CN204476283U - A kind of novel five wing PDC drill bits - Google Patents

A kind of novel five wing PDC drill bits Download PDF

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Publication number
CN204476283U
CN204476283U CN201520065406.8U CN201520065406U CN204476283U CN 204476283 U CN204476283 U CN 204476283U CN 201520065406 U CN201520065406 U CN 201520065406U CN 204476283 U CN204476283 U CN 204476283U
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China
Prior art keywords
wing
main cutting
tooth
shock
absorbing joint
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Active
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CN201520065406.8U
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Chinese (zh)
Inventor
温贵凡
赖建新
庞正光
胡家建
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SHEENSTONE (SHENZHEN) OIL TOOLS CO Ltd
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SHEENSTONE (SHENZHEN) OIL TOOLS CO Ltd
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Priority to CN201520065406.8U priority Critical patent/CN204476283U/en
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Abstract

The utility model relates to a kind of novel five wing PDC drill bits, comprise bit matrix, described bit matrix comprises drill bit, described drill bit is provided with five wings, described five wings are all provided with main cutting tooth, described drill bit is provided with multiple jet hole, the quantity of described main cutting tooth is 32, the quantity that described main cutting tooth distributes on five wings is respectively 8, 6, 7, 6, 5, on each wing, the afterbody correspondence of last main cutting tooth is provided with one first shock-absorbing joint tooth, on each wing, the afterbody correspondence of penultimate main cutting tooth is provided with one second shock-absorbing joint tooth.Structure design of the present utility model makes longer service life, is not easily worn, and can effective antidetonation, also improves bit speed simultaneously.

Description

A kind of novel five wing PDC drill bits
Technical field
The utility model relates to the five wing PDC drill bits be applied in petroleum exploration and development drilling engineering.
Background technology
In oil drilling, generally adopt PDC (Polycrystalline Diamond Compact, composite polycrystal-diamond) drill bit.Five wing PDC drill bits of prior art, arranging of cutting teeth distribution on the distribution angle of wing and wing is unreasonable, as due to cutter set density inadequate, drill bit easily in the wearing and tearing of nose shoulder, reduction of service life, it is functional difference not only, and anti seismic efficiency is also bad, cutting teeth easily produces cracked and over worn phenomenon, causes drill bit easily to damage in operation process, and drilling speed is lower, affect drillng operation.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model be intended to provide a kind of nonabradable can the novel five wing PDC drill bits of effective antidetonation.
For achieving the above object, the utility model adopts following technical scheme: a kind of novel five wing PDC drill bits, described bit matrix comprises drill bit, described drill bit is provided with five wings, described five wings are all provided with main cutting tooth, described drill bit is provided with multiple jet hole, the quantity of described main cutting tooth is 32, the quantity that described main cutting tooth distributes on five wings is followed successively by 8, 6, 7, 6, 5, on each wing, the afterbody correspondence of last main cutting tooth is provided with one first shock-absorbing joint tooth, on each wing, the afterbody correspondence of penultimate main cutting tooth is provided with one second shock-absorbing joint tooth.
Preferably, five wings are respectively the first wing, the second wing, the 3rd wing, the 4th wing and the 5th wing, wherein the first wing is provided with 8 main cutting teeth, second wing is provided with 6 main cutting teeth, 3rd wing is provided with 7 main cutting teeth, 4th wing is provided with 6 main cutting teeth, and the 5th wing is provided with 5 main cutting teeth.
Preferably, on described second wing, the diameter of last main cutting tooth is 13mm, and the diameter of 7 main cutting teeth, 6 main cutting teeth on the 4th wing and 5 main cutting teeth on the 5th wing on 8 main cutting teeth on the first wing, other 5 the main cutting teeth on the second wing, the 3rd wing is 16mm.
Preferably, the quantity of described jet hole is 5.
Preferably, the edge of a knife side of described first wing and the edge of a knife side of the 3rd wing are respectively equipped with 2 jet holes, and the edge of a knife side of the edge of a knife side of described second wing, the edge of a knife side of the 4th wing and the 5th wing is respectively equipped with 1 jet hole.
Preferably, the center of five wing wound drill bit bizets radially distributes, and described second wing is positioned at the position in the clockwise 79 degree of directions of the first wing; 3rd wing is positioned at the position of clockwise 155 degree of the first wing; 4th wing is positioned at the position of clockwise 229 degree of the first wing; 5th wing is positioned at the position of clockwise 295 degree of the first wing.
Preferably, described first shock-absorbing joint tooth and the second shock-absorbing joint tooth are cylindrical, and wherein the top of the first shock-absorbing joint tooth and the second shock-absorbing joint tooth is down perigon angle, and the diameter of the first shock-absorbing joint tooth and the second shock-absorbing joint tooth is 13mm.
Preferred, all short than the length protruding from wing of the main cutting tooth of the correspondence 0 ~ 2mm of the length protruding from wing of described first shock-absorbing joint tooth and the second shock-absorbing joint tooth.
Preferred, 32 main cutting teeth launch in the shape of a spiral centered by the center of drill bit, and the hypsokinesis angle of the main cutting tooth on the helix of each circle is consistent.
The beneficial effects of the utility model are as follows:
This product suitably have adjusted the quantity of main cutting tooth, reasonable cloth tooth, ensures the cutter set density of wing, make drill bit not easy to wear, shock-absorbing joint tooth can support ground in the side of main cutting tooth, can effective antidetonation, extend the application life of drill bit, also improve the speed of drilling well.The distributed quantity of the main cutting tooth on the angle between wing and each wing makes be further enhanced the application life of whole drill bit.The top of shock-absorbing joint tooth is down the design of perigon angle, can play better anti seismic efficiency.The distributed number of jet hole is more reasonable simultaneously, can be discharged by the landwaste produced in time, can play better chip removal effect in drilling process.
Accompanying drawing explanation
Fig. 1 is the structure chart of the better embodiment of a kind of novel five wing PDC drill bits of the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described further:
Refer to Fig. 1, the utility model relates to a kind of novel five wing PDC drill bits, comprise bit matrix, bit matrix comprises drill bit 100, drill bit 100 is provided with five wings, five wings are all provided with main cutting tooth, drill bit 100 is provided with multiple jet hole 300, the quantity of main cutting tooth is 32, the quantity that main cutting tooth distributes on five wings is respectively 8, 6, 7, 6, 5, on each wing, the afterbody correspondence of last main cutting tooth is provided with one first shock-absorbing joint tooth 200a, on each wing, the afterbody correspondence of penultimate main cutting tooth is provided with one second shock-absorbing joint tooth 200b.Wherein the edge of a knife of main cutting tooth and afterbody are located opposite from the two ends of main cutting tooth.Jet hole 300 is for discharging the landwaste bored in ground process in time.First shock-absorbing joint tooth 200a, the second shock-absorbing joint tooth 200b all can be used for supporting stratum, play the effect of damping.First shock-absorbing joint tooth 200a and the second shock-absorbing joint tooth 200b all follows the main cutting tooth corresponding with it to be on concentric circles, certainly, also can be not limited to and be on concentric circles with corresponding main cutting tooth.It should be noted that: last main cutting tooth to be respectively on each wing from drill bit 100 center a main cutting tooth farthest, is secondly penultimate main cutting tooth.
Concrete, five wings are respectively the first wing 101, second wing 102, the 3rd wing 103, the 4th wing 104 and the 5th wing 105, wherein the first wing 101 is provided with 8 main cutting teeth, second wing 102 is provided with 6 main cutting teeth, 3rd wing 103 is provided with 7 main cutting teeth, 4th wing 104 is provided with 6 main cutting teeth, and the 5th wing 105 is provided with 5 main cutting teeth.Most preferred, main cutting tooth from the close-by examples to those far off arranges according to the distance at the center with drill bit 100, and its distribution situation on each wing is: the first wing 101 is the 1st, 3,6,10,15,20,25, No. 30 main cutting tooth; Second wing 102 is the 5th, 9,14,19,24, No. 29 main cutting tooth; 3rd wing 103 is the 2nd, 4,8,13,18,23, No. 28 main cutting tooth; 4th wing 104 is the 7th, 12,17,22,27, No. 32 main cutting tooth; 5th wing 105 is the 11st, 16,21,26, No. 31 main cutting tooth.Above-mentioned being distributed as the most reasonably distributes, and can make be improved the application life of drill bit when guaranteeing high-speed rotation.Certainly, except above-mentioned distribution form, the distribution of main cutting tooth can also be the form of other distributions.
On second wing, the diameter of last main cutting tooth is 13mm, and the diameter of 7 main cutting teeth, 6 main cutting teeth on the 4th wing and 5 main cutting teeth on the 5th wing on 8 main cutting teeth on the first wing, other 5 the main cutting teeth on the second wing, the 3rd wing is 16mm.It is not identical that the diameter of main cutting tooth is arranged, and effectively can improve the rotating speed of bit operation, Loss reducing.
The quantity of the jet hole 300 that drill bit 100 is arranged is 5.The edge of a knife side of the first wing 101 and the edge of a knife side of the 3rd wing 103 are respectively equipped with the edge of a knife side of 2 jet holes 300, second wing 102, the edge of a knife side of the edge of a knife side of the 4th wing 104 and the 5th wing 105 is respectively equipped with 1 jet hole 300.First wing 101 and the 3rd wing 103 are the rimmer knife wing, therefore edge of a knife side can arrange 2 jet holes 300; Remaining wing is relatively then the short sword wing, and its edge of a knife side can arrange 1 jet hole 300 because of space constraint.The design of this kind of form of jet hole 300 can discharge landwaste timely and effectively in the course of the work.Certainly, the quantity of jet hole 300 can be arranged according to the actual requirements, namely also can be less than 5, also can be unnecessary 5.The position distribution of each jet hole also can be selected as required.
The center of five wing wound drill bit bizets radially distributes, and the second wing 102 is positioned at the position in the first clockwise 79 degree of directions of wing 101; 3rd wing 103 is positioned at the position of clockwise 155 degree of the first wing 101; 4th wing 104 is positioned at the position of clockwise 229 degree of the first wing 101; 5th wing 105 is positioned at the position of clockwise 295 degree of the first wing 101.Wherein, the interval of length wing arranges it is conventional arrangement, and can also adopt other arrangement for concrete product, the angle that is distributed can adjust as required.
First shock-absorbing joint tooth 200a and the second shock-absorbing joint tooth 200b is cylindrical, and wherein the top of the first shock-absorbing joint tooth 200a and the second shock-absorbing joint tooth 200b is down perigon angle, and the diameter of the first shock-absorbing joint tooth and the second shock-absorbing joint tooth is 13mm.Certainly, the diameter of the first shock-absorbing joint tooth 200a and the second shock-absorbing joint tooth 200b can also adopt other rational size, but the most preferred diameter value of shock-absorbing joint tooth 200 is 13mm, this can make shock-absorbing joint tooth 200 more reasonably be distributed on wing, reaches better damping effect.It should be noted that: the top of the first shock-absorbing joint tooth 200a and the second shock-absorbing joint tooth 200b is towards the one end at drill bit 100 center.
All short than the length protruding from wing of the main cutting tooth of the correspondence 0 ~ 2mm of the length protruding from wing of the first shock-absorbing joint tooth 200a and the second shock-absorbing joint tooth 200b.Be wherein most preferred mode than the short 1mm of the length protruding from wing of the main cutting tooth of correspondence, such damping effect is better.
Preferred, 32 main cutting teeth launch in the shape of a spiral centered by the center of drill bit 100, and the hypsokinesis angle of the main cutting tooth on the helix of each circle is consistent.Specifically, the back rake angle of 1-4 main cutting tooth is 15 °, the back rake angle of 5-8 main cutting tooth is 17 °, the back rake angle of 9-13 main cutting tooth is 18 °, the back rake angle of 14-18 main cutting tooth is 20 °, the back rake angle of 19-23 main cutting tooth is 22 °, and the back rake angle of 24-28 main cutting tooth is 25 °, and the back rake angle of 29-32 main cutting tooth is 28 °.Five wing PDC drill bits in the utility model can be made like this when carrying out drillng operation, the uniform force of the main cutting tooth on the wing of this drill bit 1, rock breaking efficiency is good, not easily broken and crumble.Other angle set-up mode can certainly be adopted.
Above-mentioned five wing PDC drill bits are mainly applicable to the drillng operation on the stratum that soft or hard is interlocked, main cutting tooth distribution on the distribution angle of its wing and wing arrange rationally, the anti seismic efficiency of shock-absorbing joint tooth is good, by force functional, and cracked and over worn phenomenon not easily appears in main cutting tooth.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the utility model claim.

Claims (9)

1. novel five wing PDC drill bits, comprise bit matrix, described bit matrix comprises drill bit, described drill bit is provided with five wings, described five wings are all provided with main cutting tooth, described drill bit is provided with multiple jet hole, it is characterized in that: the quantity of described main cutting tooth is 32, the quantity that described main cutting tooth distributes on five wings is respectively 8, 6, 7, 6, 5, on each wing, the afterbody correspondence of last main cutting tooth is provided with one first shock-absorbing joint tooth, on each wing, the afterbody correspondence of penultimate main cutting tooth is provided with one second shock-absorbing joint tooth.
2. novel five wing PDC drill bits as claimed in claim 1, it is characterized in that: five wings are respectively the first wing, the second wing, the 3rd wing, the 4th wing and the 5th wing, wherein the first wing is provided with 8 main cutting teeth, second wing is provided with 6 main cutting teeth, 3rd wing is provided with 7 main cutting teeth, 4th wing is provided with 6 main cutting teeth, and the 5th wing is provided with 5 main cutting teeth.
3. novel five wing PDC drill bits as claimed in claim 2, it is characterized in that: on described second wing, the diameter of last main cutting tooth is 13mm, and the diameter of 7 main cutting teeth, 6 main cutting teeth on the 4th wing and 5 main cutting teeth on the 5th wing on 8 main cutting teeth on the first wing, other 5 the main cutting teeth on the second wing, the 3rd wing is 16mm.
4. novel five wing PDC drill bits as claimed in claim 2, is characterized in that: the quantity of described jet hole is 5.
5. novel five wing PDC drill bits as claimed in claim 4, it is characterized in that: the edge of a knife side of described first wing and the edge of a knife side of the 3rd wing are respectively equipped with 2 jet holes, the edge of a knife side of the edge of a knife side of described second wing, the edge of a knife side of the 4th wing and the 5th wing is respectively equipped with 1 jet hole.
6. novel five wing PDC drill bits as claimed in claim 2, it is characterized in that: the center of five wing wound drill bit bizets radially distributes, described second wing is positioned at the position in the clockwise 79 degree of directions of the first wing; 3rd wing is positioned at the position of clockwise 155 degree of the first wing; 4th wing is positioned at the position of clockwise 229 degree of the first wing; 5th wing is positioned at the position of clockwise 295 degree of the first wing.
7. novel five wing PDC drill bits as claimed in claim 1, it is characterized in that: described first shock-absorbing joint tooth and the second shock-absorbing joint tooth are cylindrical, wherein the top of the first shock-absorbing joint tooth and the second shock-absorbing joint tooth is down perigon angle, and the diameter of the first shock-absorbing joint tooth and the second shock-absorbing joint tooth is 13mm.
8. novel five wing PDC drill bits as claimed in claim 7, is characterized in that: all short than the length protruding from wing of the main cutting tooth of the correspondence 0 ~ 2mm of the length protruding from wing of described first shock-absorbing joint tooth and the second shock-absorbing joint tooth.
9. the novel five wing PDC drill bits according to any one of claim 1 to 8, is characterized in that: 32 main cutting teeth launch in the shape of a spiral centered by the center of drill bit, and the hypsokinesis angle of the main cutting tooth on the helix of each circle is consistent.
CN201520065406.8U 2015-01-29 2015-01-29 A kind of novel five wing PDC drill bits Active CN204476283U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105604491A (en) * 2016-03-16 2016-05-25 成都迪普金刚石钻头有限责任公司 PDC cutting tooth based on damping structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105604491A (en) * 2016-03-16 2016-05-25 成都迪普金刚石钻头有限责任公司 PDC cutting tooth based on damping structure
CN105604491B (en) * 2016-03-16 2018-01-23 成都迪普金刚石钻头有限责任公司 A kind of PDC cutting tooths based on shock-damping structure

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