CN207847534U - A kind of hole-drawing device for underground reaming - Google Patents
A kind of hole-drawing device for underground reaming Download PDFInfo
- Publication number
- CN207847534U CN207847534U CN201820224522.3U CN201820224522U CN207847534U CN 207847534 U CN207847534 U CN 207847534U CN 201820224522 U CN201820224522 U CN 201820224522U CN 207847534 U CN207847534 U CN 207847534U
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- hole
- drawing device
- wing
- reaming
- device ontology
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Abstract
The utility model discloses a kind of hole-drawing devices for underground reaming, including cylindrical hole-drawing device ontology, the one or both ends of the hole-drawing device ontology are respectively equipped with connector, the stage casing outer wall of the hole-drawing device ontology is equipped with multiple wings being uniformly circumferentially distributed, multiple cutting tooths are equipped at the top side of the wing or two side profiles, the top gauge section of the wing is equipped with the wear-resisting lug of multiple gauges, and the position beside the wing is located on the hole-drawing device ontology equipped with the nozzle for spraying drilling fluid.Hole-drawing device described in the utility model can modify wellbore in drilling process or in two-way when back reaming operation, wall quality can be kept to the maximum extent, the resistance that drill string makes a trip is reduced, prevents bit freezing or slacking off, while also ensureing smoothly to carry out casing operation；It is exclusively used in underground reaming using this hole-drawing device, the problem of influencing structure of downhole assembly and drilling tool capacity of orientation using drill bit reaming is avoided, extends the service life of drill bit.
Description
Technical field
The utility model is related to a kind of reaming tool of drillng operation more particularly to a kind of reamings for underground reaming
Device.
Background technology
In the natural petroleum gas field drilling process, wellbore is exposed can be because of strata pressure, drilling fluid in drilling fluid
The many factors such as effect cause hole shrinkage, meanwhile, it is not the cylindric of specification that the wellbore formed is crept by drill bit also,
It therefore can be to making a trip and setting of casing adversely affects.
All carrying out back reaming in usual drillng operation when making a trip or being short using drill bit improves hole quality, but long
The reaming of section may damage at other positions drill bit, be unfavorable for drill bit and continue to creep into.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of hole-drawing device for underground reaming.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of hole-drawing device for underground reaming, including cylindrical hole-drawing device ontology, one end of the hole-drawing device ontology
Or both ends are respectively equipped with connector, the stage casing outer wall of the hole-drawing device ontology is equipped with multiple wings being uniformly circumferentially distributed, described
Multiple cutting tooths are equipped at the top side of wing or two side profiles, the top gauge section of the wing is wear-resisting equipped with multiple gauges
Lug is located at the position beside the wing on the hole-drawing device ontology and is equipped with nozzle for spraying drilling fluid.Above-mentioned gauge
Section is major diameter section.
For the ease of being connect with a plurality of types of drill bits, the connector includes pin end and female connector, the pin end and
The female connector is respectively arranged on the both ends of the hole-drawing device ontology.
Preferably, the wing is three, have between the wing and the central axis of the hole-drawing device ontology less
In 5 ° of angle.This structure maximizes channel of chip removal while ensureing enough cutter set densities and wing intensity, prevents from boring
Go out to be formed mud drum or blocking in tool when being returned in well liquid, and greatly reduces while ensureing enough cutting effects
Tool length avoids influence of the tool to drill assembly, the especially influence in orientation or horizontal well operations.
Preferably, the wear-resisting lug of gauge is in PDC composite sheets, hard metal tip, impregnated or heat-stabilised poly chip
One kind or arbitrary combination, make this hole-drawing device that there is high service life and borehole size fraction.
Preferably, the hole-drawing device ontology, the wing and the connector are integrally formed, the cutting tooth and the guarantor
The wear-resisting lug of diameter is mounted on by welding manner on the wing.Not only easy to process in this way but also can guarantee intensity.
Preferably, the top gauge section surface of the wing is cylindrical surface and its major diameter ranging from 4.75 " -26 ", it is multiple
The cutting tooth is covered at the top side or two side profiles of the wing.
Specifically, the hole-drawing device ontology is equipped with nozzle bore, and the nozzle is by being threadably mounted in the nozzle bore.
The beneficial effects of the utility model are：
The utility model is made by the way that the wing of symmetrical structure is arranged and cutting tooth and the wear-resisting lug of gauge is arranged on wing
Hole-drawing device can modify wellbore in drilling process or in two-way when back reaming operation, can keep to the maximum extent
Wall quality reduces the resistance that drill string makes a trip, prevents bit freezing or slacking off, while also ensureing smoothly to carry out casing work
Industry；In addition, this hole-drawing device is compact-sized, intensity is higher, and length is shorter, is adapted to straight well, directional well and horizontal well
Reaming operation, tool have very big chip space, be conducive to drilling fluid on return, prevent mud drum；It is special using this hole-drawing device
In underground reaming, the problem of influencing structure of downhole assembly and drilling tool capacity of orientation using drill bit reaming is avoided, brill is extended
The service life of head.
Description of the drawings
Fig. 1 is the main structure diagram of the hole-drawing device described in the utility model for underground reaming；
Fig. 2 is the overlooking structure diagram of the hole-drawing device described in the utility model for underground reaming, and ratio is more than in figure
Fig. 1；
Fig. 3 is the cutting tooth distributed architecture enlarged diagram of the hole-drawing device described in the utility model for underground reaming；
Fig. 4 is the wing structure enlarged diagram of the hole-drawing device described in the utility model for underground reaming.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
As Figure 1-Figure 4, the hole-drawing device described in the utility model for underground reaming includes cylindrical hole-drawing device sheet
The both ends of body 3, hole-drawing device ontology 3 are respectively equipped with pin end 7 and female connector 1, set on the stage casing outer wall of hole-drawing device ontology 3 there are three
The wing 2 being uniformly circumferentially distributed, hole-drawing device ontology 3, wing 2, pin end 7 and female connector 1 are integrally formed, wing 2 and hole-drawing device
There is the angle no more than 5 ° between the central axis of ontology 3, multiple cutting tooths are equipped at the top side of wing 2 or two side profiles
4, the top gauge section a of wing 2 are equipped with the wear-resisting lug 6 of multiple gauges, the surface of the top gauge section a of wing 2 be cylindrical surface and
Its major diameter ranging from 4.75 " -26 ", multiple cutting tooths 4 are covered at the top side or two side profiles of wing 2, cutting tooth 4 and guarantor
The wear-resisting lug 6 of diameter is mounted on by welding manner on wing 2.The wear-resisting lug 6 of gauge is PDC composite sheets, hard metal tip, impregnated
Or one kind in heat-stabilised poly chip or arbitrary combination, the position that 2 side of wing is located on hole-drawing device ontology 3 are equipped with nozzle bore,
For spraying the nozzle 5 of drilling fluid by being threadably mounted in the nozzle bore.
As shown in Figure 1, in use, be sent into underground after the pin end 7 of this hole-drawing device or female connector 1 are connect with drilling rod, bore
Bar drives 3 high speed rotation of hole-drawing device ontology, the cutting tooth 4 on wing 2 to cut stratum, realizes reaming function, the gauge on wing 2
Wear-resisting lug 6 protects the top gauge section a of wing 2 to be worn less, extends the service life of entire hole-drawing device.
Above-described embodiment is the preferred embodiment of the utility model, is not the limit to technical solutions of the utility model
System, as long as without the technical solution that creative work can be realized on the basis of the above embodiments, is regarded as falling into
In the rights protection scope of the utility model patent.
Claims (7)
1. a kind of hole-drawing device for underground reaming, it is characterised in that：Including cylindrical hole-drawing device ontology, the hole-drawing device sheet
The one or both ends of body are respectively equipped with connector, and the stage casing outer wall of the hole-drawing device ontology is equipped with multiple knives being uniformly circumferentially distributed
Multiple cutting tooths are equipped at the wing, the top side of the wing or two side profiles, the top gauge section of the wing is equipped with multiple
Gauge wear-resisting lug is located at the position beside the wing on the hole-drawing device ontology and is equipped with nozzle for spraying drilling fluid.
2. the hole-drawing device according to claim 1 for underground reaming, it is characterised in that：The connector include pin end and
Female connector, the pin end and the female connector are respectively arranged on the both ends of the hole-drawing device ontology.
3. the hole-drawing device according to claim 1 for underground reaming, it is characterised in that：The wing is three, described
There is the angle no more than 5 ° between wing and the central axis of the hole-drawing device ontology.
4. the hole-drawing device according to claim 1,2 or 3 for underground reaming, it is characterised in that：The gauge abrasion resistant convex
Piece is PDC composite sheets, hard metal tip, impregnated or one kind in heat-stabilised poly chip or arbitrary combination.
5. the hole-drawing device according to claim 1,2 or 3 for underground reaming, it is characterised in that：The hole-drawing device ontology,
The wing and connector integrated molding, the cutting tooth and the wear-resisting lug of the gauge are mounted on described by welding manner
On wing.
6. the hole-drawing device according to claim 5 for underground reaming, it is characterised in that：The top gauge section of the wing
Surface is cylindrical surface and its major diameter ranging from 4.75 " -26 ", multiple cutting tooths are covered with the top side or two of the wing
At side profile.
7. the hole-drawing device according to claim 1,2 or 3 for underground reaming, it is characterised in that：The hole-drawing device ontology
It is equipped with nozzle bore, the nozzle is by being threadably mounted in the nozzle bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224522.3U CN207847534U (en) | 2018-02-08 | 2018-02-08 | A kind of hole-drawing device for underground reaming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224522.3U CN207847534U (en) | 2018-02-08 | 2018-02-08 | A kind of hole-drawing device for underground reaming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207847534U true CN207847534U (en) | 2018-09-11 |
Family
ID=63412293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820224522.3U Active CN207847534U (en) | 2018-02-08 | 2018-02-08 | A kind of hole-drawing device for underground reaming |
Country Status (1)
| Country | Link |
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| CN (1) | CN207847534U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403885A (en) * | 2018-12-05 | 2019-03-01 | 深圳越海工程技术有限公司 | A kind of Bidirectional screw type is with borehole wall reshaper |
| CN112627737A (en) * | 2020-11-30 | 2021-04-09 | 安东通奥科技产业股份有限公司 | Reaming tool |
| CN113492297A (en) * | 2021-07-01 | 2021-10-12 | 陈元 | Process for machining follow-up rotation cleaning scriber |
-
2018
- 2018-02-08 CN CN201820224522.3U patent/CN207847534U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403885A (en) * | 2018-12-05 | 2019-03-01 | 深圳越海工程技术有限公司 | A kind of Bidirectional screw type is with borehole wall reshaper |
| CN109403885B (en) * | 2018-12-05 | 2023-09-12 | 深圳越海工程技术有限公司 | Bidirectional spiral type while-drilling wall shaper |
| CN112627737A (en) * | 2020-11-30 | 2021-04-09 | 安东通奥科技产业股份有限公司 | Reaming tool |
| CN113492297A (en) * | 2021-07-01 | 2021-10-12 | 陈元 | Process for machining follow-up rotation cleaning scriber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Miaomiao Inventor after: Xiao Rui Inventor after: Tan Dabing Inventor before: Zhou Miaomiao Inventor before: Xiao Rui |
|
| CB03 | Change of inventor or designer information |