CN103835657A - High-efficiency PDC drill bit - Google Patents
High-efficiency PDC drill bit Download PDFInfo
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- CN103835657A CN103835657A CN201410069882.7A CN201410069882A CN103835657A CN 103835657 A CN103835657 A CN 103835657A CN 201410069882 A CN201410069882 A CN 201410069882A CN 103835657 A CN103835657 A CN 103835657A
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- wing
- drill bit
- pdc drill
- landwaste
- efficiency
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Abstract
The invention discloses a high-efficiency PDC drill bit which comprises a drill bit body, six blades evenly distributed on the drill bit body, a nozzle at the upper end of the drill bit body, and a connection element at the lower end of the drill bit body. The blades comprise the upper blades and the lower blades at the lower ends of the upper blades, the upper blades are provided with two rows of cutting teeth, each row includes four cutting teeth, and the upper blades and the lower blades are not parallel. The high-efficiency PDC drill bit has the advantages that rock debris accumulation is not prone to being caused and drilling efficiency is high.
Description
Technical field
The present invention relates to oil and drill through target drill field, particularly, relate to the fast bidentate PDC drill bit of a kind of rate of penetration.
Background technology
Existing PDC drill bit is creeping into soil layer, when drill bit is in the time creeping at a high speed, and because the landwaste that cutting teeth produces is more, the accumulation that easily produces landwaste.Because the raceway groove between wing parallels with the axis of bit body, bit body is in the process of creeping into rotation, and landwaste can be deposited in raceway groove, makes landwaste be difficult for discharging, and landwaste only can, along with being on the increase of landwaste, be extruded raceway groove.And existing PDC drill bit, it adopts the operator wing and secondary wing respectively cutting teeth to be arranged, and this structure makes a lot of wings need to be set, and the gap between wing is restricted, and the discharge of landwaste is restricted.Because the discharge of landwaste is not smooth, the resistance that drill bit is subject in the time creeping into is increased, affect the speed that drill bit creeps into, and landwaste and drill bit constantly rub, the wing to drill bit and the behavior in service of cutting teeth can cause and have a strong impact on.
Summary of the invention
Technical problem to be solved by this invention is to provide the PDC drill bit that a kind of drilling efficiency is high.
The present invention addresses the above problem adopted technical scheme:
The PDC drill bit that a kind of efficiency is high, comprise bit body, be evenly arranged on 6 wings, the nozzle of bit body upper end and the connector of bit body lower end on bit body, described wing comprises wing and is positioned at the lower wing of wing lower end, on described upper wing, be provided with two row's cutting teeths, every row's cutting teeth all has 4 cutting teeths, and described upper wing and lower wing are not parallel.
As preferably, the angle between described lower wing and upper wing is greater than 5 degree and is less than 35 degree.
Further, the angle between described lower wing and upper wing is 20 degree.
As preferably, the height differences of two row's cutting teeths on described upper wing.
Further, the thickness of described upper wing and lower wing thickness different and lower wing is greater than the thickness of upper wing.
Further, large 1 centimetre of the thickness of wing on the Thickness Ratio of described lower wing.
To sum up, the invention has the beneficial effects as follows:
1, the present invention arranges two row's cutting teeths on upper wing, has reduced the quantity of wing, has increased the width in gap between wing, increases the width of landwaste passing away, increases the speed that landwaste is discharged.
2, upper wing of the present invention and lower wing are not parallel, make gap between lower wing twist, and cut landwaste is subject to centrifugal action and discharges along gap, avoids lower wing sidewall to play inhibition to landwaste, accelerate the speed that landwaste is discharged.
3, on 6 wings of the present invention, 8 cutting teeths are all set, make the speed of cutting teeth cutting landwaste consistent with the landwaste velocity of discharge, avoid the accumulation of landwaste to damage cutting teeth.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark and corresponding component title in accompanying drawing: 1, bit body; 2, lower wing; 3, upper wing; 4, cutting teeth; 5, nozzle; 6, connector.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
The high PDC drill bit of a kind of efficiency as shown in Figure 1, comprise bit body, be evenly arranged on 6 wings, the nozzle of bit body upper end and the connector of bit body lower end on bit body, described wing comprises wing and is positioned at the lower wing of wing lower end, on described upper wing, be provided with two row's cutting teeths, every row's cutting teeth all has 4 cutting teeths, and described upper wing and lower wing are not parallel.
In the present embodiment, upper wing and lower wing are set to not parallel structure, make gap between lower wing with respect to bit body twist, just to do the running orbit of centrifugal motion consistent with landwaste for this shape, and the landwaste that makes to be got off by smear metal can not be subject to the inhibition of lower wing crag while discharge.Double cutting teeth is set on wing, increases the gap between wing, the width of landwaste passing away increases, and is of value to the speed that landwaste is discharged, and strengthens smear metal speed.Through experimental results demonstrate, 6 wings are set on bit body, and two row's cutting teeths are set on each wing, in the time that the quantity of every row's cutting teeth is 4, arranging rationally of cutting teeth, and the speed that the speed of the smear metal landwaste of cutting teeth and landwaste are discharged is consistent, the impact of the accumulation that can avoid landwaste on smear metal speed and cutting teeth behavior in service.When the quantity of every row's cutting teeth increases, the speed of landwaste smear metal increases, and landwaste is easily piled up, and talus deposit not only has certain inhibition to the speed of cutting teeth, and can damage cutting teeth, affects the application life of cutting teeth.Experimental results demonstrate, in the time that the quantity of every row's cutting teeth is 4, its not only smear metal efficiency is high, is also difficult for causing the accumulation of landwaste.
Embodiment 2:
The present embodiment has done refinement on the basis of embodiment 1, descends the angle between wing and upper wing to be greater than 5 degree and to be less than 35 degree.Experiment showed, that the angle between wing and upper wing is in the time that 5 degree to 35 are spent instantly, inhibition that its lower wing sidewall is discharged landwaste is little.When the angle number of degrees are less than 5 degree or are greater than 35 while spending, in the time of other term harmonizations, the speed that landwaste is discharged is not significantly improved.
Embodiment 3:
The present embodiment is preferred one group of data in embodiment 2, descending the angle between wing and upper wing is 20 degree.Experiment showed, when the angle number of degrees be 20 while spending, it is fastest that landwaste is discharged.
Embodiment 4:
The present embodiment has done following improvement on the basis of above-described embodiment, in order to make this PDC drill bit adapt to different stone layers, and the height difference of two row's cutting teeths on described upper wing.
Described upper wing thickness different with the thickness of lower wing and lower wing is greater than the thickness of upper wing.Instantly, when the thickness of wing is greater than the thickness of wing, in drilling process, lower wing can be protected upper wing, also can protect cutting teeth.
Embodiment 5:
The present embodiment has done following improvement on the basis of above-described embodiment, large 1 centimetre of the thickness of wing on the Thickness Ratio of described lower wing.Instantly on the Thickness Ratio of wing when large 1 centimetre of the thickness of wing, do not affect rate of penetration, make its protective effect reach optimum yet.
As mentioned above, can realize preferably the present invention.
Claims (6)
1. the PDC drill bit that efficiency is high, comprise bit body (1), be evenly arranged on 6 wings, the nozzle (5) of bit body (1) upper end and the connector (6) of bit body (1) lower end on bit body (1), it is characterized in that: described wing comprises wing (3) and is positioned at the lower wing (2) of wing (3) lower end, on described upper wing (3), be provided with two row's cutting teeths (4), every row's cutting teeth (4) all has 4 cutting teeths, and described upper wing (3) is not parallel with lower wing (2).
2. the high PDC drill bit of a kind of efficiency according to claim 1, is characterized in that: the angle between described lower wing (2) and upper wing (3) is greater than 5 degree and is less than 35 degree.
3. the high PDC drill bit of a kind of efficiency according to claim 2, is characterized in that: the angle between described lower wing (2) and upper wing (3) is 20 degree.
4. the high PDC drill bit of a kind of efficiency according to claim 1, is characterized in that: the height difference of the upper two row's cutting teeths (4) of described upper wing (3).
5. the PDC drill bit high according to a kind of efficiency described in claim 1 or 4, is characterized in that: described upper wing (3) thickness different with the thickness of lower wing (2) and lower wing (2) is greater than the thickness of upper wing (3).
6. the high PDC drill bit of a kind of efficiency according to claim 5, is characterized in that: large 1 centimetre of the thickness of wing (3) on the Thickness Ratio of described lower wing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410069882.7A CN103835657A (en) | 2014-02-28 | 2014-02-28 | High-efficiency PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410069882.7A CN103835657A (en) | 2014-02-28 | 2014-02-28 | High-efficiency PDC drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103835657A true CN103835657A (en) | 2014-06-04 |
Family
ID=50799511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410069882.7A Pending CN103835657A (en) | 2014-02-28 | 2014-02-28 | High-efficiency PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103835657A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895501A (en) * | 2015-05-26 | 2015-09-09 | 成都高普石油工程技术有限公司 | PDC drill bit with high drilling speed |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495991U (en) * | 2009-06-02 | 2010-06-02 | 武汉亿斯达工具有限公司 | Gauge protection pad surfacing structure of steel diamond bit |
| CN201874472U (en) * | 2010-11-26 | 2011-06-22 | 周东 | PDC (Polycrystalline Diamond Compact) bit with double rows of teeth |
| CN201891386U (en) * | 2010-12-15 | 2011-07-06 | 中国海洋石油总公司 | 6'' six-blade and long-gauge carcase PDC (Polycrystalline Diamond Compact) drill bit |
| CN102434105A (en) * | 2011-11-30 | 2012-05-02 | 四川深远石油钻井工具有限公司 | Composite bit with rotary cut rock-breaking function |
| US20120152623A1 (en) * | 2010-12-15 | 2012-06-21 | Shilin Chen | Pdc bits with cutters laid out in both spiral directions of bit rotation |
| CN202325246U (en) * | 2011-11-18 | 2012-07-11 | 吕兴辉 | Directional PDC (Polycrystalline Diamond Compact) drill |
| CN203420636U (en) * | 2013-09-13 | 2014-02-05 | 廊坊市鼎鑫联拓工贸有限公司 | Novel PDC (polycrystalline diamond compact) drill bit |
| CN203742457U (en) * | 2014-02-28 | 2014-07-30 | 成都大漠石油机械有限公司 | Efficient PDC drill bit |
-
2014
- 2014-02-28 CN CN201410069882.7A patent/CN103835657A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495991U (en) * | 2009-06-02 | 2010-06-02 | 武汉亿斯达工具有限公司 | Gauge protection pad surfacing structure of steel diamond bit |
| CN201874472U (en) * | 2010-11-26 | 2011-06-22 | 周东 | PDC (Polycrystalline Diamond Compact) bit with double rows of teeth |
| CN201891386U (en) * | 2010-12-15 | 2011-07-06 | 中国海洋石油总公司 | 6'' six-blade and long-gauge carcase PDC (Polycrystalline Diamond Compact) drill bit |
| US20120152623A1 (en) * | 2010-12-15 | 2012-06-21 | Shilin Chen | Pdc bits with cutters laid out in both spiral directions of bit rotation |
| CN202325246U (en) * | 2011-11-18 | 2012-07-11 | 吕兴辉 | Directional PDC (Polycrystalline Diamond Compact) drill |
| CN102434105A (en) * | 2011-11-30 | 2012-05-02 | 四川深远石油钻井工具有限公司 | Composite bit with rotary cut rock-breaking function |
| CN203420636U (en) * | 2013-09-13 | 2014-02-05 | 廊坊市鼎鑫联拓工贸有限公司 | Novel PDC (polycrystalline diamond compact) drill bit |
| CN203742457U (en) * | 2014-02-28 | 2014-07-30 | 成都大漠石油机械有限公司 | Efficient PDC drill bit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895501A (en) * | 2015-05-26 | 2015-09-09 | 成都高普石油工程技术有限公司 | PDC drill bit with high drilling speed |
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| PB01 | Publication | ||
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Application publication date: 20140604 |