CN204113225U - Spring sleeve pipe drifting scraper - Google Patents
Spring sleeve pipe drifting scraper Download PDFInfo
- Publication number
- CN204113225U CN204113225U CN201420515172.8U CN201420515172U CN204113225U CN 204113225 U CN204113225 U CN 204113225U CN 201420515172 U CN201420515172 U CN 201420515172U CN 204113225 U CN204113225 U CN 204113225U
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- scraping
- drifting
- section
- sleeve pipe
- spring sleeve
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Abstract
The utility model discloses a kind of spring sleeve pipe drifting scraper, belong to oilfield downhole operation technical field.At least comprise: body, scraping blade, type scraping knife bar, spring, type scraping knife groove, locking briquetting, locking pressing plate, drifting block; Described body excircle is provided with scraping section, middle scraping section, lower drifting section, the surface of described upper scraping section and middle scraping section is respectively arranged with circumferentially equally distributed type scraping knife bar, and mutually staggers, and is provided with scraping blade in described type scraping knife bar; The lower drifting section place of described body is provided with several protruding drifting blocks, forms with scraping blade the same gauge structure of syllogic that drifting and scraping be integrated.Both can be used for checking checking well by property, can remove again and hitch inwall impurity, under enter a casing string, drifting scraping once completes, and shortens activity duration and account for the well cycle, reduces workover treatment labour intensity and operating cost, increases work efficiency.
Description
Technical field
The utility model relates to oilfield downhole operation technical field, particularly a kind of spring sleeve pipe drifting scraper.
Background technology
Before oil gas water well formation testing overhaul upkeep operation, usually scraping two procedures after first drifting is carried out, first API standard drift size gauge tool is selected to pass to artificial bottom of a well according to run through casing size, in order to inspection checking well by property, with ensure major diameter and longer instrument can smoothly under enter predetermined well depth position; Then enter down casing scraper scraping internal surface of sleeve pipe, removing on internal surface of sleeve pipe and retain the impurity such as mortar, cement, hard wax, salt crust and borehole burr, to keep hitching inner wall smooth rule, preventing from damaging entering in the instrument wells such as well packer.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem: the instrument that conventional drifting and scraping use is respective independently drift size gauge tool and scraper, need to enter two casing strings down respectively, twice lower tubular column, there is operational sequence many, operating efficiency is low, and labour intensity is large, and accounting for well cycle stretch-out affects oil gas and the drawback such as to gather.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of spring sleeve pipe drifting scraper.By radial expansion and the same gauge structure of syllogic of scraping blade, realize drifting scraping and once complete, shorten the activity duration and account for the well cycle.Described technical scheme is as follows:
A kind of spring sleeve pipe drifting scraper, at least comprises: body, scraping blade, type scraping knife bar, spring, type scraping knife groove, locking briquetting, locking pressing plate, drifting block; Described body excircle is provided with scraping section, middle scraping section, lower drifting section, the surface of described upper scraping section and middle scraping section is respectively arranged with circumferentially equally distributed type scraping knife bar, and mutually staggers, and is provided with scraping blade in described type scraping knife bar; The lower drifting section place of described body is provided with several protruding drifting blocks, forms with scraping blade the same gauge structure of syllogic that drifting and scraping be integrated.
Particularly, be provided with spring in the hole that described scraping blade inner surface is arranged and drive scraping blade radial expansion, described scraping blade external surface is provided with the spiral type scraping knife groove of dextrorotation.
Particularly, described scraping blade top is provided with locking briquetting, and described locking briquetting top is provided with locking pressing plate, is connected firmly by check bolt and body.
Particularly, upper scraping section and the middle scraping section excircle of described body are provided with circumferentially equally distributed trapezoidal dovetail groove, and trapezoidal locking briquetting is arranged in trapezoidal dovetail groove, is connected firmly on body by lock bolt.
Further, described locking briquetting is good with three pieces, and circumferentially track is uniformly distributed with 120 °.
Further, described drifting block is good with three pieces, and circumferentially track is uniformly distributed with 120 °, and described drifting block external diameter and upper scraping section, middle scraping section external diameter are consistent.
Further, described type scraping knife bar is several, arranges two respectively in upper scraping section and middle scraping section external surface, symmetrical, and is crossing distribution up and down in upper scraping section and middle scraping section place.
Further, described type scraping knife bar arranges three respectively in upper scraping section and middle scraping section external surface, and circumferentially track is 120 ° and is uniformly distributed, and three groups of scraping blades at three groups of scraping blades at upper scraping section place and middle scraping section place mutually stagger 60 ° and distribute.
Particularly, the top connection of described upper scraping section top attachment, connects lower contact bottom lower drifting section.
Particularly, described top connection is provided with internal thread connection oil well pipe; Described lower contact is provided with external screw thread and connects into well tool.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
By analysing workover treatment technique total score, the using function of drift size gauge tool and scraper two pieces instrument is united two into one, be configured for the special tool of sleeve pipe drifting and scraping, the radial expansion of scraping blade and syllogic is utilized to design with gauge structure, both can be used for checking the property passed through verifying well, can remove again and hitch inwall impurity, under enter a casing string, drifting scraping once completes, shorten the activity duration and account for the well cycle, reduce workover treatment labour intensity and operating cost, increase work efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that the master of the spring sleeve pipe drifting scraper structural representation that the utility model embodiment provides looks half sectional view;
Fig. 2 is A-A cross section view in Fig. 1 of providing of the utility model embodiment.
In figure, each symbol represents that implication is as follows:
1 top connection;
2 bodies, scraping section, 2.3 times drifting sections in scraping section, 2.2 on 2.1;
3 lower contacts, 4 scraping blades, 5 type scraping knife bars, 6 springs, 7 type scraping knife grooves, 8 locking briquettings, 9 lock-screws, 10 locking pressing plates, 11 backing-up screws, 12 drifting blocks.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Shown in Figure 1, the utility model embodiment provides a kind of spring sleeve pipe drifting scraper, at least comprises: the component such as top connection 1, body 2, lower contact 3, scraping blade 4, type scraping knife bar 5, spring 6, type scraping knife groove 7, locking briquetting 8, lock-screw 9, locking pressing plate 10, backing-up screw 11, drifting block 12; Particularly, described body 2 is a hollow cylinder, its excircle is processed with scraping section 2.1, middle scraping section 2.2, lower drifting section 2.3, is syllogic overall structure, and upper scraping section 2.1 top attachment top connection 1, connects lower contact 3 bottom lower drifting section 2.3; There is circumferentially equally distributed type scraping knife bar 5 on the surface of described upper scraping section 2.1 and middle scraping section 2.2 respectively turn-milling cutting, and the type scraping knife bar 5 of upper scraping section 2.1 and middle scraping section 2.2 staggers mutually, a scraping blade 4 is installed in each type scraping knife bar 5, each scraping blade 4 inner surface is provided with at least one circular hole, a spring 6 is installed in each hole, under the effect of spring 6, scraping blade 4 can radial expansion, and each scraping blade 4 external surface turn-milling cutting has the spiral type scraping knife groove 7 of dextrorotation; Described scraping blade 4 top is provided with several locking briquettings 8, and locking briquetting 8 top is provided with locking pressing plate 10, is connected firmly by check bolt 11 and body 2.
Simultaneously shown in Figure 2, the upper scraping section 2.1 of described body 2 and middle scraping section 2.2 excircle are provided with circumferentially several trapezoidal dovetail grooves equally distributed, each trapezoidal locking briquetting 8 is arranged in each trapezoidal dovetail groove, is connected firmly on body 2 by lock bolt 9.For three pieces, trapezoidal locking briquetting 8 circumferentially track is uniformly distributed with 120 °.
The lower drifting section 2.3 place turn-milling cutting of described body 2 has several protruding drifting blocks 12, for three pieces, drifting block 12 circumferentially track is evenly distributed on lower drifting section 2.3 surface with 120 °, drifting block 12 external diameter and upper scraping section 2.1, middle scraping section 2.2 external diameter are consistent, and the scraping blade 4 of radial expansion can jointly form the same gauge structure of syllogic that drifting and scraping be integrated.Described top connection 1 is provided with internal thread, for connecting oil well pipe; Described lower contact 3 is provided with external screw thread, for connecting into well tool, can realize down a casing string, once completes drifting and the operation of scraping two procedures.
Further, described type scraping knife bar 5 is several, can arrange two respectively in upper scraping section 2.1 and middle scraping section 2.2 external surface, symmetrical, and is crossing distribution up and down in upper scraping section 2.1 and middle scraping section 2.2 place; Also three can be arranged respectively in upper scraping section 2.1 and middle scraping section 2.2 external surface, circumferentially track is 120 ° and is uniformly distributed, each type scraping knife bar 5 is separately installed with scraping blade 4, and three groups of scraping blades 4 at upper scraping section 2.1 place mutually stagger 60 ° with three groups of scraping blades 4 at middle scraping section 2.2 place and distribute.
The using method of the utility model embodiment and operating principle:
During oil gas water well drifting scraping, top connection 1 is connected in tubing string end by internal thread, make scraping section 2.1, middle scraping section 2.2, lower drifting section 2.3 3 part form overall drifting structure, under enter to shaft bottom or projected depth, carry out in checking sleeve pipe by property operation.
Before going into the well, scraping blade 4 is under the effect of spring 6, slightly larger than body 2 external diameter about 2 ~ 5mm, after G.I.H, under the elastic force effect of spring 4, scraping blade 4 is just close on internal surface of sleeve pipe, now go up scraping section 2.1 and form scraping circular path, by repeatedly lifting the scraping that can realize internal surface of sleeve pipe in pre-doctor locations with upper and lower two groups of scraping blades 4 at middle scraping section 2.2 place.
In addition, the advantage that the utility model embodiment also has: reasonable in design, compact conformation, dependable performance, easy to use.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a spring sleeve pipe drifting scraper, at least comprises: body, scraping blade, type scraping knife bar, spring, type scraping knife groove, locking briquetting, locking pressing plate, drifting block; It is characterized in that, described body excircle is provided with scraping section, middle scraping section, lower drifting section, the surface of described upper scraping section and middle scraping section is respectively arranged with circumferentially equally distributed type scraping knife bar, and mutually staggers, and is provided with scraping blade in described type scraping knife bar; The lower drifting section place of described body is provided with several protruding drifting blocks, forms with scraping blade the same gauge structure of syllogic that drifting and scraping be integrated.
2. spring sleeve pipe drifting scraper according to claim 1, is characterized in that, be provided with spring in the hole that described scraping blade inner surface is arranged and drive scraping blade radial expansion, described scraping blade external surface is provided with the spiral type scraping knife groove of dextrorotation.
3. spring sleeve pipe drifting scraper according to claim 1, it is characterized in that, described scraping blade top is provided with locking briquetting, and described locking briquetting top is provided with locking pressing plate, is connected firmly by check bolt and body.
4. spring sleeve pipe drifting scraper according to claim 1, it is characterized in that, upper scraping section and the middle scraping section excircle of described body are provided with circumferentially equally distributed trapezoidal dovetail groove, and trapezoidal locking briquetting is arranged in trapezoidal dovetail groove, is connected firmly on body by lock bolt.
5. spring sleeve pipe drifting scraper according to claim 1, is characterized in that, described locking briquetting is good with three pieces, and circumferentially track is uniformly distributed with 120 °.
6. spring sleeve pipe drifting scraper according to claim 1, is characterized in that, described drifting block is good with three pieces, and circumferentially track is uniformly distributed with 120 °, and described drifting block external diameter and upper scraping section, middle scraping section external diameter are consistent.
7. spring sleeve pipe drifting scraper according to claim 1, it is characterized in that, described type scraping knife bar is several, arranges two respectively in upper scraping section and middle scraping section external surface, symmetrical, and be crossing distribution up and down in upper scraping section and middle scraping section place.
8. spring sleeve pipe drifting scraper according to claim 1, it is characterized in that, described type scraping knife bar arranges three respectively in upper scraping section and middle scraping section external surface, circumferentially track is 120 ° and is uniformly distributed, and three groups of scraping blades at three groups of scraping blades at upper scraping section place and middle scraping section place mutually stagger 60 ° and distribute.
9. spring sleeve pipe drifting scraper according to claim 1, is characterized in that, the top connection of described upper scraping section top attachment, connects lower contact bottom lower drifting section.
10. spring sleeve pipe drifting scraper according to claim 9, is characterized in that, described top connection is provided with internal thread and connects oil well pipe; Described lower contact is provided with external screw thread and connects into well tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515172.8U CN204113225U (en) | 2014-09-09 | 2014-09-09 | Spring sleeve pipe drifting scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515172.8U CN204113225U (en) | 2014-09-09 | 2014-09-09 | Spring sleeve pipe drifting scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113225U true CN204113225U (en) | 2015-01-21 |
Family
ID=52330549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420515172.8U Expired - Fee Related CN204113225U (en) | 2014-09-09 | 2014-09-09 | Spring sleeve pipe drifting scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113225U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201457A (en) * | 2015-10-15 | 2015-12-30 | 中国海洋石油总公司 | Cleaning tool for outer wall of oil well casing |
| CN105604523A (en) * | 2015-12-25 | 2016-05-25 | 贵州高峰石油机械股份有限公司 | Method for improving pipe scraper and pipe scraper |
| CN105971561A (en) * | 2016-06-23 | 2016-09-28 | 中石化石油工程技术服务有限公司 | Composite sleeve scraper for well drilling |
| CN110410037A (en) * | 2019-08-27 | 2019-11-05 | 阜宁县石油机械有限公司 | A kind of casing scraper |
| CN114737920A (en) * | 2021-01-07 | 2022-07-12 | 中国石油天然气股份有限公司 | Drifting and scraping composite tool |
-
2014
- 2014-09-09 CN CN201420515172.8U patent/CN204113225U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201457A (en) * | 2015-10-15 | 2015-12-30 | 中国海洋石油总公司 | Cleaning tool for outer wall of oil well casing |
| CN105604523A (en) * | 2015-12-25 | 2016-05-25 | 贵州高峰石油机械股份有限公司 | Method for improving pipe scraper and pipe scraper |
| CN105971561A (en) * | 2016-06-23 | 2016-09-28 | 中石化石油工程技术服务有限公司 | Composite sleeve scraper for well drilling |
| CN110410037A (en) * | 2019-08-27 | 2019-11-05 | 阜宁县石油机械有限公司 | A kind of casing scraper |
| CN114737920A (en) * | 2021-01-07 | 2022-07-12 | 中国石油天然气股份有限公司 | Drifting and scraping composite tool |
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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: 20150121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |