CN211201753U

CN211201753U - Underground adjustable guiding drilling tool for coiled tubing drilling

Info

Publication number: CN211201753U
Application number: CN201921864232.6U
Authority: CN
Inventors: 赵真宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-07
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a coiled tubing drilling adjustable guiding drilling tool in pit, comprising an outer sleeve, wherein the left end of the outer sleeve is fixedly connected with an upper connector and a right end of the outer sleeve is fixedly connected with a sealing sleeve, the left side of the inner wall of the outer sleeve is fixedly connected with a circular base, the right side of the circular base is fixedly provided with a frameless motor a, the output shaft of the frameless motor a is fixedly connected with an eccentric wheel a, the right side of the eccentric wheel a is fixedly connected with a frameless motor b, the output shaft of the frameless motor b is fixedly connected with an eccentric wheel b which is rotatably connected with the inner cavity of the eccentric wheel a, the inner cavity of the eccentric wheel b is rotatably connected with a ball seat, the inner cavity of the ball seat is slidably connected with a guiding shaft, the right end of the guiding shaft extends to the outer side of the sealing sleeve, the coiled tubing drilling adjustable guiding drilling tool in, the practicality of direction drilling tool has been improved.

Description

Underground adjustable guiding drilling tool for coiled tubing drilling

Technical Field

The utility model relates to a well drilling direction technical field, concretely relates to adjustable direction drilling tool in pit of coiled tubing drilling.

Background

The task of drilling a borehole from the surface using mechanical equipment or manual labor is known as drilling. Generally refers to the engineering of drilling boreholes and large diameter water-supply wells for the exploration or exploitation of liquid and gaseous minerals such as oil, gas, and the like. The application of well drilling in national economic construction is extremely wide. Oil (gas) fields are widely drilled using rotary disc drills. The main equipment comprises a derrick, an operation platform, a diesel engine, a drilling rig, a drilling tool, a slurry pump, a generator, test equipment, a fuel oil tank, a boiler and the like.

The Chinese utility model patent with the publication number of CN208803817U and publication date of 2019-04-30 discloses an underground adjustable guiding drilling tool for coiled tubing drilling, which comprises an upper joint, an inner cylinder, a throttle pipe, a flexible pipe, a piston rod, a positioning ball seat, an adjusting cylinder, a locking cylinder and a lower joint; one end of the upper joint is connected with the inner cylinder, and the other end of the upper joint is connected with the positioning ball seat; one end of the flexible pipe is connected with the inner cylinder, and the other end of the flexible pipe is connected with the locking cylinder; a throttle pipe is arranged in the middle of the inner cylinder, an inner cylinder through hole is circumferentially arranged on the inner cylinder, and a flexible pipe through hole is circumferentially arranged on the flexible pipe; the throttle pipe can slide relative to the inner cylinder and the inner wall of the flexible pipe under the action of pressure, so that the throttle pipe is positioned at a first position and a second position; the first position is: the throttle pipe seals the through hole of the inner cylinder, and the through hole of the flexible pipe is in an open state; the second position is: the throttle pipe seals the through hole of the flexible pipe, and the through hole of the inner cylinder is in an open state.

Above-mentioned adjustable direction drilling tool in pit of coiled tubing drilling utilizes the throttle pressure differential of drilling fluid and the cooperation of spring to lead, but this direction drilling tool only can drive the drill bit and carry out angle modulation on a plane for the direction of drill bit is comprehensive inadequately, and the recovery effect of coiled tubing is poor in addition, makes the difficult reconversion of coiled tubing, is unfavorable for the direction of drill bit, has reduced the practicality of direction drilling tool.

Based on this, the utility model designs a specifically be an adjustable direction drilling tool in coiled tubing drilling pit to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an at least defect among the prior art is overcome to a main aim at, provides a coiled tubing drilling adjustable direction drilling tool in pit to solve the tradition direction drilling tool that proposes among the above-mentioned background art and only can drive the drill bit and carry out angle modulation on a plane, make the direction of drill bit comprehensive inadequately, the recovering effect of coiled tubing is poor in addition, makes the difficult reconversion of coiled tubing, is unfavorable for the problem of the direction of drill bit.

In order to realize the technical scheme, the utility model discloses a following technical scheme:

an underground adjustable guiding drilling tool for coiled tubing drilling comprises an outer sleeve, wherein the left end of the outer sleeve is fixedly connected with an upper connector, the right end of the outer sleeve is fixedly connected with a sleeve, the left side of the inner wall of the outer sleeve is fixedly connected with a ring base, the right side of the ring base is fixedly provided with a frameless motor a, an output shaft of the frameless motor a is fixedly connected with an eccentric wheel a, the right side of the eccentric wheel a is fixedly provided with a frameless motor b, an output shaft of the frameless motor b is fixedly connected with an eccentric wheel b which is rotatably connected with the inner cavity of the eccentric wheel a, the inner cavity of the eccentric wheel b is rotatably connected with a ball seat, the inner cavity of the ball seat is slidably connected with a guiding shaft, the right end of the guiding shaft extends to the outer side of the sleeve, the right end of the sleeve is provided with a hollow ball part, and the, the right end of the guide shaft is provided with a lower connecting part, and the surface of the guide shaft between the spherical convex part and the lower connecting part is fixedly connected with a sealing adjusting seat in sliding connection with the outer surface of the hollow ball part.

Preferably, the surface of the eccentric wheel a is fixedly connected with a bearing in sliding connection with the inner wall of the outer sleeve, a sliding groove is formed in the left side of the top of the inner cavity of the outer sleeve, and a sliding block in sliding connection with the sliding groove is fixedly connected to the top of the bearing.

Preferably, the inner wall of the outer sleeve is fixedly connected with a positioning block, and the left side of the positioning block is in contact with the right side of the bearing.

Preferably, the inner wall of the hollow ball part is provided with a rolling groove a, the surface of the spherical convex part is provided with a rolling groove b corresponding to the rolling groove a, and a ball is arranged between the hollow ball part and the spherical convex part.

Preferably, the outer sleeve is fixedly connected with the circular ring base through a bolt a, and the outer sleeve is fixedly connected with the upper connector through a bolt b.

Preferably, the right side of the surface of the outer sleeve is provided with a positioning groove a, and the left side of the inner wall of the envelope is provided with a positioning groove b matched with the positioning groove a.

Preferably, the right end of the upper connector is sleeved at the left end of the outer sleeve, and the bolt a is located in the inner cavity of the upper connector.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a frameless motor a drive eccentric wheel a rotates, frameless motor b drive eccentric wheel b rotates, eccentric wheel b is in eccentric wheel a's inner chamber, the distance that utilizes eccentric wheel b skew axis makes the guiding axle crooked, through the normal running fit of hollow ball portion and spherical convex part, in order to let down connecting portion turn-bend angle regulation, and simultaneously, rotation through eccentric wheel a, adjust eccentric wheel b's circumferential position, and then adjust the circumference position of connecting portion down, thereby the angle of connecting portion under the regulation that can be diversified, be favorable to the direction of drill bit.

The sealing sleeve is sealed through the sliding fit of the sealing adjusting seat and the surface of the hollow ball part, so that the use of sealing elements is reduced, and the manufacturing cost of the guiding drilling tool is reduced.

Through the setting of locating piece, spout, slider and bearing for eccentric wheel a is more stable at the during operation pivoted, and the person of facilitating the use simultaneously installs it in the overcoat, and the person of facilitating the use operates.

The upper connector is sleeved at the left end of the outer sleeve and matched with the positioning groove a and the positioning groove b, so that the guide drilling tool is better in sealing effect, and the stability and the safety of the guide drilling tool during working are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a state of the eccentric wheel a and the eccentric wheel b of the present invention;

FIG. 3 is a schematic view of another state of the eccentric wheel a and the eccentric wheel b of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a jacket; 2. an upper connector; 3. a cover; 31. a hollow ball section; 32. a rolling groove a; 4. a guide shaft; 41. a spherical convex portion; 42. a lower connecting portion; 43. a rolling groove b; 5. a circular ring base; 6. a frameless motor a; 7. an eccentric wheel a; 8. a frameless motor b; 9. an eccentric wheel b; 10. a ball seat; 11. a sealing adjusting seat; 12. Positioning blocks; 13. a chute; 14. a slider; 15. a ball bearing; 16. a bolt a; 17. a bolt b; 18. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a coiled tubing drilling underground adjustable guiding drilling tool comprises an outer sleeve 1, wherein the left end of the outer sleeve 1 is fixedly connected with an upper connector 2 through a bolt b17, the right end of the outer sleeve 1 is fixedly connected with a jacket 3, the right side of the surface of the outer sleeve 1 is provided with a positioning groove a, the left side of the inner wall of the jacket 3 is provided with a positioning groove b matched with the positioning groove a, through the matching of the positioning groove a and the positioning groove b, on one hand, a worker can conveniently assemble the outer sleeve 1 and the jacket 3 in place, on the other hand, the sealing performance between the outer sleeve 1 and the jacket 3 is improved, the right side of the inner wall of the outer sleeve 1 is fixedly connected with a circular base 5 through a bolt a16, the right end of the upper connector 2 is sleeved at the left end of the outer sleeve 1, a16 of the bolt a is positioned in an inner cavity of the upper connector 2, counterbores matched with the bolt a16 and the bolt b, a frameless motor a6 is fixedly installed on the right side of the circular ring base 5, an eccentric wheel a7 is fixedly connected with an output shaft of a frameless motor a6, a frameless motor b8 is fixedly installed on the right side of the eccentric wheel a7, an eccentric wheel b9 which is rotatably connected with an inner cavity of an eccentric wheel a7 is fixedly connected with an output shaft of a frameless motor b8, a ball seat 10 is rotatably connected with an inner cavity of an eccentric wheel b9, a bearing 18 which is slidably connected with the inner wall of the outer sleeve 1 is fixedly connected with the surface of the eccentric wheel a7, a sliding groove 13 is formed in the left side of the top of the inner cavity of the outer sleeve 1, a sliding block 14 which is slidably connected with the sliding groove 13 is fixedly connected with the top of the bearing 18, a positioning block 12 is fixedly connected with the inner wall of the outer sleeve 1, the left side of the positioning block 12 is in contact with the right side of the bearing 18, the eccentric wheel a7, a user can conveniently and stably move the bearing 18 to the inner cavity of the outer sleeve 1, the outer ring of the bearing 18 is prevented from rotating, the positioning function is performed on the bearing 18 through the arrangement of the positioning block 12, and the worker can conveniently install the eccentric wheel a7 and the eccentric wheel b9, wherein the central axis of the inner cavity of the eccentric wheel b9 can coincide with the central axis of the eccentric wheel a7, the central axis of the output shaft of the frameless motor a6 coincides with the central axis of the eccentric wheel a7, and the central axis of the frameless motor b8 coincides with the central axis of the eccentric wheel b 9;

the inner cavity of the ball seat 10 is connected with a guide shaft 4 in a sliding way, the right end of the guide shaft 4 extends to the outer side of the envelope 3, the right end of the envelope 3 is provided with a hollow ball part 31, the surface of the guide shaft 4 and the position corresponding to the hollow ball part 31 are provided with a spherical convex part 41 which is rotationally connected with the hollow ball part 31, the inner wall of the hollow ball part 31 is provided with a rolling groove a32, the surface of the spherical convex part 41 is provided with a rolling groove b43 corresponding to the rolling groove a32, a ball 15 is arranged between the hollow ball part 31 and the spherical convex, by the cooperative use of the rolling groove a32, the rolling groove b43, and the ball 15, the sliding between the spherical convex portion 41 and the hollow ball portion 31 is converted into rolling, the spherical convex part 41 can rotate more smoothly, the right end of the guide shaft 4 is provided with a lower connecting part 42, and the surface of the guide shaft 4 between the spherical convex part 41 and the lower connecting part 42 is fixedly connected with a sealing adjusting seat 11 which is in sliding connection with the outer surface of the hollow ball part 31.

One specific application of this embodiment is: when assembling, the circular ring base 5, the frameless motor a6, the eccentric wheel a7, the frameless motor b8, the eccentric wheel b9 and the ball seat 10 are firstly assembled into a whole to form an eccentric mechanism, the eccentric mechanism is then placed on the left side of the outer jacket 1, so that the slide 14 on the bearing 18 is aligned with the slide groove 13, and moves the bearing into the outer sleeve 1 to the right until the bearing 18 contacts with the positioning block 12, finally fixes the position of the circular ring base 5 through a bolt a16, fixes the upper connector 2 at the left end of the outer sleeve 1 through a bolt b17, the installation of the eccentric mechanism is completed, and then the guide shaft 4 is installed into the hollow ball portion 31, a sealing adjusting seat 11 is arranged on the surface of the guide shaft 4, the sealing adjusting seat 11 is connected with the hollow ball part 31 in a sliding way, then, the left end of the guide shaft 4 passes through the ball seat 10, and the envelope 3 is fixedly mounted at the right end of the outer sleeve 1, thereby completing the assembly.

When the drill bit is used, the left end of the upper connector 2 is connected with a drill rod, the right end of the guide shaft 4 is connected with the drill bit, and when the central axis of the inner cavity of the eccentric wheel b9 can coincide with the central axis of the eccentric wheel a7 during operation, as shown in figure 2, the drill bit drills forwards straightly; when the advancing direction needs to be adjusted, the frameless motor b8 is turned on, the output shaft of the frameless motor b8 drives the eccentric wheel b9 to rotate, so that the inner cavity of the eccentric wheel b9 deviates outwards, as shown in fig. 3, the eccentric wheel b9 drives the guide shaft 4 to bend through the ball seat 10, the spherical convex part 41 rotates reversely in the hollow ball part 31, a certain angle is formed between the lower connecting part 42 and the outer sleeve 1, and the angle adjustment of the device on one plane can be achieved; by turning on the frameless motor a6, the output shaft of the frameless motor a6 drives the eccentric wheel a7 to rotate, and further drives the eccentric wheel a7 and the ball seat 10 to rotate, so that the spherical convex part 41 rotates circumferentially in the hollow ball part 31, the drill can be adjusted in angles of a plurality of planes forward, and the guiding effect can be achieved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A coiled tubing drilling downhole adjustable guiding drilling tool comprises an outer sleeve (1), and is characterized in that: an upper connector (2) and a jacket (3) are fixedly connected to the left end of the outer sleeve (1), a ring base (5) is fixedly connected to the left side of the inner wall of the outer sleeve (1), a frameless motor a (6) is fixedly installed on the right side of the ring base (5), an eccentric wheel a (7) is fixedly connected to an output shaft of the frameless motor a (6), a frameless motor b (8) is fixedly installed on the right side of the eccentric wheel a (7), an eccentric wheel b (9) is fixedly connected to an output shaft of the frameless motor b (8) and rotatably connected with the inner cavity of the eccentric wheel a (7), a ball seat (10) is rotatably connected to the inner cavity of the eccentric wheel b (9), a guide shaft (4) is slidably connected to the inner cavity of the ball seat (10), the right end of the guide shaft (4) extends to the outer side of the jacket (3), and a hollow ball part (31) is arranged at the, the surface of guiding axle (4) just corresponds the position of hollow ball portion (31) and is equipped with spherical convex part (41) of being connected with hollow ball portion (31) rotation, the right-hand member of guiding axle (4) is equipped with down connecting portion (42), guiding axle (4) are located spherical convex part (41) and lower connecting portion (42) between fixed surface be connected with sealed regulation seat (11) of hollow ball portion (31) surface sliding connection.

2. A coiled tubing downhole adjustable steerable drilling tool as recited in claim 1, wherein: the surface fixed connection of eccentric wheel a (7) has bearing (18) with overcoat (1) inner wall sliding connection, spout (13) have been seted up to the left side at overcoat (1) inner chamber top, the top fixed connection of bearing (18) has slider (14) with spout (13) sliding connection.

3. A coiled tubing downhole adjustable steerable drilling tool as recited in claim 2, wherein: the inner wall of the outer sleeve (1) is fixedly connected with a positioning block (12), and the left side of the positioning block (12) is in contact with the right side of the bearing (18).

4. A coiled tubing downhole adjustable steerable drilling tool as recited in claim 1, wherein: the inner wall of the hollow ball part (31) is provided with a rolling groove a (32), the surface of the spherical convex part (41) is provided with a rolling groove b (43) corresponding to the rolling groove a (32), and a ball (15) is arranged between the hollow ball part (31) and the spherical convex part (41).

5. A coiled tubing downhole adjustable steerable drilling tool as recited in claim 1, wherein: the outer sleeve (1) is fixedly connected with the circular ring base (5) through a bolt a (16), and the outer sleeve (1) is fixedly connected with the upper connector (2) through a bolt b (17).

6. A coiled tubing downhole adjustable steerable drilling tool as recited in claim 5, wherein: the right side of the surface of the outer sleeve (1) is provided with a positioning groove a, and the left side of the inner wall of the envelope (3) is provided with a positioning groove b matched with the positioning groove a.

7. A coiled tubing downhole adjustable steerable drilling tool as recited in claim 6, wherein: the right end of the upper connector (2) is sleeved at the left end of the outer sleeve (1), and the bolt a (16) is located in the inner cavity of the upper connector (2).