CN114439385A

CN114439385A - Power guide shoe

Info

Publication number: CN114439385A
Application number: CN202210139524.3A
Authority: CN
Inventors: 田伟东; 尹震
Original assignee: Chengdu Dewei Petroleum Technology Service Co ltd
Current assignee: Chengdu Dewei Petroleum Technology Service Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-05-06

Abstract

The invention discloses a power guide shoe, which comprises: turbine top connection, turbine casing and water conservancy diversion cap, the right-hand member that connects on the turbine is provided with spindle nut, spindle nut's the inner is provided with hollow main shaft, hollow main shaft is located the right side that connects on the turbine, the turbine casing sets up the right-hand member at the turbine top connection, spindle nut is located the left end of turbine casing, the inner of turbine casing is provided with turbine power structure, and the right side of turbine casing is provided with reaming guide shoe structure, the water conservancy diversion cap sets up the right-hand member at the turbine casing, the inner of water conservancy diversion cap is provided with prevents falling the device, turbine power structure includes turbine rotor and turbine stator, turbine rotor rotates the inner of installing at the turbine casing. The power guide shoe can help the tail pipe or the casing pipe not to be sent or put to a preset position, can solve some limitations and disadvantages of the rotary tail pipe tool, and is not easy to cause the damage of a well hole.

Description

Power guide shoe

Technical Field

The invention relates to the technical field of power guide shoes, in particular to a power guide shoe.

Background

The power guide shoe is arranged at the front end of a casing or a tail pipe, is actually a guide shoe driven by water power, and can drive the reaming power guide shoe to correct a borehole if the power guide shoe is blocked in the casing or tail pipe descending process, and can generate ten to twenty tons of axial traction force towards the bottom of the well to smoothly complete the descending task of a pipe string.

However, the existing power guide shoe has the disadvantages that a long tail pipe is put in, the integral construction torque is large, the requirement on the torsion resistance of a running tool and a casing is high, and the integral rotation of the pipe can cause the damage of a well hole, so that the power guide shoe is provided to solve the problems.

Disclosure of Invention

The invention aims to provide a power guide shoe, which aims to solve the problems that the conventional power guide shoe in the background art has the disadvantages that a long tail pipe is put in, the integral construction torque is large, the requirement on the torsion resistance of a running tool and a casing is high, and the integral rotation of the pipe can cause the damage of a well hole.

In order to achieve the purpose, the invention provides the following technical scheme: a power guide shoe, comprising:

the upper turbine joint is characterized in that a main shaft nut is arranged at the right end of the upper turbine joint, a hollow main shaft is arranged at the inner end of the main shaft nut, and the hollow main shaft is positioned on the right side of the upper turbine joint;

the turbine shell is arranged at the right end of the turbine upper joint, the spindle nut is positioned at the left end of the turbine shell, a turbine power structure is arranged at the inner end of the turbine shell, and a reaming guide shoe structure is arranged on the right side of the turbine shell;

the water diversion cap is arranged at the right end of the turbine shell, and an anti-falling device is arranged at the inner end of the water diversion cap.

Preferably, the turbine power structure comprises a turbine rotor and a turbine stator, the turbine rotor being rotatably mounted at an inner end of the turbine housing.

Preferably, the turbine stator is arranged at the inner end of the turbine rotor, and the turbine rotor and the turbine stator are both arranged at the outer end of the hollow main shaft.

Preferably, the right end of the anti-falling device is provided with a thrust bearing, the outer side of the thrust bearing is provided with a centralizer, and the centralizer is located at the right end of the turbine shell.

Preferably, the anti-falling device and the thrust bearing are both arranged on the outer side of the hollow main shaft, the outer end of the hollow main shaft is provided with a centering bearing, and the centering bearing is arranged on the outer ends of the turbine rotor and the turbine stator.

Preferably, the reaming guide shoe structure comprises a turbine lower joint, a conversion joint and a drillable reaming guide shoe, wherein the turbine lower joint is arranged at the right end of the turbine shell.

Preferably, the inner end of the turbine lower joint is provided with an adapter, the outer end of the adapter is provided with a guide shoe capable of drilling and reaming, and the guide shoe capable of drilling and reaming is located on the right side of the turbine lower joint.

Compared with the prior art, the invention has the beneficial effects that:

1. the turbine rotor, the turbine stator and the hollow main shaft are arranged, when liquid passes through the power guide shoe, the turbine rotor is driven to rotate, the turbine rotor and the turbine stator drive the hollow main shaft to rotate and finally transmit the hollow main shaft to the guide shoe capable of drilling and reaming, the overall construction torque is small, and the requirement on the anti-torque capacity of a feeding tool and a sleeve is low;

2. the device is provided with a turbine shell, a thrust bearing and a drillable reaming guide shoe, and axial tension and pressure generated by the drillable reaming guide shoe and a well hole are transmitted to the turbine shell by the thrust bearing, so that a pipe string descending task can be smoothly completed;

3. the turbine lower joint and the adapter are arranged, the drillable reaming guide shoe is connected with the hollow spindle through the turbine lower joint and the adapter, the hollow spindle drives the drillable reaming guide shoe to rotate in the rotating process, and the damage to a well hole is not easily caused.

Drawings

FIG. 1 is a front view of a cutaway structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the turbine stator of the present invention;

FIG. 3 is a general schematic view of a turbine rotor according to the present invention;

fig. 4 is a schematic view of the whole structure of the guide shoe capable of drilling and reaming according to the invention.

In the figure: 1. an upper turbine joint; 2. a spindle nut; 3. a turbine housing; 4. a turbine rotor; 5. a turbine stator; 6. a hollow main shaft; 7. righting the bearing; 8. a diversion water cap; 9. an anti-drop device; 10. a thrust bearing; 11. a centralizer; 12. a turbine lower joint; 13. a crossover sub; 14. the guide shoe can be drilled and reamed.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a power guide shoe comprises a turbine upper joint 1, a main shaft nut 2, a turbine shell 3, a turbine rotor 4, a turbine stator 5, a hollow main shaft 6, a centering bearing 7, a diversion water cap 8, an anti-drop device 9, a thrust bearing 10, a centralizer 11, a turbine lower joint 12, a conversion joint 13 and a drillable reaming guide shoe 14. As shown in figures 1, 2, 3 and 4, if a casing pipe or a tail pipe is blocked in the process of casing pipe or tail pipe descending, or in a deep well, an ultra-deep well, a horizontal well or a directional well and a complex well hole thereof, when the tail pipe or the casing pipe cannot be sent into or put down to a preset position due to a sand bridge, diameter reduction or collapse, in order to solve some limitations and disadvantages of the rotary tail pipe tool, the turbine upper joint 1 is arranged at the front end of the casing pipe or the tail pipe, then a pump is started to drive the drillable reaming guide shoe 14, then liquid passes through the interior of the turbine shell 3, and when the liquid passes through the interior of the turbine shell 3, the turbine rotor 4 is driven to rotate, a turbine stator 5 is arranged in the turbine rotor 4, the turbine rotor 4 and the turbine stator 5 work in a matched mode, the turbine rotor 4 and the turbine stator 5 drive the hollow spindle 6 to rotate in the turbine shell 3, the spindle nut 2 is arranged at the left end of the hollow spindle 6, and the right end of the hollow spindle 6 rotates at the inner end of the spindle nut 2;

as shown in fig. 1, 2, 3 and 4, the outer ends of the turbine rotor 4 and the turbine stator 5 are provided with a centering bearing 7, a diversion water cap 8 mounted at the inner end of the turbine housing 3 conducts diversion, an anti-drop device 9 is mounted at the inner end of the diversion water cap 8, the anti-drop device 9 plays a role in stabilizing and reinforcing, the right end of the anti-drop device 9 is provided with a thrust bearing 10, the thrust bearing 10 is located at the outer end of the hollow main shaft 6, and the outer side of the thrust bearing 10 is provided with a centering device 11;

as shown in fig. 1, 2, 3 and 4, the axial tension and pressure generated by the reaming guide shoe and the well bore are transmitted to the turbine housing 3 by the thrust bearing 10, the drillable reaming guide shoe 14 is installed at the right end of the turbine housing 3 through the turbine lower joint 12 and the adapter 13, the turbine rotor 4 and the turbine stator 5 drive the hollow spindle 6 to rotate, and then the hollow spindle is transmitted to the drillable reaming guide shoe 14, so that the drillable reaming guide shoe 14 rotates to correct the well bore, and simultaneously, ten to twenty tons of axial traction force towards the bottom of the well can be generated, thereby successfully completing the task of running the pipe string.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A power guide shoe is characterized in that: the method comprises the following steps:

the turbine upper joint (1), a spindle nut (2) is arranged at the right end of the turbine upper joint (1), a hollow spindle (6) is arranged at the inner end of the spindle nut (2), and the hollow spindle (6) is positioned on the right side of the turbine upper joint (1);

the turbine shell (3) is arranged at the right end of the turbine upper connector (1), the spindle nut (2) is located at the left end of the turbine shell (3), a turbine power structure is arranged at the inner end of the turbine shell (3), and a reaming guide shoe structure is arranged on the right side of the turbine shell (3);

the water diversion cap (8), water diversion cap (8) set up the right-hand member in turbine shell (3), the inner of water diversion cap (8) is provided with anti-falling device (9).

2. A power guide shoe as defined in claim 1, wherein: the turbine power structure comprises a turbine rotor (4) and a turbine stator (5), wherein the turbine rotor (4) is rotatably arranged at the inner end of the turbine shell (3).

3. A power shoe as defined in claim 2, wherein: the turbine stator (5) is arranged at the inner end of the turbine rotor (4), and the turbine rotor (4) and the turbine stator (5) are both arranged at the outer end of the hollow main shaft (6).

4. A power guide shoe as defined in claim 1, wherein: the right end of the anti-falling device (9) is provided with a thrust bearing (10), the outer side of the thrust bearing (10) is provided with a centralizer (11), and the centralizer (11) is located at the right end of the turbine shell (3).

5. A power guide shoe as defined in claim 4, wherein: the anti-drop device (9) and the thrust bearing (10) are arranged on the outer side of the hollow main shaft (6), the outer end of the hollow main shaft (6) is provided with a centering bearing (7), and the centering bearing (7) is arranged on the outer ends of the turbine rotor (4) and the turbine stator (5).

6. A power guide shoe as defined in claim 1, wherein: the reaming guide shoe structure comprises a turbine lower joint (12), a conversion joint (13) and a drillable reaming guide shoe (14), wherein the turbine lower joint (12) is arranged at the right end of the turbine shell (3).

7. A power guide shoe as defined in claim 6, wherein: the inner end of the turbine lower joint (12) is provided with a conversion joint (13), the outer end of the conversion joint (13) is provided with a drillable reaming guide shoe (14), and the drillable reaming guide shoe (14) is positioned on the right side of the turbine lower joint (12).