CN101113664A - Oil passageway cleaning telescopic roll doctor and working method - Google Patents
Oil passageway cleaning telescopic roll doctor and working method Download PDFInfo
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- CN101113664A CN101113664A CNA2006100484645A CN200610048464A CN101113664A CN 101113664 A CN101113664 A CN 101113664A CN A2006100484645 A CNA2006100484645 A CN A2006100484645A CN 200610048464 A CN200610048464 A CN 200610048464A CN 101113664 A CN101113664 A CN 101113664A
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Abstract
The invention provides a telescopic scraper for cleaning an oil field pipe and a work method thereof and relates to an apparatus for cleaning the oil pipe in the oil field. The apparatus is formed by connecting a cutter body, a cutter block, a telescopic block (a cutter block seat), a position-restricted pin and a spring. The cutter body, the basic bearer of the telescopic scraper, is hollow in the middle and is used for the transmission of the washing water. The left end of the cutter body is connected with the inner thread, which is used for connecting a rotation-powered water injection hollow shaft; the guild holes are cruciatedly and symmetrically distributed on the cutter body along the radial direction, and the telescopic block, the position of which is restricted by the position-restricted pin, is arranged in the guild holes, and can lengthen and shorten freely within certain scopes in the same direction with the guild holes; the position-restricted pin is riveted on the cutter body; a spring seat, in the middle of which is the spring, is positioned inside the telescopic block; on the telescopic block that shares the same axis with the spring is a water drainage hole, which can drain the washing water promptly; the alloy cutter block, which is welded accordingly on the outer side of the telescopic block used for oil scraping by clinging to the inner wall of the oil pipe, can expand and contract synchronously with the telescopic block.
Description
One, technical field:
The present invention relates to a kind of oil pipeline clear utensil, especially oil passageway cleaning telescopic roll doctor and method of work.
Two, background technology:
Along with the day of crude oil is becoming tight, oil price can be in any more, and the oil extraction difficulty in the many oil fields of China is increasing, in order to reduce cost, improves output, and the reparation inspecting force of old oil pipe has all been strengthened in each oil field.Wherein, utilizing mechanical doctor that oil pipe is carried out scraping and clean, is one of important process measure that is developed in the oil pipe reparation in recent years.
For many years, oil pipe is repaired the cleaning in the line, the used scraper of logical thorn is the overall fixed formula, and the skiving blade of this scraper and cutter hub are for fixedlying connected, and the scraping diameter is immutable in the use.At present, the logical thorn scraper washed of domestic each oilfield oil pipe heat mostly is triangular integral body and processes; The scale removal scraper that injection well tubing cleans adopts cutter piece and the direct welding processing of cutter hub to form more; There is producer to develop adjusting scraper in recent years, scraper scraping diameter can be adjusted according to actual needs in advance, but in adjusted use, the cutter piece still is fixedly connected with respect to cutter hub, blade is still constant with cutter hub centre distance, and the scraping diameter can only maintain in the fixed value scope of being set up in advance.
In the actual oil pipe reparation in oil field is produced, on the one hand, because the makers' technological factor of some oil pipes, cause part oil pipe port diameter less than the internal standard diameter, form the port undergauge, what have reaches 2 millimeters cut-offs, on the other hand, oil pipe makes some oil pipes produce local distortion under the multiple factor affecting of use, and circle is lost in the cross section.All of these factors taken together all makes fixed scraper during fabrication, external diameter must be less than oil pipe normal inner diameter certain value, guarantee to have certain interval with the tube wall of normal inner diameter, otherwise, can not be if the scraper external diameter, can cause frequent swaging clamp too near pipe aperture by the situation (these oil pipes still can use after cleaning reparation) of scrapping.Therefore, actual scraper that uses and tube inner wall all have big gap in cleaning at present, and this has just influenced cleaning quality, particularly cleans for hard incrustation scale oil pipe, and it is residual often to form dirty skin, brings many adverse effects to crude oil production.
Three, summary of the invention:
The oil passageway cleaning telescopic roll doctor and the method for work that the purpose of this invention is to provide a kind of many ribs that can stretch, it has overcome the shortcoming of other technology, the object of the present invention is achieved like this, and it is to be formed by connecting by cutter hub, cutter piece, flexible piece (cutter block), spacer pin, spring.Cutter hub is the basic supporting body of flexible scraper, and the centre is a cavity, and in order to the transmission flushing water, left end is for connecting internal thread, in order to connect rotary power water filling hollow shaft; Cutter hub radial symmetric intersection is driven the cloth pilot hole, and flexible piece is spacing by spacer pin, is installed in the pilot hole, and can freely stretches along the pilot hole direction within the specific limits; Spacer pin is riveted on the cutter hub; There is spring base flexible piece inboard, and spring is positioned at wherein; Being has the water hole on the flexible piece of spring coaxial line, in time discharge flushing water on one side; Be welded with corresponding alloy knife piece in the flexible piece outside, with flexible piece synchronization telescope, in order to be close to the tube inner wall scraping.
Method of work, scraper enters in the oil pipe, the rib sword of scraper is close to tube inner wall all the time with certain strength, under the drive of external hollow shaft, rotate with certain speed, be injected into flushing water simultaneously, like this, flexible piece just is subjected to the force action of spring force, water pressure, rotary centrifugal force, form enough contractilities, make blade be close to tube inner wall.When running into pipe aperture expansion, flexible piece is stretched in expansion under the effect of power, and it is overhanging to drive the cutter piece; When running into pipe aperture and dwindle, under the effect of power is contracted in the inwall reaction, make the cutter piece together with receiving in the flexible piece, like this, no matter be standard pipe, or reducing pipe, or the certain deformation pipe, this scraper can both make blade be close to tube inner wall by flexible automatically, carries out high-quality scraping and cleans
Innovative point and performance characteristics:
1, exploitation of this device and utilization, making skiving blade be close to tube inner wall all the time becomes a reality, be that domestic taking the lead in takes to utilize automatic tube inner wall to become the new mode that real flexible scraper comes the wash oil inside pipe wall, start the new way of mechanical doctor wash oil inside pipe wall, improved scraping cleaning quality and adaptive capacity greatly.
2, in the structure of this device,, better organically combine and arrange, make it in limited space, to be able to good embodiment, and can give full play to its function pilot hole, water hole, spring base, limit pin hole.
3, each root spring of this device acts on two flexible pieces of symmetry simultaneously, has not only saved the space, has also increased flexible scope, has stablized contractility.
4, this device is made of multitool sword, multi-expansion piece, and the every pair of flexible piece is arranged crosswise radially, makes cutter piece skiving blade circumferentially also intersect uniformly, and therefore, scraper is self-centering all the time in oil pipe.Each flexible piece is flexible, is independent of each other, and helps improving scraping quality and compliance more.
5, the contractility that is provided with in this device can guarantee that the oil pipe scraping is clean, can not damage inwall again.
6, this device is not influenced by hydraulic pressure and rotary speed, even use very little low-pressure water and very low rotary speed, can guarantee that scraping is clean yet.
7, this apparatus structure is simple, and workpiece is few, and each position cooperates connection and reasonable arrangement, is difficult for stopping up jam, reliable operation during use.
Four, description of drawings:
Fig. 1 is the structural representation of oil passageway cleaning telescopic roll doctor and method of work, among the figure 1, cutter hub 2, cutter piece 3, flexible piece (cutter block) 4, spacer pin 5, spring
Five, the specific embodiment:
In Fig. 1, cutter hub 1 is the basic supporting body of flexible scraper, and the centre is a cavity, and left end is for connecting internal thread; Cutter hub 1 radial symmetric intersection is driven the cloth pilot hole; Flexible piece 3 is installed in the pilot hole, and spacer pin 4 is riveted on the cutter hub 1; There is spring base flexible piece 3 inboards, and spring 5 is positioned at wherein; With the flexible piece 3 of spring 5 coaxial lines on the water hole is arranged; Be welded with corresponding alloy knife piece 2 in flexible piece 3 outsides.
Method of work, scraper enters in the oil pipe, the rib sword of scraper is close to tube inner wall all the time with certain strength, under the drive of external hollow shaft, rotate with certain speed, be injected into flushing water simultaneously, like this, flexible piece just is subjected to the force action of spring force, water pressure, rotary centrifugal force, form enough contractilities, make blade be close to tube inner wall.When running into pipe aperture expansion, flexible piece is stretched in expansion under the effect of power, and it is overhanging to drive the cutter piece; When running into pipe aperture and dwindle, under the effect of power is contracted in the inwall reaction, make the cutter piece together with receiving in the flexible piece, like this, no matter be standard pipe, or reducing pipe, or certain deformation pipe, this scraper can both make blade be close to tube inner wall by flexible automatically, carries out high-quality scraping and cleans.
Claims (5)
1. oil passageway cleaning telescopic roll doctor, it is to be formed by connecting by cutter hub (1), cutter piece (2), flexible piece (3), spacer pin (4), spring (5), it is characterized in that: cutter hub (1) radial symmetric intersection is driven the cloth pilot hole, flexible piece (3) is installed in the pilot hole, and spacer pin (4) is riveted on the cutter hub (1); Be welded with corresponding alloy knife piece (2) in flexible piece (3) outside.
2. oil passageway cleaning telescopic roll doctor according to claim 1 is characterized in that: be cavity in the middle of the cutter hub (1), left end is for connecting internal thread.
3. oil passageway cleaning telescopic roll doctor according to claim 1 is characterized in that: with the flexible piece (3) of spring (5) coaxial line on the water hole is arranged.
4. oil passageway cleaning telescopic roll doctor according to claim 1 is characterized in that: there is spring base flexible piece (3) inboard, and spring (5) is positioned at wherein.
5. the method for work of the described oil passageway cleaning telescopic roll doctor of claim 1, it is characterized in that: scraper enters in the oil pipe, the rib sword of scraper is close to tube inner wall all the time with certain strength, under the drive of external hollow shaft, rotate with certain speed, be injected into flushing water simultaneously, like this, flexible piece just is subjected to the force action of spring force, water pressure, rotary centrifugal force, form enough contractilities, make blade be close to tube inner wall; When running into pipe aperture expansion, flexible piece is stretched in expansion under the effect of power, and it is overhanging to drive the cutter piece; When running into pipe aperture and dwindle, under the effect of power is contracted in the inwall reaction, make the cutter piece together with receiving in the flexible piece, like this, no matter be standard pipe, or reducing pipe, or certain deformation pipe, this scraper can both make blade be close to tube inner wall by flexible automatically, carries out high-quality scraping and cleans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100484645A CN101113664A (en) | 2006-07-27 | 2006-07-27 | Oil passageway cleaning telescopic roll doctor and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100484645A CN101113664A (en) | 2006-07-27 | 2006-07-27 | Oil passageway cleaning telescopic roll doctor and working method |
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| Publication Number | Publication Date |
|---|---|
| CN101113664A true CN101113664A (en) | 2008-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100484645A Pending CN101113664A (en) | 2006-07-27 | 2006-07-27 | Oil passageway cleaning telescopic roll doctor and working method |
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| CN (1) | CN101113664A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043624A (en) * | 2013-03-15 | 2014-09-17 | 宝山钢铁股份有限公司 | Continuous ladle long nozzle cleaning device and method |
| CN104070240A (en) * | 2014-06-05 | 2014-10-01 | 中国石油大学(北京) | Spring type stripping cutting tool |
| CN105597970A (en) * | 2015-12-28 | 2016-05-25 | 上海力申科学仪器有限公司 | Sprinkling device with retractable cleaning rack |
| CN106862197A (en) * | 2017-04-10 | 2017-06-20 | 成都大漠石油技术有限公司 | Suitable for the petroleum pipeline cleaning device of different-diameter |
| CN110529074A (en) * | 2019-10-20 | 2019-12-03 | 达坦能源科技（上海）有限公司 | A kind of drill bit synchronous rotary pipeline scraper |
| CN114054274A (en) * | 2021-11-22 | 2022-02-18 | 上海兴生实业有限公司 | Robot for spraying waterproof layer on sewer pipe |
| CN114352270A (en) * | 2022-03-18 | 2022-04-15 | 四川圣诺油气工程技术服务有限公司 | Identification system for tubing operation coupling without killing well |
-
2006
- 2006-07-27 CN CNA2006100484645A patent/CN101113664A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043624A (en) * | 2013-03-15 | 2014-09-17 | 宝山钢铁股份有限公司 | Continuous ladle long nozzle cleaning device and method |
| CN104043624B (en) * | 2013-03-15 | 2016-06-01 | 宝山钢铁股份有限公司 | Con casting ladle long nozzle clearing apparatus and cleaning method |
| CN104070240A (en) * | 2014-06-05 | 2014-10-01 | 中国石油大学(北京) | Spring type stripping cutting tool |
| CN105597970A (en) * | 2015-12-28 | 2016-05-25 | 上海力申科学仪器有限公司 | Sprinkling device with retractable cleaning rack |
| CN106862197A (en) * | 2017-04-10 | 2017-06-20 | 成都大漠石油技术有限公司 | Suitable for the petroleum pipeline cleaning device of different-diameter |
| CN110529074A (en) * | 2019-10-20 | 2019-12-03 | 达坦能源科技（上海）有限公司 | A kind of drill bit synchronous rotary pipeline scraper |
| CN110529074B (en) * | 2019-10-20 | 2024-06-11 | 上海达坦能源科技股份有限公司 | Drill bit synchronous rotation pipe scraper |
| CN114054274A (en) * | 2021-11-22 | 2022-02-18 | 上海兴生实业有限公司 | Robot for spraying waterproof layer on sewer pipe |
| CN114352270A (en) * | 2022-03-18 | 2022-04-15 | 四川圣诺油气工程技术服务有限公司 | Identification system for tubing operation coupling without killing well |
| CN114352270B (en) * | 2022-03-18 | 2022-05-10 | 四川圣诺油气工程技术服务有限公司 | Identification system for collar in snubbing pipe tripping operation |
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Open date: 20080130 |