CN203463019U - Petroleum shale gas well drilling drill bit - Google Patents
Petroleum shale gas well drilling drill bit Download PDFInfo
- Publication number
- CN203463019U CN203463019U CN201320593999.6U CN201320593999U CN203463019U CN 203463019 U CN203463019 U CN 203463019U CN 201320593999 U CN201320593999 U CN 201320593999U CN 203463019 U CN203463019 U CN 203463019U
- Authority
- CN
- China
- Prior art keywords
- gauge
- drill bit
- shale gas
- well drilling
- gauge protection
- 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
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- Earth Drilling (AREA)
Abstract
The utility model relates to a petroleum shale gas well drilling drill bit. The petroleum shale gas well drilling drill bit comprises a drill bit body and a cutter wing, wherein the cutter wing is fixed to the crown head portion of the drill bit body, the drill bit body comprises a gauge protection base body, gauge protection strips are embedded into the outer surface of the base body, sheet diamond composite pieces are embedded into the right sides of the gauge protection strips, the gauge protection strips and the diamond composite pieces are located on the same plane, and the gauge protection strips are hard alloy strips or crystal combination pieces. The petroleum shale gas well drilling drill bit has the advantages that the sheet diamond composite pieces are embedded into the outer surface of the gauge protection base body, the petroleum shale gas well drilling drill bit has the same work performance with a diamond drill bit, the well drilling drill bit can not be rapidly abraded in the diameter direction, it is ensured that the diameter of drilling does not shrink, the gauge protection effect is good, the rock cutting function is added to the diamond composite pieces, a well hole is smooth and mellow after well drilling is conducted, the diamond composite pieces are of a sheet structure and embedded into the gauge protection base body, three to five diamond composite pieces are distributed on the cutter wing in the vertical direction at equal intervals, the service life of the well drilling drill bit is prolonged, and a large number of well drilling expenses can be saved.
Description
Technical field
The utility model relates to a kind of drilling bit, relates in particular to a kind of oil shale gas drilling bit.
Background technology
At present, domestic tradition is for the drill bit of oil shale gas drilling well, and great majority are only inlaid with carbide alloy bar or synneusis sheet at rule position, footpath, and while creeping in soft formation, rate of penetration is fast, and rule position, footpath is not easy to wear.But when creeping into directional well and harder stratum, can accelerate to advise position, footpath Fast Wearing, to losing gauge ability, in drilling process, easily cause hole shrinkage and bit freezing, cause oil shale gas drilling bit early time discards, increase cost of production.The main cause that causes this kind of phenomenon is that carbide alloy bar or the synneusis sheet hardness at rule position, footpath is generally lower, when creeping into shale gas, oil well, if run into formation cementation abrasiveness sandstone and gneissose bottom, carbide alloy bar or synneusis sheet meeting Fast Wearing, thereby make bit gauge protection position Fast Wearing, lose gauge ability.
Utility model content
Technical problem to be solved in the utility model is: a kind of oil shale gas drilling bit is provided, the use that combines with diamond compact of carbide alloy bar or synneusis sheet, while running into formation cementation abrasiveness sandstone and gneissose bottom, solve bit gauge protection position Fast Wearing phenomenon, guarantee not undergauge of drilling well, but also having increased the function of rock cutting, after drilling well, well is smooth mellow and full.
The utility model is that the technical scheme that the problem of the above-mentioned proposition of solution adopts is:
A kind of oil shale gas drilling bit, comprise bit body 1 and wing 2, bit body 1 crown head partial fixing wing 2, described bit body 1 comprises gauge matrix 3, on gauge matrix 3 external surfaces, be inlaid with gauge bar 4, gauge bar 4 right sides are inlaid with sheet diamond compact 5, and gauge bar 4 is positioned at same plane with diamond compact 5, and described gauge bar 4 is carbide alloy bar or synneusis sheet.
On described gauge matrix 3 external surfaces, be inlaid with 10～12 gauge bars 4, according to the physical length of gauge matrix 3, inlay the gauge bar 4 of different numbers, at utmost protect bit body 1 not to be worn.
On described gauge matrix 3 external surfaces, be inlaid with 10 gauge bars 4.
On described gauge matrix 3 external surfaces, along 3～5 diamond compacts 5 that are vertically equally spaced, according to the physical length of gauge matrix 3, inlay the diamond compact 5 of different numbers, at utmost protect bit body 1 not to be worn.
On described gauge matrix 3 external surfaces along being vertically equally spaced 4 diamond compacts 5, can be cost-saving, bit body 1 can obtain abundant covering protection again.
Described wing 2 is 76mm～156mm apart from the centre distance of bit body 1, is applicable to the drilling bit of different-diameter.
Operating principle of the present utility model: bit body crown head partial fixing wing, on the gauge outer surface of matrix of bit body, be inlaid with gauge bar, gauge bar is any one in carbide alloy bar or synneusis sheet, gauge bar right side is inlaid with sheet diamond compact, gauge bar and diamond compact are positioned at same plane, in normal drilling process, when bit body is met compared with hard formation, diamond compact energy rock cutting, can effectively prevent the footpath wearing and tearing of bit body rule, and can play auxiliary gauge effect, strengthened gauge ability, drilling well is undergauge not, reduced the generation of bit freezing phenomenon.
The beneficial effects of the utility model are: 1, on gauge outer surface of matrix, be inlaid with sheet diamond compact, there is the service behaviour that same diamond bit is equally good, guarantee that drilling bit diameter is not by Fast Wearing, guarantee not undergauge of drilling well, gauge is effective, but also having increased the function of diamond compact rock cutting, after drilling well, well is smooth mellow and full.2, diamond compact is laminated structure, is embedded on gauge matrix, only needs along being vertically equally spaced 3～5 diamond compacts on a wing, extends drilling bit application life, can save a large amount of drilling costs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1-bit body, 2-wing, 3-gauge matrix, 4-gauge bar, 5-diamond compact.
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate embodiment of the present utility model.
With reference to Fig. 1, a kind of oil shale gas drilling bit described in this specific embodiment, comprise bit body 1 and wing 2, bit body 1 crown head partial fixing wing 2, described bit body 1 comprises gauge matrix 3, on gauge matrix 3 external surfaces, is inlaid with gauge bar 4, and gauge bar 4 right sides are inlaid with sheet diamond compact 5, gauge bar 4 is positioned at same plane with diamond compact 5, and described gauge bar 4 is carbide alloy bar or synneusis sheet.
On described gauge matrix 3 external surfaces, be inlaid with 10 gauge bars 4, can be cost-saving, bit body 1 can obtain abundant covering protection again.
On described gauge matrix 3 external surfaces along being vertically equally spaced 4 diamond compacts 5, can be cost-saving, bit body 1 can obtain abundant covering protection again.
Described wing 2 is 76mm apart from the centre distance of bit body 1.
The operating principle of this specific embodiment: bit body crown head partial fixing wing, on the gauge outer surface of matrix of bit body, be inlaid with gauge bar, gauge bar is any one in carbide alloy bar or synneusis sheet, gauge bar right side is inlaid with sheet diamond compact, gauge bar and diamond compact are positioned at same plane, in normal drilling process, when bit body is met compared with hard formation, diamond compact energy rock cutting, can effectively prevent the footpath wearing and tearing of bit body rule, and can play auxiliary gauge effect, strengthened gauge ability, drilling well is undergauge not, reduced the generation of bit freezing phenomenon.
The beneficial effect of this specific embodiment is: 1, on gauge outer surface of matrix, be inlaid with sheet diamond compact, there is the service behaviour that same diamond bit is equally good, guarantee that drilling bit diameter is not by Fast Wearing, guarantee not undergauge of drilling well, gauge is effective, but also having increased the function of diamond compact rock cutting, after drilling well, well is smooth mellow and full.2, diamond compact is laminated structure, is embedded on gauge matrix, only needs along being vertically equally spaced 3～5 diamond compacts on a wing, extends drilling bit application life, can save a large amount of drilling costs.
Specific embodiment of the utility model does not form restriction of the present utility model, and every employing analog structure of the present utility model and variation, all in protection domain of the present utility model.
Claims (6)
1. an oil shale gas drilling bit, comprise bit body (1) and wing (2), bit body (1) crown head partial fixing wing (2), it is characterized in that: described bit body (1) comprises gauge matrix (3), on gauge matrix (3) external surface, be inlaid with gauge bar (4), gauge bar (4) right side is inlaid with sheet diamond compact (5), gauge bar (4) is positioned at same plane with diamond compact (5), and described gauge bar (4) is carbide alloy bar or synneusis sheet.
2. a kind of oil shale gas drilling bit as claimed in claim 1, is characterized in that: on described gauge matrix (3) external surface, be inlaid with 10～12 gauge bars (4).
3. a kind of oil shale gas drilling bit as claimed in claim 2, is characterized in that: on described gauge matrix (3) external surface, be inlaid with 10 gauge bars (4).
4. a kind of oil shale gas drilling bit as claimed in claim 1, is characterized in that: on described gauge matrix (3) external surface along 3～5 diamond compacts (5) that are vertically equally spaced.
5. a kind of oil shale gas drilling bit as claimed in claim 4, is characterized in that: on described gauge matrix (3) external surface along 4 diamond compacts (5) that are vertically equally spaced.
6. a kind of oil shale gas drilling bit as claimed in claim 1, is characterized in that: described wing (2) is 76mm～156mm apart from the centre distance of bit body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593999.6U CN203463019U (en) | 2013-09-11 | 2013-09-11 | Petroleum shale gas well drilling drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593999.6U CN203463019U (en) | 2013-09-11 | 2013-09-11 | Petroleum shale gas well drilling drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463019U true CN203463019U (en) | 2014-03-05 |
Family
ID=50175391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320593999.6U Expired - Fee Related CN203463019U (en) | 2013-09-11 | 2013-09-11 | Petroleum shale gas well drilling drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868585A (en) * | 2018-07-30 | 2018-11-23 | 天津立林石油机械有限公司 | Gauge cutting type driving-shaft assembly |
-
2013
- 2013-09-11 CN CN201320593999.6U patent/CN203463019U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868585A (en) * | 2018-07-30 | 2018-11-23 | 天津立林石油机械有限公司 | Gauge cutting type driving-shaft assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20160911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |