CN204920804U - Pregnant blade formula drill bit of inlaying - Google Patents
Pregnant blade formula drill bit of inlaying Download PDFInfo
- Publication number
- CN204920804U CN204920804U CN201520611022.1U CN201520611022U CN204920804U CN 204920804 U CN204920804 U CN 204920804U CN 201520611022 U CN201520611022 U CN 201520611022U CN 204920804 U CN204920804 U CN 204920804U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- wing
- blade
- pregnant
- inlaying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a pregnant blade formula drill bit of inlaying belongs to the drill bit and makes technical field. It is equipped with the pregnant blade of inlaying including joints, drill bit body, hydrophthalmia, wing and rule footpath on the wing, pregnant inlay fire or weld after the blade is fixed a position through boss and recess with the wing as an organic whole. The utility model discloses increase substantially the life of the wearability of drill bit, mechanical drilling speed and drill bit. All can effectively creep into in the very strong bad ground, cut the stratum in crisscross frequent, the abrasiveness in stratum and impact nature, widen the adaptability of drill bit to the bad ground. Reduce drilling operation's cycle, practiced thrift the drilling cost. Compressive capacity is big, the fastness to wear is strong, shock resistance is better, can creep into fast, can guarantee again can guarantee the longer life when meetting medium ground or intermediate layer, improve the practicality. Not only guarantee higher machine speed in the mud stone, when running into sandstone and conglomerate, its impact resistance and anti abrasiveness all are higher than the carbide blade.
Description
Technical field
The utility model relates to a kind of drill bit, especially the rotary drilling drill bit of oil, geology, belongs to drill bit manufacturing technology field.
Background technology
At present, carry out in drillng operation in the field such as oil, geological prospecting, drag bit, at the mud stone of drillability 1 ~ 4 grade, has very high rate of penetration in the soft formations such as shale, thus uses extensively.
Blade type drag bit, the positive rake that cutting angle adopts, shearing force is comparatively large, and when cutting stratum, efficiency is very high, meanwhile, also can be subject to very large reaction torque.
But conventional doctor drill tip is carbide chip, abrasion resistance and the impact resilience of this blade are poor, so bit life is very short.Consider blade strength problem, in drilling process, the pressure of the drill of applying is also relatively little, and in soft formation, the shearing force of cutting needed for stratum is relatively little, and not strong to drill bit destructiveness, carbide chip can also work well.But in the interlayer staggered compared with hard formation and soft or hard, blade type drag bit cannot effective wedging stratum under low the pressure of the drill, under high the pressure of the drill, very greatly, blade can very quick-wearing, considerably increases drilling well difficulty and cost for shearing force.
Utility model content
For the problems referred to above, the utility model provides a kind of impregnated blade type drill bit.
The utility model solves the technical scheme that its technical problem adopts: impregnated blade type drill bit, comprise joint, drill body, hydrophthalmia, wing and rule footpath, wing is provided with impregnated blade, and impregnated blade and wing are fired after being located by boss and groove or be welded as a whole.
The beneficial effects of the utility model are, increase substantially the application life of the abrasion resistance of drill bit, rate of penetration and drill bit.Interlock frequently on stratum, can effectively creep in abrasiveness and all very strong bad ground of impact, cut stratum, widened the adaptive capacity of drill bit to bad ground.Reduce the cycle of drillng operation, save drilling cost.Anti-pressure ability is large, abrasion-resistance is strong, impact resistance is better; Can fast drilling, ensureing again can ensure longer life when running into medium ground or interlayer, improving practicality.Not only in mud stone, ensure higher machine speed, when running into sandstone and conglomerate, its impact resistance and abrasive resistant are all higher than carbide chip.
Accompanying drawing explanation
Fig. 1 is that the utility model (the straight knife wing) master looks vertical profile stereogram;
Fig. 2 is the top view of 1;
Fig. 3 is that the utility model (spiral wing) master looks vertical profile stereogram;
Fig. 4 is the top view of 3;
The impregnated blade 5 of Fig. 5 and wing 3 syndeton schematic diagram;
Component and numbering in figure:
1-joint, 2-drill body, 3-wing, 4-rule footpath, 5-impregnated blade, 6-hydrophthalmia.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is further illustrated.
See Fig. 1-5, impregnated blade type drill bit, comprise joint 1, drill body 2, hydrophthalmia 6, wing 3 and rule footpath 4, wing 3 is provided with impregnated blade 5, and impregnated blade 5 is fired after being located by boss and groove with wing 3 or is welded as a whole.
Impregnated blade 5 is circular or oval.Impregnated blade can be sectional type or monolithic; Specifically determine according to blade contour and production technology.Wing 3 is the straight knife wing or spiral wing.Rule footpath 4 is circle, strip or triangle.
Joint 1 and drill body 2 by after screwed connection, then weld.On wing 3, adopt impregnated blade 5 as cutting structure.Impregnated blade 5 can be dentation or zigzag with wing 3 syndeton.
Rule footpath 4 place of wing 3 can add high-abrasive material, and as glomerocryst and carbide alloy etc., shape is circle, strip, triangle etc.
Impregnated is configured according to a certain percentage by natural diamond, artificial single crystal's diamond or any polycrystalline diamond and corresponding carbide powder, or is arranged in metal dust to fire by certain way by polycrystalline diamond and forms.The integrative-structure that impregnated blade and wing are formed can when making one piece fire and form, also can be welded on wing.
Steel body formula drag bit, (separate by solder bond together with) that wing and drill body can be an entirety or separate.Impregnated blade hypomere has boss, fluted on wing body, and impregnated blade and drill bit wing are welded together after being located by boss and groove, as shown in Figure 5.And weldering high-abrasive material is covered at footpath place on rule.
Matrix-type drag bit, wing and drill body are all alloy carbide tungsten powder compositions, and impregnated blade and alloy carbide tungsten powder put into sintering mold relevant position, put into agglomerating furnace, sinter impregnated blade and drill bit wing into an entirety.
Impregnated blade can apply on the drill bit of various sizes, also can apply on coring bit and on the drag bit of engineering construction.
Claims (4)
1. an impregnated blade type drill bit, comprise joint (1), drill body (2), hydrophthalmia (6), wing (3) and rule footpath (4), it is characterized in that, wing (3) is provided with impregnated blade (5), and impregnated blade (5) and wing (3) are fired after being located by boss and groove or be welded as a whole.
2. impregnated blade type drill bit according to claim 1, is characterized in that, described impregnated blade (5) is circular or oval.
3. impregnated blade type drill bit according to claim 1, is characterized in that, described wing (3) is the straight knife wing or spiral wing.
4. impregnated blade type drill bit according to claim 1, is characterized in that, described rule footpath (4) is circle, strip or triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520611022.1U CN204920804U (en) | 2015-08-13 | 2015-08-13 | Pregnant blade formula drill bit of inlaying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520611022.1U CN204920804U (en) | 2015-08-13 | 2015-08-13 | Pregnant blade formula drill bit of inlaying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920804U true CN204920804U (en) | 2015-12-30 |
Family
ID=54969941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520611022.1U Active CN204920804U (en) | 2015-08-13 | 2015-08-13 | Pregnant blade formula drill bit of inlaying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204920804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327275A (en) * | 2017-09-11 | 2017-11-07 | 张家港钻通设备有限公司 | A kind of diamond bit that broad spectrum activity is adapted to stratum |
| CN112211559A (en) * | 2020-11-20 | 2021-01-12 | 大庆石油管理局有限公司 | Modular assembly type steel PDC drill bit |
-
2015
- 2015-08-13 CN CN201520611022.1U patent/CN204920804U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327275A (en) * | 2017-09-11 | 2017-11-07 | 张家港钻通设备有限公司 | A kind of diamond bit that broad spectrum activity is adapted to stratum |
| CN112211559A (en) * | 2020-11-20 | 2021-01-12 | 大庆石油管理局有限公司 | Modular assembly type steel PDC drill bit |
| CN112211559B (en) * | 2020-11-20 | 2023-12-22 | 大庆石油管理局有限公司 | Modular assembled steel PDC drill bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207728311U (en) | A kind of diamond compact | |
| CN103510859B (en) | Creep into the module cutter drill bits that specific pressure is controlled | |
| CN105156035B (en) | A kind of oscillating tooth PDC drill bit | |
| CN102434105A (en) | Composite bit with rotary cut rock-breaking function | |
| CN203081445U (en) | Polycrystalline diamond rotary digging machine cutting pick | |
| CN102852462B (en) | Composite inserted tooth blade type diamond comprehensive drill bit | |
| CN204920804U (en) | Pregnant blade formula drill bit of inlaying | |
| CN203452651U (en) | Strong cone PDC (Polycrystalline Diamond Compact) vibration reduction acceleration drill bit | |
| CN104727752A (en) | Polycrystalline diamond composite tooth and manufacturing method thereof as well as drill bit | |
| CN105257218A (en) | Self-propelling drill bit | |
| CN202441267U (en) | Combined drill bit having rock-breaking function through rotary cutting | |
| CN201314198Y (en) | Polycrystalline diamond composite sheet | |
| CN208122763U (en) | A kind of diameter changing drilling tool | |
| CN202900052U (en) | Double-acting ultrahard strong lateral-cutting window-opening drill bit with composite teeth | |
| CN202441259U (en) | Combined drill bit formed by rotary-cutting drill bit and cone drill bit | |
| CN203756042U (en) | Step type gauge drill bit | |
| CN103437713A (en) | Self-sharpening type ring tooth impregnated diamond drill bit | |
| CN203050523U (en) | Ploughing type diamond bit | |
| CN103343667B (en) | A kind of tooth cave fluid erosion prevention steel body PDC drill bit | |
| CN208024278U (en) | A kind of drill bit for inlaying impregnated diamond composite block | |
| CN205713983U (en) | A kind of stirring drill tool | |
| CN201679451U (en) | Cambered surface PDC (polycrystalline diamond compact) | |
| CN207245624U (en) | A kind of multi-tool edge diamond compact drilling teeth | |
| CN201835753U (en) | Polycrystalline diamond compact for rock-breaking tool for drilling | |
| CN103362444A (en) | Drill for cutting-grinding wing type oil and gas drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |