CN212898299U

CN212898299U - Turbine combined screw drill

Info

Publication number: CN212898299U
Application number: CN202021435546.7U
Authority: CN
Inventors: 王春生; 李云勇; 韩遇林
Original assignee: Hebei Lisen Petroleum Machinery Co ltd
Current assignee: Hebei Lisen Petroleum Machinery Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-04-06
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a turbine combination screw drilling tool, including the drilling rod body, be provided with turbine assembly, upper cardan shaft assembly, motor assembly, lower cardan shaft assembly and transmission shaft assembly in the drilling rod body, the lower extreme of transmission shaft assembly is provided with the drill bit, turbine assembly includes the turbine shaft of being connected with upper cardan shaft assembly, and upper cardan shaft assembly lower extreme is connected with motor assembly, be provided with a plurality of turbine stators in the drilling rod body, be provided with a plurality of turbine rotors on the turbine shaft between the turbine stators; the utility model discloses set up the turbine assembly in motor assembly's upper end, high-speed mud can play acceleration effect to motor assembly when passing through the turbine assembly, promotes motor assembly's output rotational speed under the condition of the output moment of torsion that does not influence motor assembly, has turbine drilling tool's high efficiency and screw drilling tool's high moment of torsion effect simultaneously.

Description

Turbine combined screw drill

Technical Field

The utility model relates to a screw rod drilling tool technical field especially relates to turbine combination screw rod drilling tool.

Background

The oil drilling tool comprises a turbine drilling tool and a screw drilling tool, for example, the utility model with the publication number of CN203452969U discloses a high-efficiency turbine drilling tool, which comprises a thrust bearing, a main shaft, a middle bearing, a turbine stator and rotor component, a lower bearing, an alloy drill bit and a shell, slurry is introduced into the turbine drilling tool, a turbine rotor is driven to rotate by the flow velocity, the main shaft drives the drill bit to rotate to drill a well, the turbine drilling tool has the advantages of high rotating speed and small torque, the drilling efficiency is higher for soft geology, and the turbine drilling tool is not suitable for harder geology, the screw drilling tool comprises a main body, a bypass valve assembly, a motor assembly, a universal shaft assembly, a transmission shaft assembly and a drill bit, the slurry is introduced into the screw drilling tool, the pressure of the slurry drives the screw of the motor assembly to perform planetary rotation, then the transmission shaft assembly is, but the efficiency of drilling is slow and there is room to improve efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide turbine combination screw drilling tool to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the turbine combined screw drilling tool comprises a drilling rod body, wherein a turbine assembly, an upper universal shaft assembly, a motor assembly, a lower universal shaft assembly and a transmission shaft assembly are arranged in the drilling rod body, a drill bit is arranged at the lower end of the transmission shaft assembly, the turbine assembly comprises a turbine shaft connected with the upper universal shaft assembly, the lower end of the upper universal shaft assembly is connected with the motor assembly, a plurality of turbine stators are arranged in the drilling rod body, and a plurality of turbine rotors are arranged on the turbine shaft between the turbine stators.

Further, the upper part of the turbine shaft can move up and down and is provided with a movable rotor, the movable rotor is matched with the turbine shaft through a spline, and a spring tending to force the turbine shaft to move upwards is arranged on the turbine shaft.

Further, a thrust bearing is arranged in the drill rod body.

The above technical scheme of the utility model following beneficial effect has: the utility model discloses set up the turbine assembly in motor assembly's upper end, high-speed mud can play acceleration effect to motor assembly when passing through the turbine assembly, promotes motor assembly's output rotational speed under the condition of the output moment of torsion that does not influence motor assembly, has turbine drilling tool's high efficiency and screw drilling tool's high moment of torsion effect simultaneously.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

fig. 2 is an enlarged view of a point a in fig. 1.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the turbine combination screw drill according to the present embodiment includes a drill rod body 1, a turbine assembly 2, an upper universal shaft assembly 3, a motor assembly 4, a lower universal shaft assembly 5, and a transmission shaft assembly 6 are disposed in the drill rod body 1, a drill bit 7 is disposed at a lower end of the transmission shaft assembly 6, the turbine assembly 2 includes a turbine shaft 21 connected to the upper universal shaft assembly 3, a lower end of the upper universal shaft assembly 3 is connected to the motor assembly 4, a plurality of turbine stators 11 are disposed in the drill rod body 1, and a plurality of turbine rotors 22 are disposed on the turbine shaft 21 between the turbine stators 11;

high-pressure slurry is downwards introduced into the turbine assembly 2 at a high speed, the turbine rotor 22 drives the turbine shaft 21 to rotate through the turbine stator 11 and the turbine rotor 22 and the flow speed and pressure, then the high-pressure slurry is decelerated to reach the motor assembly 4 to drive the screw of the motor assembly 4 to rotate, meanwhile, the upper universal shaft assembly 3 transmits the rotation of the turbine shaft 21 to the screw of the motor assembly 4 to accelerate the planetary rotation of the screw, and then the planetary rotation is transmitted to the transmission shaft assembly 6 through the lower universal shaft assembly 5 to drive the drill bit 7 to rotate for drilling, so that the rapid and high-torque drilling effect is achieved.

Preferably, the upper part of the turbine shaft 21 is provided with a movable rotor 23 which can move up and down, the movable rotor 23 is matched with the turbine shaft 21 through a spline, and the turbine shaft 21 is provided with a spring 24 which tends to force the turbine shaft 21 to move upwards; because the consistency uniformity of the slurry is not high, the flow rate of the slurry also changes, when the slurry is introduced, the movable rotor 23 compresses the spring 24 until the kinetic energy of the slurry and the elastic potential energy of the spring 24 reach balance, when the flow rate is slightly faster (slower), the kinetic energy of the slurry is increased (reduced), the movable rotor 23 moves downwards (upwards), the compression amount of the spring 24 is increased (reduced), the kinetic energy of the slurry is dispersed, the rotating speed variation of the movable rotor 23 is reduced, and therefore the speed-increasing stability of the motor assembly 4 is improved.

Preferably, a thrust bearing 12 is provided in the drill rod body 1.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The turbine combined screw drilling tool is characterized by comprising a drilling rod body, wherein a turbine assembly, an upper universal shaft assembly, a motor assembly, a lower universal shaft assembly and a transmission shaft assembly are arranged in the drilling rod body, a drill bit is arranged at the lower end of the transmission shaft assembly, the turbine assembly comprises a turbine shaft connected with the upper universal shaft assembly, the lower end of the upper universal shaft assembly is connected with the motor assembly, a plurality of turbine stators are arranged in the drilling rod body, and a plurality of turbine rotors are arranged on the turbine shaft and between the turbine stators.

2. The turbine combination screw drill of claim 1, wherein: the upper part of the turbine shaft can move up and down and is provided with a movable rotor, the movable rotor is matched with the turbine shaft through a spline, and the turbine shaft is provided with a spring which tends to force the turbine shaft to move upwards.

3. The turbine combination screw drill of claim 1, wherein: a thrust bearing is arranged in the drill rod body.