CN203403824U - PDC bit - Google Patents
PDC bit Download PDFInfo
- Publication number
- CN203403824U CN203403824U CN201320378581.3U CN201320378581U CN203403824U CN 203403824 U CN203403824 U CN 203403824U CN 201320378581 U CN201320378581 U CN 201320378581U CN 203403824 U CN203403824 U CN 203403824U
- Authority
- CN
- China
- Prior art keywords
- wing
- blades
- bit
- drill bit
- main
- 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.)
- Expired - Fee Related
Links
- 230000036346 tooth eruption Effects 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000009828 non-uniform distribution Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 18
- 230000009918 complex formation Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 241000662429 Fenerbahce Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a PDC bit. In order to overcome the shortcomings of low drilling speed and unstable work of a bit in drilling in a hard and soft complex formation, two main blades and side blades are arranged at the front end part of the bit crown provided by the utility model, wherein the main blades and the side blades are not uniformly distributed. The side blades are arranged between two main blades. Cutting teeth are fixedly arranged on the main blades and the side blades. A lithic flow channel is between adjacent blades. A faucet is arranged on each lithic flow channel along the axial direction of the bit body. The shoulders of two main blades are arranged at 180 degrees on the front end face of the bit crown. Two side blades are respectively arranged between two main blades. The angle of the side of the lithic flow channel between adjacent blades is 20 degrees to 35 degrees. A single row of cutting teeth is fixedly arranged on each main blade and each side blade. The caster angle of each main cutting tooth near the core is less than the caster angle of each side cutting tooth near the shoulder. The main blades and the side blades have the same width. The PDC bit has the advantages of reasonable structure and stable work. The service life of the bit is effectively prolonged, and the drilling cost is reduced.
Description
Technical field
The utility model relates to the rock crushing tool drill bit that a kind of oil drilling, geological prospecting, oil field development creep into, and especially relates to a kind of PDC drill bit.
Background technology
In the staggered troublesome zone drilling of soft or hard, conventionally adopt rock bit and the construction of common PDC drill bit, rock bit drilling speed is low, the work of PDC drill bit is not steady, cutting teeth diamond layer in earlier stage collapse damage serious, drilling depth is few, causes the drillng operation cycle long, drilling cost is high.
Utility model content
In order to overcome, the drill bit drilling speed existing in the staggered troublesome zone drilling of soft or hard is low, the deficiency of job insecurity, and the utility model provides a kind of PDC drill bit, and this PDC drill bit is suitable for creeping into of bad ground.
The utility model solves the technical scheme that its technical problem adopts: the bit body front end drill bit of PDC drill bit has been labeled wing, rear end is connecting thread, wing bottom is gauge, gauge teeth is installed in gauge, drill bit hat leading section is provided with 2 operator wings and the secondary wing of non-uniform Distribution, secondary wing is arranged between two operator wings, on the operator wing and secondary wing, be installed with cutting teeth, between adjacent wing, there is landwaste runner, on landwaste runner, along bit body, be axially installed with water nozzle, the shoulder of 2 operator wings is 180 ° of arrangements on drill bit hat front end face, between 2 operator wings, 2 secondary wings are respectively installed, between adjacent wing, the angle of landwaste runner side is 20 °～35 °, .On the operator wing and secondary wing, be installed with single cutting teeth; Main cutting tooth back rake angle near core is less than the back rake angle near the secondary cutting teeth of shoulder.The width dimensions of the operator wing, secondary wing is identical.The width dimensions of the operator wing, secondary wing is 50mm.The water nozzle of axially installing along bit body on landwaste runner is interchangeable water nozzle.
The beneficial effects of the utility model are, rational in infrastructure, stable working is conducive to improve shock resistance and the resistance to nonferromagnetic substance of drill bit, effectively extends the application life of drill bit, reduces drilling cost, meets troublesome zone drilling needs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model PDC drill bit.
In figure: 1. drill bit is preced with, 2. the operate wing, 3. interchangeable water nozzle, 4. landwaste runner, 5. main cutting tooth, 6. secondary cutting teeth, 7. secondary wing.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.But those skilled in the art should know, the invention is not restricted to the listed specific embodiment, as long as spirit according to the invention all should be included in protection scope of the present invention.
Referring to accompanying drawing 1.The utility model PDC drill bit, the drill bit of bit body front end has been labeled wing, rear end is connecting thread, wing bottom is gauge, and gauge teeth is installed in gauge, and drill bit hat leading section is provided with 2 operator wings and the secondary wing of non-uniform Distribution, secondary wing is arranged between two operator wings, on the operator wing and secondary wing, being installed with cutting teeth, is landwaste runner between adjacent wing, on landwaste runner, along bit body, is axially installed with water nozzle.The shoulder of 2 operator wings 2 is preced with on 1 front end face and is 180 ° of arrangements at drill bit, between 2 operator wings 2,2 secondary wings 7 is respectively installed; Between adjacent wing, the angle of landwaste runner 4 sides is 20 °～35 °.On the operator wing 2 and secondary wing 7, be installed with single cutting teeth; Near main cutting tooth 5 back rake angles of core, be less than the back rake angle near the secondary cutting teeth 6 of shoulder, monorow tooth structure can avoid double rows of teeth structure composite sheet density excessive and affect machine speed, is conducive to improve the shock resistance of drill bit shoulder tooth.The width dimensions of the operator wing 2, secondary wing 7 is identical, and width dimensions is 50mm.
Landwaste runner 4 between adjacent wing is dark, sipes runner, is guaranteeing under the prerequisite of wing intensity, has improved landwaste migration upward velocity, has avoided cutting teeth Repeated Cutting landwaste.The water nozzle of axially installing along bit body on landwaste runner 4 is interchangeable water nozzle 3, and in drilling process, drilling fluid enters by drilling rod inner chamber, through nozzle, sprays to cutting teeth, can be better cooling, rinse on drill bit and more effective cutting carring and return.
The utility model PDC drill bit has overcome in the past in bad ground construction, and drill bit job insecurity, Adamas cutting tooth collapse damage, the long deficiency of drilling period, have improved the stationary performance of drill bit work, have extended the application life of drill bit; Be conducive to improve drill bit shock resistance, grind anti-wear performance, reduce drilling cost, meet troublesome zone drilling needs.
It should be noted that above-described embodiment is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiments and not depart from the claim scope of this patent.
Claims (3)
1. a PDC drill bit, the drill bit of bit body front end has been labeled wing, rear end is connecting thread, and wing bottom is gauge, and gauge teeth is installed in gauge, drill bit hat leading section is provided with 2 operator wings and the secondary wing of non-uniform Distribution, secondary wing is arranged between two operator wings, on the operator wing and secondary wing, is installed with cutting teeth, has landwaste runner between adjacent wing, on landwaste runner, along bit body, be axially installed with water nozzle, it is characterized in that:
The shoulder of described 2 operator wings (2) is preced with on (1) front end face and is 180 ° of arrangements at described drill bit, between 2 operator wings (2), 2 secondary wings (7) is respectively installed; Between adjacent wing, the angle of landwaste runner (4) side is 20 °～35 °;
On the described operator wing (2) and secondary wing (7), be installed with single cutting teeth; Main cutting tooth (5) back rake angle near core is less than the back rake angle near the secondary cutting teeth (6) of shoulder;
The width dimensions of the described operator wing (2), secondary wing (7) is identical.
2. PDC drill bit according to claim 1, is characterized in that: the width dimensions of the described operator wing (2), secondary wing (7) is 50mm.
3. PDC drill bit according to claim 2, is characterized in that: the upper water nozzle of axially installing along bit body of described landwaste runner (4) is interchangeable water nozzle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378581.3U CN203403824U (en) | 2013-06-28 | 2013-06-28 | PDC bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378581.3U CN203403824U (en) | 2013-06-28 | 2013-06-28 | PDC bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403824U true CN203403824U (en) | 2014-01-22 |
Family
ID=49939763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320378581.3U Expired - Fee Related CN203403824U (en) | 2013-06-28 | 2013-06-28 | PDC bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203403824U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835659A (en) * | 2014-03-18 | 2014-06-04 | 西南石油大学 | Drill capable of improving center scraps removal efficiency |
| CN104453724A (en) * | 2014-10-17 | 2015-03-25 | 中国石油天然气集团公司 | Long nozzle alloy bit used for oilfield drilling |
| CN106593311A (en) * | 2015-10-14 | 2017-04-26 | 中国石油天然气股份有限公司 | Drilling tools and methods of use |
| CN108612480A (en) * | 2018-06-29 | 2018-10-02 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of vortex pulse shock drill bit |
-
2013
- 2013-06-28 CN CN201320378581.3U patent/CN203403824U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835659A (en) * | 2014-03-18 | 2014-06-04 | 西南石油大学 | Drill capable of improving center scraps removal efficiency |
| CN103835659B (en) * | 2014-03-18 | 2016-09-07 | 西南石油大学 | A kind of drill bit improving center chip removal efficiency |
| CN104453724A (en) * | 2014-10-17 | 2015-03-25 | 中国石油天然气集团公司 | Long nozzle alloy bit used for oilfield drilling |
| CN106593311A (en) * | 2015-10-14 | 2017-04-26 | 中国石油天然气股份有限公司 | Drilling tools and methods of use |
| CN108612480A (en) * | 2018-06-29 | 2018-10-02 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of vortex pulse shock drill bit |
| CN108612480B (en) * | 2018-06-29 | 2024-06-18 | 中国石油天然气集团有限公司 | Vortex pulse impact drill bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203129956U (en) | Square drill bit of rotating drill | |
| CN202356688U (en) | Twist drill bit cooling structure | |
| CN203403824U (en) | PDC bit | |
| CN205172441U (en) | Directional drilling's PDC drill bit | |
| CN203097722U (en) | Tapered gauge PDC drill bit | |
| CN203347693U (en) | PDC (polycrystalline diamond compact) drill bit with gauge teeth | |
| CN211230253U (en) | Anti-balling drill bit with conical teeth | |
| CN203701989U (en) | Spiral cutter blade steel body PDC drill bit | |
| CN205206745U (en) | PDC drill bit that can broken wall of a well junk | |
| CN203097721U (en) | High-energy percussion rock-breaking PDC (polycrystalline diamond compact) drill bit | |
| CN204024482U (en) | A kind of combined type PDC drill bit | |
| CN201679500U (en) | Rotary digging pick | |
| CN203701983U (en) | Steel body spiral four blade PDC (Polycrystalline Diamond Compact) bit | |
| CN204627420U (en) | Gauge PDC drill bit is strengthened for plasticity mud shale three wing | |
| CN204920809U (en) | Mud drum drill bit is prevented to little hydrophthalmia | |
| CN110158691B (en) | Gear milling and double-wheel milling device | |
| CN202689951U (en) | Detachable geological drill bit | |
| CN108612480B (en) | Vortex pulse impact drill bit | |
| CN203835271U (en) | Novel PDC bit | |
| CN205154034U (en) | Six wing PDC drill bits of deep well | |
| CN204476288U (en) | A kind of anti-Gravel drill bit | |
| CN203701986U (en) | Steel body spiral five blade PDC (Polycrystalline Diamond Compact) bit | |
| CN210163963U (en) | Milling tooth and double-wheel milling device | |
| CN203452652U (en) | PDC (polycrystalline diamond compact) drilling bit | |
| CN209457881U (en) | A kind of PDC drill bit device suitable for gneiss geology |
Legal Events
| 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 |
Granted publication date: 20140122 Termination date: 20200628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |