CN201460740U - PDC drill bit with gauge slice - Google Patents
PDC drill bit with gauge slice Download PDFInfo
- Publication number
- CN201460740U CN201460740U CN2009200757783U CN200920075778U CN201460740U CN 201460740 U CN201460740 U CN 201460740U CN 2009200757783 U CN2009200757783 U CN 2009200757783U CN 200920075778 U CN200920075778 U CN 200920075778U CN 201460740 U CN201460740 U CN 201460740U
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- drill bit
- footpath
- utility
- model
- gauge
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Abstract
The utility model relates to a PDC drill bit with a gauge slice, which comprises a drill bit body; the upper part of the drill bit body is provided with a gauge and a cutter wing; the cutter wing is arranged above the gauge; each cutter wing is provided with a PDC cutting tooth; the gauge is provided with TSP polycrystalline; the drill bit body is provided with a spray nozzle; and one side of the cutting surface of the gauge is provided with the slice. The utility model has the advantages of being easily centralizing, preventing the drill bit from drilling and skidding, improving the drilling speed, ensuring that the caliper is not reduced, improving the wear resistance and prolonging the service life of the drill bit.
Description
Technical field
The utility model relates to a kind of oil and gas well drilling drill bit, particularly a kind of PDC drill bit with the section of guarantor footpath.
Background technology
The PDC drill bit is the abbreviation of polycrystalline diamond cut drill (Polycrystalline Diamond CompaCt Bit).The advantage that rate of penetration is fast because the PDC drill bit has, the life-span is long, drilling depth is many is so be widely used in oil and gas well drilling.
Generally not section of existing conventional PDC bit gauge protection place at present has only on the fixed guarantor of the part TSP glomerocryst footpath.Worker's drill bit is difficult for setting upright when do not work in uniform thickness alternating layers block stratum, and frequent the adjustment prolongs drilling time greatly; The bit gauge protection stock-removing efficiency is not high, forms the tapering cutting, and creeping into skids influences drilling speed; Protecting the place, footpath, to have only short grained TSP glomerocryst to contact with the borehole wall insufficient, do not have the effect of consolidating the borehole wall, causes hole diameter to dwindle, the drilling tool difficulty of going into the well, electrical measurement phenomenon such as be hampered; Not section protection, it is easy to wear to protect the footpath, can not guarantee the technical requirements of bit diameter, causes bit life short.
The utility model content
Technical problem to be solved in the utility model is, the defective that overcomes prior art provides a kind of easily to be set upright, avoid drill bit to creep into to skid, improved drilling speed, guarantee that hole diameter does not dwindle, improves abrasion resistance, and the PDC drill bit of cutting into slices in the footpath is protected in having of long service life.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of PDC drill bit with the section of guarantor footpath, comprise bit body, the top of described bit body is provided with protects footpath and wing, wing is positioned at the top of protecting the footpath, each described wing is provided with the PDC cutting teeth, and described guarantor directly is provided with the TSP glomerocryst, also is provided with nozzle on the described bit body, it is characterized in that described cutting face one side of protecting the footpath is provided with section.
Further, in the utility model, described cutting face one side of protecting the footpath is provided with 1-4 section.
The TSP glomerocryst is arranged on the bit body, and section cooperates cutting with the TSP glomerocryst, has improved the abrasion resistance of PDC drill bit greatly, has prolonged the application life of this PDC drill bit.
The beneficial effects of the utility model are:
1. the utility model is in drilling operation course, the wing of PDC drill bit creeps into cutting operation, be provided with section owing to protect the footpath, make to protect directly to go up to form a bigger cutting contact surface, guarantee the stability of drill bit, avoiding drill bit to creep into skids, improved drilling speed, guaranteed that hole diameter does not dwindle, consolidated the borehole wall and prevent to collapse in the well, improve abrasion resistance, prolonged the physical life of drill bit.
The utility model in drilling operation course with borehole wall full contact, reduce the bit body oscillation crosswise, stock-removing efficiency height, good stability.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a kind of bit body 4, PDC cutting teeth 1, wing 2 and nozzle 3 with the section of guarantor footpath, protect the top that footpath 5 and wing 2 are positioned at bit body 4, be provided with PDC cutting teeth 1 on each wing 2 (having 5 wings in the present embodiment), protect the below that footpath 5 is positioned at wing 2, protect the TSP glomerocryst 7 that footpath 5 is provided with column.In order further to increase the contact surface of protecting footpath and the borehole wall, improve the stability of drill bit when creeping into, be provided with 1-4 section 6 in cutting face one side of protecting footpath 5.In the present embodiment, number of slices is 3.Section 6 cooperates cutting with TSP glomerocryst 7, and the stock-removing efficiency height has ensured the hole diameter size, prevents from that hole diameter from dwindling to cause the bad accident conditions generation of going into the well of drilling tool; Improved the abrasion resistance of PDC drill bit greatly, and this section can protect the footpath, make it not easy to wear, prolonged the application life of this PDC drill bit.
The utility model is in drilling operation course, the wing of PDC drill bit creeps into cutting operation, be provided with section owing to protect the footpath, make to protect directly to go up to form a bigger cutting contact surface, guarantee the stability of drill bit, avoiding drill bit to creep into skids, improved drilling speed, guaranteed that hole diameter does not dwindle, consolidated the borehole wall and prevent to collapse in the well, improve abrasion resistance, prolonged the physical life of drill bit.
The maximum difference of directed PDC drill bit of the utility model and conventional bit: conventional bit is protected the footpath may produce higher friction power with the borehole wall in drilling process, causes the drilling tool moment of torsion to increase, and consumed power also causes drill bit rotation fluctuation.The PDC drill bit that the utility model provides is taked the directly superpower glomerocryst guarantor of section cooperation TSP footpath of a plurality of guarantors, and the bit gauge protection of process high-speed grinding effectively reduces surface roughness (0.004---0.008), improves the contact condition of the drill bit and the borehole wall.
The utility model PDC drill bit susceptibility that the pressure of the drill changes when slip is crept into is little, and the tool-face controllability is good, improves drilling well and setting of casing efficient and wellbore quality greatly, is kind of a more satisfactory drill bit.
The utility model is applicable to the use of various blocks stratum.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in the foregoing description and the manual is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (2)
1. one kind has the PDC drill bit of protecting the footpath section, comprise bit body, the top of described bit body is provided with protects footpath and wing, wing is positioned at the top of protecting the footpath, each described wing is provided with the PDC cutting teeth, and described guarantor directly is provided with the TSP glomerocryst, also is provided with nozzle on the described bit body, it is characterized in that described cutting face one side of protecting the footpath is provided with section.
2. the PDC drill bit with the section of guarantor footpath according to claim 1 is characterized in that: described cutting face one side of protecting the footpath is provided with 1-4 section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200757783U CN201460740U (en) | 2009-08-04 | 2009-08-04 | PDC drill bit with gauge slice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200757783U CN201460740U (en) | 2009-08-04 | 2009-08-04 | PDC drill bit with gauge slice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201460740U true CN201460740U (en) | 2010-05-12 |
Family
ID=42388094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200757783U Expired - Lifetime CN201460740U (en) | 2009-08-04 | 2009-08-04 | PDC drill bit with gauge slice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201460740U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128008A (en) * | 2011-03-24 | 2011-07-20 | 中南大学 | Polycrystalline diamond-hard alloy composite rock breaking button down-the-hole bit and manufacturing process thereof |
| CN104989281A (en) * | 2015-07-17 | 2015-10-21 | 盘锦裕达钻采工具制造有限公司 | Gauge protection repairable steel PDC drill bit and gauge protection repairing method of steel PDC drill bit |
| 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 |
-
2009
- 2009-08-04 CN CN2009200757783U patent/CN201460740U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128008A (en) * | 2011-03-24 | 2011-07-20 | 中南大学 | Polycrystalline diamond-hard alloy composite rock breaking button down-the-hole bit and manufacturing process thereof |
| CN104989281A (en) * | 2015-07-17 | 2015-10-21 | 盘锦裕达钻采工具制造有限公司 | Gauge protection repairable steel PDC drill bit and gauge protection repairing method of steel PDC drill bit |
| 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 | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ZHONGMAN DIAMOND BIT CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110819 Address after: 201204, No. 4, 58 Central Road, North Cai Town, Shanghai, Pudong New Area Co-patentee after: Shanghai Zhongman Diamond Bit Co., Ltd. Patentee after: Shanghai Zhongmeng Petroleum Natural Gas Co., Ltd. Address before: 201204, No. 4, 58 Central Road, North Cai Town, Shanghai, Pudong New Area Patentee before: Shanghai Zhongmeng Petroleum Natural Gas Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201204, No. 4, 58 Central Road, North Cai Town, Shanghai, Pudong New Area Patentee after: Shanghai Zhongmeng Petroleum Natural Gas Co., Ltd. Patentee after: Shanghai Rongzhi Diamond Bit Co., Ltd. Address before: 201204, No. 4, 58 Central Road, North Cai Town, Shanghai, Pudong New Area Patentee before: Shanghai Zhongmeng Petroleum Natural Gas Co., Ltd. Patentee before: Shanghai Zhongman Diamond Bit Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |