CN207048733U - A kind of hydraulic type paraffin cutting drill bit - Google Patents
A kind of hydraulic type paraffin cutting drill bit Download PDFInfo
- Publication number
- CN207048733U CN207048733U CN201720961356.0U CN201720961356U CN207048733U CN 207048733 U CN207048733 U CN 207048733U CN 201720961356 U CN201720961356 U CN 201720961356U CN 207048733 U CN207048733 U CN 207048733U
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- CN
- China
- Prior art keywords
- plunger
- paraffin
- cylinder
- drill bit
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of hydraulic type paraffin cutting drill bit is the utility model is related to, its structure includes cylinder, plunger, fulcrum, paraffin scraper, it is characterised in that：Box is arranged at described cylinder top, can be docked with top tubing string, has step in the middle part of cylinder, described plunger is located in cylinder and axially movable, plunger upper part has step, and described fulcrum is located at cylinder body bottom, and described paraffin scraper is connected with plunger bottom by cutting with scissors constraint, moved downward by hydraulic pressure control plunger, and then open paraffin scraper and start paraffin cutting, reach and do not accidentally injure downhole tool, reduce the time for removing paraffin cutting instrument, reduce workover cost, the purpose increased economic efficiency.
Description
Technical field
The utility model belongs to wax removal mechanical field under oil well, and in particular to a kind of hydraulic type paraffin cutting drill bit.
Background technology
When exploitation is containing the higher crude oil of wax, certain thickness wax is often deposited in tubing and casing, this can not only cause
Pumping unit load increases, and pipe aperture can be made to attenuate, and causes oil well drop production, and the impurity of the content of wax constantly rubs with sucker rod
Wiping can reduce sucker rod service life.Conventional wax removal technique has mechanical paraffin removal, hot-washing wax remover, electrothermal paraffin removal and chemical Paraffin Removal
Deng.By taking mechanical paraffin removal as an example, the paraffin scraper not flexible of conventional mechanical paraffin removal device, if being provided with ratio in oil jacket inside pipe wall
During the smaller underground equipment of oil jacket bore, often cause the damage of paraffin scraper or downhole tool, therefore, research one kind can
Flexible paraffin cutting drill bit is necessary.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of hydraulic type paraffin cutting drill bit, and the drill bit can pass through liquid
Pressure control system control paraffin scraper stretches out or packed up, and does not reach wax deposition section either when removing paraffin cutting instrument or runs into internal diameter
During more smaller than oil jacket bore downhole tool, paraffin scraper can be packed up, opens paraffin scraper when reaching wax deposition well section again, carries out oil jacket
Pipe wax removal works.
In order to solve the above technical problems, technical scheme is used by the utility model：
A kind of hydraulic type paraffin cutting drill bit, its structure include cylinder, plunger, fulcrum, paraffin scraper, it is characterised in that：Described
Box is arranged at cylinder top, can be docked with top tubing string, there is step in the middle part of cylinder, and it is interior and vertically that described plunger be located at cylinder
Motion, plunger upper part have step, and described fulcrum is located at cylinder body bottom, and described paraffin scraper constrains phase with plunger bottom by cutting with scissors
Even, moved downward by hydraulic pressure control plunger, and then open paraffin scraper.
Design principle of the present utility model：
The present apparatus mainly make use of slide block mechanism mechanically.Wax deposition section or chance are not reached either when removing paraffin cutting instrument
During to the internal diameter downhole tool more smaller than oil jacket bore, moved upwards by hydraulic pressure control plunger, due to paraffin scraper and plunger
It is connected, cylinder effect drives side paraffin scraper to withdraw, and so as to reduce the time for removing paraffin cutting instrument, and does not accidentally injure underground work
Tool.When reaching wax deposition well section, hydraulic drives sliding sleeve is moved down, and paraffin scraper can be opened by point action, is completed tubing and casing and is scraped
Wax task.
The beneficial effects of the utility model：
It can be seen that a kind of hydraulic type paraffin cutting drill bit provided by the utility model can pass through hydraulic pressure by above-mentioned principle design
Control paraffin scraper stretches out or packed up, and can be packed up when oil jacket inside pipe wall is provided with the underground equipment more smaller than oil jacket bore
Paraffin scraper, operation is carried out by opening paraffin scraper after the device again, downhole tool is not accidentally injured when carrying out paraffin cutting operation；Do not sending
During up to wax deposition section, paraffin scraper can be packed up, wax deposition Duan Shizai is reached and opens paraffin scraper, can substantially reduce and remove paraffin cutting instrument
Time, reduce workover cost, increase economic efficiency；The apparatus structure is simple, practical, and feasibility is good, and it is clear to be competent at underground
Wax operation.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of hydraulic type paraffin cutting drill bit of the utility model embodiment 1.In figure：1 cylinder, 2 plungers, 3
Fulcrum, 4 paraffin scrapers.
Embodiment
Embodiment 1
A kind of hydraulic type paraffin cutting drill bit, its structure include cylinder, plunger, fulcrum, paraffin scraper, it is characterised in that：Described
Box is arranged at cylinder top, can be docked with top tubing string, there is step in the middle part of cylinder, and it is interior and vertically that described plunger be located at cylinder
Motion, plunger upper part have step, and described fulcrum is located at cylinder body bottom, and described paraffin scraper constrains phase with plunger bottom by cutting with scissors
Even, moved downward by hydraulic pressure control plunger, and then open paraffin scraper.
The undeclared part being related in the utility model is same as the prior art or is realized using prior art.
Claims (1)
1. a kind of hydraulic type paraffin cutting drill bit, its structure includes cylinder (1), plunger (2), fulcrum (3), paraffin scraper (4), and its feature exists
In：Box is arranged at described cylinder (1) top, can be docked with top tubing string, has step, described plunger (2) in the middle part of cylinder (1)
In cylinder (1) and axially movable, step is arranged at plunger (2) top, and described fulcrum (3) is located at cylinder (1) bottom, described
Paraffin scraper (4) and plunger (2) bottom be connected by cutting with scissors constraint, moved downward by hydraulic pressure control plunger (2), and then opening is scraped
Wax disk(-sc) (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961356.0U CN207048733U (en) | 2017-08-03 | 2017-08-03 | A kind of hydraulic type paraffin cutting drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961356.0U CN207048733U (en) | 2017-08-03 | 2017-08-03 | A kind of hydraulic type paraffin cutting drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207048733U true CN207048733U (en) | 2018-02-27 |
Family
ID=61500042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720961356.0U Expired - Fee Related CN207048733U (en) | 2017-08-03 | 2017-08-03 | A kind of hydraulic type paraffin cutting drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207048733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405260A (en) * | 2022-09-29 | 2022-11-29 | 广东石油化工学院 | Wax removal tool based on coiled tubing and method thereof |
-
2017
- 2017-08-03 CN CN201720961356.0U patent/CN207048733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405260A (en) * | 2022-09-29 | 2022-11-29 | 广东石油化工学院 | Wax removal tool based on coiled tubing and method thereof |
| CN115405260B (en) * | 2022-09-29 | 2024-02-02 | 广东石油化工学院 | Paraffin removal tool based on coiled tubing and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100040 room 1301, China coal resource building, 3 building, 59 Yuquanlu Road, Shijingshan District, Beijing. Patentee after: BEIJING DADI GAOKE GEOLOGICAL EXPLORATION CO.,LTD. Address before: 100040 room 1301, China coal resource building, 3 building, 59 Yuquanlu Road, Shijingshan District, Beijing. Patentee before: BEIJING DADI GAOKE CBM ENGINEERING AND TECHNOLOGICAL Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| DD01 | Delivery of document by public notice |
Addressee: Lin Zhongyue Document name: Notice of Patent Termination |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |