CN202531052U - Forced gauge-protection drilling tool centralizer with cutting function - Google Patents
Forced gauge-protection drilling tool centralizer with cutting function Download PDFInfo
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- CN202531052U CN202531052U CN201220173938XU CN201220173938U CN202531052U CN 202531052 U CN202531052 U CN 202531052U CN 201220173938X U CN201220173938X U CN 201220173938XU CN 201220173938 U CN201220173938 U CN 201220173938U CN 202531052 U CN202531052 U CN 202531052U
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- drilling tool
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Abstract
The utility model relates to a forced gauge-protection drilling tool centralizer with a cutting function, which is used in petroleum engineering drilling and well servicing operations. Through the adoption of the forced gauge-protection drilling tool centralizer, drill-jamming accidents caused by factors, such as well hole diameter shrinkage, desilting, drilling string friction and the like, during directional drilling can be eliminated. A technical scheme is as follows: a centralizer main body comprises an upper joint, a lower joint, centralizing prisms and water tanks, wherein the five centralizing prisms and the five water tanks are uniformly formed on the surface of the centralizer main body; the centralizing prisms and the water tanks are spiral; T110 type hard alloy teeth in two rows and A122 type hard alloy blocks in one row are embedded on each centralizing prism; cutting edge mounting directions of the T110 type hard alloy teeth and the A122 type hard alloy blocks are a circumferential cutting direction of the centralizer; exposed tooth heights of the alloy teeth and the alloy blocks all fall within a negative tolerance range of 2.5 mm; and tubing threads are arranged in the interior of the upper joint and on the surface of the lower joint. The forced gauge-protection drilling tool centralizer with the cutting function, provided by the utility model, has functions of protecting gauge in a forced way, eliminating diameter shrinkage, trimming sidewalls, centralizing drilling tools, controlling well hole tracks and reaming holes.
Description
Technical field
The utility model relates to a kind of strong guarantor footpath drilling tool centralizer that is used for the band cutting function of petroleum works drilling well and workover treatment.
Background technology
The drilling tool centralizer is called drilling tool stabilizer again, is indispensable downhole tool commonly used in the oil drilling, is mainly used in development well, adjustment well, prospect pit, oblique straight well and directed cluster well.Centralizer is in when work, for realizing its function of setting upright, and just inevitable and borehole wall contact friction and collision, rock is the major reason that centralizer is set upright segment fault to its wearing and tearing with impacting, and is directly connected to the length in centralizer life-span.Present drilling tool centralizer can be divided into two kinds: a kind of is the centralizer of tungsten carbide button's piece, and a kind of is the centralizer of built-up welding surface wear-resistant layer, and two kinds of drilling tool centralizers all are the passive footpaths of setting upright and protect.The hard alloy blocks that the centralizer of tungsten carbide button's piece is inlayed is a platybasic type, and its external diameter is identical with the centralizer body external diameter.In by the process of impact wear, the hard alloy blocks of inlaying possibly fracture, come off; The centralizer section of the setting upright part of built-up welding surface wear-resistant layer is prone to embrittlement and peels off.
Summary of the invention
The purpose of the utility model is: in order to eliminate the lock of tool drilling that in the directed drilling process, is caused by factors such as hole shrinkage, desilting and drill string frictional resistances, and initiatively cut the borehole wall, force to protect the footpath, the spy provides a kind of strong guarantor with cutting function directly drilling tool centralizer.
In order to achieve the above object, the technical scheme of the utility model is: a kind of strong guarantor footpath drilling tool centralizer with the cutting function, form by centralizer body, T110 type hard-metal insert and A122 type hard alloy blocks.Its architectural feature is, centralizer body by top connection, lower contact, set upright the rib body and tank constitutes, evenly arrange five on the centralizer body surface and set upright rib body and five tanks, setting upright rib body and tank is spirality, the hand of spiral is dextrorotation, helical angle is 15 °; Set upright at every and to inlay two row's T110 type hard-metal inserts and row's A122 type hard alloy blocks on the rib body; The installation deflection angle theta of T110 type hard-metal insert is 5 °; Yawing moment is counterclockwise; The cutting edge installation direction of T110 type hard-metal insert and A122 type hard alloy blocks is a centralizer circumference cutting direction; The height of T110 type hard-metal insert and A122 type hard alloy blocks all is higher than the height of setting upright the rib body, and it is grinningly highly all in 2.5mm negative common difference scope; Be provided with tubing round thread in top connection inside and lower contact surface.Set upright the right that a row A122 type hard alloy blocks of inlaying on the rib body is positioned at two row T110 type hard-metal inserts for described every, two row T110 type hard-metal inserts adopt equidistantly staggered cloth tooth gauge rule.
The beneficial effect of the utility model is: (1) the utlity model has and force to protect the footpath, eliminates undergauge, repairs the borehole wall, sets upright drilling tool, the function of Controlling Borehole Trajectory and reaming hole; (2) this centralizer is inlayed hard-metal insert that has cutting edge and hard alloy blocks have this centralizer and initiatively cut function, have solved the problem of passive wearing and tearing of present centralizer and drilling tool bit freezing.
Description of drawings
Fig. 1 is the overall structure sketch map that the utility model is protected footpath drilling tool centralizer by force.
Among the figure: 1-centralizer body, 1a-top connection, 1b-set upright the rib body, 1c-tank, 1d-lower contact, 1e-tubing round thread, 2-T110 type hard-metal insert, 3-A122 type hard alloy blocks.
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: the installation deflection angle of θ-T110 type hard-metal insert.
The specific embodiment
According to Fig. 1, process the characteristic of centralizer body 1: top connection 1a, set upright rib body 1b, tank 1c, lower contact 1d and tubing round thread 1e.Bore the equally spaced hole of two rows on five surfaces of setting upright rib body 1b respectively; In the hole, inlay T110 type hard-metal insert 2; T110 type hard-metal insert 2 is along 5 ° of installations of the counterclockwise deflection of centralizer circumference; Its cutting edge installation direction is a centralizer circumference cutting direction, and T110 type hard-metal insert 2 is higher than and sets upright rib body 1b, and it highly is controlled in the 2.5mm negative common difference scope grinningly; A groove is opened on the right at two row T110 type hard-metal inserts 2; Inlay a row A122 type hard alloy blocks 3; Its cutting edge installation direction is a centralizer circumference cutting direction, and A122 type hard alloy blocks 3 is higher than and sets upright rib body 1b, and it highly is controlled in the 2.5mm negative common difference scope grinningly.
During use, centralizer is connected with lower drilling tool through lower contact 1d, and top connection 1a is connected with drill string, descends well construction then.
Claims (2)
1. one kind with strong guarantors of cutting function drilling tool centralizer directly; Form by centralizer body, T110 type hard-metal insert and A122 type hard alloy blocks; It is characterized in that: centralizer body (1) by top connection (1a), lower contact (1d), set upright rib body (1b) and tank (1c) and constitute; Evenly arrange five on centralizer body (1) surface and set upright rib body (1b) and five tanks (1c); Setting upright rib body (1b) is spirality with tank (1c), and the hand of spiral is dextrorotation, and helical angle is 15 °; Set upright at every and to inlay two row's T110 type hard-metal inserts (2) on the rib body (1b) and arrange A122 type hard alloy blocks (3) with one; The installation deflection angle theta of T110 type hard-metal insert (2) is 5 °; Yawing moment is counterclockwise; The cutting edge installation direction of T110 type hard-metal insert (2) and A122 type hard alloy blocks (3) is a centralizer circumference cutting direction; The height of T110 type hard-metal insert (2) and A122 type hard alloy blocks (3) all is higher than the height of setting upright rib body (1b), and it is grinningly highly all in 2.5mm negative common difference scope; Be provided with tubing round thread (1e) in top connection (1a) inside and lower contact (1d) surface.
2. the strong guarantor footpath drilling tool centralizer of band cutting function according to claim 1; It is characterized in that: set upright the right that row's A122 type hard alloy blocks (3) of inlaying on the rib body (1b) is positioned at two row's T110 type hard-metal inserts (2) at above-mentioned every, two row's T110 type hard-metal inserts (2) adopt equidistantly staggered cloth tooth gauge rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220173938XU CN202531052U (en) | 2012-04-24 | 2012-04-24 | Forced gauge-protection drilling tool centralizer with cutting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220173938XU CN202531052U (en) | 2012-04-24 | 2012-04-24 | Forced gauge-protection drilling tool centralizer with cutting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531052U true CN202531052U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220173938XU Expired - Fee Related CN202531052U (en) | 2012-04-24 | 2012-04-24 | Forced gauge-protection drilling tool centralizer with cutting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531052U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615201A (en) * | 2013-11-30 | 2014-03-05 | 重庆九州探矿机械技术开发公司 | Centering device for drill rod in hole of engineering driller |
| CN107304657A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubing string |
| CN108301774A (en) * | 2018-04-09 | 2018-07-20 | 成都百施特金刚石钻头有限公司 | The reamer of cutting tooth uniform fold |
-
2012
- 2012-04-24 CN CN201220173938XU patent/CN202531052U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615201A (en) * | 2013-11-30 | 2014-03-05 | 重庆九州探矿机械技术开发公司 | Centering device for drill rod in hole of engineering driller |
| CN103615201B (en) * | 2013-11-30 | 2015-12-02 | 重庆九州探矿机械技术开发公司 | The centralizer of drilling rod in engineering driller hole |
| CN107304657A (en) * | 2016-04-19 | 2017-10-31 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubing string |
| CN107304657B (en) * | 2016-04-19 | 2020-08-07 | 中国石油天然气股份有限公司 | Centralizer and simulation drifting tubular column |
| CN108301774A (en) * | 2018-04-09 | 2018-07-20 | 成都百施特金刚石钻头有限公司 | The reamer of cutting tooth uniform fold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140424 |