CN203129962U - Bit-balling-prevention PDC (polycrystalline diamond compact) drill bit - Google Patents
Bit-balling-prevention PDC (polycrystalline diamond compact) drill bit Download PDFInfo
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- CN203129962U CN203129962U CN 201320156830 CN201320156830U CN203129962U CN 203129962 U CN203129962 U CN 203129962U CN 201320156830 CN201320156830 CN 201320156830 CN 201320156830 U CN201320156830 U CN 201320156830U CN 203129962 U CN203129962 U CN 203129962U
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Abstract
The utility model relates to the field of machinery, in particular to a bit-balling-prevention PDC (polycrystalline diamond compact) drill bit, which comprise a drill bit body and five cutter wings, wherein the five cutter wings respectively comprise a first cutter wing, a second cutter wing, a third cutter wing, a fourth cutter wing and a fifth cutter wing, a front row of cutting teeth and a back row of cutting teeth are respectively arranged on each cutter wing, the front row of cutting teeth arranged on the first cutter wing comprise five main cutting teeth, and the back row of cutting teeth on the first cutter wing comprise four sub cutting teeth; the front row of cutting teeth arranged on the second cutter wing comprise four main cutting teeth, and the back row of cutting teeth on the second cutter wing comprise four sub cutting teeth; the front row of cutting teeth arranged on the third cutter wing comprise five main cutting teeth, and the back row of cutting teeth on the third cutter wing comprise four sub cutting teeth; the front row of cutting teeth arranged on the fourth cutter wing comprise seven main cutting teeth, and the back row of cutting teeth on the fourth cutter comprise four sub cutting teeth; and the front row of cutting teeth arranged on the fifth cutter wing comprise six main cutting teeth, and the back row of cutting teeth on the fifth cutter wing comprise four sub cutting teeth. The bit-balling-prevention PDC drill bit can be used in stratums with higher hardness.
Description
Technical field
The utility model relates to mechanical field, especially relates to a kind of anti-mud drum PDC drill bit.
Background technology
(Polycrystalline Diamond Compact bit, PDC) drill bit is the abbreviation of polycrystalline diamond compact bit to composite polycrystal-diamond.It is present oil drilling industry a kind of drilling tool commonly used.
Existing P DC drill bit comprises: bit body, wing and joint etc., and its center tap and wing are separately positioned on the two ends of bit body, and joint is used for other instruments with drilling well, and for example drilling rod is connected, and is placed with row's cutting teeth on the wing.The PDC drill bit rotates under the drive of drilling rod, rotates thereby drive wing, makes the cutting face of cutting teeth realize the cutting to the stratum.
In the PDC drill bit, cutting teeth is more many, and then the stratum power that passes to drill bit is dispersed on a plurality of cutting teeths, and the power that single cutting teeth bears is littler, thus the hardness on the stratum that can use also more big.But during owing to drilling well, the diameter of well is certain, therefore bit body is limited for the area at the position that cutting teeth is set, and must leave the chip area of enough width between wing and the wing, and the thickness and the quantity that therefore are arranged on the wing on the bit body also have certain limitation.Reduce the thickness of wing, increase the quantity of wing, make the quantity of wing more than 10, for the width that guarantees chip area enough, the thickness that is merely able to corresponding reduction wing, this drill bit are in high-speed rotation, because cutting teeth will bear bigger power, when cutting teeth with this stressed pass to wing after, may cause breaking of wing; Increase the thickness of wing, for the width that guarantees chip area enough, can only reduce the quantity of wing, so then may cause the wing quantity on the bit body very few, be generally 3 to 6, cause the installation position of cutting teeth less like this, thereby make drill bit can only be used in the lower stratum of hardness.
Therefore, existing P DC drill bit is under the situation of wing negligible amounts, and the hardness on the stratum that it can be used is also less.
The utility model content
The utility model proposes a kind of anti-mud drum PDC drill bit, this anti-mud drum PDC drill bit can use in the higher stratum of hardness.
In order to achieve the above object, the technical solution of the utility model is achieved in that
A kind of anti-mud drum composite polycrystal-diamond PDC drill bit comprises: bit body and wing;
Described wing has five, is respectively first wing, second wing, the 3rd wing, the four blade wing and the 5th wing;
Be provided with front-seat cutting teeth and back row's cutting teeth on each described wing;
Front-seat cutting teeth on described first wing comprises five main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths;
Front-seat cutting teeth on described second wing comprises four main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths;
Front-seat cutting teeth on described the 3rd wing comprises five main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths;
Front-seat cutting teeth on the described four blade wing comprises seven main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths;
Front-seat cutting teeth on described the 5th wing comprises six main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths.
In each embodiment of the utility model, preferably, five described wings circularize an end that is arranged at described bit body;
The distribution sequence of five described wings is followed successively by: first wing, the 5th wing, second wing, the four blade wing and the 3rd wing.
In each embodiment of the utility model, preferably, the angle that the cutting face of each described main cutting tooth and the cutting face of described secondary cutting teeth all become to preset with plane perpendicular to the axis of described bit body.
In each embodiment of the utility model, preferably, also be provided with a plurality of flap nozzles on the described bit body;
Be provided with at least one described flap nozzle between per two adjacent described wings.
In each embodiment of the utility model, preferably, described flap nozzle is connected with described bit body is dismountable.
In each embodiment of the utility model, preferably, be provided with cavity in the described bit body; Described cavity communicates with described flap nozzle.
In each embodiment of the utility model, preferably, the end that described bit body is provided with wing also is provided with at least one water nozzle.
In each embodiment of the utility model, preferably, the end near described joint on each described wing also is fixedly connected with the guarantor footpath.
In each embodiment of the utility model, preferably, described guarantor also is provided with a plurality of auxiliary cutting elements on the footpath.
In each embodiment of the utility model, preferably, described wing is welded on the described bit body by the medium carbon steel welding rod.
The anti-mud drum PDC drill bit that the utility model provides compared to existing technologies, include five wings, be provided with front-seat cutting teeth and back row's cutting teeth on five wings, owing to be provided with two row's cutting teeths at five wings, because the quantity of wing has only five, therefore can increase the thickness of wing accordingly and can not influence the width of chip area, so wing can not break when drill bit rotates; Arrange two row's cutting teeths at wing, under the prerequisite of the quantity that does not increase wing, increased the installation quantity of cutting teeth, therefore this drill bit when in use, the stratum is distributed to more cutting teeth for the cutting force of drill bit, and namely under the identical situation of cutting teeth hardness, cutting teeth is more many, the power that transmits of the stratum that can bear also more big, therefore can be used in the bigger stratum of hardness.Thereby anti-mud drum PDC drill bit provided by the utility model is than existing drill bit, when using the wing of same thickness and quantity with other anti-mud drum PDC drill bit, the hardness on the stratum that can cut bigger.
In anti-mud drum PDC drill bit provided by the utility model, because the quantity of wing has only five, so leaves bigger slit between the wing, and be provided with at least one flap nozzle in each gap, the water balance of flap nozzle ejection distributes.Slit between the wing is the chip area of this anti-mud drum PDC drill bit.When anti-mud drum PDC drill bit is smashed underground rock, earth etc., broken rock and earth mix with the water that flows out from flap nozzle and form sposh, sposh can be discharged from the position of anti-mud drum PDC drill bit by chip area, and can not be wrapped in the periphery of anti-mud drum PDC drill bit, therefore the full balance Hydraulic Power System design of the big chip area of anti-mud drum PDC drill bit provided by the utility model has increased the anti-mud drum ability of anti-mud drum PDC drill bit under quick drilling condition.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the plan structure schematic diagram of the anti-mud drum PDC drill bit that provides of the utility model embodiment one, embodiment two, embodiment three, embodiment four and embodiment five;
Fig. 2 is the cross sectional representation of the anti-mud drum PDC drill bit that provides of the utility model embodiment four.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Anti-mud drum PDC drill bit provided by the utility model, its wing is provided with front-seat cutting teeth and back row's cutting teeth, under the less situation of wing, when namely having only five wings, increased the quantity of main cutting tooth, the pressure on the stratum that can bear many, when using the wing of same thickness and quantity with other anti-mud drum PDC drill bit, the hardness on the stratum that can cut bigger.
Embodiment one:
Fig. 1 is the schematic top plan view of the anti-mud drum PDC drill bit that provides of the utility model embodiment one, and referring to shown in Figure 1, anti-mud drum PDC drill bit provided by the utility model comprises: bit body 1 and wing 2; Described wing 2 has five, is respectively first wing 3, second wing 4, the 3rd wing 5, the four blade wing 6 and the 5th wing 7; Be provided with front-seat cutting teeth 8 and back row's cutting teeth 9 on each described wing 2; Front-seat cutting teeth 8 on described first wing 3 comprises five main cutting teeth 10, and back row's cutting teeth 9 comprises four secondary cutting teeths 11; Front-seat cutting teeth 8 on described second wing 4 comprises four main cutting teeth 10, and back row's cutting teeth 9 comprises four secondary cutting teeths 11; Front-seat cutting teeth 8 on described the 3rd wing 5 comprises five main cutting teeth 10, and back row's cutting teeth 9 comprises four secondary cutting teeths 11; Front-seat cutting teeth 8 on the described four blade wing 6 comprises seven main cutting teeth 10, and back row's cutting teeth 9 comprises four secondary cutting teeths 11; Front-seat cutting teeth 8 on described the 5th wing 7 comprises six main cutting teeth 10, and back row's cutting teeth 9 comprises four secondary cutting teeths 11.
In the anti-mud drum PDC drill bit that in present embodiment one, provides, include five wings 2, be provided with front-seat cutting teeth 8 and back row's cutting teeth 9 on five wings 2, owing to be provided with two row's cutting teeths at five wings 2, because the quantity of wing 2 has only five, therefore can increase the thickness of wing 2 accordingly and can not influence the width of chip area, so wing 2 can not break when drill bit rotates; Arrange two row's cutting teeths at wing 2, under the prerequisite of the quantity that does not increase wing 2, increased the installation quantity of cutting teeth, therefore this drill bit when in use, the stratum is distributed to more cutting teeth for the cutting force of drill bit, and namely under the identical situation of cutting teeth hardness, cutting teeth is more many, the power that transmits of the stratum that can bear also more big, therefore can be used in the bigger stratum of hardness.Thereby anti-mud drum PDC drill bit provided by the utility model is than existing drill bit, when using the wing of same thickness and quantity with other anti-mud drum PDC drill bit, the hardness on the stratum that can cut bigger.
Embodiment two:
Referring to shown in Figure 1, in the anti-mud drum PDC drill bit that the utility model embodiment two provides, on the basis of above-described embodiment one, five described wings 2 circularize an end that is arranged at described bit body 1; The distribution sequence of five described wings 2 is followed successively by: first wing 3, the 5th wing 7, second wing 4, the four blade wing 6 and the 3rd wing 5.
In present embodiment two, the distribution sequence of five wings 2 is distributed as successively: first wing 3, the 5th wing 7, second wing 4, the four blade wing 6 and the 3rd wing 5.Being about to the described four blade wing 6 is arranged between described second wing 4 and described the 3rd wing 5; Described the 5th wing 7 is arranged between described first wing 3 and described second wing 4.Because the front-seat cutting teeth 8 on the four blade wing 6 includes five main cutting teeth 10, front-seat cutting teeth 8 on the 5th wing 7 includes five main cutting teeth 10 and a secondary cutting teeth 11, quantity is all more than first wing 3, second wing 4 and the 3rd wing 5, therefore hold the four blade wing 6 of more main cutting tooth 10 and secondary cutting teeth 11 and the 5th wing 7 also than first wing 3, second wing 4 and the 3rd wing 5 are long, if in the time of therefore with two long four blade wings 6 and the 5th wing 7 placed adjacent, may conflict and be in the same place in the end of the four blade wing 6 and the 5th wing 7, perhaps the distance between the four blade wing 6 and the 5th wing 7 is too little, the slit is little, thereby drilling effect and the efficient of the anti-mud drum PDC drill bit of influence, therefore use second wing 4 that the 4th morality and justice 8 and the 5th wing 7 are separated, make and leave enough distances between the four blade wing 6 and the 5th wing 7, thereby can make this anti-mud drum PDC drill bit when in use, be in the stratum of bit body axial location by the four blade wing 6 and 7 cuttings of the 5th wing, increased the effect of anti-mud drum PDC bit cutting.Certainly, in present embodiment two, can also use first wing 3 or the 3rd wing 5 that the four blade wing 6 and the 5th wing 7 are separated, can reach the same technique effect equally.
Embodiment three:
Referring to shown in Figure 1, in the anti-mud drum PDC drill bit that the utility model embodiment three provides, on the basis of above-described embodiment one and embodiment two, the angle that the cutting face of the cutting face of each described main cutting tooth 10 and described secondary cutting teeth 11 all becomes to preset with plane perpendicular to the axis of described bit body 1.
In present embodiment three, general, main cutting tooth 10 and secondary cutting teeth 11 are bullet type or cylindrical, the cutting face of the cutting face of described main cutting tooth 10 and described secondary cutting teeth 11 is the circular face of bullet type or cylindrical main cutting tooth 10 and secondary cutting teeth 11, the angle that the cutting face of the cutting face of each described main cutting tooth 10 and described secondary cutting teeth 11 is all become to preset with plane perpendicular to the axis of described bit body 1, namely in order to make the cutting face of main cutting tooth 10 and secondary cutting teeth 11 in drilling well, can better contact with the stratum, a lateral edges that is about to the cutting face of main cutting tooth 10 and secondary cutting teeth 11 protrudes, do not need to apply for main cutting tooth 10 and secondary cutting teeth 11 pressure of too big axis along bit body 1, namely can easily cut in the stratum, increased the self-sharpening of anti-mud drum PDC drill bit, and then the efficient when improve using this anti-mud drum PDC drill bit drilling well.
Embodiment four:
Referring to illustrated in figures 1 and 2, the anti-mud drum PDC drill bit that the utility model embodiment four provides on the basis of above-mentioned three embodiment, also is provided with flap nozzle 12 on the described bit body 1; Be provided with at least one described flap nozzle 12 between per two adjacent described wings 2.
In present embodiment four, because anti-mud drum PDC drill bit is rotating the process that bottom is cut at a high speed, be the constantly process of friction of anti-mud drum PDC drill bit and stratum, in this process, can produce a large amount of frictional heats, when this heat is too high, make that the temperature of anti-mud drum PDC drill bit is too high, can make that the proterties of anti-mud drum PDC drill bit changes, cause the damage of anti-mud drum PDC drill bit easily, and the part that mainly produces heat is wing 2 and be arranged on main cutting tooth 10 and secondary cutting teeth 11 on the wing, therefore carrying 1 at drill bit arranges flap nozzle 12, and flap nozzle 12 is arranged between the wing 2, and when making this anti-mud drum PDC drill bit carry out drilling well, current flow out from flap nozzle 12, realized the cooling to anti-mud drum PDC drill bit, and will prevent that the formation fines of mud drum PDC drill bit cutting-out by discharging in the chip area between the wing 2, makes that the use of anti-mud drum PDC drill bit is more safe, increase the application life of anti-mud drum PDC drill bit.
In present embodiment four, because the quantity of wing 2 has only five, so leaves bigger slit between the wing 2, and be provided with at least one flap nozzle 12 in each slit, the water balance of flap nozzle 12 ejections distributes.Slit between the wing 2 is the chip area of this anti-mud drum PDC drill bit.When anti-mud drum PDC drill bit is smashed underground rock, earth etc., broken rock and earth mix with the water that flows out from flap nozzle 12 and form sposh, sposh can be discharged from the position of anti-mud drum PDC drill bit by chip area, and can not be wrapped in the periphery of anti-mud drum PDC drill bit, therefore the full balance Hydraulic Power System design of the big chip area of anti-mud drum PDC drill bit provided by the utility model has increased the anti-mud drum ability of anti-mud drum PDC drill bit under quick drilling condition.
In present embodiment four, described flap nozzle 12 and described 1 dismountable connection of bit body.Because the occasion difference that anti-mud drum PDC drill bit is used, therefore the drilling speed difference during its work, thereby cause anti-mud drum PDC drill bit when different occasions is used, the heat that produces is also different, and becoming solid capacity all different, therefore when the drilling speed height of preventing mud drum PDC drill bit, when solid capacity is big, need more water from flap nozzle 12 ejections, this just needs flap nozzle 12 relatively large, in case the drilling speed of anti-mud drum PDC drill bit is low, and solid capacity hour, the water that then needs is also few, so flap nozzle 12 is relatively also less.Therefore with flap nozzle 12 dismountable being connected on the bit body 1, the user can change flap nozzle 12 according to the actual demand of oneself, thereby convenient for users to use.
In present embodiment four, be provided with cavity 13 in the described bit body 1; Described cavity 13 communicates with described flap nozzle 12.Because anti-mud drum PDC drill bit couples together with drilling rod, the rotation of drilling rod drives the rotation of anti-mud drum PDC drill bit, the water of cooling usefulness is transferred to cavity 13 on the bit body 1 by the water transport channel in the drilling rod, again because flap nozzle 12 ejections that cavity 13 communicates are prevented mud drum PDC drill bit cooling purpose thereby be reached for.
In present embodiment four, the end that described bit body 1 is provided with wing 2 also is provided with at least one water nozzle.This water nozzle plays the effect identical with flap nozzle 12.Because the size of the installation position of flap nozzle 12 all is limited, therefore caused the water yield that has limited flap nozzle 12, being about to flap nozzle 12 dwindles passable, increasing then has certain restriction, therefore be provided with at least one water nozzle at bit body 1, water nozzle mainly plays the effect of water outlet, replenishes under the not enough situation of the water yield of flap nozzle 12, and utilize flap nozzle 12 and water nozzle to combine, can regulate water yield better.
Embodiment five:
Referring to shown in Figure 1, in the anti-mud drum PDC drill bit that the utility model embodiment five provides, on the basis of above-mentioned four embodiment, also be fixedly connected with on each described wing 2 and protect footpath 14.
In present embodiment five, because anti-mud drum PDC drill bit is in the process of high-speed rotation, because wing 2, main cutting tooth 10 and secondary cutting teeth 11 will be realized cutting to the stratum, in this process, because anti-mud drum PDC drill bit also will be subjected to putting forward the power that 1 axis extends along drill bit, therefore may cause the crooked of drill bit, cause institute's drilling well to warp, influence the effect of drilling well, therefore connected at each wing 5 and protected footpath 14, five outer peripheral faces of protecting footpath 14 all one flexible on, and identical with the diameter of a circle of exempting from the place week of the outermost of wing 2, guaranteed that anti-mud drum PDC drill bit can be not crooked.
Five kinds of present embodiments, also be provided with a plurality of auxiliary cutting elements 15 on the described guarantor footpath 14.Because anti-mud drum PDC drill bit is in the process of drilling well, the borehole wall that gets out has a plurality of projectioies, therefore when pulling out of hole, be about to run into when anti-mud drum PDC drill bit takes out the jam of projection from drilling well, therefore be provided with a plurality of auxiliary cutting elements 15 in guarantor footpath 14, can be after the main cutting tooth 10 on the wing 2 and secondary cutting teeth 11 be realized drilling wells, the jam of the position of drilling well is also machined away the jam when avoiding pulling out of hole.
In above-mentioned five embodiment, described wing 2 is welded on the described bit body 1 by the medium carbon steel welding rod.Because wing 2 is when being welded on the bit body 1, it is fixing with bit body 1 to be about to wing 2, belongs to the fixed teeth drill bit, thereby should can not cause danger because of coming off of wing 2 by anti-mud drum PDC drill bit when drilling well, and reliability is higher.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. an anti-mud drum composite polycrystal-diamond PDC drill bit is characterized in that, comprising: bit body and wing;
Described wing has five, is respectively first wing, second wing, the 3rd wing, the four blade wing and the 5th wing;
Be provided with front-seat cutting teeth and back row's cutting teeth on each described wing;
Front-seat cutting teeth on described first wing comprises five main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths;
Front-seat cutting teeth on described second wing comprises four main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths;
Front-seat cutting teeth on described the 3rd wing comprises five main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths;
Front-seat cutting teeth on the described four blade wing comprises seven main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths;
Front-seat cutting teeth on described the 5th wing comprises six main cutting teeth, and back row's cutting teeth comprises four secondary cutting teeths.
2. anti-mud drum PDC drill bit according to claim 1 is characterized in that, five described wings circularize an end that is arranged at described bit body;
The distribution sequence of five described wings is followed successively by: first wing, the 5th wing, second wing, the four blade wing and the 3rd wing.
3. anti-mud drum PDC drill bit according to claim 1 is characterized in that, the angle that the cutting face of each described main cutting tooth and the cutting face of described secondary cutting teeth all become to preset with plane perpendicular to the axis of described bit body.
4. anti-mud drum PDC drill bit according to claim 1 is characterized in that, also is provided with a plurality of flap nozzles on the described bit body;
Be provided with at least one described flap nozzle between per two adjacent described wings.
5. anti-mud drum PDC drill bit according to claim 4 is characterized in that described flap nozzle is connected with described bit body is dismountable.
6. according to claim 4 or 5 described anti-mud drum PDC drill bits, it is characterized in that, be provided with cavity in the described bit body; Described cavity communicates with described flap nozzle.
7. anti-mud drum PDC drill bit according to claim 6 is characterized in that the end that described bit body is provided with wing also is provided with at least one water nozzle.
8. according to any described anti-mud drum PDC drill bit of claim 1-5, it is characterized in that, also be fixedly connected with on each described wing and protect the footpath.
9. anti-mud drum PDC drill bit according to claim 8 is characterized in that, described guarantor also is provided with a plurality of auxiliary cutting elements on the footpath.
10. according to any described anti-mud drum PDC drill bit of claim 1-5, it is characterized in that described wing is welded on the described bit body by the medium carbon steel welding rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156830 CN203129962U (en) | 2013-04-01 | 2013-04-01 | Bit-balling-prevention PDC (polycrystalline diamond compact) drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156830 CN203129962U (en) | 2013-04-01 | 2013-04-01 | Bit-balling-prevention PDC (polycrystalline diamond compact) drill bit |
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| Publication Number | Publication Date |
|---|---|
| CN203129962U true CN203129962U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320156830 Expired - Fee Related CN203129962U (en) | 2013-04-01 | 2013-04-01 | Bit-balling-prevention PDC (polycrystalline diamond compact) drill bit |
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| CN (1) | CN203129962U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041222A (en) * | 2015-07-13 | 2015-11-11 | 中国石油天然气集团公司 | Inner-chip removal polycrystalline diamond compact (PDC) bit |
| CN105840103A (en) * | 2016-05-31 | 2016-08-10 | 陕西金刚石油机械有限公司 | Five-blade steel body type polycrystalline diamond compact (PDC) drill bit with auxiliary cutting teeth |
| CN106593307A (en) * | 2017-01-21 | 2017-04-26 | 刘伟 | Dynamic-static type double-stage PDC drill bit |
| CN107514235A (en) * | 2017-10-17 | 2017-12-26 | 沧州格锐特钻头有限公司 | A kind of PDC drill bit of spiral vibrating nozzles and its composition |
| CN107558929A (en) * | 2017-10-17 | 2018-01-09 | 沧州格锐特钻头有限公司 | A kind of special type refuses mud drum PDC drill bit |
| CN112554801A (en) * | 2019-09-26 | 2021-03-26 | 西南石油大学 | Composite drill bit with blade reinforcing structure |
-
2013
- 2013-04-01 CN CN 201320156830 patent/CN203129962U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041222A (en) * | 2015-07-13 | 2015-11-11 | 中国石油天然气集团公司 | Inner-chip removal polycrystalline diamond compact (PDC) bit |
| CN105840103A (en) * | 2016-05-31 | 2016-08-10 | 陕西金刚石油机械有限公司 | Five-blade steel body type polycrystalline diamond compact (PDC) drill bit with auxiliary cutting teeth |
| CN106593307A (en) * | 2017-01-21 | 2017-04-26 | 刘伟 | Dynamic-static type double-stage PDC drill bit |
| CN107514235A (en) * | 2017-10-17 | 2017-12-26 | 沧州格锐特钻头有限公司 | A kind of PDC drill bit of spiral vibrating nozzles and its composition |
| CN107558929A (en) * | 2017-10-17 | 2018-01-09 | 沧州格锐特钻头有限公司 | A kind of special type refuses mud drum PDC drill bit |
| CN112554801A (en) * | 2019-09-26 | 2021-03-26 | 西南石油大学 | Composite drill bit with blade reinforcing structure |
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| 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: 20130814 Termination date: 20170401 |