CN2793292Y - Multi-stage and composite drilling bit of drilling rig - Google Patents
Multi-stage and composite drilling bit of drilling rig Download PDFInfo
- Publication number
- CN2793292Y CN2793292Y CN 200520034287 CN200520034287U CN2793292Y CN 2793292 Y CN2793292 Y CN 2793292Y CN 200520034287 CN200520034287 CN 200520034287 CN 200520034287 U CN200520034287 U CN 200520034287U CN 2793292 Y CN2793292 Y CN 2793292Y
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- drill bit
- drilling
- bit
- main
- detachable
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Abstract
The utility model relates to a multi-stage composite drilling bit of a drilling rig. A positioning guide drill bit is arranged at the front end part of a drill rod of a drilling rig which is driven to rotate by a motor, and a main drill bit of which the drilling hole diameter is larger than the positioning guide drill bit is arranged behind the drill rod. The back part of the main drill bit is provided with a hole expanding detachable drill bit which can rotate and expand outwardly surrounding a hinge structure by a connecting structure and the hinge structure, and the maximal drilling hole diameter after the hole expanding detachable bit is rotated and expanded outwardly is larger than the drilling hole diameter of the main drill bit. The multi-stage composite drilling bit can facilitate positioning, guiding, main drilling and expanding drilling procedures to be complete once in the drilling operation, and the operation of synchronously lowering sleeve pipes along with the drilling course can be conveniently realized. The collapse of a well hole wall and adverse effect which is brought by the collapse are effectively reduced or avoided, the efficiency is remarkably improved, and the construction cost is lowered.
Description
Technical field
What the utility model originally related to is a kind of rig drill bit, is specially adapted to the rig drill bit in the geological drilling equipment.
Background technology
Traditional geological drilling operation generally need adopt drill bit that difference creeps into the aperture respectively through the first time drillng operation and expand well operations two secondary programs for the second time after, in the wellhole that is got out, transfer sleeve pipe again.The mode that this gradation is finished not only work efficiency is low, and is time-consuming, and when running into as complicated geological structures such as cobble, sand bed, cavity, water layers, the borehole wall that has bored fortuitous event and leading to the failure such as also may cave in, and construction cost is very high.
The utility model content
At above-mentioned situation, the utility model will provide a kind of geology that can make to creep into location in the operation, guiding, main bore and the counterboring program is disposable finishes, and can realize transferring synchronously the operation of sleeve pipe easily with the process of creeping into, reduce or avoid the adverse effect of caving in and bringing of borehole wall effectively, significantly improved work efficiency and reduced construction cost.
Multistage composite type rig drill bit of the present utility model, be to be provided with a positioning and guiding drill bit at leading section by the borer drill rod of driven by motor rotation, be provided with and creep into the main drill bit of aperture greater than this positioning and guiding drill bit thereafter, rear at main drill bit also is provided with the reaming detachable bit that can rotate abduction around hinge arrangement through syndeton with hinge arrangement, and the maximum after the reaming detachable bit rotation abduction is crept into the creep into aperture of aperture greater than said main drill bit.Because the end of creeping at drilling rod has set gradually and has crept into the ascending positioning and guiding drill bit in aperture, main drill bit and reaming detachable bit, therefore with the pushing ahead of drilling rod, location, guiding, main bore and the operation procedure of counterboring can disposable finishing.Simultaneously, because can be with the rotation of drilling rod around the hinge axis abduction through this reaming detachable bit that hinge arrangement is provided with, and its maximum of rotating after the abduction is crept into the creep into aperture of aperture greater than said main drill bit, therefore with drilling well, expand the carrying out of well operations, can also realize transferring synchronously the operation of borehole wall sleeve pipe, thereby further make and transfer sleeve pipe and also can disposablely finish, even running into as cobble, sand bed, the cavity, during complicated geological structures such as water layer, also can prevent and avoid the generation and the drilling well failure of cave-in effectively, reduce risk, improved work efficiency and drilling well success rate.
For further being convenient in drilling process, to make drilling equipment in the activity, adjustment or the advance and retreat that are drilled in the wellhole, the set-up mode of said this reaming detachable bit that is provided with through hinge arrangement in the multistage composite type rig drill bit in the above-mentioned structure is so that its outer when being in the interior receipts state of non-abduction creeps into the aperture for better through what be less than or equal to main drill bit.
In above-mentioned multistage composite type rig drill bit, said this reaming detachable bit the position is set, on the special-purpose syndeton that can be arranged on special setting, more simple and convenient is to adopt the form that is arranged on the place, mounting base peripheral part of main drill bit with symmetric mode, and should be provided with 2 at least, be traditionally arranged to be 3～4 and get final product.
Below, foregoing of the present utility model is described in further detail again by the specific embodiment by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.Do not breaking away under the above-mentioned technological thought situation of the utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the present utility model.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model multistage composite type rig drill bit.
Fig. 2 is that the A of Fig. 1 is to structural representation.
The specific embodiment
The utility model multistage composite type rig drill bit as depicted in figs. 1 and 2, be to be provided with a positioning and guiding drill bit 1 at leading section by the borer drill rod 6 of motor 9 driven rotary of mechanism's 7 strong fixs that are positioned, be provided with a main drill bit 2 that creeps into the aperture greater than this positioning and guiding drill bit 1 at drilling rod position thereafter through mounting base 3, and sentence symmetric mode in the peripheral part of its mounting base 3 and also be provided with four reaming detachable bits 4 through hinge 5.When creeping into operation, with the rotation that drilling rod 6 drives, this reaming detachable bit 4 is subjected to centrifugal action to connect hinge 5 around it and rotates abduction, and the maximum of rotating after the abduction is crept into the creep into aperture of aperture greater than said main drill bit 2; But outer when it is in the interior receipts state of non-abduction through then being set to be less than or equal to the mode that main drill bit 2 creeps into the aperture.
Claims (4)
1. multistage composite type rig drill bit, it is characterized in that being provided with a positioning and guiding drill bit (1) at borer drill rod (6) leading section by motor (9) driven rotary, be provided with and creep into the main drill bit (2) of aperture greater than this positioning and guiding drill bit (1) thereafter, rear at main drill bit (2) also is provided with the reaming detachable bit (4) that can rotate abduction around hinge arrangement (5) through syndeton with hinge arrangement (5), and the maximum after reaming detachable bit (4) the rotation abduction is crept into the creep into aperture of aperture greater than said main drill bit (2).
2. multistage composite type rig drill bit as claimed in claim 1 is characterized in that outer through being less than or equal to the aperture of creeping into of main drill bit (2) when the said reaming detachable bit (4) that is provided with through hinge arrangement (5) is in the interior receipts state of non-abduction.
3. multistage composite type rig drill bit as claimed in claim 1 is characterized in that said reaming detachable bit (4) at least two for mounting base (3) the peripheral part place that is arranged on main drill bit (2) with symmetric mode.
4. multistage composite type rig drill bit as claimed in claim 3 is characterized in that said reaming detachable bit (4) is provided with 3～4 at the peripheral region of main drill bit (2) mounting base (3) with symmetric mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034287 CN2793292Y (en) | 2005-05-26 | 2005-05-26 | Multi-stage and composite drilling bit of drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520034287 CN2793292Y (en) | 2005-05-26 | 2005-05-26 | Multi-stage and composite drilling bit of drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793292Y true CN2793292Y (en) | 2006-07-05 |
Family
ID=36820437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520034287 Expired - Fee Related CN2793292Y (en) | 2005-05-26 | 2005-05-26 | Multi-stage and composite drilling bit of drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2793292Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199994A (en) * | 2011-01-13 | 2011-09-28 | 河南理工大学 | Multi-level variable-diameter drilling tool |
| CN102966306A (en) * | 2012-12-03 | 2013-03-13 | 山东大学 | System and operation method for drilling hole on hard rock in one attempt |
| CN105178863A (en) * | 2015-09-16 | 2015-12-23 | 宋新祥 | Novel petroleum drill bit |
| CN112273126A (en) * | 2020-11-02 | 2021-01-29 | 宝鸡市林业科技信息中心(宝鸡市飞播造林工作站) | Slope punching planting and greening method |
-
2005
- 2005-05-26 CN CN 200520034287 patent/CN2793292Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199994A (en) * | 2011-01-13 | 2011-09-28 | 河南理工大学 | Multi-level variable-diameter drilling tool |
| CN102966306A (en) * | 2012-12-03 | 2013-03-13 | 山东大学 | System and operation method for drilling hole on hard rock in one attempt |
| CN102966306B (en) * | 2012-12-03 | 2015-06-10 | 山东大学 | System and operation method for drilling hole on hard rock in one attempt |
| CN105178863A (en) * | 2015-09-16 | 2015-12-23 | 宋新祥 | Novel petroleum drill bit |
| CN105178863B (en) * | 2015-09-16 | 2018-03-27 | 胜利油田盛辉石油技术开发有限责任公司 | A kind of nonpetroleum drill bit |
| CN112273126A (en) * | 2020-11-02 | 2021-01-29 | 宝鸡市林业科技信息中心(宝鸡市飞播造林工作站) | Slope punching planting and greening method |
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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: 20060705 Termination date: 20130526 |