CN206329317U - One kind is with brill formula sleeve pipe wall scraper - Google Patents
One kind is with brill formula sleeve pipe wall scraper Download PDFInfo
- Publication number
- CN206329317U CN206329317U CN201621186438.4U CN201621186438U CN206329317U CN 206329317 U CN206329317 U CN 206329317U CN 201621186438 U CN201621186438 U CN 201621186438U CN 206329317 U CN206329317 U CN 206329317U
- Authority
- CN
- China
- Prior art keywords
- knife plate
- sleeve pipe
- mandrel
- pipe wall
- scraper
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model is to be a kind of with brill formula sleeve pipe wall scraper, including lower contact, mandrel, under help set, scraping assembly, on help set, top connection, wherein scraping assembly is constituted by scraping knife plate, spring, knife plate set, fixed cover, scrape knife plate to be limited in the installation site that knife plate covers by fixed cover, several springs are housed between knife plate covers and scraped knife plate.Can freely it be rotated between scraping assembly and mandrel, when drilling tool drives upper lower contact and mandrel high speed rotation, scraping assembly can still keep the geo-stationary with internal surface of sleeve pipe, it can reduce and scrape the knife plate ring cutting unhelpful to internal surface of sleeve pipe progress, extend scraper service life, it is easy to terrestrial operation simultaneously, saves the number of times made a trip.
Description
Technical field
The utility model is petroleum drilling operation device, is a kind of underground work for being used to be drilled well guarantee hole quality
Tool.
Background technology
Due to stratum condition and the complexity of construction technology, the inwall of sleeve pipe is often attached with substantial amounts of cement block, water
The fouls, nothing such as the iron oxide produced by after mud ring, hard wax, various saline crystallizations or deposit, perforation burrs and sleeve pipe corrosion
The unblocked underground of method enters the various downhole tools such as fishing socket, centralizer, packer, influences drilling and well completion efficiency of construction, sternly
Heavy even can cause bit freezing problem.To ensure total completion time, it is necessary to be cleared up after well cementation internal surface of sleeve pipe, it is ensured that sleeve pipe
Effective internal diameter meets standard, and does not influence normal drilling operation, and this requires a kind of sleeve pipe wall scraper of various conventional drilling tool.
Existing wall scraper scraper plate part is connected as a single entity with mandrel, rotates and rotates with drill string, so internal surface of sleeve pipe will be carried out unhelpful
Ring cutting, serious scratch is caused for internal surface of sleeve pipe, while scraper service life can be had a strong impact on.
The content of the invention
The utility model devises a kind of sleeve pipe wall scraper with the formula of boring, and solves the deficiencies in the prior art, improves completion work
Have into well quality, effectively improve completion practice efficiency.
The utility model design with bore formula sleeve pipe wall scraper it is main by lower contact, mandrel, under help set, scraping assembly, on
Help the parts such as set, top connection constitute, under help set, scraping assembly, on help set by order from bottom to top mounted in mandrel outside, mandrel
Two ends are connected as one by screw thread with top connection and lower contact, upper lower contact limitation scraping assembly and the axial displacement for helping set,
The inner headed face and mandrel periphery formation cylindrical pair of set and scraping assembly are helped up and down, it is free to rotate relative to mandrel.
Scraping assembly is the main functional parts of wall scraper, main building block for two groups scrape knife plate, spring, knife plate set,
Fixed cover.Help set to constrain its axial location on mandrel up and down, set two ends are helped up and down by being connected to connecing up and down for mandrel two ends
Head limitation.
Knife plate, knife plate set, mandrel are scraped by high-strength alloy structure steel making, scraping working surface and matching surface are through spraying
Carbide alloy of nickel-base processing, nickel-base alloy hardness is suitable with sleeve pipe hardness, with preferable wear resistence.
Beneficial effect：
1. the utility model have above and below two groups scrape knife plate, every group of 4 pieces of tiles scrapers are put installed in knife plate, with group in scrape
90 ° of knife uniform intervals, scrape knife plate stagger arrangement for two groups up and down, scrape bevel and circumferentially cover rate more than 100%.
2. knife plate set is freely rotatable using mandrel as axle, knife plate set inner surface and mandrel outer surface are surface-treated, and are had
Have very high hardness and wearability, in underground by drilling fluid cooling and lubricating, the pressure of the drill and rotating speed of normal drilling well can be born, reach with
Bore the effect used.
3. scrape knife plate to be limited in the installation site that knife plate covers by fixed cover, equipped with number between knife plate covers and scraped knife plate
Root spring.In instrument sleeve pipe, under the effect of tube wall extruding force, knife plate compression spring is scraped to contract, while in sleeve pipe
Wall forms enough pressure.
Brief description of the drawings
Fig. 1 is with the installation diagram for boring formula sleeve pipe wall scraper embodiment.
Fig. 2 is scraping assembly schematic diagram
Fig. 3 is scraping assembly local expansion schematic diagram
Embodiment
The embodiment of this patent is illustrated with reference to Fig. 1.
Embodiment of the present utility model includes lower contact 1, O-ring 2 and 12, mandrel 3, lower supporting positive cover 4, scrapes knife plate 5, spring
6th, fixed cover 7, screw 8, packing ring 9, knife plate set 10, upper supporting positive cover 11, top connection 13.
As shown in figure state, it is internal and external threads above and below the instrument, can be connected to normally according to the sleeve position of required cleaning
In drifting drilling tool string.Scrape knife plate 5, spring 6, fixed cover 7, knife plate set 10 constitute scraping assemblies (see Fig. 2, Fig. 3), its inner headed face with
Mandrel periphery is frictional fit, therefore scraping assembly forms cylindrical pair with mandrel.Scraping the bullet between knife plate 5 and knife plate set 10
Under spring 6 is acted on, (two groups up and down, every group 4 pieces) of knife plate 5 is scraped in maximum open configuration, external diameter at knife plate 5 is now scraped and is more than sleeve pipe
Internal diameter.Needed for reach during the sleeve pipe of cleaning, inwardly knife plate 5 is scraped in extruding to internal surface of sleeve pipe, force scrape the compression spring 6 of knife plate 5 and to
Contract, now instrument enter working condition.In normal drifting, the frictional force of scraping assembly and internal surface of sleeve pipe prevents both
Between relative rotation trend, even if drilling tool drive joint (1,13) and mandrel 3 rotate at a high speed, scraping assembly can still be kept and sleeve pipe
The geo-stationary of inwall.And when spudding action, be restricted due to being axially moved, knife plate set 10, which drives, scrapes knife plate 5 one
Moved with drilling tool, the debris that the scraper with horizontal knife can will be attached to internal surface of sleeve pipe is peeled off by force, plays cleaning sleeve pipe
The effect of inwall.Due to the design that double-deck scraper circumferentially covers rate more than 100%, instrument, drilling tool rotary are not rotated all to scraping
Cutting effect does not influence, and terrestrial operation is very simple.
Instrument of the present utility model is designed using split, and knife plate, which covers 10 and scrapes knife plate 5, can individually be rotated and subjected to quite turn
The characteristic of speed so that the instrument is different from other conventional drifting instruments, can be with other logical without individually formulating brill, drifting parameter
Well drill bit, instrument together enter well, and operation is simple, save the number of times made a trip, effectively improve completion casing inner wall cleaning efficiency and
Cleaning quality.
With brill formula sleeve pipe wall scraper working range：Rotating speed 0-90rpm, the pressure of the drill 0-12t.
Claims (6)
1. a kind of with boring formula sleeve pipe wall scraper, including lower contact, mandrel, under help set, scraping assembly, on help set, top connection, wherein
Under help set, scraping assembly, on help set by order from bottom to top on the outside of the mandrel, mandrel two ends by screw thread and top connection and
Lower contact is connected as one, upper lower contact limitation scraping assembly and the axial displacement for helping set, it is characterised in that：Set is helped up and down and is scraped
The inner headed face and mandrel periphery formation cylindrical pair of assembly are cut, free to rotate relative to mandrel, scraping assembly is set using split
Meter, is constituted by scraping knife plate, spring, knife plate set, fixed cover, is scraped knife plate and is limited in by fixed cover in the installation site that knife plate covers,
Several springs are housed between knife plate covers and scraped knife plate.
2. it is according to claim 1 with brill formula sleeve pipe wall scraper, it is characterised in that scraping assembly includes two groups of scrapers up and down
Plate, scrapes knife plate for two groups and is staggered in arrangement.
3. it is according to claim 2 with brill formula sleeve pipe wall scraper, it is characterised in that to scrape knife plate for every group and be made up of 4 pieces of scrapers,
90 ° of scraper uniform intervals.
4. it is according to claim 3 with brill formula sleeve pipe wall scraper, it is characterised in that the scraper is tiles scraper.
5. any described with boring formula sleeve pipe wall scraper according to claim 1-4, it is characterised in that it is described scrape knife plate, knife plate set,
Mandrel is by high-strength alloy structure steel making, and its scraping working surface and component matching surface are through spraying at carbide alloy of nickel-base
Reason.
6. it is any described with boring formula sleeve pipe wall scraper according to claim 1-4, it is characterised in that the work of described sleeve pipe wall scraper
It is as condition and range：Rotating speed 0-90rpm, the pressure of the drill 0-12t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186438.4U CN206329317U (en) | 2016-11-04 | 2016-11-04 | One kind is with brill formula sleeve pipe wall scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186438.4U CN206329317U (en) | 2016-11-04 | 2016-11-04 | One kind is with brill formula sleeve pipe wall scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329317U true CN206329317U (en) | 2017-07-14 |
Family
ID=59286796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621186438.4U Active CN206329317U (en) | 2016-11-04 | 2016-11-04 | One kind is with brill formula sleeve pipe wall scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329317U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114526035A (en) * | 2021-12-31 | 2022-05-24 | 中国石油天然气集团有限公司 | Casing cleaning tool and related mechanism, method and application thereof |
-
2016
- 2016-11-04 CN CN201621186438.4U patent/CN206329317U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114526035A (en) * | 2021-12-31 | 2022-05-24 | 中国石油天然气集团有限公司 | Casing cleaning tool and related mechanism, method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8887836B2 (en) | Drilling systems for cleaning wellbores, bits for wellbore cleaning, methods of forming such bits, and methods of cleaning wellbores using such bits | |
| US20090272524A1 (en) | Method and apparatus for cleaning internal surfaces of downhole casing strings and other tubular goods | |
| US20100147594A1 (en) | Reverse nozzle drill bit | |
| US20060207796A1 (en) | Multi-function downhole tool | |
| CN206329317U (en) | One kind is with brill formula sleeve pipe wall scraper | |
| US6758275B2 (en) | Method of cleaning and refinishing tubulars | |
| US10519734B2 (en) | Downhole milling tool apparatus | |
| CN110886582A (en) | Integrated drilling tool for crushing and cleaning drilling well debris deposit bed | |
| CN104763367B (en) | Drifting and pipe scraping integrated tool | |
| CN108005614A (en) | Slip-type tubing string scraper | |
| US20020023748A1 (en) | Method and apparatus for washing subsea drilling rig equipment and retrieving wear bushings | |
| CN108104752B (en) | Coring device and coring method for rock salt exploration engineering | |
| CA2944868C (en) | Rotatively mounting cutters on a drill bit | |
| CN207296967U (en) | A kind of telescopic tube scraping cleaning means | |
| CN110374554B (en) | Integral rotatable pipe scraping device | |
| NO20121207A1 (en) | BORE KRONE | |
| US7950450B2 (en) | Apparatus and methods of cleaning and refinishing tubulars | |
| CN115711100A (en) | Method for finishing shaft treatment by using pointed bit milling cone | |
| US20180298697A1 (en) | Bi-Axial Drill Bits and Bit Adaptors | |
| US4285408A (en) | Reverse circulating tool | |
| US10519735B2 (en) | Downhole-milling-tool method | |
| CN204627487U (en) | Drifting and pipe scraping integrated tool | |
| CN221761858U (en) | Underground sand removal tool and drilling tool assembly | |
| CN214741188U (en) | Well hole trimming device for well drilling | |
| RU2160818C1 (en) | Gear to clean holes from mud |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |