CN203925302U - A kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well - Google Patents
A kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well Download PDFInfo
- Publication number
- CN203925302U CN203925302U CN201420014456.9U CN201420014456U CN203925302U CN 203925302 U CN203925302 U CN 203925302U CN 201420014456 U CN201420014456 U CN 201420014456U CN 203925302 U CN203925302 U CN 203925302U
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- Prior art keywords
- wing
- drill body
- operator
- face
- pdc
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- Expired - Fee Related
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- 238000005553 drilling Methods 0.000 title claims abstract description 21
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well, it comprises drill body (1), the operator wing (2), secondary wing (3) and PDC composite sheet (4), the described operator wing (2) has three, secondary wing (3) has four, the operator wing (2) and secondary wing (3) are arranged on the external surface of drill body (1), the operator wing (2) starts from the center of drill body (1) end face, and terminate in the side of drill body (1), secondary wing (3) starts from the marginal position of drill body (1) end face, and terminate in the side of drill body (1), the described operator wing (2) and the homonymy of secondary wing (3) are laid with multiple PDC composite sheet (4), the end face of drill body (1) is also provided with exchangeable nozzle (5) and fixed nozzle (6).The utility model has the advantage of: improve drilling efficiency; PDC composite sheet good cooling results; Be applicable to extremely hard formation drilling well.
Description
Technical field
The utility model relates to a kind of oilfield drilling operation field downhole tool drill bit, particularly a kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well.
Background technology
PDC drill bit comprises bit adapter, drill bit, the operator wing and secondary wing, on the operator wing and secondary wing, be installed on drill bit, bit adapter is connected with drill bit, PDC is the special drill for oil well that substitutes old-fashioned rotary drill of current oil gas field, it has the features such as high-wearing feature, high impact-resistant, anti-oblique, anti-mud drum, high drilling speed, and PDC drill bit is described as " three height " product of high-tech, high investment, high production.When PDC drill bit in use, because PDC has high rotating speed, low the pressure of the drill, the contour performance advantage of high drilling depth, the application of PDC drill bit in oilfield drilling process, can reduce the cost of winning in oil field greatly, accelerate exploitation rate, improve the economic benefit of oilfield exploitation.
In current address exploration, exploitation, in oil drilling, although adopt in a large number PDC drill bit, but in heavy duty service, often can run into the mudstone stratum that plasticity is very strong, because its viscoplasticity is very strong, drilling cuttings very easily stick on drill bit cause " mud drum " and cause blocked portion, for example Tarim, Xinjiang Tahe main body block Carboniferous System mudstone stratum, buried depth is all more than 5000m, well section segment length 500m left and right, under three axle confined pressures, mud stone has higher plasticity and intensity, existing PDC drill bit is difficult to wedging stratum, and PDC composite sheet cooling effect is poor, easy hot scaling loss PDC composite sheet, cause this well section machine speed on the low side, drill bit usage quantity is many, frequent trips, restricting whole drilling period.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well that improve drilling efficiency and PDC composite sheet good cooling results are provided.
The purpose of this utility model is achieved through the following technical solutions: a kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well, it comprises drill body, the operator wing, secondary wing and PDC composite sheet, the described operator wing has three, secondary wing has four, the operator wing and secondary wing are arranged on the external surface of drill body, the operator wing starts from the center of drill body end face, and terminate in the side of drill body, secondary wing starts from the marginal position of drill body end face, and terminate in the side of drill body, the described operator wing and the homonymy of secondary wing are laid with multiple PDC composite sheet, the end face of drill body is also provided with exchangeable nozzle and fixed nozzle.
The described operator wing and secondary wing interval are arranged, and the operator wing is laid on the end face and side of drill body in the shape of a spiral.
Described exchangeable nozzle has three, and exchangeable nozzle is arranged at the intersection of the operator wing.
Described fixed nozzle has four, and fixed nozzle is arranged on the end face of drill body, and fixed nozzle is between the operator wing and secondary wing.
The utlity model has following advantage:
1, the operator wing is laid in the shape of a spiral, and its rotating speed is up to 260rpm, and discharge capacity can reach 50L/s, is not prone to " mud drum " phenomenon, and the wedging ability of PDC drill bit in stratum is strong, and drilling efficiency is high.
2, three exchangeable nozzles and four fixed nozzles are set on the end face of drill body, the cooling and cutting carring for PDC composite sheet, the good cooling results of PDC composite sheet, its hot scaling loss frequency reduces, and has shortened drilling period, saves maintenance cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1-drill body, the 2-wing of operating, the secondary wing of 3-, 4-PDC composite sheet, 5-exchangeable nozzle, 6-fixed nozzle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well, it comprises drill body 1, the operator wing 2, secondary wing 3 and PDC composite sheet 4, the described operator wing 2 has three, secondary wing 3 has four, the operator wing 2 and secondary wing 3 are arranged on the external surface of drill body 1, the operator wing 2 starts from the center of drill body 1 end face, and terminate in the side of drill body 1, secondary wing 3 starts from the marginal position of drill body 1 end face, and terminate in the side of drill body 1, the described operator wing 2 and the homonymy of secondary wing 3 are laid with multiple PDC composite sheet 4, the end face of drill body 1 is also provided with exchangeable nozzle 5 and fixed nozzle 6.
Further, the described operator wing 2 and secondary wing 3 intervals are arranged, and the operator wing 2 is laid on the end face and side of drill body 1 in the shape of a spiral.
Further, described exchangeable nozzle 5 has three, and exchangeable nozzle 5 is arranged at the intersection of the operator wing 2; Described fixed nozzle 6 has four, fixed nozzle 6 is arranged on the end face of drill body 1, and fixed nozzle 6 is between the operator wing 2 and secondary wing 3, cooling and the cutting carring for PDC composite sheet 4, the good cooling results of PDC composite sheet 4, its hot scaling loss frequency reduces, and has shortened drilling period, saves maintenance cost.
Claims (1)
1. one kind is applicable to seven wing PDC drill bits of extremely hard formation drilling well, it is characterized in that: it comprises drill body (1), the operator wing (2), secondary wing (3) and PDC composite sheet (4), the described operator wing (2) has three, secondary wing (3) has four, the operator wing (2) and secondary wing (3) are arranged on the external surface of drill body (1), the described operator wing (2) and secondary wing (3) interval are arranged, and the operator wing (2) is laid on the end face and side of drill body (1) in the shape of a spiral, the operator wing (2) starts from the center of drill body (1) end face, and terminate in the side of drill body (1), secondary wing (3) starts from the marginal position of drill body (1) end face, and terminate in the side of drill body (1), the described operator wing (2) and the homonymy of secondary wing (3) are laid with multiple PDC composite sheet (4), the end face of drill body (1) is also provided with exchangeable nozzle (5) and fixed nozzle (6), described exchangeable nozzle (5) has three, exchangeable nozzle (5) is arranged at the intersection of the operator wing (2), described fixed nozzle (6) has four, fixed nozzle (6) is arranged on the end face of drill body (1), and fixed nozzle (6) is positioned between the operator wing (2) and secondary wing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014456.9U CN203925302U (en) | 2014-01-10 | 2014-01-10 | A kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014456.9U CN203925302U (en) | 2014-01-10 | 2014-01-10 | A kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925302U true CN203925302U (en) | 2014-11-05 |
Family
ID=51821131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420014456.9U Expired - Fee Related CN203925302U (en) | 2014-01-10 | 2014-01-10 | A kind of seven wing PDC drill bits that are applicable to extremely hard formation drilling well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116427855A (en) * | 2023-02-01 | 2023-07-14 | 西南石油大学 | PDC drill bit capable of preventing annular cutting |
-
2014
- 2014-01-10 CN CN201420014456.9U patent/CN203925302U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116427855A (en) * | 2023-02-01 | 2023-07-14 | 西南石油大学 | PDC drill bit capable of preventing annular cutting |
| CN116427855B (en) * | 2023-02-01 | 2023-08-29 | 西南石油大学 | A kind of ring-cutting-proof PDC drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170110 |