CN203114176U - Roller cone PDC combination tooth drill bit - Google Patents
Roller cone PDC combination tooth drill bit Download PDFInfo
- Publication number
- CN203114176U CN203114176U CN 201320086282 CN201320086282U CN203114176U CN 203114176 U CN203114176 U CN 203114176U CN 201320086282 CN201320086282 CN 201320086282 CN 201320086282 U CN201320086282 U CN 201320086282U CN 203114176 U CN203114176 U CN 203114176U
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- China
- Prior art keywords
- bit
- pdc
- drill bit
- roller
- roller cone
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a roller cone PDC combination tooth drill bit which comprises a connector and a roller cone connected with the connector. The roller cone is composed of palms on the lower portion and cutting teeth on the upper portion. The roller cone PDC combination tooth drill bit is characterized in that PDC cutter blades are arranged on the back portions of the palms, and main cutting teeth are arranged on the outer surfaces of the cutter blades. The roller cone PDC combination tooth drill bit integrates the cutting teeth of a roller bit and the main cutting teeth of a PDC bit, achieves the dynamic integration of the characteristics of the roller bit and the characteristics of the PDC bit, and has the advantages of the roller bit and the advantages of the PDC bit at the same time, the defects of any bit are avoided, the standard size range of the roller bit is expanded flexibly, the complex problem of oil field well drilling is solved, special emergency needs of oil field well drilling are met, and the roller cone PDC combination tooth drill bit can be effectively applied to comprehensive drilling of an oil and gas well.
Description
Technical field
The utility model relates to a kind of drill bit, relates in particular to a kind of gear wheel PDC combination tooth drill bit that has rock bit and PDC drill bit advantage concurrently.
Background technology
Comprehensive Drilling bore bit that present Chinese domestic petroleum gas drilling uses is mainly rock bit and PDC drill bit.Rock bit has impact, shear dual broken rock effect, the efficiency of breaking rock height, applied range, can wash certainly, be difficult for mud drum, but in directional well and horizontal well, the live load of cone outer row tooth is more much bigger than straight well, so gauge structure is one of key factor that influences in the deflecting operation bit speed and wellbore quality, though the shock loading of rock bit is conducive to fractured rock, but bit bearing is destroyed too early, make tooth particularly hard-metal insert collapse brokenly, cause the fatigue failure of drill string, the cycle that changes institute's production rock bit size simultaneously is long, very flexible can't satisfy the complicated and special emergent demand of oil drilling.The PDC drill bit with shear brokenly rock, have self-sharpening, wear-resisting, can soft in keep the broken rock advantage of high efficiency in the hard homogeneous formation, but the cutting teeth poor impact toughness of PDC, be not suitable in the frequent stratum of soft or hard conversion and hard formation, using, and mud drum may take place, make its application limited.
The utility model content
The purpose of this utility model provides a kind of gear wheel PDC combination tooth drill bit that has rock bit and PDC drill bit advantage concurrently with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Gear wheel PDC combination tooth drill bit described in the utility model comprises joint and the gear wheel that is connected with described joint, and described gear wheel is made of the bit leg of bottom and the cutting teeth on top, and the back of described bit leg is provided with the PDC wing, and the external surface of described wing is provided with the main cutting tooth.
Further, also be provided with gauge teeth and back reaming tooth on the external surface of described PDC wing.
Further, also be provided with the tooth that lies low, cylinder glomerocryst and anti-collision joint on the external surface of described PDC wing.
The combination of above-mentioned wing and bit leg and position, the quantity of main cutting tooth, gauge teeth, back reaming tooth, the tooth that lies low, cylinder glomerocryst and anti-collision joint, crown and cloth tooth all can be adjusted according to actual needs, make gear wheel PDC combination tooth drill bit described in the utility model have good gauge structure.
The beneficial effects of the utility model are:
Drill bit described in the utility model is integrated in one the cutting teeth of rock bit and the main cutting tooth of PDC drill bit, realized the combination of rock bit feature and PDC drill bit feature, have the advantage of rock bit and PDC drill bit concurrently, avoided the wherein defective of any drill bit, expanded simultaneously the standard size scope of rock bit more neatly, solve challenge and the special emergent demand of oil drilling, can effectively be applied to comprehensively creeping into of oil gas well.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of gear wheel PDC combination tooth drill bit described in the utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, gear wheel PDC combination tooth drill bit described in the utility model comprises joint 4 and the gear wheel that is connected with joint 4, described gear wheel is made of the bit leg 3 of bottom and the cutting teeth 1 on top, the back of bit leg 3 is provided with PDC wing 2, and the external surface of wing 2 is provided with main cutting tooth 5, gauge teeth 10, back reaming tooth 9, the tooth 7 that lies low, cylinder glomerocryst 8 and anti-collision joint 6.
Wherein, combination and the position of wing 2 and bit leg 3, the quantity of main cutting tooth 5, gauge teeth 10, back reaming tooth 9, the tooth 7 that lies low, cylinder glomerocryst 8 and anti-collision joint 6, crown and cloth tooth all can be adjusted according to actual needs, make gear wheel PDC combination tooth drill bit described in the utility model have good gauge structure.
Drill bit described in the utility model is integrated in one the cutting teeth 1 of rock bit and the main cutting tooth 5 of PDC drill bit, realized the combination of rock bit feature and PDC drill bit feature, have the advantage of rock bit and PDC drill bit concurrently, avoided the wherein defective of any drill bit, expanded simultaneously the standard size scope of rock bit more neatly, solve challenge and the special emergent demand of oil drilling, can effectively be applied to comprehensively creeping into of oil gas well.
Above-described embodiment is preferred embodiment of the present utility model, and the utility model person of an ordinary skill in the technical field should be appreciated that the concrete structure shown in above-described embodiment is only for illustrative, and not restrictive.And; the utility model person of an ordinary skill in the technical field can make up to constitute new technical scheme according to various possible modes to the various technical characterictics shown in the above; perhaps carry out other change, but all should fall within the protection domain of the present utility model.
Claims (3)
1. gear wheel PDC combination tooth drill bit, comprise joint and the gear wheel that is connected with described joint, described gear wheel is made of the bit leg of bottom and the cutting teeth on top, it is characterized in that: the back of described bit leg is provided with the PDC wing, and the external surface of described wing is provided with the main cutting tooth.
2. gear wheel PDC combination tooth drill bit according to claim 1 is characterized in that: also be provided with gauge teeth and back reaming tooth on the external surface of described PDC wing.
3. gear wheel PDC combination tooth drill bit according to claim 1 and 2 is characterized in that: also be provided with the tooth that lies low, cylinder glomerocryst and anti-collision joint on the external surface of described PDC wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086282 CN203114176U (en) | 2013-02-26 | 2013-02-26 | Roller cone PDC combination tooth drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086282 CN203114176U (en) | 2013-02-26 | 2013-02-26 | Roller cone PDC combination tooth drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114176U true CN203114176U (en) | 2013-08-07 |
Family
ID=48894536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320086282 Expired - Lifetime CN203114176U (en) | 2013-02-26 | 2013-02-26 | Roller cone PDC combination tooth drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114176U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939022A (en) * | 2014-04-10 | 2014-07-23 | 河北驰恒钻头制造有限公司 | Combined drill bit combining PDC drill bit and roller bit for joint rock breaking |
| CN105874147A (en) * | 2013-12-05 | 2016-08-17 | 国民油井Dht有限公司 | Drilling systems and hybrid drill bits for drilling in a subterranean formation and methods relating thereto |
| CN113323592A (en) * | 2021-08-04 | 2021-08-31 | 四川川庆石油钻采科技有限公司 | PDC drill bit capable of realizing casing drilling and design method thereof |
-
2013
- 2013-02-26 CN CN 201320086282 patent/CN203114176U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105874147A (en) * | 2013-12-05 | 2016-08-17 | 国民油井Dht有限公司 | Drilling systems and hybrid drill bits for drilling in a subterranean formation and methods relating thereto |
| CN103939022A (en) * | 2014-04-10 | 2014-07-23 | 河北驰恒钻头制造有限公司 | Combined drill bit combining PDC drill bit and roller bit for joint rock breaking |
| CN103939022B (en) * | 2014-04-10 | 2015-12-16 | 河北驰恒钻头制造有限公司 | The combined drill of a kind of PDC drill bit and rock bit combined-breaking rock |
| CN113323592A (en) * | 2021-08-04 | 2021-08-31 | 四川川庆石油钻采科技有限公司 | PDC drill bit capable of realizing casing drilling and design method thereof |
| CN113323592B (en) * | 2021-08-04 | 2021-10-08 | 四川川庆石油钻采科技有限公司 | PDC drill bit capable of realizing casing drilling and design method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |