CN109750992A - Helicoid hydraulic motor tool-face stabilizer - Google Patents
Helicoid hydraulic motor tool-face stabilizer Download PDFInfo
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- CN109750992A CN109750992A CN201711056166.5A CN201711056166A CN109750992A CN 109750992 A CN109750992 A CN 109750992A CN 201711056166 A CN201711056166 A CN 201711056166A CN 109750992 A CN109750992 A CN 109750992A
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- shell
- mandrel
- hydraulic motor
- friction
- wall
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Abstract
The present invention relates to a kind of helicoid hydraulic motor tool-face stabilizers, belong to drilling tool field comprising shell, mandrel, the mandrel middle part passes through the shell, and the both ends of the mandrel are located at outside the shell；Wall friction assembly on the housing is set, and the wall friction assembly is constructed to be permeable to that the shell and the borehole wall is made to generate frictional force；And the friction plate assembly between the shell and the mandrel is set, the friction plate assembly is constructed to be permeable to make to generate frictional force between the shell and the mandrel.The wall friction assembly that the present invention is somebody's turn to do is stuck on the borehole wall, offsets the reaction torque of helicoid hydraulic motor.The size of frictional force is not influenced by the control of drilling fluid displacement by motion state and subsurface environment, thus more stable, so that the working face of helicoid hydraulic motor is more stable；The frictional force of wall friction assembly is simultaneously convenient for control, according to the different sizes for needing to control frictional force.
Description
Technical field
The present invention relates to a kind of helicoid hydraulic motor tool-face stabilizers, are used for directional well drilling.
Background technique
Helicoid hydraulic motor is widely used in directional well, in horizontal well, when helicoid hydraulic motor work, in the driving of drilling well liquid energy
Under, the rotor of helicoid hydraulic motor drives drill bit to rotate clockwise, and generates certain torque with fractured rock.Simultaneously in helicoid hydraulic motor
Reaction torque is produced on stator, reaction torque is acted on on stator and shell, and shell is connect with drill string, when drill string one end is lockable
When, due to the elasticity of drill string, reaction torque can make helicoid hydraulic motor and drill string rotate a certain angle counterclockwise.Due to helicoid hydraulic motor
Tool-face is arranged on the shell, therefore shell rotates counterclockwise the variation that will lead to tool-face, to influence well track
Control.
To solve the above-mentioned problems, stabilizer is generallyd use to inhibit reaction torque.Stabilizer as drill string a part at
In in drill string, have a diameter larger than drill string diameter and close to borehole diameter, the weight of helicoid hydraulic motor and drill string stabilizer with
The place of borehole wall contact generates frictional force.Frictional force can effectively inhibit the reaction torque of helicoid hydraulic motor.Currently used stabilization
In device, although straight stupefied stabilizer and spiral stabilizer all have the function of certain inhibition reaction torque, inhibit the strong of reaction torque
Degree is inadequate.Slip-type tool-face stabilizer is used exclusively for the reaction torque controller in stabilizing tool face, needs to consume certain brill
Well liquid energy, slips are directly clamped among on the borehole wall, if reaction torque may directly drive greatly slips to destroy the borehole wall very much, bring the borehole wall
The accident of collapsing.
Summary of the invention
In view of the above-mentioned problems, helicoid hydraulic motor institute can be offset the invention proposes a kind of helicoid hydraulic motor tool-face stabilizer
The reaction torque of receiving improves the intensity for inhibiting reaction torque, and safer.
The invention proposes a kind of helicoid hydraulic motor tool-face stabilizers, comprising:
Shell,
Mandrel, the mandrel passes through the shell and both ends are located at outside the shell；
Wall friction assembly on the housing is set, the wall friction assembly be constructed to be permeable to make the shell with
The borehole wall generates frictional force；And
Friction plate assembly between the shell and the mandrel is set, and the friction plate assembly is constructed to be permeable to make institute
It states and generates frictional force between shell and the mandrel.
A further improvement of the present invention is that pressure transmission hole radially is set on the mandrel, the outlet of the pressure transmission hole
It is directed at the inner wall of the shell.
A further improvement of the present invention is that the wall friction assembly includes the radial hole of the outer wall through shell, with
And sealingly it is arranged in the backup piston in radial hole.
A further improvement of the present invention is that radial hole includes close to the inner segment at the center of the mandrel and far from the core
The outer segment at the center of axis, wherein the diameter of the inner segment is greater than the diameter of the outer segment.
A further improvement of the present invention is that the backup piston includes the piston cap that can be moved in the inner segment,
And the piston rod that can be moved in the outer segment.
A further improvement of the present invention is that the shell is cylindrical shape, one end of the inner cavity of the shell is equipped with annular
Slot, the annular groove pass through seal cap sealing；
Wherein, the friction plate assembly is arranged in the annular groove.
A further improvement of the present invention is that the friction plate assembly includes and is arranged in several on the mandrel outer wall
Rub movable plate, and if the dry friction stationary plate that is arranged on the outer casing inner wall；Wherein, the friction movable plate and the friction are quiet
Piece arranged for interval.
A further improvement of the present invention is that the friction plate assembly further includes the disc spring of setting in a ring groove, it is described
One end of disc spring is connected on the end wall of the annular groove, and the other end connects most marginal friction movable plate.
A further improvement of the present invention is that setting on the mandrel, there are two positioning bolt, described two positioning bolts point
The two sides of the shell are not set.
A further improvement of the present invention is that the both ends of the shell connect the mandrel by sealing device.
Compared with the prior art, the advantages of the present invention are as follows:
When wall friction assembly works in helicoid hydraulic motor tool-face stabilizer of the invention, between backup piston and the borehole wall
Generate frictional force.The frictional force is stuck in wall friction assembly on the borehole wall, offsets the reaction torque of helicoid hydraulic motor.The size of frictional force
By the control of drilling fluid displacement, do not influenced by motion state and subsurface environment, thus it is more stable, so that helicoid hydraulic motor
Working face it is more stable；The frictional force of wall friction assembly needs to control the big of frictional force according to different convenient for control simultaneously
It is small.
In helicoid hydraulic motor tool-face stabilizer of the present invention, the frictional force that friction plate assembly generates is rubbed less than the borehole wall
The frictional force that assembly generates is wiped, in directional drilling, when the reaction torque of helicoid hydraulic motor is transmitted to mandrel, the friction of friction plate generation
Power prevents the movement of mandrel.To maintain the stabilization of helicoid hydraulic motor tool-face.In compound drilling, since friction plate generates
Frictional force be less than frictional force between wall friction assembly and the borehole wall, when starting the movement of driven by rotary disc drilling rod, drilling rod drives core
Axis and helicoid hydraulic motor rotation, but shell, piston maintain static it is dynamic.Lead to well this prevents piston rotary motion destroys the borehole wall
Wall collapses, and improves the safety of underground.
Detailed description of the invention
Fig. 1 is the schematic diagram of the helicoid hydraulic motor tool-face stabilizer of an embodiment according to the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1, it is shown that the schematic cross-section of wall friction assembly according to the present invention；
Fig. 3 is the B-B cross-sectional view of Fig. 1, it is shown that the schematic cross-section of friction plate assembly according to the present invention
Fig. 4 is the friction movable plate attachment structure schematic diagram of an embodiment according to the present invention；
Fig. 5 is the friction stationary plate attachment structure schematic diagram of an embodiment according to the present invention.
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
The meaning of each appended drawing reference is as follows in the accompanying drawings: 10, shell, 11, annular groove, 12, sealing cover, 20, mandrel, 21,
Pressure transmission hole, 13, sealing device, 22, lower contact, 23, positioning bolt, 30, wall friction assembly, 31, radial hole, 32, inner segment,
33, outer segment, 34, backup piston, 36, piston cap, 37, piston rod, 40, friction plate assembly, 41, friction movable plate, 42, friction it is quiet
Piece, 43, disc spring, 44, teeth, 45, tooth socket, 46, rectangular protrusions, 47, rectangular recess.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 schematically shows helicoid hydraulic motor tool-face stabilizer according to one embodiment of present invention.According to this hair
Bright helicoid hydraulic motor tool-face stabilizer can be used in directed drilling and combined drilling.
As shown in Figure 1, the helicoid hydraulic motor tool-face stabilizer of the present embodiment, including shell 10.The shell 10 is cylinder
Shape.Pipe nipple described in the present embodiment further includes mandrel 20, is covered in the shell 10 in the middle part of the mandrel 20.Further, mandrel
20 one end passes through 22 jointed rod of lower contact or helicoid hydraulic motor by standard drill pipe pin thread jointed rod, the other end.This implementation
The example pipe nipple further includes wall friction assembly 30, and the wall friction assembly 30 is constructed to be permeable to make the shell 10 and the borehole wall
Generate frictional force.Pipe nipple described in the present embodiment further includes friction plate assembly 40, and the friction plate assembly 40 is constructed to be permeable to make institute
It states and generates frictional force between shell 10 and the mandrel 20.
When using the helicoid hydraulic motor tool-face stabilizer according to plate embodiment, wall friction assembly 30 make shell and
Frictional force is generated between the borehole wall, is fixed on shell in the borehole wall.Friction plate assembly 40 makes to generate frictional force between shell and mandrel.
In directional drilling, helicoid hydraulic motor generates reaction torque and is transmitted to mandrel 20, since there are friction plates between mandrel 20 and shell 10
The frictional force that assembly 40 generates is greater than reaction torque, ensure that mandrel 20 will not be acted on by reaction torque and be rotated, to ensure that work
Stablize in tool face.In compound drilling, driven by rotary disc drill string, mandrel 20 and screw rod are rotated together.Due to driven by rotary disc drill string, mandrel
20 twisting resistance is greater than the frictional force that friction plate assembly 40 generates, and is less than the frictional force that wall friction assembly 30 generates, therefore
Friction plate is still rubbing, and mandrel 20 rotates in shell 10, but remains stationary between shell 10 and the borehole wall, to prevent the borehole wall
It collapses.
In one embodiment, pressure transmission hole 21 radially, the outlet pair of the pressure transmission hole 21 are set on the mandrel 20
The inner wall of the quasi- shell 10.In the present embodiment, drilling fluid flows in mandrel 20, is transmitted to shell 10 by pressure transmission hole 21
Between mandrel 20.The pressure of drilling fluid is applied to wall friction assembly 30, to control rubbing between well shell 10 and the borehole wall
Wipe power.
In a preferred embodiment, as shown in Fig. 2, the wall friction assembly 30 includes through 10 outer wall of shell
Radial hole 31, and the backup piston 34 being sealingly arranged in radial hole 31.Preferably, the quantity of the radial hole 31 is
It three, is evenly arranged on the circumference of 10 outer wall of shell.In the work of the wall friction assembly 30 according to the present embodiment, core
The circulation drilling fluid of axis 20 is transmitted between shell 10 and mandrel 20 by pressure transmission hole 21.The backup piston 34 under the pressure of drilling fluid
Radially hole 31 is protruding, so that backup piston 34 be made to contact with the borehole wall, and generates frictional force.
In a preferred embodiment, the radial hole 31 includes close to the inner segment 32 of described 20 one end of mandrel and far from institute
State the outer segment 33 of 20 one end of mandrel.Wherein, the diameter of the inner segment 32 is greater than the diameter of outer segment 33.Further, the backup
Piston includes the piston cap 36 that can be moved in the inner segment 32, and the piston rod that can be moved in the outer segment 33
37.Wherein, the diameter of the piston cap 36 is greater than the diameter of outer segment 33.In this way, the backup piston just can not be from the radial direction
It is skidded off in hole 31.Further, the both ends of the shell 10 connect the mandrel 20 by sealing device 13.
When using the helicoid hydraulic motor tool-face stabilizer according to the present embodiment, to improve wall friction assembly 30
Frictional force is fixed on shell 10 in the borehole wall, can increase the flow of drilling fluid first, so that drilling fluid is transmitted by pressure transmission hole 21
To between shell 10 and mandrel 20.Under the promotion of drill-in fluid, radially hole 31 is protruding for backup piston.The end of backup piston
Portion reaches other than shell 10, and squeezes the borehole wall.To make shell 10 be fixed in the borehole wall.
In one embodiment, as shown in Figure 1, Figure 3, the shell 10 is cylinder-shaped, the one of the inner cavity of the shell 10
End is equipped with annular groove 11, and 11 outer end of annular groove is sealed by sealing cover 12.Preferably, it is two sections that the shell 10, which is divided to, is leaned on
One section and one section far from helicoid hydraulic motor of nearly helicoid hydraulic motor.Wherein, one section close to helicoid hydraulic motor is in lower end at work,
And it is equipped with annular groove 11.For installing friction plate assembly 40.One section far from helicoid hydraulic motor is in upper end at work, for pacifying
Fill wall friction assembly 30.It is two sections that the shell 10 of the present embodiment, which is divided to, arranges friction plate assembly 40 and wall friction assembly 30
In different positions, it is unaffected between each other.
In one embodiment, as shown in Figure 1, Figure 3, if the friction plate assembly 40 includes dry friction movable plate 41.It is described
Friction movable plate 41 is arranged on the outer wall of mandrel 20, can rotate and rotate with mandrel 20.In a preferred embodiment, such as
Shown in Fig. 4, friction 41 inward flange of movable plate has teeth 44, and the outer wall of mandrel 20 is equipped with the tooth matched with friction movable plate 41
Slot 45.In the present embodiment, if the friction plate assembly 40 further includes dry friction stationary plate 42, the friction stationary plate 42 is fixed on described
The inner wall of shell 10.In a preferred embodiment, as shown in figure 5, friction 42 outer edge of stationary plate is prominent equipped at least three rectangles
46 are played, same amount of rectangular recess 47 is set on the inner wall of the shell 10.The rectangular protrusions 46 are fixed on the rectangle
In groove 47.In the friction plate assembly 40 of the present embodiment, friction stationary plate 42 and friction 41 surface of movable plate are rough surface.It is described
Rub stationary plate 42 and friction 41 arranged for interval of movable plate.
In one embodiment, the friction plate assembly 40 further includes disc spring 43.The disc spring 43 is arranged in the mandrel
Between 20 and the shell 10.One end of the disc spring 43 connects the end of the shell 10, and rubs described in other end connection
Wipe movable plate 41.In the present embodiment, the disc spring 43 squeezes the friction stationary plate 42, and friction stationary plate 42 is made to be adjacent to friction movable plate
41, to increase the frictional force of friction plate assembly 40.
In one embodiment, positioning bolt 23 there are two being set on the mandrel 20, and two positioning bolts 23 are distinguished
The two sides of the shell 10 are set.Positioning bolt 23 is used to position the link position of shell 10 Yu mandrel 20, guarantees shell 10
Without departing from mandrel 20.
The method that the helicoid hydraulic motor tool-face stabilizer is crept into according to the present invention.It includes the following steps.
Firstly, assembling above-mentioned helicoid hydraulic motor tool-face stabilizer, and it is mounted on the upstream of helicoid hydraulic motor.
When being oriented drilling, wall friction assembly 30 makes to generate frictional force between shell 10 and the borehole wall, to make outer
Shell 10 remains static.The frictional force for improving friction plate assembly 40 makes between mandrel 20 and shell 10 in opposing stationary shape
State.At this moment, when the reaction torque of helicoid hydraulic motor is transmitted to mandrel 20, the frictional force that friction plate generates prevents the movement of mandrel 20.
To maintain the stabilization of helicoid hydraulic motor tool-face.
When carrying out compound drilling, wall friction assembly 30 makes to generate frictional force between shell 10 and the borehole wall, to make outer
Shell 10 remains static.Driven by rotary disc drill string, mandrel and screw rod rotate together.Due to the torsion of driven by rotary disc drill string, mandrel
Power be greater than friction plate assembly 40 generate frictional force, and be less than wall friction assembly 30 generate frictional force, therefore friction plate according to
It is so rubbing, mandrel 20 rotates in shell 10, but remains stationary between shell 10 and the borehole wall, to prevent cave-in.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (10)
1. a kind of helicoid hydraulic motor tool-face stabilizer characterized by comprising
Shell (10),
Mandrel (20), the mandrel (20) passes through the shell (10) and both ends are located at the shell (10) outside；
The wall friction assembly (30) being arranged on the shell (10), the wall friction assembly (30) are constructed to be permeable to make institute
It states shell (10) and the borehole wall generates frictional force；And
The friction plate assembly (40) being arranged between the shell (10) and the mandrel (20), friction plate assembly (40) structure
It causes to make to generate frictional force between the shell (10) and the mandrel (20).
2. helicoid hydraulic motor tool-face stabilizer according to claim 1, which is characterized in that edge is arranged on the mandrel (20)
Radial pressure transmission hole (21), the outlet of the pressure transmission hole (21) are directed at the inner wall of the shell (10).
3. helicoid hydraulic motor tool-face stabilizer according to claim 2, which is characterized in that the wall friction assembly (30)
Radial hole (31) including the outer wall through shell (10), and the backup piston being sealingly arranged in radial hole (31)
(34)。
4. helicoid hydraulic motor tool-face stabilizer according to claim 3, which is characterized in that the radial hole (31) includes leaning on
The inner segment (32) at the center of the nearly mandrel (20) and the outer segment (33) at the center far from the mandrel (20), wherein the inner segment
(32) diameter is greater than the diameter of the outer segment (33).
5. helicoid hydraulic motor tool-face stabilizer according to claim 4, which is characterized in that the backup piston includes can
The piston cap (36) moved in the inner segment (32), and the piston rod (37) that can be moved in the outer segment (33).
6. helicoid hydraulic motor tool-face stabilizer according to any one of claim 1 to 4, which is characterized in that the shell
It (10) is cylindrical shape, one end of the inner cavity of the shell (10) is equipped with annular groove (11), and the annular groove (11) passes through sealing cover
(12) it seals；
Wherein, friction plate assembly (40) setting is in the annular groove (11).
7. helicoid hydraulic motor tool-face stabilizer according to claim 6, which is characterized in that friction plate assembly (40) packet
It includes and if the dry friction movable plate (41) on outer wall is set in the mandrel (20), and be arranged on the shell (10) inner wall
If dry friction stationary plate (42)；Wherein, the friction movable plate (41) and friction stationary plate (42) arranged for interval.
8. helicoid hydraulic motor tool-face stabilizer according to claim 7, which is characterized in that the friction plate assembly (40) is also
Including the disc spring (43) being arranged in annular groove (11), one end of the disc spring (43) is connected to the end wall of the annular groove (11)
On, the other end connects most marginal friction movable plate (41).
9. helicoid hydraulic motor tool-face stabilizer according to any one of claims 1 to 4, which is characterized in that the mandrel
(20) it is set on there are two positioning bolt (23), described two positioning bolts (23) are separately positioned on the two sides of the shell (10).
10. helicoid hydraulic motor tool-face stabilizer according to any one of claims 1 to 4, which is characterized in that the shell
(10) both ends connect the mandrel (20) by sealing device (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056166.5A CN109750992B (en) | 2017-11-01 | 2017-11-01 | Screw drill tool face stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056166.5A CN109750992B (en) | 2017-11-01 | 2017-11-01 | Screw drill tool face stabilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109750992A true CN109750992A (en) | 2019-05-14 |
| CN109750992B CN109750992B (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711056166.5A Active CN109750992B (en) | 2017-11-01 | 2017-11-01 | Screw drill tool face stabilizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN109750992B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943096A (en) * | 2021-03-10 | 2021-06-11 | 李永和 | Screw drilling tool anti-torque damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1239255A1 (en) * | 1984-06-20 | 1986-06-23 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники | Centering device for hole-bottom motor |
| CN200949423Y (en) * | 2005-11-23 | 2007-09-19 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Hydraulic reduced drilling tool stabilizer |
| CN102268961A (en) * | 2011-08-01 | 2011-12-07 | 西南石油大学 | Screw drill transmission shaft assembly with vibration reduction function |
| CN106437514A (en) * | 2016-10-18 | 2017-02-22 | 裴绪建 | Tool surface stabilizer |
| CN106895076A (en) * | 2015-12-18 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of controllable bearing of moment of torsion |
-
2017
- 2017-11-01 CN CN201711056166.5A patent/CN109750992B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1239255A1 (en) * | 1984-06-20 | 1986-06-23 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники | Centering device for hole-bottom motor |
| CN200949423Y (en) * | 2005-11-23 | 2007-09-19 | 中国石化集团中原石油勘探局钻井工程技术研究院 | Hydraulic reduced drilling tool stabilizer |
| CN102268961A (en) * | 2011-08-01 | 2011-12-07 | 西南石油大学 | Screw drill transmission shaft assembly with vibration reduction function |
| CN106895076A (en) * | 2015-12-18 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of controllable bearing of moment of torsion |
| CN106437514A (en) * | 2016-10-18 | 2017-02-22 | 裴绪建 | Tool surface stabilizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943096A (en) * | 2021-03-10 | 2021-06-11 | 李永和 | Screw drilling tool anti-torque damper |
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|---|---|
| CN109750992B (en) | 2020-11-20 |
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