CN210829060U

CN210829060U - Drilling speed-up tool

Info

Publication number: CN210829060U
Application number: CN201921708778.2U
Authority: CN
Inventors: 刘勇; 韩玉平; 张启; 秦庆龙; 孙明明; 王丹; 杨秋悦; 和乾; 彭瑜; 杜江; 高健; 刘涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-06-23
Anticipated expiration: 2029-10-14

Abstract

The utility model belongs to the drilling equipment field especially relates to a well drilling speed-up instrument, take place the mechanism including power unit and vibrations, power unit includes pump barrel and screw rod, and the screw rod cartridge is in the pump barrel to constitute single screw rod pumping mechanism jointly with the pump barrel, vibrations take place the mechanism and include shell, first semi-axis, lower semi-axis and dish spring, the upper end of shell with the lower extreme fixed connection of pump barrel, the upper end of first semi-axis with the lower extreme fixed connection of screw rod is provided with the fluted disc on the lower terminal surface of first semi-axis, be provided with on the up end of lower semi-axis with go up the lower fluted disc of fluted disc meshing, the dish spring support the downside of fluted disc down, the motion trend that the fluted disc kept upwards fluted disc to be close to constantly under the spring action of dish spring down. The vibration generation mechanism consisting of the upper fluted disc, the lower fluted disc and the disc spring is adopted, and when the screw rod rotates rapidly under the action of liquid flow, the vibration frequency is very high, so that the speed-up performance of the speed-up tool is greatly improved.

Description

Drilling speed-up tool

Technical Field

The utility model belongs to the technical field of drilling equipment, especially, relate to a well drilling speed-up instrument.

Background

In oilfield drilling construction, in order to increase the drilling speed, a speed increasing tool is required. The principle of the speed-up tool is that the kinetic energy of the drilling fluid flowing is utilized to enable the drill bit to generate regular vibration, so that the breaking efficiency of the rock is accelerated, and the speed is increased. However, the current speed-up tools completely depend on the throttling effect on the drilling fluid to generate vibration, the vibration frequency is low, and the speed-up effect is not ideal.

Disclosure of Invention

The utility model discloses a vibrations to in the speeding instrument take place the mechanism and improve, improved vibration frequency to the speeding effect has obviously been improved.

The utility model provides a drilling speed-up tool, which comprises a power mechanism and a vibration generating mechanism, wherein the power mechanism comprises a pump cylinder and a screw rod, the screw rod is inserted in the pump cylinder, thereby forming a single screw pumping mechanism together with the pump barrel, the vibration generating mechanism comprises a shell, an upper half shaft, a lower half shaft and a disc spring, the upper end of the shell is fixedly connected with the lower end of the pump barrel, the upper end of the upper half shaft is fixedly connected with the lower end of the screw, an upper fluted disc is arranged on the lower end surface of the upper half shaft, a lower fluted disc meshed with the upper fluted disc is arranged on the upper end surface of the lower half shaft, the disc spring is supported at the lower side of the lower fluted disc, the lower fluted disc keeps the moving trend of approaching the upper fluted disc constantly under the elastic force of the disc spring, the center of the upper half shaft and the center of the lower half shaft are both provided with a liquid passing channel for drilling fluid to pass through, the side surface of the upper half shaft is provided with a liquid passing hole, and the lower half shaft is connected with the shell through a spline.

The single-screw pumping mechanism is adopted as a power mechanism, when drilling fluid enters a gap between the pump barrel and the screw from the upper end, the screw is pushed to rotate by liquid flow, and therefore reliable power output is provided. The vibration generation mechanism consisting of the upper fluted disc, the lower fluted disc and the disc spring is adopted, the lower half shaft does not rotate when the upper half shaft rotates, so that the upper fluted disc and the lower fluted disc move relatively, the upper fluted disc and the lower fluted disc rotate relative to each other by one tooth to generate vibration once, and when the screw rod rotates rapidly under the action of liquid flow, the vibration frequency is very high, so that the speed-up performance of the speed-up tool is greatly improved.

As an improvement of the utility model, the utility model discloses downside at the dish spring is provided with adjusting shim, through the pretightning force that changes adjusting shim's thickness (or the quantity of increase and decrease adjusting shim) adjustable dish spring, the reset rate of fluted disc under the change from this to change the jarring frequency, in order to adapt to different work condition.

Drawings

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

In the figure: 1-pump cylinder, 2-screw, 3-upper half shaft, 4-liquid passing hole, 5-shell, 6-upper fluted disc, 7-lower fluted disc, 8-disc spring, 9-adjusting gasket, 10-lower half shaft, 11-drill bit and 12-liquid passing channel.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 1, the present embodiment includes a power mechanism and a vibration generating mechanism, wherein the power mechanism converts the kinetic energy of the drilling fluid into mechanical energy and provides the mechanical energy to the vibration generating mechanism. The vibration generating mechanism generates high-frequency vibration under the driving of power.

The power mechanism comprises a pump barrel 1 and a screw rod 2, and the screw rod 2 is inserted in the pump barrel 1 so as to form a single-screw pumping mechanism together with the pump barrel 1. Single screw pumping mechanisms, i.e. single screw pumps, are one type of positive displacement pumps that produce a pumping effect by a change in volume. In the conventional single screw pump, the function is to pump liquid by the rotation of the screw under the stress, while the utility model adopts the same structure and completes the opposite function, the invention drives the screw 2 to rotate by the liquid flow, and then generates the power source. A single-screw pumping mechanism is adopted as a power mechanism, when drilling fluid enters a gap between the pump barrel 1 and the screw 2 from the upper end, the screw 2 is pushed to rotate by liquid flow, and therefore reliable power output is provided.

The vibration generation mechanism comprises a shell 5, an upper half shaft 3, a lower half shaft 10 and a disc spring 8, the upper end of the shell 5 is fixedly connected with the lower end of the pump barrel 1, the upper end of the upper half shaft 3 is fixedly connected with the lower end of the screw rod 2, an upper fluted disc 6 is arranged on the lower end face of the upper half shaft 3, a lower fluted disc 7 meshed with the upper fluted disc 6 is arranged on the upper end face of the lower half shaft 10, the disc spring 8 is supported on the lower side of the lower fluted disc 7, the lower fluted disc 7 keeps the motion trend that the upper fluted disc 6 is close to under the elastic action of the disc spring 8, the centers of the upper half shaft 3 and the lower half shaft 10 are respectively provided with a liquid passing channel 12 for drilling fluid to pass through, the side face of the upper half shaft 3 is provided with a liquid passing hole 4, and the lower half shaft 10 is connected with the shell 5 through splines so as to. The vibration generation mechanism consisting of the upper fluted disc, the lower fluted disc and the disc spring 8 is adopted, the lower half shaft 10 does not rotate when the upper half shaft 3 rotates, so that the upper fluted disc 6 and the lower fluted disc 7 move relatively, the upper fluted disc and the lower fluted disc rotate relatively by one tooth to generate vibration once, and when the screw rod 2 rotates rapidly under the action of liquid flow, the vibration frequency is very high, so that the speed-up performance of the speed-up tool is greatly improved.

The utility model discloses downside at dish spring 8 is provided with adjusting shim 9, through the adjustable pretightning force of dish spring 8 of the thickness (or the quantity of increase and decrease adjusting shim 9) that changes adjusting shim 9, changes fluted disc 7's the speed of resetting from this to change the jarring frequency, in order to adapt to different work condition.

Claims

1. A drilling acceleration tool, characterized by: the vibration pump comprises a power mechanism and a vibration generating mechanism, wherein the power mechanism comprises a pump barrel (1) and a screw rod (2), the screw rod (2) is inserted into the pump barrel (1) so as to jointly form a single-screw pumping mechanism with the pump barrel (1), the vibration generating mechanism comprises a shell (5), an upper half shaft (3), a lower half shaft (10) and a disc spring (8), the upper end of the shell (5) is fixedly connected with the lower end of the pump barrel (1), the upper end of the upper half shaft (3) is fixedly connected with the lower end of the screw rod (2), an upper fluted disc (6) is arranged on the lower end surface of the upper half shaft (3), a lower fluted disc (7) meshed with the upper fluted disc (6) is arranged on the upper end surface of the lower half shaft (10), the disc spring (8) is supported on the lower side of the lower fluted disc (7), and the lower fluted disc (7) keeps the motion trend of approaching to the upper fluted disc (6) constantly under the action, the center of the upper half shaft (3) and the center of the lower half shaft (10) are both provided with a liquid passing channel (12) for drilling fluid to pass through, the side surface of the upper half shaft (3) is provided with a liquid passing hole (4), and the lower half shaft (10) is connected with the shell (5) through a spline.

2. The well acceleration tool of claim 1, characterized in that: an adjusting gasket (9) is arranged on the lower side of the disc spring (8).