CN204591153U - The special PDC drill bit of integral type oil drilling - Google Patents
The special PDC drill bit of integral type oil drilling Download PDFInfo
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- CN204591153U CN204591153U CN201520274336.7U CN201520274336U CN204591153U CN 204591153 U CN204591153 U CN 204591153U CN 201520274336 U CN201520274336 U CN 201520274336U CN 204591153 U CN204591153 U CN 204591153U
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Abstract
The utility model relates to the special PDC drill bit of integral type oil drilling, its technical scheme is: the bottom of drill body is provided with connecting thread, drill body top is provided with organizes wing more, the outer wall of drill body is provided with mark groove, the inside of drill body is provided with the main water flow passage of high pressure and high pressure point water flow passage, chip area is provided with between two groups of wings, high pressure spray water nozzle is provided with at the root position often organizing wing, described high pressure spray water nozzle divides water flow passage to connect the main water flow passage of high pressure by high pressure, the top often organizing wing is provided with diamond composite sheet, a high pressure point water flow passage comprises catch basin, vertical distributive pipe and side distributive pipe, catch basin connects the main water flow passage of high pressure, catch basin top is provided with vertical distributive pipe and side distributive pipe, the sidewall of vertical distributive pipe is provided with many group sides distributive pipe, the beneficial effects of the utility model are: integral type oil drilling PDC drill bit, in process of production, optimizes processing technology, and the minimizing working joint time welds with drill bit, ensure that precision and quality.
Description
Technical field
The utility model relates to a kind of drill bit, particularly the special PDC drill bit of a kind of integral type oil drilling.
Background technology
In recent years, between, the quality of PDC cutting teeth and type all there occurs huge change.If the tooth of the eighties in 20th century and current tooth compared, difference is sizable.Due to the change of hybrid technique and manufacturing process, the capability and performance of current cutting teeth is far better, and the Anti-erosion of drill bit and impact resistance are all greatly improved.Engineers is also optimized the interface between tungsten carbide substrate and diamond, to improve the toughness of cutting teeth.The innovation of stratiform diamond process aspect is also used to the erosion resistance and the heat stability that improve product.Except the development of material and manufacturing process aspect, PDC product also achieves great breakthrough in the designing technique and cloth tooth of tooth.Now, not applicable area before PDC product can be used to, as the stratum harder, abrasion is stronger and changeable.This to the expansion in frontier, very large impact be there occurs on diamond (fixing cutting teeth) balance between drill bit and rock bit.At first, PDC drill bit can only be used in soft shale stratum, and reason is that hard interlayer can damage drill bit.But due to the appearance of new technology and the change of structure, current PDC drill bit can be used in boring the ground consisting of hard rock of hard interbedded layer and long section.PDC drill bit is just more and more selected by people, and improving constantly particularly along with PDC dentine amount, this situation highlights all the more.Due to the improvement of drill bit design and tooth, the orientability of PDC drill bit also improves thereupon, and this weakens over the advantage of in motor drilling well rock bit further.
At present, PDC drill bit all supplants the market of rock bit every day in the DRILLING APPLICATION on many stratum.PDC drill bit is primarily of compositions such as bit body, cutting teeth, nozzle and joints.Owing to being be welded to connect between bit body and joint, and welding is the rapid heating and cooling process of a local, and weld zone can not free wxpansion and contraction due to restraining of surrounding workpiece body, just produces welding stress and distortion after cooling in weldment.The intensity of joint except affecting by weldquality, also with its geometry, dimensional accuracy, stressing conditions, surface blemishes, pore slag inclusion, crackle, not through welding, incomplete fusion etc. shortcoming.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of integral type oil drilling special PDC drill bit, drill bit rational in infrastructure, and cost of manufacture is low, saves the problem that welding is taken to, easily obtains large-scale promotion and uses.
Its technical scheme is: comprise chip area, wing, drill body, connecting thread, mark groove, high pressure spray water nozzle, diamond composite sheet, high pressure divides water flow passage, the main water flow passage of high pressure, the bottom of drill body is provided with connecting thread, drill body top is provided with organizes wing more, the outer wall of drill body is provided with mark groove, the inside of drill body is provided with the main water flow passage of high pressure and high pressure point water flow passage, chip area is provided with between two groups of wings, high pressure spray water nozzle is provided with at the root position often organizing wing, described high pressure spray water nozzle divides water flow passage to connect the main water flow passage of high pressure by high pressure, the top often organizing wing is provided with diamond composite sheet, a high pressure point water flow passage comprises catch basin, vertical distributive pipe and side distributive pipe, catch basin connects the main water flow passage of high pressure, catch basin top is provided with vertical distributive pipe and side distributive pipe, the sidewall of vertical distributive pipe is provided with many group sides distributive pipe.
Angle between above-mentioned vertical distributive pipe and side distributive pipe is 60 degree.
Above-mentioned catch basin is pyramidal structure.
Above-mentioned diamond composite sheet is protruding cone shape.
The beneficial effects of the utility model are: integral type oil drilling PDC drill bit, in process of production, optimize processing technology, the minimizing working joint time welds with drill bit, ensure that precision and quality, strengthen the bonding strength between drill bit and joint, improve production efficiency, thus the application life of the drill bit extended, rational in infrastructure, cost of manufacture is low, easily obtains large-scale promotion and uses.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is top views of the present utility model;
Accompanying drawing 3 is sectional views of the present utility model;
Accompanying drawing 4 is structure for amplifying schematic diagrames of steel stone composite sheet;
In upper figure: chip area 1, wing 2, drill body 3, connecting thread 4, mark groove 5, high pressure spray water nozzle 6, diamond composite sheet 7, high pressure divide water flow passage 8, high pressure main water flow passage 9; Catch basin 8.1, vertical distributive pipe 8.2, side distributive pipe 8.3.
Detailed description of the invention
1-4 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises chip area 1, wing 2, drill body 3, connecting thread 4, mark groove 5, high pressure spray water nozzle 6, diamond composite sheet 7, high pressure divides water flow passage 8, the main water flow passage 9 of high pressure, the bottom of drill body 3 is provided with connecting thread 4, drill body 3 top is provided with many group wings 2, the outer wall of drill body 3 is provided with mark groove 5, the inside of drill body 3 is provided with the main water flow passage 9 of high pressure and high pressure point water flow passage 8, chip area 1 is provided with between two groups of wings 2, high pressure spray water nozzle 6 is provided with at the root position often organizing wing 4, described high pressure spray water nozzle 6 connects the main water flow passage 9 of high pressure by high pressure point water flow passage 8, the top often organizing wing 4 is provided with diamond composite sheet 7, high pressure point water flow passage 8 comprises catch basin 8.1, vertical distributive pipe 8.2 and side distributive pipe 8.3, catch basin 8.1 connects the main water flow passage 9 of high pressure, catch basin 8.1 top is provided with vertical distributive pipe 8.2 and side distributive pipe 8.3, the sidewall of vertical distributive pipe 8.2 is provided with many group sides distributive pipe 8.3.
Wherein, the angle between vertical distributive pipe 8.2 and side distributive pipe 8.3 is 60 degree, improves jeting effect; Catch basin 8.1 is pyramidal structure, is convenient to flushing liquor and sprays, improve ejection efficiency.
In addition, diamond composite sheet 7 is protruding cone shape, improves stock-removing efficiency.
Operating principle of the present utility model is: when using work, oil drilling PDC drill bit, is to rely on the diamond compact 8 be arranged on wing 2 to cut stratum.Inner chamber is provided with high pressure point water flow passage 8, the main water flow passage 9 of high pressure, is communicated with respectively with the high pressure spray water nozzle 7 of drill body end.Under the drive of oil helicoid hydraulic motor and gravity, rely on the diamond compact 8 be arranged on wing 2 to cut stratum, the main water flow passage 9 of high pressure connects high pressure spray water nozzle 7 through high-pressure shunting road 8, silt is cleaned out in time, innovation due to one-piece drill bit eliminate welding be with defect, strengthen the intensity of integral type PDC drill bit.
Integral type oil drilling PDC drill bit, in process of production, optimize processing technology, the minimizing working joint time welds with drill bit, ensure that precision and quality, strengthen the bonding strength between drill bit and joint, improve production efficiency, thus the application life of the drill bit extended, rational in infrastructure, cost of manufacture is low, easily obtains large-scale promotion and uses.
Claims (4)
1. the special PDC drill bit of integral type oil drilling, it is characterized in that: comprise chip area (1), wing (2), drill body (3), connecting thread (4), mark groove (5), high pressure spray water nozzle (6), diamond composite sheet (7), high pressure divides water flow passage (8), the main water flow passage of high pressure (9), the bottom of drill body (3) is provided with connecting thread (4), drill body (3) top is provided with organizes wing (2) more, the outer wall of drill body (3) is provided with mark groove (5), the inside of drill body (3) is provided with the main water flow passage of high pressure (9) and high pressure point water flow passage (8), chip area (1) is provided with between two groups of wings (2), high pressure spray water nozzle (6) is provided with at the root position often organizing wing (4), described high pressure spray water nozzle (6) divides water flow passage (8) to connect the main water flow passage of high pressure (9) by high pressure, the top often organizing wing (4) is provided with diamond composite sheet (7), high pressure point water flow passage (8) comprises catch basin (8.1), vertical distributive pipe (8.2) and side distributive pipe (8.3), catch basin (8.1) connects the main water flow passage of high pressure (9), catch basin (8.1) top is provided with vertical distributive pipe (8.2) and side distributive pipe (8.3), the sidewall of vertical distributive pipe (8.2) is provided with many groups side distributive pipe (8.3).
2. the special PDC drill bit of integral type oil drilling according to claim 1, is characterized in that: the angle between described vertical distributive pipe (8.2) and side distributive pipe (8.3) is 60 degree.
3. the special PDC drill bit of integral type oil drilling according to claim 1, is characterized in that: described catch basin (8.1) is pyramidal structure.
4. the special PDC drill bit of integral type oil drilling according to claim 1, is characterized in that: described diamond composite sheet (7) is protruding cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274336.7U CN204591153U (en) | 2015-04-30 | 2015-04-30 | The special PDC drill bit of integral type oil drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274336.7U CN204591153U (en) | 2015-04-30 | 2015-04-30 | The special PDC drill bit of integral type oil drilling |
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| Publication Number | Publication Date |
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| CN204591153U true CN204591153U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520274336.7U Active CN204591153U (en) | 2015-04-30 | 2015-04-30 | The special PDC drill bit of integral type oil drilling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916894A (en) * | 2017-12-06 | 2018-04-17 | 郑州神利达钻采设备有限公司 | A kind of diamond bit and its application method based on sandwich construction |
-
2015
- 2015-04-30 CN CN201520274336.7U patent/CN204591153U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916894A (en) * | 2017-12-06 | 2018-04-17 | 郑州神利达钻采设备有限公司 | A kind of diamond bit and its application method based on sandwich construction |
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