CN214091715U

CN214091715U - Hydraulic oscillator

Info

Publication number: CN214091715U
Application number: CN202023295511.0U
Authority: CN
Inventors: 刘立江; 尹永清; 杨博生; 王聚成; 陆立中; 尹永奇; 田海岗; 韩青林
Original assignee: Orient Energy & Technologies Co ltd
Current assignee: Orient Energy & Technologies Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-31
Anticipated expiration: 2030-12-30

Abstract

The application provides a hydraulic oscillator, which comprises an oscillation module and a control module; the oscillation module comprises a static joint, a stator and a rotor; the rotor is rotatably arranged in the stator; the rotor is provided with a rotor central channel and a rotor side channel; one end of the static joint is inserted in the stator, and is provided with a joint central channel corresponding to the rotor central channel and a joint side channel corresponding to the rotor side channel; the control module comprises a control shell, a controller, a motor telescopic module and a small valve head, wherein the controller, the motor telescopic module and the small valve head are arranged in the control shell; the controller is connected with the motor telescopic module and drives the small valve head to be inserted into or pulled out of the rotor central channel by controlling the motor telescopic module. The hydraulic oscillator provided by the application can not work under the condition of compound drilling and work under the condition of directional drilling, namely, axial force is provided, and meanwhile, no influence is caused on other equipment.

Description

Hydraulic oscillator

Technical Field

The application relates to the technical field of well drilling, in particular to a hydraulic oscillator.

Background

With the development of the oil industry, the way of drilling oil fields, such as directional drilling, compound drilling and the like, is more and more, the oil field drilling can not be separated from the hydraulic oscillator, and the existing hydraulic oscillator can not be adjusted according to different drilling ways.

Disclosure of Invention

The present application aims to address the above problems and provide a hydroscillator.

The application provides a hydraulic oscillator, which comprises an oscillation module and a control module;

the oscillation module comprises a static joint, a stator and a rotor; the rotor is rotatably mounted within the stator; a rotor central channel and a rotor side channel are arranged on the rotor; one end of the static joint is inserted in the stator, and a joint central channel corresponding to the rotor central channel and a joint side channel corresponding to the rotor side channel are arranged on the static joint;

the control module comprises a control shell, a controller, a motor telescopic module and a small valve head, wherein the controller, the motor telescopic module and the small valve head are arranged in the control shell; the controller is connected with the motor telescopic module, and the small valve head is driven to be inserted into the rotor central channel or pulled out of the rotor central channel by controlling the motor telescopic module.

According to the technical scheme provided by some embodiments of the present application, the number of the rotor side channels and the number of the joint side channels are four; the four rotor side channels are uniformly distributed along the circumferential direction of the rotor; the four joint side channels are uniformly distributed along the circumferential direction of the static joint; the diameter size of the rotor side channel is consistent with the diameter size of the joint side channel.

According to the technical scheme provided by some embodiments of the present application, the motor telescopic module comprises a motor; the output end of the motor is fixedly connected with the lead screw; a screw nut is connected to the screw through threads; the small valve head is connected with the screw nut.

According to the technical scheme provided by some embodiments of the application, a centralizing ring is installed at one end of the stator, which is far away from the static joint; the righting ring is sleeved on the outer wall of the rotor.

According to the technical scheme provided by some embodiments of the application, a battery module is further arranged in the control shell; the battery module is used for supplying power for the controller and the motor telescopic module.

Compared with the prior art, the beneficial effect of this application: when the hydraulic oscillator is used, the controller detects the rotation condition of a drilling string in real time, and controls the motor telescopic module to drive the small valve head to be inserted into the rotor central channel or pulled out of the rotor central channel according to the detected rotation condition of the drilling string, so that the purpose of controlling the internal fluid channel of the hydraulic oscillator is achieved, the hydraulic oscillator does not work under the condition of composite drilling, works under the condition of directional drilling, namely provides axial force, and meanwhile, no influence is caused on other equipment.

Drawings

Fig. 1 is a schematic structural diagram of a hydroscillator provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a rotor of a hydraulic oscillator provided in an embodiment of the present application.

The text labels in the figures are represented as:

1. a stationary joint; 2. a stator; 3. a rotor; 4. a rotor center channel; 5. a rotor side channel; 6. a joint central passage; 7. a joint side channel; 8. a controller; 9. a small valve head; 10. a motor telescopic module; 11. a righting ring; 12. a battery module is provided.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1 and 2, the present embodiment provides a hydraulic oscillator, which is connected to a drilling string and includes an oscillation module and a control module.

The oscillation module comprises a static joint 1, a stator 2 and a rotor 3; the rotor 3 is rotatably mounted in the stator 2; the rotor 3 is a screw; a rotor central channel 4 and a rotor side channel 5 are arranged on the rotor 3; one end of the static joint 1 is inserted in the stator 2, and a joint central channel 6 corresponding to the rotor central channel 4 and a joint side channel 7 corresponding to the rotor side channel 5 are arranged on the static joint; the number of the rotor side channels 5 and the number of the joint side channels 7 are four; the four rotor side channels 5 are uniformly distributed along the circumferential direction of the rotor 3; the four joint side channels 7 are uniformly distributed along the circumferential direction of the static joint 1; the diameter of the rotor side channel 5 is the same as the diameter of the joint side channel 7; the diameter size of the joint central channel 6 is consistent with the diameter size of the rotor central channel 4; a centralizing ring 11 is arranged at one end of the stator 2 far away from the static joint 1; the righting ring 11 is sleeved on the outer wall of the rotor 3.

The control module comprises a control shell, and a controller 8, a motor telescopic module 10 and a small valve head 9 which are arranged in the control shell; the controller 8 is connected with the motor telescopic module 10, and drives the small valve head 9 to be inserted into the rotor central channel 4 or pulled out of the rotor central channel 4 by controlling the motor telescopic module 10; the motor telescopic module 10 comprises a motor; the output end of the motor is fixedly connected with the lead screw; a screw nut is connected to the screw through threads; the small valve head 9 is connected with the screw nut; a battery module 12 is also arranged in the control shell; the battery module 12 is used for supplying power to the controller 8 and the motor expansion module 10.

When the hydraulic oscillator provided by the embodiment is used, the controller 8 detects the rotation condition of the drilling string in real time and controls the motor to rotate correspondingly according to the detected rotation condition, specifically, the controller 8 detects whether the drilling string rotates within 60 seconds in real time, when the rotation does not occur (namely, the rotation is the corresponding condition of directional drilling), the controller controls the motor to rotate, the motor drives the small valve head 9 to be inserted into the rotor central channel 4 through the transmission of the lead screw and the lead screw nut, the rotor central channel 4 is blocked, mud passes through the space between the rotor 3 and the stator 2, the pressure difference of the mud is consumed, the rotor 3 rotates relative to the stator 2, the static joint 1 and the rotor 3 rotate relatively, the relative positions of the joint side channel 7 and the rotor side channel 5 change periodically, and the throughput of the mud also changes periodically, because the total discharge capacity of the mud is not changed, the periodic change of the pressure difference can be generated, namely the periodic axial force is generated; when the rotation (corresponding to the composite drilling) occurs, the controller 8 controls the motor to rotate in the opposite direction, so as to drive the small valve head 9 to separate from the rotor central channel 4, the slurry passes through the rotor central channel 4, the rotor 3 and the stator 2 do not digest the slurry pressure difference, and the axial force is not generated, namely the rotor 3 does not rotate relative to the stator 2. The hydraulic oscillator can not work under the condition of compound drilling and can work under the condition of directional drilling, namely, axial force is provided, and meanwhile, no influence is caused on the rest equipment.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are no specific structures which are objectively limitless due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features mentioned above can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.

Claims

1. A hydraulic oscillator is characterized by comprising an oscillation module and a control module;

the oscillation module comprises a static joint (1), a stator (2) and a rotor (3); the rotor (3) is rotatably mounted in the stator (2); a rotor central channel (4) and a rotor lateral channel (5) are arranged on the rotor (3); one end of the static joint (1) is inserted in the stator (2), and a joint central channel (6) corresponding to the rotor central channel (4) and a joint side channel (7) corresponding to the rotor side channel (5) are arranged on the static joint;

the control module comprises a control shell, a controller (8), a motor telescopic module (10) and a small valve head (9), wherein the controller, the motor telescopic module and the small valve head are arranged in the control shell; the controller (8) is connected with the motor telescopic module (10), and the small valve head (9) is driven to be inserted into the rotor central channel (4) or pulled out from the rotor central channel (4) by controlling the motor telescopic module (10).

2. The hydroscillator of claim 1, characterized in that the number of rotor side channels (5) and joint side channels (7) is four; the four rotor side channels (5) are uniformly distributed along the circumferential direction of the rotor (3); the four joint side channels (7) are uniformly distributed along the circumferential direction of the static joint (1); the diameter of the rotor side channel (5) is consistent with the diameter of the joint side channel (7).

3. The hydroscillator of claim 1 wherein said motor expansion and contraction module (10) comprises a motor; the output end of the motor is fixedly connected with the lead screw; a screw nut is connected to the screw through threads; the small valve head (9) is connected with the screw nut.

4. The hydroscillator according to claim 1, characterized in that the end of the stator (2) remote from the stationary joint (1) is fitted with a centering ring (11); the righting ring (11) is sleeved on the outer wall of the rotor (3).

5. The hydroscillator of claim 1 wherein a battery module (12) is further disposed within said control housing; the battery module (12) is used for supplying power to the controller (8) and the motor telescopic module (10).