CN201738879U - Descaling cutter for inner wall of oil well pipe - Google Patents

Descaling cutter for inner wall of oil well pipe Download PDF

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Publication number
CN201738879U
CN201738879U CN2009202775610U CN200920277561U CN201738879U CN 201738879 U CN201738879 U CN 201738879U CN 2009202775610 U CN2009202775610 U CN 2009202775610U CN 200920277561 U CN200920277561 U CN 200920277561U CN 201738879 U CN201738879 U CN 201738879U
Authority
CN
China
Prior art keywords
cutting edge
cutter hub
cutter
oil well
cutter body
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 - Lifetime
Application number
CN2009202775610U
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Chinese (zh)
Inventor
张虎林
梁祖德
赵建华
胡全勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anton Oilfield Services Group Ltd
Original Assignee
Anton Oilfield Services Group Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anton Oilfield Services Group Ltd filed Critical Anton Oilfield Services Group Ltd
Priority to CN2009202775610U priority Critical patent/CN201738879U/en
Application granted granted Critical
Publication of CN201738879U publication Critical patent/CN201738879U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a descaling cutter for the inner wall of an oil well pipe, which comprises a cutter body, wherein the rear end of the cutter body is fixedly connected with a cutter bar, the front end of the cutter body is provided with a guide cutting edge, an elastic cutting edge is arranged outside the middle of the cutter body, the tail part of the cutter body is provided with a spiral righting cutting edge, the cutter body is internally provided with a washing water channel, the bottom end of the elastic cutting edge is provided with a boss, the boss is provided with a pressing block which fixes the elastic cutting edge on the cutter body by screws, the bottom of the elastic cutting edge is provided with a groove internally provided with a spring; one end of the spring is connected with the groove, the other end thereof is communicated with the washing water channel; and a chip groove is also arranged outside the cutter body and provided with a spout hole. The descaling cutter can remove the alkali dirt on the inner wall of the oil well pipe completely and effectively, leads the alkali dirt ring not to attach to the inner wall of the oil well pipe after alkali dirt removal, and is not easy to stick the cutter in the removing process.

Description

Oil well inside pipe wall scale removal cutter
Technical field
The utility model relates to a kind of scale removal cutter, particularly a kind of oil well inside pipe wall scale removal cutter.
Background technology
In oil and gas industry, the oil pipe use of going into the well is influenced by underground environment, and tube inner wall is attached with the alkali dirt to some extent, and these alkali dirts influence the effective drift diameter of oil pipe.Need during well workover that the oil pipe that trips out ground is carried out the alkali dirt and remove, recover the standard latus rectum of oil pipe, this is one of requisite operation in the oil pipe reparing process.
Existing pipe material inner wall scale removal cutter generally is a rigid blade, and the blade tactical diameter is fixed, and diameter is less than normal, when removing the alkali dirt, always leaves one deck alkali dirt ring and can not remove.Though can improve cleaning effect through repeatedly removing, can not reach the degree of thorough removing alkali dirt ring.And the alkali dirt of cutter head under in use being eliminated easily is stuck.
The utility model content
The utility model provides a kind of features high scale-removing effect in order to solve the deficiencies in the prior art, the oil well inside pipe wall scale removal cutter that the alkali dirt after the removing can the swaging clamp head.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of oil well inside pipe wall scale removal cutter, comprise cutter hub, the fixedly connected knife bar in described cutter hub rear end, described cutter hub front end is provided with the guide cuts sword, the middle part of described cutter hub is provided with the elasticity cutting edge, described cutter hub afterbody is provided with spiral and sets upright cutting edge, described cutter hub inside is provided with the cleaning water channel, described elasticity cutting edge bottom is provided with boss, described boss is provided with briquetting, described briquetting is fixed on the elasticity cutting edge on the cutter hub by screw, and described elasticity cutting edge bottom is provided with groove, is provided with spring in the described groove, described spring one end connects groove, the other end communicates with cleaning water channel, and described cutter hub outside also is provided with chip area, and described chip area is provided with hole for water spraying.
Described elasticity cutting edge is symmetricly set on the both sides at cutter hub middle part.
Described knife bar can rotate, and can the front and back rectilinear motion.
Described knife bar rear end is fixedly connected on the knife bar by screw thread.
Compared with prior art, the utility model cutter hub front end guidance cutting edge in process is advanced in rotation can be removed the most of obstinate alkali dirt of tube inner wall; The elasticity cutter head is close to tube inner wall under the two-way function of spring, the carbide alloy on the elasticity cutter head can be removed the however, residual base dirt ring of tube inner wall, and spiral is set upright cutting edge and set upright cutter hub and also can remove the alkali dirt.Alkali dirt bits under the cutting flow out from chip area under the flushing of water under high pressure, reach the effect of cleaning.Adopt structure of the present utility model, can removing tube inner wall alkali dirt in full force and effect, there is not alkali dirt ring in the tube inner wall of removing behind the alkali dirt.The utility model also can be used for the inwall dirt removal of other tubing series products.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of elasticity cutting edge in the utility model;
Fig. 3 is the lateral view of Fig. 2;
Fig. 4 is the structural representation of briquetting in the utility model;
Fig. 5 is the lateral view of Fig. 4.
Among the figure: 1. cutter hub, 2. knife bar, 3. guide cuts sword, 4. elasticity cutting edge, the 4.1. boss, the 4.2. groove, 5. spiral is set upright cutting edge, 6. cleans water channel, 7. briquetting, 7.1. aperture, 8. screw, 9. spring, 10. chip area, 11 hole for water sprayings.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of oil well pipe inwall scale removal cutter, comprise cutter hub 1, cutter hub 1 rear end is fixedly connected on the knife bar 2 by screw thread, knife bar 2 can rotate, and can before and after rectilinear motion, cutter hub 1 front end point of a knife place is provided with guide cuts sword 3, cutter hub 1 outside, the bilateral symmetry at middle part is provided with elasticity cutting edge 4, cutter hub 1 afterbody is provided with spiral and sets upright cutting edge 5, cutter hub 1 inside is provided with cleans water channel 6, and referring to Fig. 2 and Fig. 3, elasticity cutting edge 4 bottoms are provided with boss 4.1, boss 4.1 is provided with briquetting 7, briquetting 7 is fixed on elasticity cutting edge 4 on the cutter hub 1 by screw 8, and referring to Fig. 4 and Fig. 5, the centre of briquetting 7 is provided with aperture 7.1, screw 8 passes aperture 7.1 fixedlys connected with cutter hub 1, elasticity cutting edge 4 bottoms are provided with groove 4.2, are provided with spring 9 in the groove 4.2, and spring 9 one ends connect groove 4.2, the other end communicates with cleaning water channel 6, cutter hub 1 outside also is provided with chip area 10, and chip area 10 is provided with hole for water spraying 11, and hole for water spraying 11 communicates with cleaning water channel 6.
During use, pipe material inner wall scale removal cutter is used by being threaded onto on the pipe material inner wall scale removal cleaning machine knife bar, rotation and reciprocating motion just can reach the cleaning purpose.
Cutter hub of the present utility model lower end is connected on the knife bar that has the front and back rectilinear motion and rotatablely move repeatedly by screw thread, the guide cuts sword of cutter hub front end can correctly guide cutter to enter in the body, cutter hub is in process is advanced in rotation, and the guide cuts sword can be removed the most of obstinate alkali dirt of tube inner wall; The elasticity cutting edge at cutter hub middle part is close to tube inner wall under the two-way function of spring, the carbide alloy on the elasticity cutting edge can be removed the however, residual base dirt ring of tube inner wall, and the spiral of cutter hub afterbody is set upright cutting edge also can remove the alkali dirt when setting upright cutter hub.The chip area at cutter hub middle part holds the alkali dirt that cuts, and assurance alkali dirt is considered not swaging clamp head to be worth doing, makes the blade cutting effect better; Have the hole of spraying water with high pressure on the chip area, the flushing tube wall also cleans cutter head, and the alkali dirt is drained by chip area under the flushing of water under high pressure, reaches the effect of cleaning in the body.
Above-described embodiment, the utility model specific embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.

Claims (5)

1. oil well inside pipe wall scale removal cutter, comprise cutter hub, it is characterized in that, the fixedly connected knife bar in described cutter hub rear end, described cutter hub front end is provided with the guide cuts sword, the middle part of described cutter hub is provided with the elasticity cutting edge, described cutter hub afterbody is provided with spiral and sets upright cutting edge, described cutter hub inside is provided with the cleaning water channel, described elasticity cutting edge bottom is provided with boss, and described boss is provided with briquetting, and described briquetting is fixed on the elasticity cutting edge on the cutter hub by screw, described elasticity cutting edge bottom is provided with groove, be provided with spring in the described groove, described spring one end connects groove, and the other end communicates with the cleaning water channel, described cutter hub outside also is provided with chip area, and described chip area is provided with hole for water spraying.
2. oil well inside pipe wall scale removal cutter according to claim 1 is characterized in that, described elasticity cutting edge is symmetricly set on the both sides at cutter hub middle part.
3. oil well inside pipe wall scale removal cutter according to claim 1 and 2 is characterized in that described knife bar can rotate, and can the front and back rectilinear motion.
4. oil well inside pipe wall scale removal cutter according to claim 1 and 2 is characterized in that described cutter hub rear end is fixedly connected on the knife bar by screw thread.
5. oil well inside pipe wall scale removal cutter according to claim 3 is characterized in that described cutter hub rear end is fixedly connected on the knife bar by screw thread.
CN2009202775610U 2009-12-18 2009-12-18 Descaling cutter for inner wall of oil well pipe Expired - Lifetime CN201738879U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202775610U CN201738879U (en) 2009-12-18 2009-12-18 Descaling cutter for inner wall of oil well pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202775610U CN201738879U (en) 2009-12-18 2009-12-18 Descaling cutter for inner wall of oil well pipe

Publications (1)

Publication Number Publication Date
CN201738879U true CN201738879U (en) 2011-02-09

Family

ID=43554157

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202775610U Expired - Lifetime CN201738879U (en) 2009-12-18 2009-12-18 Descaling cutter for inner wall of oil well pipe

Country Status (1)

Country Link
CN (1) CN201738879U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Zhang Hulin

Inventor after: Liang Zude

Inventor after: Zhao Jianhua

Inventor after: Hu Quanyong

Inventor after: Zhang Puwang

Inventor before: Zhang Hulin

Inventor before: Liang Zude

Inventor before: Zhao Jianhua

Inventor before: Hu Quanyong

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: ZHANG HULIN LIANG ZUDE ZHAO JIANHUA HU QUANYONG TO: ZHANG HULIN LIANG ZUDE ZHAO JIANHUA HU QUANYONG ZHANG PUWANG

C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Zhang Hulin

Inventor after: Liang Zude

Inventor after: Zhao Jianhua

Inventor after: Hu Quanyong

Inventor after: Zhang Puwang

Inventor after: Yan Bo

Inventor before: Zhang Hulin

Inventor before: Liang Zude

Inventor before: Zhao Jianhua

Inventor before: Hu Quanyong

Inventor before: Zhang Puwang

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: ZHANG HULIN LIANG ZUDE ZHAO JIANHUA HU QUANYONG ZHANG PUWANG TO: ZHANG HULIN LIANG ZUDE ZHAO JIANHUA HU QUANYONG ZHANG PUWANG YAN BO

EE01 Entry into force of recordation of patent licensing contract

Assignee: Andong Tong-Ao Technology Industry Co., Ltd.

Assignor: Anton Oilfield Services (Group) Ltd.

Contract record no.: 2013990000891

Denomination of utility model: Descaling cutter for inner wall of oil well pipe

Granted publication date: 20110209

License type: Exclusive License

Record date: 20131230

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Andong Tong-Ao Technology Industry Co., Ltd.

Assignor: Anton Oilfield Services (Group) Ltd.

Contract record no.: 2013990000891

Denomination of utility model: Descaling cutter for inner wall of oil well pipe

Granted publication date: 20110209

License type: Exclusive License

Record date: 20131230

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
CX01 Expiry of patent term

Granted publication date: 20110209

CX01 Expiry of patent term