CN200955361Y - Frictior-reducing resistance-reducing drilling-well tool - Google Patents
Frictior-reducing resistance-reducing drilling-well tool Download PDFInfo
- Publication number
- CN200955361Y CN200955361Y CN 200620157027 CN200620157027U CN200955361Y CN 200955361 Y CN200955361 Y CN 200955361Y CN 200620157027 CN200620157027 CN 200620157027 CN 200620157027 U CN200620157027 U CN 200620157027U CN 200955361 Y CN200955361 Y CN 200955361Y
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- China
- Prior art keywords
- sleeve
- sliding sleeve
- lower clamp
- hold
- processed
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- Expired - Fee Related
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Abstract
The utility model relates to an anti friction drag reduction drill well instrument which comprises an upper clamp, a lower clamp, an inner slide bushing, an outer slide bushing, a friction bearing sleeve, a pin shaft and a lower clamp. Wherein, the inner slide bushing and the friction bearing sleeve adopts the clearance fit, the inner slide bushing, the upper clamp and the lower clamp all have a cylinder shape that is made of two petals. The one side of both the upper clamp and the lower clamp has a hinge structure, and the other side is processed and arranged with a through groove with a certain width. The two petals are connected with bolts, and the intracavity of the petals is processed and arranged with a pawl. Both the outer slide bushing and the friction bearing sleeve have a cylinder shape that is made of two petals. The two pedals of the outer slide sleeve are connected with the pin shaft. A plurality of trapezoid through grooves are processed and arranged around the outer slide sleeve. The friction bearing sleeve is placed inside the through groove of the outer slide sleeve. The outer slide sleeve and the friction bearing sleeve are fixedly connected together. Resulting from that the combination between the inner slide sleeve and the outer slide sleeve can cause a relative slide when the drilling instrument is rotating; the torque of the drilling instrument is reduced. The friction bearing sheet is made of low-friction materials, and can reduce the friction resistance between the drilling instrument and the sleeve. The insulating layer formed among the outer slide sleeve and the inner slide sleeve and the friction bearing sheet can effectively prevent the sleeve from being worn and damaged.
Description
Technical field
The utility model relates to being installed in a kind of oil drilling and is used to reduce drilling tool frictional resistance, moment of torsion on the drilling rod, can prevent the drilling tool of casing wear simultaneously, belongs to oil downhole tool class.
Background technology
When directional well, high angle hole, small curvature radius horizontal well and extended reach well drilling well, the contact load between drilling tool and the sleeve pipe is bigger, causes easily and creeps into moment of torsion, frictional resistance increases and the excessive wear of sleeve pipe.Moment of torsion, frictional resistance are crossed conference and are caused the rig load to be difficult to finish the predetermined target of creeping into, and the excessive wear meeting of sleeve pipe causes expensive workover cost, even causes well to scrap.
Summary of the invention
The purpose of this utility model is to provide a kind of being installed in to be used to reduce drilling tool frictional resistance, moment of torsion on the drilling rod, prevents that simultaneously the resistance drilling tool from falling in the antifriction of casing wear.
The utility model mainly by last anchor clamps 1, inner sliding sleeve 2, outer sliding sleeve 3, hold mill cover 4, hold abrasive disc 5, bearing pin 6, lower clamp 7 form, inner sliding sleeve 2 and hold between the mill cover 4 and adopt matched in clearance, inner sliding sleeve 2 is the cylindric of two smaller part gardens compositions, last anchor clamps 1, lower clamp 7 also are the cylindric of two lobes composition, one side is a hinge structure, opposite side is processed with the groove of certain width, by bolt two lobes is connected, and last anchor clamps 1, lower clamp 7 inner chambers all are processed with one section pawl; Link together by screw between inner sliding sleeve 2 and last anchor clamps 1, the lower clamp 7; Outer sliding sleeve 3, hold mill cover 4 and be cylindric that two lobes form, 3 liang of lobes of outer sliding sleeve link together by bearing pin 6, outer sliding sleeve 3 circumference are processed with several trapezoidal grooves, hold abrasive disc 5 card and be placed in the trapezoidal groove of outer sliding sleeve 3, outer sliding sleeve 3 with hold mill cover 4 and be fixed together.
Upper and lower anchor clamps of the present utility model are fixed on the inner sliding sleeve combination on the drilling rod, and the outer sliding sleeve combination can produce relative slip with the inner sliding sleeve combination during drilling tool rotation, thereby reduces the drilling tool moment of torsion; Hold abrasive disc 5 and be low-friction material, can reduce the friction factor between drilling tool and the sleeve pipe.Outer sliding sleeve 3 and hold mill cover 4 and hold the separation layer that abrasive disc 5 forms between drilling tools and the sleeve pipe can effectively prevent casing wear.
Description of drawings
Fig. 1 the utility model structural representation
Specific embodiments
The utility model is described in more detail below in conjunction with accompanying drawing.
The utility model mainly by last anchor clamps 1, inner sliding sleeve 2, outer sliding sleeve 3, hold mill cover 4, hold abrasive disc 5, bearing pin 6, lower clamp 7 form, inner sliding sleeve 2 and hold between the mill cover 4 and adopt matched in clearance, inner sliding sleeve 2 is the cylindric of two smaller part gardens compositions, last anchor clamps 1, lower clamp 7 also are the cylindric of two lobes composition, one side is a hinge structure, opposite side is processed with the groove of certain width, by bolt two lobes is connected, and last anchor clamps 1, lower clamp 7 inner chambers all are processed with one section pawl; Link together by screw between inner sliding sleeve 2 and last anchor clamps 1, the lower clamp 7; Outer sliding sleeve 3, hold mill cover 4 and be cylindric that two lobes form, 3 liang of lobes of outer sliding sleeve link together by bearing pin 6, outer sliding sleeve 3 circumference are processed with several trapezoidal grooves, hold abrasive disc 5 card and be placed in the trapezoidal groove of outer sliding sleeve 3, outer sliding sleeve 3 with hold mill cover 4 and be fixed together.
The inner sliding sleeve combination is placed in the design attitude of drilling rod, with spanner bolt is linked closely to setting torque value, the combination of two semicircle tubular outer sliding sleeves is buckled on the inner sliding sleeve 2, bearing pin 6 is inserted in the pin-and-hole of outer sliding sleeves combination and link closely to setting torque value, instrument installs.The outer sliding sleeve combination is combined as matched in clearance with inner sliding sleeve, and the outer sliding sleeve combination produces relative slip when being combined in the drilling tool rotation with inner sliding sleeve, reduces the drilling tool moment of torsion; Outer sliding sleeve 3 and hold mill cover 4 and hold abrasive disc 5 and form separation layer between drilling tools and the sleeve pipe prevents casing wear; Hold abrasive disc 5 and be low-friction material, can reduce the friction factor between drilling tool and the sleeve pipe, help reducing frictional resistance.
Claims (1)
1. the resistance drilling tool falls in an antifriction, mainly by last anchor clamps (1), inner sliding sleeve (2), outer sliding sleeve (3), hold mill cover (4), hold abrasive disc (5), bearing pin (6), lower clamp (7) is formed, it is characterized in that: inner sliding sleeve (2) and hold between the mill cover (4) and adopt matched in clearance, inner sliding sleeve (2) is the cylindric of two smaller part gardens compositions, last anchor clamps (1), lower clamp (7) also is the cylindric of two lobes composition, one side is a hinge structure, opposite side is processed with the groove of certain width, two lobes are connected last anchor clamps (1) by bolt, lower clamp (7) inner chamber all is processed with one section pawl; Inner sliding sleeve (2) and last anchor clamps (1), lower clamp link together by screw between (7); Outer sliding sleeve (3), hold mill cover (4) and be cylindric that two lobes form, outer sliding sleeve (3) two lobes link together by bearing pin (6), outer sliding sleeve (3) circumference is processed with several trapezoidal grooves, hold abrasive disc (5) card and be placed in the trapezoidal groove of outer sliding sleeve (3), outer sliding sleeve (3) with hold mill cover (4) and be fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620157027 CN200955361Y (en) | 2006-10-14 | 2006-10-14 | Frictior-reducing resistance-reducing drilling-well tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620157027 CN200955361Y (en) | 2006-10-14 | 2006-10-14 | Frictior-reducing resistance-reducing drilling-well tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200955361Y true CN200955361Y (en) | 2007-10-03 |
Family
ID=38773945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620157027 Expired - Fee Related CN200955361Y (en) | 2006-10-14 | 2006-10-14 | Frictior-reducing resistance-reducing drilling-well tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200955361Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080507A (en) * | 2010-12-27 | 2011-06-01 | 中国石油化工集团公司 | Anti-abrasion device for drill pipe and casing pipe |
| CN107401377A (en) * | 2017-09-11 | 2017-11-28 | 长江大学 | A kind of deep drilling anti-friction damping device |
| CN112761546A (en) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | Drag-reducing and wear-resisting drill string protector |
-
2006
- 2006-10-14 CN CN 200620157027 patent/CN200955361Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080507A (en) * | 2010-12-27 | 2011-06-01 | 中国石油化工集团公司 | Anti-abrasion device for drill pipe and casing pipe |
| CN107401377A (en) * | 2017-09-11 | 2017-11-28 | 长江大学 | A kind of deep drilling anti-friction damping device |
| CN112761546A (en) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | Drag-reducing and wear-resisting drill string protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
| ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071003 Termination date: 20141014 |
|
| EXPY | Termination of patent right or utility model |