CN205618133U - Spring rotary casing scraper - Google Patents
Spring rotary casing scraper Download PDFInfo
- Publication number
- CN205618133U CN205618133U CN201620445270.8U CN201620445270U CN205618133U CN 205618133 U CN205618133 U CN 205618133U CN 201620445270 U CN201620445270 U CN 201620445270U CN 205618133 U CN205618133 U CN 205618133U
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- CN
- China
- Prior art keywords
- spring
- knife plate
- mandrel
- plate set
- cover
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- 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
Spring rotary casing scraper relates to oil machinery. Including dabber (1) and scraper plate (2), scraper plate (2) are equipped with spring (3) butt on the inner wall of scraper plate (2), and scraper plate (2) and be provided in a side of on cutting board cover (4) rather than spring (3) of butt, cutting board cover (4) are rotationally overlapped on dabber (1), dabber (1) is still overlapped in the both ends of cutting board cover (4) and is set upright or straight set (5), sets upright or straight set outer wall of (5) and is equipped with the slope and sets up or be the leading of heliciform setting arris (6), at up -and -down motion's in -process, leads arris (6) and the contact of cover inside pipe wall, can be under the effect of set inside pipe wall the messenger set upright or straight set (5) and rotate for dabber (1) to it rotates together to drive cutting board cover (4) and scraper plate (2). It have structural design reasonable, scrape thoroughly fully and scrape efficient advantage the wall of a well.
Description
Technical field
This utility model relates to petroleum machinery, and the structure being specifically related to a kind of casing scraper is improved.
Background technology
Casing scraper is used for scraping internal surface of sleeve pipe, removes cement, hard wax, salt crust and borehole burr on internal surface of sleeve pipe, is workover treatment important procedure together with normal underground work.When more domestic oil fields and external oil and water well construction operation, use scraper to become a kind of requisite operation, its object is to enter under raising instrument the success rate with operation.At present, the scraper part of existing casing scraper all uses fixed structure, and when operation, scraper can not circumferentially rotate, and can only do the linear motion on above-below direction, and scraping efficiency is relatively low, there is borehole wall scraping problem insufficient, halfway in some cases.
Summary of the invention
Technical problem to be solved in the utility model is: provide the spring revoling tube scraper that a kind of scraper part has spinfunction.
Technical solution of the present utility model is: spring revoling tube scraper, including mandrel and the takeoff apron being provided with scraping portion, the two ends of mandrel are provided with threaded joints and are connected with top connection and lower contact respectively, takeoff apron is provided with spring and is connected on the inwall of takeoff apron, described takeoff apron and the spring abutted with it are located at knife plate and put, knife plate set is enclosed within described mandrel rotationally, mandrel is also cased with supporting positive cover in the two ends that knife plate overlaps, the outer wall of supporting positive cover be provided be obliquely installed or arrange in the shape of a spiral lead rib, during pumping, lead rib when contacting with internal surface of sleeve pipe, supporting positive cover can be made under the effect of set inwall to rotate relative to mandrel, thus drive knife plate set to rotate together with knife plate.
Of the present utility model have the technical effect that it has reasonable in design, to borehole wall scraping fully thoroughly and the high advantage of scraping efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, spring revoling tube scraper, including mandrel 1 and the takeoff apron 2 being provided with scraping portion, the two ends of mandrel 1 are provided with the threaded joints being connected respectively with top connection and lower contact, takeoff apron 2 is provided with spring 3 and is connected on the inwall of takeoff apron 2, described takeoff apron 2 and the spring 3 abutted with it are located on knife plate set 4, knife plate set 4 is enclosed within described mandrel 1 rotationally, mandrel 1 is also cased with supporting positive cover 5 in the two ends of knife plate set 4, the outer wall of supporting positive cover 5 be provided be obliquely installed or arrange in the shape of a spiral lead rib 6, during pumping, lead rib 6 to contact with internal surface of sleeve pipe, supporting positive cover 5 can be made under the effect of internal surface of sleeve pipe to rotate relative to mandrel 1, thus drive knife plate set 4 to rotate together with takeoff apron 2.
The outer wall of described mandrel 1 is provided with shoulder 7, and one end of knife plate set 4 abuts with shoulder 7, so that shoulder 7 bears the axial force that scraping produces.
Described knife plate overlaps 4 two groups be at least arranged above and below, and is provided with fixed cover 8 and is spaced between two groups of knife plate sets 4, and fixed cover 8 is connected by bolt 9 is fixing with described knife plate set 4.
The end that described fixed cover 8 contacts with described takeoff apron 2 with described supporting positive cover 5 sets extension eaves 10, and takeoff apron 2 is that the stop of the extension eaves 10 by fixed cover 8 and supporting positive cover 5 end prevents abjection.Extension eaves 10 can also be arranged on and individually be fixed on knife plate set 4 parts as fixed cover 8, realizes barrier functionality, rather than is located on supporting positive cover 5.
Upper and lower joint is screwed onto the two ends of mandrel, and is tightly connected by sealing member.Supporting positive cover is spacing by the end of upper and lower joint so that it is can not move axially on mandrel.Takeoff apron is multiple, is divided at least two groups and is arranged above and below, and between different groups, dislocation is arranged, to improve scraping efficiency.Mandrel outer surface is welded with antifriction alloy with knife plate set and upper and lower supporting positive cover inner surface portion junction, and upper and lower supporting positive cover end is connected end with upper lower contact and is also welded with antifriction alloy, plays the effect of sliding bearing.
Spring revoling tube scraper is a kind of novel casing scraper, owing to the takeoff apron on scraper during upper and lower scraping has spinfunction relative to scraping drilling tool, therefore has scraping area big, and the sufficient advantage of scraping substantially increases scraping efficiency.
The operation principle of spring revoling tube scraper is such as the cylindrical reamer in machining, blade excision internal surface of sleeve pipe attachment smoothing internal surface of casing.It is bigger than casing inner diameter that knife plate maximum installs external diameter, under when entering in sleeve pipe cutter hub dead spring inside contract, knife plate is close to internal surface of sleeve pipe.Pumping, casing wall can be scraped clearly operation by knife plate.Owing to spring revoling tube scraper has spinfunction, without rotating scraping drilling tool during pumping.
Claims (4)
- null1. spring revoling tube scraper，Including mandrel (1) and the takeoff apron (2) that is provided with scraping portion，The two ends of mandrel (1) are provided with the threaded joints being connected respectively with top connection and lower contact，Takeoff apron (2) is provided with spring (3) and is connected on the inwall of takeoff apron (2)，It is characterized in that，Described takeoff apron (2) and the spring (3) abutted with it are located on knife plate set (4)，Knife plate set (4) is enclosed within described mandrel (1) rotationally，Mandrel (1) is also cased with supporting positive cover (5) in the two ends of knife plate set (4)，The outer wall of supporting positive cover (5) be provided be obliquely installed or arrange in the shape of a spiral lead rib (6)，During pumping，Lead rib (6) to contact with internal surface of sleeve pipe，Supporting positive cover (5) can be made under the effect of internal surface of sleeve pipe to rotate relative to mandrel (1)，Thus drive knife plate set (4) to rotate together with takeoff apron (2).
- 2. spring revoling tube scraper as claimed in claim 1, it is characterised in that the outer wall of described mandrel (1) is provided with shoulder (7), and one end of knife plate set (4) abuts with shoulder (7), so that shoulder (7) bears the axial force that scraping produces.
- 3. spring revoling tube scraper as claimed in claim 1, it is characterized in that, at least be arranged above and below two groups of described knife plate set (4), are provided with fixed cover (8) interval between two groups of knife plate sets (4), fixed cover (8) and described knife plate set (4) are fixed by bolt (9) and be connected.
- 4. spring revoling tube scraper as claimed in claim 3, it is characterized in that, the end that described fixed cover (8) contacts with described takeoff apron (2) with described supporting positive cover (5) sets extension eaves (10), and takeoff apron (2) is that the stop of the extension eaves (10) by fixed cover (8) and supporting positive cover (5) end prevents abjection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445270.8U CN205618133U (en) | 2016-05-17 | 2016-05-17 | Spring rotary casing scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620445270.8U CN205618133U (en) | 2016-05-17 | 2016-05-17 | Spring rotary casing scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618133U true CN205618133U (en) | 2016-10-05 |
Family
ID=57023514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620445270.8U Expired - Fee Related CN205618133U (en) | 2016-05-17 | 2016-05-17 | Spring rotary casing scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618133U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377051A (en) * | 2016-11-11 | 2017-02-08 | 贵州高峰石油机械股份有限公司 | Novel hairbrush pipe scraping device |
| CN110410037A (en) * | 2019-08-27 | 2019-11-05 | 阜宁县石油机械有限公司 | A kind of casing scraper |
| CN110894780A (en) * | 2018-09-13 | 2020-03-20 | 中国石油化工股份有限公司 | Self-rotating scraping casing pipe processor for oil-water well workover |
| CN111894522A (en) * | 2020-07-28 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Damping hydraulic power type switchable rotary scraping sleeve milling tool |
| CN113216903A (en) * | 2021-05-25 | 2021-08-06 | 中石化石油工程技术服务有限公司 | Mechanical unfreezing non-rotating casing scraper |
-
2016
- 2016-05-17 CN CN201620445270.8U patent/CN205618133U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377051A (en) * | 2016-11-11 | 2017-02-08 | 贵州高峰石油机械股份有限公司 | Novel hairbrush pipe scraping device |
| CN106377051B (en) * | 2016-11-11 | 2018-06-12 | 贵州高峰石油机械股份有限公司 | A kind of novel brush scrapes pipe device |
| CN110894780A (en) * | 2018-09-13 | 2020-03-20 | 中国石油化工股份有限公司 | Self-rotating scraping casing pipe processor for oil-water well workover |
| CN110410037A (en) * | 2019-08-27 | 2019-11-05 | 阜宁县石油机械有限公司 | A kind of casing scraper |
| CN111894522A (en) * | 2020-07-28 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Damping hydraulic power type switchable rotary scraping sleeve milling tool |
| CN113216903A (en) * | 2021-05-25 | 2021-08-06 | 中石化石油工程技术服务有限公司 | Mechanical unfreezing non-rotating casing scraper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20170517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |