washer and the second grade energizing shell, processing has and dodges the through-hole of groove intercommunication on the energizing plug pipe.

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