CN209195262U - Wellbore conditioning tool and drill string - Google Patents
Wellbore conditioning tool and drill string Download PDFInfo
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- CN209195262U CN209195262U CN201821510701.XU CN201821510701U CN209195262U CN 209195262 U CN209195262 U CN 209195262U CN 201821510701 U CN201821510701 U CN 201821510701U CN 209195262 U CN209195262 U CN 209195262U
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- rib
- wellbore
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- dressing tool
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- 230000003750 conditioning effect Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract description 16
- 238000005553 drilling Methods 0.000 abstract description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 8
- 239000003345 natural gas Substances 0.000 abstract description 4
- 230000036346 tooth eruption Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 12
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model discloses a well repairing tool and drilling string belongs to oil and natural gas drilling technical field. The wellbore conditioning tool comprises a body 1, a cutting edge 2 and a cutting tooth 3, wherein: the body 1 is provided with a hollow tubular structure; the cutting edge 2 is arranged on the outer wall of the body 1; a first part of the cutting edge 2 close to the upper end of the body 1 has a stepped structure, and a second part of the cutting edge 2 close to the lower end of the body 1 has a stepped structure; the ladder structure of the first part and the ladder structure of the second part are respectively provided with a plurality of steps, the height of each step of the first part is gradually increased from the position close to the upper end to the position far away from the upper end, and the height of each step of the second part is gradually increased from the position close to the lower end to the position far away from the lower end; the cutting teeth 3 are arranged on the stepped structure of the first part and the stepped structure of the second part. Adopt the utility model discloses, can effectively solve among the correlation technique the wall of a well and maintain the technical problem who increases well drilling comprehensive cost.
Description
Technical field
The utility model relates to oil and natural gas drilling technology fields, and in particular to a kind of wellbore dressing tool and brill
Column.
Background technique
With further going deep into for petroleum natural gas exploration, the stratum that petroleum natural gas exploration encounters is increasingly
Deep, formation lithology is gradually become by more stable lithologic character stratum structure with expansile shale or with the ooze of creep properties
The complicated special lithologic character stratum structure such as rock.Therefore, necking down (the i.e. borehole wall at some positions of wellbore often occurs for some wellbores
Internal diameter reduces) the phenomenon that, cause casing cannot smooth tripping in wellbore, influence subsequent operation.
In the related technology modify the borehole wall method be, after the completion of wellbore construction carry out reaming operation (i.e. with before necking down
The identical drill bit of wellbore internal diameter makees upper and lower and rotary motion in wellbore), to achieve the purpose that modify the borehole wall, to remove contracting
Neck guarantees that casing job is gone on smoothly.
In implementing the present disclosure, inventor discovery in the related technology the prior art has at least the following problems:
The work for modifying the borehole wall in the related technology can only carry out after the completion of wellbore construction, when not only adding additional construction
Between, while man power and material is also additionally consumed, further increase drilling well overall cost.
Utility model content
In order to solve technical problem present in the relevant technologies, present disclose provides a kind of wellbore dressing tool and drill strings.
The technical solution of the wellbore dressing tool and drill string is as follows:
The embodiment of the present disclosure provides a kind of wellbore dressing tool, the wellbore dressing tool include ontology, cutting rib and
Cutting tooth, in which:
Ontology have in lead to tubular structure；
Cutting rib is arranged on the outer wall of ontology；
Cutting first part of the rib close to ontology upper end has hierarchic structure, second part of the cutting rib close to ontology lower end
With hierarchic structure；
The hierarchic structure of the first part and the hierarchic structure of the second part are respectively provided with multistage ladder, and described
The ladders at different levels of a part by increasing close to the upper end to far from the upper end level step by step, the ranks at different levels of the second part
Ladder by increasing close to the lower end to far from the lower end height step by step；
Cutting tooth is arranged in the hierarchic structure of the first part and the hierarchic structure of the second part；
Ontology upper end with the first drill string for being fixedly connected, and ontology lower end with the second drill string for being fixedly connected.
Optionally, cutting rib includes reaming cutting rib and back reaming cutting rib, and reaming cutting rib is located at back reaming cutting rib
Lower section, the hierarchic structure of the first part are located on back reaming cutting rib, and the hierarchic structure of the second part is located at reaming
It cuts on rib.
Optionally, reaming cutting rib and back reaming cutting rib are arranged on the body in the shape of a spiral.
Optionally, reaming cutting rib is opposite with the back reaming cutting hand of spiral of rib；
Every reaming cutting rib back reaming corresponding with position cuts the V-shaped distribution of rib.
Optionally, reaming cutting rib and back reaming cutting rib are inlayed on the body.
Optionally, the quantity of reaming cutting rib and back reaming cutting rib is.
Optionally, ontology upper end is provided with internal screw thread or external screw thread.
Optionally, ontology lower end is provided with internal screw thread or external screw thread.
Optionally, cutting tooth is embedded in the hierarchic structure of the first part and the hierarchic structure of the second part.
The embodiment of the present disclosure provides a kind of drill string, and the drill string includes the first drill string, any institute of the second drill string and front
The wellbore dressing tool stated, in which:
First drill string is fixedly connected with the ontology upper end of the wellbore dressing tool, second drill string and the well
The ontology lower end of eye dressing tool is fixedly connected.
The technical scheme provided by this disclosed embodiment can include the following benefits:
The ontology upper end of wellbore dressing tool can be fixedly connected with the first drill string, and the ontology lower end of wellbore dressing tool can
To be fixedly connected with the second drill string.Wellbore dressing tool can carry out wellbore construction with drill string and drill bit.In drilling process
In, wellbore dressing tool is rotated and is crept into drill string, is cut the hierarchic structure of the second part of rib and is arranged above
Cutting tooth modifies the borehole wall in rotation and drilling process, eliminates necking down.In trip-out process, wellbore dressing tool is with drill string
Rotation and raising, cut the first part of rib hierarchic structure and the cutting tooth being arranged above rotation and trip-out process in,
The borehole wall is modified again.It can be carried out the borehole wall recondition during wellbore construction, without additionally increasing construction
Time, while man power and material is not also consumed additionally, and then does not increase drilling well overall cost.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.In the accompanying drawings:
Fig. 1 is the structural schematic diagram according to a kind of wellbore dressing tool for implementing to exemplify；
Fig. 2 be according to implement a kind of wellbore dressing tool A-A for exemplifying to schematic cross-section.
Marginal data
1, tool body, 2, cutting rib, 3, cutting tooth, 201, reaming cutting rib, 202, back reaming cutting rib.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
The utility model embodiment provides a kind of wellbore dressing tool, as shown in Figure 1, wellbore dressing tool includes ontology
1, rib 2 and cutting tooth 3 are cut.Ontology 1 have in lead to tubular structure.Cutting rib 2 is arranged on the outer wall of ontology 1.Cut rib 2
First part close to 1 upper end of ontology has hierarchic structure, and second part of the cutting rib 2 close to 1 lower end of ontology has ladder knot
Structure.The hierarchic structure of first part and the hierarchic structure of second part are respectively provided with multistage ladder, the ladders at different levels of first part
Increased step by step by being arrived close to upper end far from upper end level, the ladders at different levels of second part by close to lower end to separate lower end height by
Grade increases.Cutting tooth 3 is arranged in the hierarchic structure of first part and the hierarchic structure of second part.1 upper end of ontology be used for
First drill string is fixedly connected, and 1 lower end of ontology with the second drill string for being fixedly connected.
In an implementation, 1 middle section of ontology has annular recess, and cutting rib 2 is arranged on the annular recess.Wellbore finishing
The maximum outside diameter of tool is less than the maximum outside diameter of drill bit.
When 1 upper end of ontology is fixedly connected with the first drill string, and 1 lower end of ontology is fixedly connected with the second drill string, in ontology 1
Logical tubular structure is communicated with tubular structure logical in the first drill string and the second drill string.Drilling fluid can pass through the first drill string, well
Eye dressing tool and the second drill string, most spray through drill bit afterwards.Then drilling fluid can carry the rock generated during wellbore construction
Annular space between outer wall and the borehole wall of the bits through drill bit, the second drill string, wellbore dressing tool and the first drill string rises to ground.
Rib 2 is cut close to the hierarchic structure of the first part of 1 upper end of ontology, the work of the finishing borehole wall is played in drilling process
With the multistage ladder in hierarchic structure can increase wellbore dressing tool to the finishing effect of the borehole wall.Meanwhile the rank of first part
The presence of multistage ladder can also reduce a possibility that drill string is stuck in drilling process in terraced structure.
Rib 2 is cut close to the hierarchic structure of the second part of 1 lower end of ontology, the work of the finishing borehole wall is played in trip-out process
With the multistage ladder in hierarchic structure can increase wellbore dressing tool to the finishing effect of the borehole wall.Meanwhile the rank of second part
The presence of multistage ladder can also reduce a possibility that drill string is stuck in trip-out process in terraced structure.
Optionally, cutting rib 2 can be made of two components, and corresponding structure can be such that cutting rib 2 includes reaming
It cuts rib 201 and back reaming cuts rib 202, reaming cutting rib 201 is located at 202 lower section of back reaming cutting rib, the rank of first part
Terraced structure is located on back reaming cutting rib 202, and the hierarchic structure of second part is located on reaming cutting rib 201.
In an implementation, the quantity of reaming cutting rib 201 and back reaming cutting rib 202 is 4.Rib 201 is cut in four reamings
It is distributed uniformly and circumferentially on ontology 1, four back reaming cutting ribs 202 are distributed uniformly and circumferentially on ontology 1.
Optionally, in order to which wellbore dressing tool is not easy to be stuck in underground, rib 201 is cut in reaming and back reaming cuts rib 202
It is arranged on ontology 1 in the shape of a spiral.
In an implementation, reaming cutting rib 201 is opposite with the back reaming cutting hand of spiral of rib 202.Rib is cut in every reaming
201 back reamings corresponding with position cut the V-shaped distribution of rib 202, as shown in Figure 1.It is designed based on this structure, is not only made
During wellbore construction, wellbore dressing tool is not easy to be stuck in underground, and is also beneficial to what wellbore construction generated in the process
Landwaste is discharged on ground.
Optionally, the replacement of the cutting rib of damage for convenience, reaming cutting rib 201 and back reaming cutting rib 202 are inlayed
On ontology 1.
In an implementation, multiple grooves are offered on 1 outer wall of ontology, rib 201 is cut in reaming and back reaming cutting rib 202 is arranged
In a groove.After having cutting rib damage, the cutting rib of damage can be directly replaced, without changing entire wellbore dressing tool
Fall.Meanwhile cutting rib and being arranged on 1 outer wall of ontology in a manner of inlaying, than stronger.
Optionally, for the ease of the dismounting between wellbore dressing tool and drill string, 1 upper end of ontology is provided with internal screw thread or outer spiral shell
Line.
In an implementation, 1 lower end of ontology is provided with internal screw thread or external screw thread.Preferably, 1 upper end of ontology is provided with internal screw thread,
1 lower end of ontology is provided with external screw thread, as shown in Figure 1.
Optionally, the replacement of the cutting tooth of abrasion for convenience, cutting tooth 3 are embedded in the hierarchic structure and the of first part
In the hierarchic structure of two parts.
In an implementation, cutting tooth 3 is embedded in the hierarchic structure of reaming cutting rib 201 and the ladder of back reaming cutting rib 202
In structure, as depicted in figs. 1 and 2.Multiple grooves are offered on reaming cutting rib 201 and back reaming cutting 202 outer wall of rib, are cut
Tooth 3 is arranged in a groove.After cutting tooth 3 is worn to a certain extent, new cutting tooth 3 can be inlayed, again so as to protect
Wellbore dressing tool is demonstrate,proved to the finishing effect of the borehole wall.
The utility model embodiment provides a kind of drill string, and drill string includes the first drill string, any institute of the second drill string and front
The wellbore dressing tool stated, in which: the first drill string is fixedly connected with 1 upper end of ontology of wellbore dressing tool, the second drill string and well
1 lower end of ontology of eye dressing tool is fixedly connected.
In actual operation, the course of work of wellbore dressing tool and drill string is as follows:
1 upper end of ontology of wellbore dressing tool is connect with the first drill string thread, by 1 lower end of ontology of wellbore dressing tool
It is connect with the second drill string thread.Then, wellbore construction will be carried out in drill string and drill bit lower going-into-well.In drilling process, wellbore is repaired
Whole tool is rotated and is crept into drill string, the hierarchic structure on four reaming cutting ribs 201 and the cutting tooth 3 being arranged above
The borehole wall is modified in rotation and drilling process, eliminates necking down.In trip-out process, wellbore dressing tool with drill string rotation and
Raising, four back reamings cut the hierarchic structure on ribs 202 and the cutting tooth 3 being arranged above in rotation and trip-out process,
The borehole wall is modified again.By using wellbore dressing tool provided by the embodiment of the utility model, in wellbore construction mistake
It can be carried out borehole wall recondition in journey, do not increase the construction time additionally, while also not consuming man power and material additionally,
And then drilling well overall cost is not increased.
After those skilled in the art consider specification and practice the disclosure, it will readily occur to other embodiment party of the disclosure
Case.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or adaptability
Variation follows the general principles of this disclosure and including the undocumented common knowledge or usual skill in the art of the disclosure
Art means.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following claim
It points out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (10)
1. a kind of wellbore dressing tool, which is characterized in that the wellbore dressing tool includes ontology (1), cutting rib (2) and cuts
Tooth (3), in which:
Ontology (1) have in lead to tubular structure；
Rib (2) are cut to be arranged on the outer wall of ontology (1)；
Cutting the first part of rib (2) close to ontology (1) upper end has hierarchic structure, and cutting rib (2) is close to ontology (1) lower end
Second part has hierarchic structure；
The hierarchic structure of the first part and the hierarchic structure of the second part are respectively provided with multistage ladder, and described first
Point ladders at different levels by increasing step by step close to the upper end to the separate upper end level, the ladders at different levels of the second part by
Increase step by step close to the lower end to far from the lower end height；
Cutting tooth (3) is arranged in the hierarchic structure of the first part and the hierarchic structure of the second part；
Ontology (1) upper end with the first drill string for being fixedly connected, and ontology (1) lower end with the second drill string for being fixedly connected.
2. wellbore dressing tool according to claim 1, which is characterized in that cutting rib (2) includes reaming cutting rib (201)
Rib (202) are cut with back reaming, reaming cutting rib (201) is located at below back reaming cutting rib (202), the rank of the first part
Terraced structure is located in back reaming cutting rib (202), and the hierarchic structure of the second part is located in reaming cutting rib (201).
3. wellbore dressing tool according to claim 2, which is characterized in that rib (201) and back reaming cutting are cut in reaming
Rib (202) is arranged in the shape of a spiral on ontology (1).
4. wellbore dressing tool according to claim 2, which is characterized in that rib (201) are cut in reaming and back reaming is cut
The hand of spiral of rib (202) is opposite；
Every reaming cutting rib (201) back reaming corresponding with position cuts rib (202) V-shaped distribution.
5. wellbore dressing tool according to claim 2, which is characterized in that rib (201) and back reaming cutting are cut in reaming
Rib (202) is embedded on ontology (1).
6. wellbore dressing tool according to claim 2, which is characterized in that rib (201) and back reaming cutting are cut in reaming
The quantity of rib (202) is 4.
7. wellbore dressing tool according to claim 1, which is characterized in that ontology (1) upper end is provided with internal screw thread or outer
Screw thread.
8. wellbore dressing tool according to claim 1, which is characterized in that ontology (1) lower end is provided with internal screw thread or outer
Screw thread.
9. wellbore dressing tool according to claim 1, which is characterized in that cutting tooth (3) is embedded in the first part
Hierarchic structure and the second part hierarchic structure on.
10. a kind of drill string, which is characterized in that the drill string includes the first drill string, the second drill string and claim 1-9 any described
Wellbore dressing tool, in which:
First drill string is fixedly connected with ontology (1) upper end of the wellbore dressing tool, second drill string and the well
Ontology (1) lower end of eye dressing tool is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821510701.XU CN209195262U (en) | 2018-09-14 | 2018-09-14 | Wellbore conditioning tool and drill string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821510701.XU CN209195262U (en) | 2018-09-14 | 2018-09-14 | Wellbore conditioning tool and drill string |
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| Publication Number | Publication Date |
|---|---|
| CN209195262U true CN209195262U (en) | 2019-08-02 |
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ID=67406147
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821510701.XU Active CN209195262U (en) | 2018-09-14 | 2018-09-14 | Wellbore conditioning tool and drill string |
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| CN (1) | CN209195262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943140A (en) * | 2021-03-03 | 2021-06-11 | 河南易发石油工程技术有限公司 | Drilling rod column provided with hole repairing device and used for drilling |
| CN113863857A (en) * | 2021-01-18 | 2021-12-31 | 中国石油天然气集团有限公司 | Drilling tool assembly for drifting and logging one-trip drilling of horizontal well and one-trip drilling method |
-
2018
- 2018-09-14 CN CN201821510701.XU patent/CN209195262U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863857A (en) * | 2021-01-18 | 2021-12-31 | 中国石油天然气集团有限公司 | Drilling tool assembly for drifting and logging one-trip drilling of horizontal well and one-trip drilling method |
| CN112943140A (en) * | 2021-03-03 | 2021-06-11 | 河南易发石油工程技术有限公司 | Drilling rod column provided with hole repairing device and used for drilling |
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