CN205370452U - Bore sharp tooth structure PDC drill bit - Google Patents
Bore sharp tooth structure PDC drill bit Download PDFInfo
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- CN205370452U CN205370452U CN201620069958.0U CN201620069958U CN205370452U CN 205370452 U CN205370452 U CN 205370452U CN 201620069958 U CN201620069958 U CN 201620069958U CN 205370452 U CN205370452 U CN 205370452U
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- pointed tooth
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Abstract
The utility model discloses a bore sharp tooth structure PDC drill bit belongs to the drill bit and makes technical field. It includes joint, base member, nozzle, cutting structure, wing and guarantor footpath piece, and the main cutting teeth among the cutting structure is arranged by sharp tooth of awl and conventional PDC complex piece and constitute that the initiative guarantor footpath position of the every wing of drill bit arranges at least that the compound piece of a conventional PDC is as the guarantor footpath tooth of taking the initiative. The utility model discloses an improve drill bit cutting structure anti grinding ability, shock resistance and aggressive can, improved the life and the mechanical drilling speed of drill bit, shortened well construction period, reduced well drilling comprehensive cost.
Description
Technical field
This utility model relates to a kind of drill bit, especially natural petroleum gas field drilling well drill bit, belongs to drill bit manufacturing technology field.
Background technology
At present, PDC (composite polycrystal-diamond) drill bit is the important tool of natural petroleum gas field drilling well, and its serviceability directly affects the development cost of petroleum gas.PDC drill bit keeps long service life and high rate of penetration that make a trip number of times in drilling process will be greatly decreased, and shortens well construction period, reduces drilling well integrated cost.And the serviceability of PDC drill bit is determined by its cutting structure, the cutting structure of PDC drill bit be drill bit for breaking rock " cutting edge ", it is generally made up of a series of conventional PDC composite sheet being embedded on drill bit wing according to certain layout rules.Under duty, cutting structure directly contact layer also crushes bottom rock under the dual function of the pressure of the drill and moment of torsion, guides well to extend to depths, stratum, and the quality of cutting structure performance determines the result of use of drill bit.
In passing development course, people mainly start with from aspects such as the raw materials of the interface structure of PDC composite sheet, the processing technique of PDC composite sheet and diamond layer and constantly promote the shock resistance of PDC composite sheet, abrasive resistant performance, thermal stability, and the thus boosting popularization and application of PDC drill bit.However as PDC composite sheet production technology and PDC drill bit design theory become better and approaching perfection day by day, by conventional PDC composite sheet and consisting of improving of cutting structure promote the cycle that drill bit updates more and more longer.Therefore, the appearance being promoted new drill by innovation seems more and more urgent with the drilling technology mating constantly lifting.
Utility model content
For the problems referred to above, this utility model provides one cone pointed tooth structure PDC drill bit.
This utility model solves its technical problem and be the technical scheme is that cone pointed tooth structure PDC drill bit, including joint, matrix, nozzle, cutting structure, wing and gauge block, main cutting tooth in cutting structure is constituted with conventional PDC composite sheet layout by boring pointed tooth, and the active gage position of the every wing of drill bit at least arranges that a conventional PDC composite sheet is as active gage tooth.
The beneficial effects of the utility model are, the conical cone pointed tooth of the cutting edge that adopted is compared conventional PDC composite sheet and is had thicker diamond layer thickness and less tooth top radius of curvature, and this version makes to bore the abrasive resistant performance of pointed tooth and shock resistance has had and significantly promotes.Meanwhile, when identical the pressure of the drill, cone pointed tooth is more prone to pierce stratum than conventional PDC composite sheet.The advantage in performance that cone pointed tooth has makes the bit cutting structure being made up of it not only be not susceptible to abnormal damage in high cutting force condition, can make full use of this high cutting force on the contrary and quickly pierce stratum.By improving the abrasive resistant performance of bit cutting structure, shock resistance and attack performance, and then service life and the rate of penetration of drill bit are greatly improved, shorten well construction period, reduce drilling well integrated cost.
Accompanying drawing explanation
Fig. 1 is this utility model population structure schematic diagram；
Fig. 2 is drill bit inner cone position main cutting tooth is the cloth tooth schematic diagram boring pointed tooth；；
Fig. 3 is drill bit nose main cutting tooth is the cloth tooth schematic diagram boring pointed tooth；
Fig. 4 is the outer shoulder main cutting tooth of drill bit is the cloth tooth schematic diagram of cone pointed tooth；
Fig. 5 is drill bit primary cutting structures is all the cloth tooth schematic diagram of cone pointed tooth；
Fig. 6 is drill bit main cutting tooth is spaced apart cone pointed tooth and conventional PDC composite sheet, and the cloth tooth schematic diagram that the two tooth top is contour；
Fig. 7 is drill bit main cutting tooth is spaced apart cone pointed tooth and conventional PDC composite sheet, and the cloth tooth schematic diagram that the two tooth top is not contour.
Parts and numbering in figure:
1 joint, 2 matrixes, 3 nozzles, 4 cutting structures, 5 wings, 6 gauge blocks,
7 cone pointed tooths, 8 conventional PDC composite sheet.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is further illustrated.
Referring to Fig. 1, cone pointed tooth structure PDC drill bit, including joint 1, matrix 2, nozzle 3, cutting structure 4, wing 5 and gauge block 6, main cutting tooth in cutting structure 4 is constituted with conventional PDC composite sheet 8 layout by boring pointed tooth 7, and the active gage position of the every wing of drill bit 5 at least arranges that a conventional PDC composite sheet 8 is as active gage tooth.To ensure hole quality.
Cone pointed tooth 7 is arranged in the interior tapering of wing 5, and conventional PDC composite sheet 8 is arranged in the nose of wing (5) and outer shoulder.Such as Fig. 2.
Cone pointed tooth 7 is arranged in the nose of wing 5, and conventional PDC composite sheet 8 is arranged in the interior tapering of wing 5 and outer shoulder.Such as Fig. 3.
Cone pointed tooth 7 is arranged in the outer shoulder of wing 5, and conventional PDC composite sheet 8 is arranged in interior tapering and the nose of wing 5.Such as Fig. 4.
Cone pointed tooth 7 is arranged in the interior tapering of wing 5, nose and outer shoulder.Such as Fig. 5.
Cone pointed tooth 7 and conventional PDC composite sheet 8 are alternately arranged in the interior tapering of wing 5, nose and outer shoulder, and the tooth top of cone pointed tooth 7 is contour with conventional PDC composite sheet 8 tooth top.Such as Fig. 6.
Cone pointed tooth 7 and conventional PDC composite sheet 8 are alternately arranged in the interior tapering of wing 5, nose and outer shoulder, and the tooth top of cone pointed tooth 7 is higher than the tooth top of conventional PDC composite sheet 8.Such as Fig. 7.
Six kinds of above-mentioned cone pointed tooth arrangements are in order to mate different drill bit application conditions.Should according to preferably different cutting structure configuration modes such as different formation conditions, BHA, drilling parameters so that the combination properties such as the service life of drill bit, rate of penetration, guidance capability reach optimum.
Claims (7)
1. a cone pointed tooth structure PDC drill bit, including joint (1), matrix (2), nozzle (3), cutting structure (4), wing (5) and gauge block (6), it is characterized in that, main cutting tooth in cutting structure (4) is by boring pointed tooth (7) and conventional PDC composite sheet (8) is arranged and constituted, and the active gage position of each wing of drill bit (5) at least arranges that a conventional PDC composite sheet (8) is as active gage tooth.
2. cone pointed tooth structure PDC drill bit according to claim 1, it is characterized in that, described cone pointed tooth (7) is arranged in the interior tapering of wing (5), and conventional PDC composite sheet (8) is arranged in the nose of wing (5) and outer shoulder.
3. cone pointed tooth structure PDC drill bit according to claim 1, it is characterized in that, described cone pointed tooth (7) is arranged in the nose of wing (5), and conventional PDC composite sheet (8) is arranged in the interior tapering of wing (5) and outer shoulder.
4. cone pointed tooth structure PDC drill bit according to claim 1, it is characterized in that, described cone pointed tooth (7) is arranged in the outer shoulder of wing (5), and conventional PDC composite sheet (8) is arranged in interior tapering and the nose of wing (5).
5. cone pointed tooth structure PDC drill bit according to claim 1, it is characterised in that described cone pointed tooth (7) is arranged in the interior tapering of wing (5), nose and outer shoulder.
6. cone pointed tooth structure PDC drill bit according to claim 1, it is characterized in that, described cone pointed tooth (7) and conventional PDC composite sheet (8) are alternately arranged in the interior tapering of wing (5), nose and outer shoulder, and the tooth top of cone pointed tooth (7) is contour with the tooth top of conventional PDC composite sheet (8).
7. cone pointed tooth structure PDC drill bit according to claim 1, it is characterized in that, described cone pointed tooth (7) and conventional PDC composite sheet (8) are alternately arranged in the interior tapering of wing (5), nose and outer shoulder, and the tooth top of cone pointed tooth (7) is higher than the tooth top of conventional PDC composite sheet (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069958.0U CN205370452U (en) | 2016-01-25 | 2016-01-25 | Bore sharp tooth structure PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069958.0U CN205370452U (en) | 2016-01-25 | 2016-01-25 | Bore sharp tooth structure PDC drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205370452U true CN205370452U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620069958.0U Active CN205370452U (en) | 2016-01-25 | 2016-01-25 | Bore sharp tooth structure PDC drill bit |
Country Status (1)
| Country | Link |
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| CN (1) | CN205370452U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859489A (en) * | 2017-12-13 | 2018-03-30 | 中石化江钻石油机械有限公司 | A kind of two-stage cutting type PDC drilling bit |
| CN108952582A (en) * | 2018-08-28 | 2018-12-07 | 新疆贝肯能源工程股份有限公司 | PDC drill bit suitable for double pendulum speed-raising drilling tool |
| CN110607992A (en) * | 2019-10-18 | 2019-12-24 | 山东源运通矿山装备科技有限公司 | Five-wing seven-tooth drill bit |
| CN111287666A (en) * | 2020-02-11 | 2020-06-16 | 中国石油大学(华东) | Efficient rock breaking drill bit capable of adaptively controlling lateral cutting capacity |
-
2016
- 2016-01-25 CN CN201620069958.0U patent/CN205370452U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859489A (en) * | 2017-12-13 | 2018-03-30 | 中石化江钻石油机械有限公司 | A kind of two-stage cutting type PDC drilling bit |
| CN108952582A (en) * | 2018-08-28 | 2018-12-07 | 新疆贝肯能源工程股份有限公司 | PDC drill bit suitable for double pendulum speed-raising drilling tool |
| CN110607992A (en) * | 2019-10-18 | 2019-12-24 | 山东源运通矿山装备科技有限公司 | Five-wing seven-tooth drill bit |
| CN111287666A (en) * | 2020-02-11 | 2020-06-16 | 中国石油大学(华东) | Efficient rock breaking drill bit capable of adaptively controlling lateral cutting capacity |
| CN111287666B (en) * | 2020-02-11 | 2021-08-06 | 中国石油大学(华东) | Efficient rock breaking drill bit capable of adaptively controlling lateral cutting capacity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wei Hongshu Inventor after: Zhang Weiguo Inventor after: Liu Zhipeng Inventor after: Ai Fei Inventor after: Zhou Miaomiao Inventor before: Wei Hongshu Inventor before: Zhang Weiguo Inventor before: Liu Zhipeng Inventor before: Ai Fei Inventor before: Zhou Miaomiao |
|
| COR | Change of bibliographic data |