CN2886062Y - Large-diameter diamond composite core bit - Google Patents
Large-diameter diamond composite core bit Download PDFInfo
- Publication number
- CN2886062Y CN2886062Y CN 200520031467 CN200520031467U CN2886062Y CN 2886062 Y CN2886062 Y CN 2886062Y CN 200520031467 CN200520031467 CN 200520031467 CN 200520031467 U CN200520031467 U CN 200520031467U CN 2886062 Y CN2886062 Y CN 2886062Y
- Authority
- CN
- China
- Prior art keywords
- diamond
- heavy caliber
- core barrel
- coring bit
- drilling
- 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 - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
A large-caliber diamond complex core bit comprises a drilling rod (1) of the complex core bit, which connects with a drilling machine, connects with a large caliber core barrel (4) whose diameter is 615mm. The large caliber core barrel is welded with a plurality of diamond compacts (5, 6) at the bottom thereof. Drain holes (7) are disposed between the welded diamond compacts. A plurality of gauge alloy blocks (8) are respectively provided on the upper and the lower end of the large caliber core barrel which is connected with a calyces (2) at the back thereof. A plurality of strengthening board-ribs (3) is welded between a short drilling rod (1) and the wall of the large caliber core barrel. The device is suitable for drilling the hard formation and high in core recovery percentage and drilling efficiency, and promotes the technical level of the large caliber core drilling exploration.
Description
Technical field:
The utility model relates to prospecting, bores pick field of engineering technology, a kind of heavy caliber diamond complex coring bit.
Background technology:
At present, the heavy caliber core drilling, unique application be that steel grit creeps into, " Hydraulic and Hydro-Power Engineering probing rules " regulation: " the large-diameter steel shot bit is suitable for competent bed, the comprehensive reverse circulation drilling of carbide hob head be applicable to loose, soft or in hard rock stratum ".The large-diameter steel shot bit, drilling technology technology falls behind, and it is of poor quality to get core, and drilling efficiency is low, and very easily drilling accident occurs.Existing diamond drilling technology advanced person, but only be applied in, small-bore probing, its maximum diamond bit diameter has only 225 millimeters, can't realize the core drilling of diameter more than 600 millimeters.
Summary of the invention:
Fall behind for overcoming large-diameter steel shot bit drilling technology technology, it is of poor quality to get core, drilling efficiency is low, be prone to the problem of drilling accident, a kind of heavy caliber diamond complex of the utility model coring bit, be applicable to creeping into of competent bed, core recovery and the efficient height that creeps into improve the technical level of heavy caliber core drilling.
For achieving the above object, the utility model adopts following technical scheme:
Described heavy caliber diamond complex coring bit is integrated integrated by diamond bit, core barrel and sediment tube.
Described heavy caliber diamond complex coring bit, welding-on has several diamond composite block in the drill bit bottom, is provided with the mouth of a river between the diamond composite block of welding-on; Near upper and lower end, designing welding-on respectively has several to protect the footpath alloy block at bit body; Connecting a sediment tube in the upper end of heavy caliber core barrel; Welding stiffener muscle between drilling rod and the heavy caliber core barrel tube wall.
Described heavy caliber diamond complex coring bit, its diamond composite block shape is cuboid arc piece, and diamond composite block top is diamond carcass piece, and the bottom is the alloy supporter.
Described heavy caliber diamond complex coring bit, diamond carcass piece upper end is provided with equally distributed dimond synneusis piece, is provided with the column alloy block between the dimond synneusis piece.
Owing to adopt aforesaid technical scheme, the utlity model has following superiority:
This heavy caliber diamond complex coring bit makes it can finish diameter and reaches creeping into of competent bed in the above geological prospecting of 600mm, and core recovery and the efficient height that creeps into have improved the technical level of heavy caliber core drilling.
Because its diamond complex coring bit has adopted the structure of welding-on diamond composite block, its abrasion resistance, durability significantly improves.Prolong application life greatly, in ancient virtuous key water control project worker in the Yellow River and construction, crept into two dark 60 meters, the exploratory hole of diameter 615mm, and the drilling efficiency height, the core recovery height has obtained geological information really and accurately.
Description of drawings:
Fig. 1 is the structural representation of heavy caliber diamond complex coring bit;
Fig. 2 is the structural representation of diamond composite block;
Among the figure: the 1-short drill pipe; The 2-sediment tube; 3-stiffener muscle; The 4-core barrel; 5,6-diamond composite block; The 7-mouth of a river; 8-protects the footpath alloy block; 9-dimond synneusis piece; 10-column alloy block; 11-diamond carcass piece; 12-alloy supporter.
Specific embodiment:
As shown in Fig. 1,2: this heavy caliber diamond complex coring bit, its drilling rod that is connected with rig are connecting the heavy caliber core barrel (4) that a diameter is 615mm; The bottom welding-on of its heavy caliber core barrel has several diamond composite block (5,6), is provided with the mouth of a river (7) between every welding-on diamond composite block; Upper and lower end at the heavy caliber core barrel is respectively equipped with several guarantor footpath alloy blocks (8); Connecting a sediment tube (2) in the rear end of heavy caliber core barrel; Welding several stiffener muscle (3) between short drill pipe (1) and the heavy caliber core barrel tube wall.Its diamond composite block shape is cuboid arc piece, and diamond composite block top is diamond carcass piece (11), and the bottom is alloy supporter (12).Diamond carcass piece upper end end face is provided with equally distributed dimond synneusis piece (9), is provided with column alloy block (10) between the dimond synneusis piece.
During use, the short drill pipe on the heavy caliber diamond complex coring bit connects the rig kelly through drill string, and when rotating, several diamond composite block on the heavy caliber diamond complex coring bit are rotated the gram coring on competent bed; Flushing liquor cools off drill bit and flushing rock dust by the mouth of a river on the heavy caliber diamond complex coring bit; Footpath alloy block protection heavy caliber core barrel and drilling tool guiding are protected in glomerocryst piece and column alloy grinding rock and the inside and outside footpath of protection complex.
Claims (3)
1, a kind of heavy caliber diamond complex coring bit is characterized in that: described complex coring bit, its drilling rod that is connected with rig (1) are connecting the heavy caliber core barrel (4) that a diameter is 615mm; The bottom welding-on of its heavy caliber core barrel has several diamond composite block (5,6), is provided with the mouth of a river (7) between every welding-on diamond composite block; Upper and lower end at the heavy caliber core barrel is respectively equipped with several guarantor footpath alloy blocks (8); Connecting a sediment tube (2) in the rear end of heavy caliber core barrel; Welding several stiffener muscle (3) between short drill pipe (1) and the heavy caliber core barrel tube wall.
2, heavy caliber diamond complex coring bit as claimed in claim 1, it is characterized in that: described complex coring bit, diamond composite block shape is cuboid arc piece, and diamond composite block top is diamond carcass piece (11), and the bottom is alloy supporter (12).
3, heavy caliber diamond complex coring bit as claimed in claim 2, it is characterized in that: described complex coring bit, diamond carcass piece upper end end face is provided with equally distributed dimond synneusis piece (9), is provided with column alloy block (10) between the dimond synneusis piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031467 CN2886062Y (en) | 2005-08-09 | 2005-08-09 | Large-diameter diamond composite core bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520031467 CN2886062Y (en) | 2005-08-09 | 2005-08-09 | Large-diameter diamond composite core bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886062Y true CN2886062Y (en) | 2007-04-04 |
Family
ID=37961152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520031467 Expired - Lifetime CN2886062Y (en) | 2005-08-09 | 2005-08-09 | Large-diameter diamond composite core bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886062Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672892A (en) * | 2016-03-05 | 2016-06-15 | 丁栋 | PDC drill bit of rotary drilling rig |
-
2005
- 2005-08-09 CN CN 200520031467 patent/CN2886062Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672892A (en) * | 2016-03-05 | 2016-06-15 | 丁栋 | PDC drill bit of rotary drilling rig |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104295232A (en) | Single-action double-pipe coring overburden drill tool for air down-the-hole hammer | |
| CN106639870B (en) | A kind of drilling and forming hole technique of embedded rock pile | |
| CN205047162U (en) | Oil drill bit | |
| CN102747952B (en) | Hydraulic walking type percussion reverse circulation slot repairing machine | |
| CN206091882U (en) | Formula down --hole hammer drill tied in a bundle advances to use polycrystalline diamond down --hole drill bit | |
| CN107269218A (en) | A kind of mine special synchronous rig | |
| CN102102503A (en) | Sand prevention method for four-inch small hole | |
| CN2886062Y (en) | Large-diameter diamond composite core bit | |
| CN202850868U (en) | Composite diamond impregnated comprehensive drill bit | |
| CN2846717Y (en) | Workover finding and reaming angle top grind shoe | |
| CN202249879U (en) | Double-layer sleeve windowing whipstock | |
| CN201723156U (en) | Film coating drill bit for hard rocks | |
| CN103362473A (en) | Graded variable density well cementation technology | |
| CN103485719B (en) | A kind of gas water horizontal well drilling rig structure | |
| CN212671567U (en) | Four-wing arc angle ten-tooth diamond bit | |
| CN210829115U (en) | Casing wear-resistant joint for petroleum drilling | |
| CN204716135U (en) | A kind of drill bit assembly for Backpack type core-drill(ing) machine | |
| CN102011554B (en) | Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end | |
| CN208347697U (en) | A kind of diamond compact bit | |
| CN203441372U (en) | Diamond composite tooth down-the-hole drill bit | |
| CN202767877U (en) | Hydraulic walking type percussion reverse circulation slot repairing machine | |
| CN201934012U (en) | Hole sweep drilling tool of rotary drilling rig | |
| CN2672274Y (en) | Heavy hammer tamping type earth quake drill machine | |
| CN205689140U (en) | A kind of drilling guide device that hangs down | |
| CN2869276Y (en) | Reverse well-expanding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150809 Granted publication date: 20070404 |
|
| EXPY | Termination of patent right or utility model |