CN203321442U - Multifunctional casing scraper for downhole operation - Google Patents
Multifunctional casing scraper for downhole operation Download PDFInfo
- Publication number
- CN203321442U CN203321442U CN2013203205023U CN201320320502U CN203321442U CN 203321442 U CN203321442 U CN 203321442U CN 2013203205023 U CN2013203205023 U CN 2013203205023U CN 201320320502 U CN201320320502 U CN 201320320502U CN 203321442 U CN203321442 U CN 203321442U
- Authority
- CN
- China
- Prior art keywords
- drifting
- well
- casing
- scraping blade
- blade
- 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
Links
- 238000007790 scraping Methods 0.000 claims abstract description 21
- 238000001556 precipitation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A multifunctional casing scraper for downhole operation belongs to the technical field of oil and gas well inspection tools. The drifting casing is connected with the scraping blade, the blade spring is installed behind the scraping blade, the wedge-shaped block is connected to the drifting casing through a fixing screw, and the fixing stop block is connected to the drifting casing through a fixing screw. The utility model has the characteristics of as follows: the functions of mud displacement, well dredging, scraping, well washing and the like are integrated, and the structure is compact; the tool is internally and externally provided with larger flow channels, so that the drill jamming caused by impurity precipitation when the flow area is changed can be effectively prevented; the structure is simple, the operation is convenient, and the maintenance and the use can be carried out for many times; the pipe string is pulled out and lowered for 4 times, the well is washed for 1 time, the construction period is reduced for 1.5 to 2 days every well, and the using amount of the well washing liquid is reduced by half.
Description
Technical field
The utility model relates to the logical curette of a kind of underground work Multifunctional casing, belongs to Oil/gas Well instruments of inspection technical field.
Background technology
The similar tools function singleness of current domestic use, realize that above-mentioned functions must be used tip bit, drift size gauge tool and three kinds of instruments of scraper, removes tubing string 6 times, well-flushing 2 times.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provide a kind of underground work Multifunctional casing lead to curette+.
Drift size gauge tool and scraper are made of one, and outside instrument is large path position, the circulation passage that interlaced arrangement is larger, form perforation by undergauge.
A kind of underground work Multifunctional casing leads to curette, and drifting housing 1 connects scraping blade 2, and blade spring 3 is arranged on the back of paring blade 2, and wedge 5 is connected to drifting housing 1 by hold-down screw 4, and fixed stop 6 is connected to drifting housing 1 by hold-down screw.
The utlity model has following features: integrate functions such as replacing mud, drifting, scraping, well-flushing, compact conformation; Larger circulation passage is all arranged inside and outside instrument, and in the time of effectively preventing the circulation area variation, contamination precipitation causes bit freezing; Simple in structure, easy to operate, can repeatedly maintain use; Reduced lower tubular column 4 times, well-flushing 1 time, every well reduces construction period 1.5-2 days, and the flushing fluid consumption reduces half.
Operating principle: instrument integral body is drift size gauge tool, the outside staggered circulation groove that has, the larger latus rectum of inner maintenance; The first half is the scraper part, and the outer flow groove connects by undergauge, and because larger passage is all arranged inside and outside instrument, while guaranteeing that instrument removes, borehole fluid can pass through tool body smoothly, and while preventing the circulation area variation, contamination precipitation causes bit freezing.And can be under instrument during to precalculated position, utilize inside and outside major path to replace the techniques such as liquid, well-flushing; The scraping blade that scraper partly adopts two groups of circumferential arrangement, mutually staggers, guaranteeing that internal surface of sleeve pipe is whole circumferentially has scraping blade to carry out scraping, does not stay remnants.Structural alloy steel through nitrogen treatment for scraping blade, surface has large helical pitch helicla flute, only need in sleeve pipe, the handling operation can complete scraping
The accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to following, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model, as schemed wherein:
Fig. 1 is structural representation of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The specific embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1, a kind of underground work Multifunctional casing leads to curette, and drifting housing 1 connects scraping blade 2, and blade spring 3 is arranged on the back of paring blade 2, wedge 5 is connected to drifting housing 1 by hold-down screw 4, and fixed stop 6 is connected to drifting housing 1 by hold-down screw.
As mentioned above, embodiment of the present utility model is explained, but, as long as not breaking away from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation also all is included in protection domain of the present utility model.
Claims (3)
1. the logical curette of underground work Multifunctional casing, is characterized in that the drifting housing connects scraping blade, and the blade spring fitting is in the back of paring blade, and wedge is connected to the drifting housing by hold-down screw, and fixed stop is connected to the drifting housing by hold-down screw.
2. the logical curette of a kind of underground work Multifunctional casing according to claim 1, is characterized in that scraping blade is two groups of circumferential arrangement, mutually staggers, and scraping blade is spacing by wedge, fixed stop, relatively is fixed on the drifting housing.
3. the logical curette of a kind of underground work Multifunctional casing according to claim 1, is characterized in that the scraping blade surface has large helical pitch helicla flute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203205023U CN203321442U (en) | 2013-06-05 | 2013-06-05 | Multifunctional casing scraper for downhole operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203205023U CN203321442U (en) | 2013-06-05 | 2013-06-05 | Multifunctional casing scraper for downhole operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321442U true CN203321442U (en) | 2013-12-04 |
Family
ID=49660805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203205023U Expired - Fee Related CN203321442U (en) | 2013-06-05 | 2013-06-05 | Multifunctional casing scraper for downhole operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321442U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295258A (en) * | 2014-10-08 | 2015-01-21 | 宝鸡瑞通石油装备有限公司 | Novel drifting-wall scraping integrated operating gauge cutter and operating pipe column |
| CN104763367A (en) * | 2015-03-24 | 2015-07-08 | 中国石油天然气股份有限公司 | Drifting and pipe scraping integrated tool |
| CN106150434A (en) * | 2016-08-25 | 2016-11-23 | 山东三田临朐石油机械有限公司 | Top uncoupling type paraffin scraper |
| CN106285563A (en) * | 2015-06-01 | 2017-01-04 | 中国石油天然气股份有限公司 | Wall scraper and well-flushing wall scraping method |
| CN108661597A (en) * | 2017-03-28 | 2018-10-16 | 中国石油化工股份有限公司 | A kind of underground work integration wellbore treatments tool and method |
| CN110410037A (en) * | 2019-08-27 | 2019-11-05 | 阜宁县石油机械有限公司 | A kind of casing scraper |
-
2013
- 2013-06-05 CN CN2013203205023U patent/CN203321442U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295258A (en) * | 2014-10-08 | 2015-01-21 | 宝鸡瑞通石油装备有限公司 | Novel drifting-wall scraping integrated operating gauge cutter and operating pipe column |
| CN104295258B (en) * | 2014-10-08 | 2017-08-29 | 宝鸡瑞通石油装备有限公司 | The integral operation gauguste cutter of new dredging, scraping wall and working string |
| CN104763367A (en) * | 2015-03-24 | 2015-07-08 | 中国石油天然气股份有限公司 | Drifting and pipe scraping integrated tool |
| CN106285563A (en) * | 2015-06-01 | 2017-01-04 | 中国石油天然气股份有限公司 | Wall scraper and well-flushing wall scraping method |
| CN106285563B (en) * | 2015-06-01 | 2019-08-02 | 中国石油天然气股份有限公司 | Wall scraper and well-flushing wall scraping method |
| CN106150434A (en) * | 2016-08-25 | 2016-11-23 | 山东三田临朐石油机械有限公司 | Top uncoupling type paraffin scraper |
| CN106150434B (en) * | 2016-08-25 | 2019-04-05 | 山东三田临朐石油机械有限公司 | Top uncoupling type paraffin scraper |
| CN108661597A (en) * | 2017-03-28 | 2018-10-16 | 中国石油化工股份有限公司 | A kind of underground work integration wellbore treatments tool and method |
| CN108661597B (en) * | 2017-03-28 | 2023-10-24 | 中国石油化工股份有限公司 | Underground operation integrated shaft treatment tool and method |
| CN110410037A (en) * | 2019-08-27 | 2019-11-05 | 阜宁县石油机械有限公司 | A kind of 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: 20131204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |