CN108868617B - Round hole drilling tool - Google Patents
Round hole drilling tool Download PDFInfo
- Publication number
- CN108868617B CN108868617B CN201810774508.5A CN201810774508A CN108868617B CN 108868617 B CN108868617 B CN 108868617B CN 201810774508 A CN201810774508 A CN 201810774508A CN 108868617 B CN108868617 B CN 108868617B
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- China
- Prior art keywords
- hole
- round hole
- well wall
- drilling tool
- repairing
- Prior art date
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- 238000005553 drilling Methods 0.000 title claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000007790 scraping Methods 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000010485 coping Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- -1 geothermal Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a round hole drilling tool. The round hole drilling tool comprises a round hole device and a hole repairing drill bit. Wherein, the upper end of the round hole device is provided with a joint, and the lower end of the round hole device is connected with a hole repairing drill bit. The connector is used for connecting a rotating mechanism, and the round hole device is of a cylindrical structure. By applying the technical scheme of the invention, the round hole drilling tool is connected to the rotating mechanism through the joint and then is put into the well. The hole repairing drill bit entering the well can crush the protruding structure in the well wall, and the descending obstruction of the sleeve is cleared. Then, the round hole device descending along with the hole repairing drill bit can compact and grind the surface of the well wall to be flat during rotation by virtue of the cylindrical structure of the round hole device, so that the descending resistance of the sleeve is reduced. Thus, the well drilling processed by the round hole drilling tool can be used for running the casing more easily, and the problem that the casing is easy to be blocked in the past is solved.
Description
Technical Field
The invention relates to the technical field of drilling equipment, in particular to a round hole drilling tool.
Background
The well drilling technology is widely applied to the fields of petroleum, coal, geothermal, mineral exploration, water well construction and the like. In the well-forming process, the lowering of the wall protection pipe or the technical sleeve is one of important procedures, and plays an important role in protecting the construction safety and construction quality of drilling well and guaranteeing the resource quality.
In the current stage, in order to pursue resource quality, the drilling depth is gradually increased, and the casing running length is correspondingly gradually increased, so that geological conditions become complicated. Because the drill bit has a short length and is round, the phenomenon that the well wall is irregular because the drill bit bypasses the hard block to descend sometimes occurs in the drilling process. When the well is in a down hole, the end of the sleeve is blocked by the convex structure of the well wall, and the down hole is difficult.
Disclosure of Invention
The invention mainly aims to provide a round hole drilling tool, which solves the problem that in the prior art, a casing is easy to block and cannot be put down when the casing is put down in a well drilling process.
In order to achieve the above purpose, the invention provides a round hole drilling tool, which comprises a round hole device and a hole repairing drill bit, wherein a joint is formed at the upper end of the round hole device and is used for connecting a rotating mechanism, and the round hole device is of a cylindrical structure so as to compact and grind the surface of a well wall flat during rotation; the hole repairing drill bit is connected to the lower end of the round hole device and used for crushing a protruding structure in the well wall.
Further, the radial dimension of the hole-repairing drill bit is larger than or equal to the radial dimension of the circular hole device.
Further, the hole repairing drill bit is connected with the round hole device through the drill collar.
Further, the round hole drilling tool further comprises a well wall grinding device, the well wall grinding device is connected between the hole grinding drill bit and the round hole device, a cutting edge structure is formed on the circumference of the well wall grinding device, the cutting edge structure extends along the vertical direction or extends along the direction inclined relative to the vertical direction, and the well wall grinding device is used for grinding the surface of the well wall.
Further, the radial dimension of the borehole wall dresser is greater than or equal to the radial dimension of the circular hole device.
Further, the well wall coping device comprises a connecting main body and a scraping piece, wherein the connecting main body is connected between the hole-repairing drill bit and the round hole device; the scraping piece is connected to the outer peripheral surface of the connecting body, and the distal end of the scraping piece, which is far away from the connecting body, forms a cutting edge structure.
Further, the number of the scraping elements is plural, and the plurality of the scraping elements are arranged at intervals along the outer peripheral surface of the connecting body.
Further, the well wall grinding device further comprises a middle disc, the middle disc is connected to the middle of the connecting body, the middle disc is respectively connected with the plurality of scraping pieces, and the middle disc is used for fixing the scraping pieces.
Further, the number of the round hole devices is multiple, the number of the well wall polishing devices is also multiple, the plurality of the round hole devices are arranged at intervals, and two adjacent round hole devices are connected through one well wall polishing device.
Further, when the well wall coping device is connected between two circular hole devices, the connecting main body is connected between two adjacent circular hole devices, and the scraping piece is also connected between two adjacent circular hole devices.
By applying the technical scheme of the invention, the round hole drilling tool is connected to the rotating mechanism through the joint and then is put into the well. The hole repairing drill bit entering the well can crush the protruding structure in the well wall, and the descending obstruction of the sleeve is cleared. Then, the round hole device descending along with the hole repairing drill bit can compact and grind the surface of the well wall to be flat during rotation by virtue of the cylindrical structure of the round hole device, so that the descending resistance of the sleeve is reduced. Thus, the well drilling processed by the round hole drilling tool can be used for running the casing more easily, and the problem that the casing is easy to be blocked in the past is solved.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment one of a round hole drilling tool according to the present invention;
fig. 2 shows a schematic structural view of a second embodiment of a hole drilling tool according to the present invention;
Fig. 3 shows a schematic structural view of a third embodiment of the hole drilling tool according to the present invention.
Wherein the above figures include the following reference numerals:
10. A circular hole device; 11. a joint; 20. a hole-repairing drill bit; 21. a drill collar; 30. a well wall coping device; 31. a connecting body; 32. a wiper member; 33. an intermediate plate.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in other environments. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Fig. 1 shows a first embodiment of the hole drilling tool of the present invention, comprising a hole cutter 10 and a hole repair bit 20. Wherein, the upper end of the round hole device 10 is provided with a joint 11, and the lower end of the round hole device 10 is connected with a hole repairing drill bit 20. The connector 11 is used for connecting a rotating mechanism, and the circular hole device 10 is of a cylindrical structure.
By applying the technical scheme of the invention, the round hole drilling tool is connected to the rotating mechanism through the joint 11 and then is put into the well. The pilot bit 20 that first enters the well breaks the protruding structure in the well wall and clears the casing from the downward obstruction. Then, the round hole device 10 descending along with the hole repairing drill bit 20 can compact and grind the surface of the well wall to be flat during rotation by virtue of the cylindrical structure of the round hole device, so that the descending resistance of the sleeve is reduced. Thus, the well drilling processed by the round hole drilling tool can be used for running the casing more easily, and the problem that the casing is easy to be blocked in the past is solved.
As a preferred embodiment, the radial dimension of the reamer head 20 is greater than or equal to the radial dimension of the circular hole device 10. It should be noted that, when the radial dimension of the hole repairing drill 20 is slightly larger than the radial dimension of the circular hole device 10, the circular hole device 10 can be easily moved down, so that the circular hole drilling tool is more convenient to use. Specifically, during construction, the radial dimension of the hole-repairing drill 20 is generally selected to be 5mm larger than the radial dimension of the circular hole device 10.
In the first embodiment, as shown in fig. 1, a hole-repairing drill bit 20 is connected to a circular hole device 10 through a drill collar 21.
As shown in fig. 2, the present invention further provides a second embodiment of the hole drilling tool, and compared with the first embodiment, the difference is that the hole drilling tool further includes a wall grinding device 30. The well wall dresser 30 is connected between the hole-dressing bit 20 and the circular hole device 10, a cutting edge structure is formed on the circumference of the well wall dresser 30, the cutting edge structure extends along a vertical direction or extends along a direction inclined relative to the vertical direction, and the well wall dresser 30 is used for scraping the surface of the well wall. In general, after the hole is repaired by the hole repairing bit 20, the flatness of the surface of the well wall is relatively poor, and after the surface of the well wall is scratched by the well wall repairing device 30, the flatness of the surface of the well wall can be well improved, so that the round hole device 10 can be used for compacting and polishing the surface of the well wall better. In addition, the abrasion of the well wall surface to the circular hole device 10 can be reduced after the well wall surface is scraped by the well wall dresser 30.
Optionally, the radial dimension of the wall dresser 30 is greater than or equal to the radial dimension of the circular bore device 10. When the radial dimension of the well wall dresser 30 is slightly larger than the radial dimension of the circular hole device 10, the well wall dresser 30 can achieve a good effect of improving flatness, and the circular hole device 10 can achieve a good compacting and leveling effect. Specifically, during construction, the radial dimension of the well wall dresser 30 is generally selected to be 5 mm larger than the radial dimension of the circular hole device 10.
As shown in fig. 2, as an alternative embodiment, a wellbore wall dresser 30 includes a connecting body 31 and a wiper 32. The connecting body 31 is connected between the hole-repairing bit 20 and the circular hole device 10, the scraping member 32 is connected on the outer circumferential surface of the connecting body 31, and the distal end of the scraping member 32, which is far from the connecting body 31, forms a cutting edge structure. As a further alternative, the cutting edge structure may also be an alloy member disposed at the distal end of the wiper member 32 remote from the connecting body 31.
As a preferred embodiment, the number of the scraping members 32 is plural, and the plurality of scraping members 32 are provided at intervals along the outer peripheral surface of the connecting body 31. In this way, the effect of the wall dresser 30 on the surface of the wall can be improved, and the flatness of the wall surface can be further improved. As shown in fig. 1, more preferably, the wall dresser 30 further includes an intermediate plate 33, the intermediate plate 33 being connected to a central portion of the connecting body 31, the intermediate plate 33 being respectively connected to the plurality of wiper members 32. The scraping element 32 is subjected to a large force when scraping the surface of the well wall, and the scraping element 32 is fixed by the middle disc 33, so that the scraping element 32 is fixed on the connecting main body 31 more firmly. Optionally, the intermediate disk 33 is connected to the wiper 32 by welding.
Alternatively, the wall dresser 30 may be integrally formed with the circular hole cutter 10. In this embodiment, the wall dresser 30 is formed to protrude from the integral structure, and may be a rib provided on the integral structure.
As shown in fig. 3, the present invention further provides a third embodiment of a hole drilling tool, which is different from the second embodiment in that the number of hole devices 10 is multiple, the number of hole wall grinding devices 30 is also multiple, the multiple hole devices 10 are arranged at intervals, and two adjacent hole devices 10 are connected through one hole wall grinding device 30. The well wall can be more fully scraped through the plurality of well wall coping devices 30, the well wall can be more fully compacted and flattened through the plurality of round hole devices 10, and the operation effect on the well wall is improved.
As a preferred embodiment, as shown in fig. 3, when the wall dresser 30 is connected between two circular hole devices 10, the connecting body 31 is connected between two adjacent circular hole devices 10, and the scraper 32 is also connected between two adjacent circular hole devices 10. In this way, the scraping piece 32 is connected with the two adjacent circular hole devices 10, so that the connection strength between the two adjacent circular hole devices 10 can be enhanced, the fracture of the connection part is avoided, and the service life of the circular hole drilling tool is prolonged. Optionally, the wiper 32 is welded to the circular hole device 10.
Optionally, in the technical solution of the present invention, the hole-repairing drill bit 20 is a roller bit, and the hole-repairing drill bit 20 is connected with the drill collar 21 through threads.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A round hole drilling tool, comprising:
The circular hole device (10), the upper end of the circular hole device (10) is provided with a joint (11), the joint (11) is used for connecting a rotating mechanism, and the circular hole device (10) is of a cylindrical structure so as to compact and grind the surface of a well wall flat during rotation;
the hole-repairing drill bit (20) is connected to the lower end of the round hole device (10), and the hole-repairing drill bit (20) is used for crushing a protruding structure in a well wall;
The well wall grinding device (30), the well wall grinding device (30) is connected between the hole grinding drill bit (20) and the round hole device (10), a cutting edge structure is formed on the circumference of the well wall grinding device (30), the cutting edge structure extends along the vertical direction or extends along the direction inclined relative to the vertical direction, and the well wall grinding device (30) is used for grinding the surface of the well wall;
the hole repairing drill bit (20) is used for repairing holes firstly, the well wall repairing and grinding device (30) is used for repairing and grinding the surface of the well wall, the round hole device (10) is used for compacting and grinding the surface of the well wall finally, the radial size of the hole repairing and grinding drill bit (20) is larger than or equal to the radial size of the round hole device (10), and the radial size of the well wall repairing and grinding device (30) is larger than or equal to the radial size of the round hole device (10).
2. The hole drilling tool according to claim 1, characterized in that the hole-repairing drill bit (20) is connected with the hole-forming device (10) by means of a drill collar (21).
3. The hole drilling tool as defined in claim 1, wherein the wall dresser (30) includes:
A connecting body (31), the connecting body (31) being connected between the hole-repairing drill (20) and the circular hole device (10);
And the scraping piece (32) is connected to the outer peripheral surface of the connecting body (31), and the distal end of the scraping piece (32) far away from the connecting body (31) forms the cutting edge structure.
4. A round hole drilling tool according to claim 3, wherein the number of wiper members (32) is plural, and the plurality of wiper members (32) are arranged at intervals along the outer peripheral surface of the connecting body (31).
5. The hole drilling tool according to claim 4, wherein the wall dresser (30) further comprises an intermediate plate (33), the intermediate plate (33) being connected to a central portion of the connecting body (31), the intermediate plate (33) being respectively connected to a plurality of wiper members (32), the intermediate plate (33) being adapted to fix the wiper members (32).
6. A round hole drilling tool according to claim 3, wherein a plurality of round hole devices (10) are provided, a plurality of well wall polishing devices (30) are provided, a plurality of round hole devices (10) are arranged at intervals, and two adjacent round hole devices (10) are connected through one well wall polishing device (30).
7. The hole drilling tool according to claim 6, wherein when the wall dresser (30) is connected between two of the hole cutters (10), the connecting body (31) is connected between two adjacent hole cutters (10), and the wiper (32) is also connected between two adjacent hole cutters (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774508.5A CN108868617B (en) | 2018-07-13 | 2018-07-13 | Round hole drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810774508.5A CN108868617B (en) | 2018-07-13 | 2018-07-13 | Round hole drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868617A CN108868617A (en) | 2018-11-23 |
| CN108868617B true CN108868617B (en) | 2024-06-04 |
Family
ID=64301899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810774508.5A Active CN108868617B (en) | 2018-07-13 | 2018-07-13 | Round hole drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868617B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1044770A1 (en) * | 1982-05-06 | 1983-09-30 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники | Apparatus for working borehole walls |
| US4589504A (en) * | 1984-07-27 | 1986-05-20 | Diamant Boart Societe Anonyme | Well bore enlarger |
| CN102635315A (en) * | 2012-04-27 | 2012-08-15 | 中国地质大学（武汉） | Joint with hole-repairing drill bit |
| CN202731798U (en) * | 2012-07-20 | 2013-02-13 | 中国石油化工股份有限公司 | Well wall trimmer |
| CN106168116A (en) * | 2016-08-25 | 2016-11-30 | 中国石油集团渤海钻探工程有限公司 | With boring micro-reaming borehole wall dressing tool and using method thereof |
| CN206000529U (en) * | 2016-08-31 | 2017-03-08 | 北京中能万祺能源技术服务有限公司 | A kind of coal bed gas well with multi-lateral horizontal well system based on straight well transformation |
| CN208441778U (en) * | 2018-07-13 | 2019-01-29 | 北京市华清地热开发集团有限公司 | Circular hole drilling tool |
-
2018
- 2018-07-13 CN CN201810774508.5A patent/CN108868617B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1044770A1 (en) * | 1982-05-06 | 1983-09-30 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Буровой Техники | Apparatus for working borehole walls |
| US4589504A (en) * | 1984-07-27 | 1986-05-20 | Diamant Boart Societe Anonyme | Well bore enlarger |
| CN102635315A (en) * | 2012-04-27 | 2012-08-15 | 中国地质大学（武汉） | Joint with hole-repairing drill bit |
| CN202731798U (en) * | 2012-07-20 | 2013-02-13 | 中国石油化工股份有限公司 | Well wall trimmer |
| CN106168116A (en) * | 2016-08-25 | 2016-11-30 | 中国石油集团渤海钻探工程有限公司 | With boring micro-reaming borehole wall dressing tool and using method thereof |
| CN206000529U (en) * | 2016-08-31 | 2017-03-08 | 北京中能万祺能源技术服务有限公司 | A kind of coal bed gas well with multi-lateral horizontal well system based on straight well transformation |
| CN208441778U (en) * | 2018-07-13 | 2019-01-29 | 北京市华清地热开发集团有限公司 | Circular hole drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108868617A (en) | 2018-11-23 |
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