CN203891768U - Hollow drilling tool - Google Patents
Hollow drilling tool Download PDFInfo
- Publication number
- CN203891768U CN203891768U CN201420065599.2U CN201420065599U CN203891768U CN 203891768 U CN203891768 U CN 203891768U CN 201420065599 U CN201420065599 U CN 201420065599U CN 203891768 U CN203891768 U CN 203891768U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drilling tool
- chip
- discharging structure
- utility
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 49
- 238000007599 discharging Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 11
- 239000011435 rock Substances 0.000 abstract description 9
- 230000002265 prevention Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 210000004233 talus Anatomy 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a hollow drilling tool. The hollow drilling tool comprises a drill bit and a drill stem, wherein at least one row of chip space is arranged in the drill bit; a water hole is formed in the chip space; a cavity structure which is used for containing a rock core is arranged in the drill bit; the drill stem is connected with the drill bit; the central shaft of the drill stem and the central shaft of the drill bit are located on different straight lines. The hollow drilling tool can be applied to the technical field of well drilling, the clamping prevention function of the drill bit is effectively improved by applying the hollow drilling tool, rock debris and mud inside the drill bit are discharged in time, and the work efficiency of drilling operation is effectively improved.
Description
Technical field
The utility model relates to drilling technology field, especially a kind of hollow drilling tool.
Background technology
At present, in oil exploration process, usually need to obtain stratum core sample; In prior art, mechanical type rotating side-wall core extractor is exactly a kind of instrument that laterally drills through a fritter rock core sample on the borehole wall." rotary drilling-head " that mechanical type rotating side-wall core extractor is equipped with is a very important instrument, and this rotary drilling-head, in drilling process, because a variety of causes very easily with rock or drilling cuttings, sticky card occurs, thereby causes the accident such as bit bouncing, bit freezing to occur.
Through many experiments analysis, the main cause of these bit freezings, bit bouncing is: the gap of drill bit internal-and external diameter and pore size is less, and chip removal (rock particles) difficulty, easily causes bit freezing.If have again a small amount of slippage downwards at drilling process Instrumental, bit freezing more easily occur.At present, this lock of tool drilling happens occasionally, and only breaks drill bit and carrys out unfreezing; In concrete operations, the adverse effect of bringing because of bit freezing is mainly reflected in reduction investigation and prospecting efficiency aspect, and reduces service life of equipment aspect.
Utility model content
The technical problem that the utility model solves is to provide a kind of hollow drilling tool, can effectively improve the anti-sticking function of drill bit, can realize in time the mud of landwaste and drill bit internal is discharged, and can effectively improve the operating efficiency of drilling operation.
For solving the problems of the technologies described above, the utility model provides a kind of hollow drilling tool, it is characterized in that, comprises
Drill bit, described drill bit is provided with at least one chip area, and described chip area place is provided with hydrophthalmia; Described drill bit internal is provided with the cavity structure for holding core; And
Drilling rod, described drilling rod is connected with described drill bit, and the central axis of described drilling rod is positioned on different straight lines from the central axis of described drill bit.
Above-mentioned hollow drilling tool also can have following features,
Eccentric throw between the central axis of described drilling rod and the central axis of described drill bit is 0.5mm.
Above-mentioned hollow drilling tool also can have following features,
End face chip discharging structure, described end face chip discharging structure is arranged on the end face of described drill bit, and described end face chip discharging structure is for discharging mud and the landwaste of described drill bit internal; And
Side chip discharging structure, described side chip discharging structure is arranged on the side of described drill bit, on the chip discharging structure of described side, is provided with described hydrophthalmia, and described side chip discharging structure is discharged mud and landwaste for described drill bit at drilling process.
Above-mentioned hollow drilling tool also can have following features,
Described drill bit is evenly provided with 4-8 chip area and hydrophthalmia.
Above-mentioned hollow drilling tool also can have following features,
Described drill bit is evenly provided with 6 chip areas and hydrophthalmia.
Above-mentioned hollow drilling tool also can have following features,
The end face angle of described side chip discharging structure and described drill bit is 60 °.
The utility model technique scheme has following beneficial effect:
The utility model comprises drill bit, and drill bit is provided with at least one chip area, and chip area place is provided with hydrophthalmia; Drill bit internal is provided with the cavity structure for holding core; And drilling rod, drilling rod is connected with drill bit, and the central axis of drilling rod is positioned on different straight lines from the central axis of drill bit; The utility model can make drill bit generation beat rotatablely move, and drilled object produces a certain amount of gap in radial direction and drill bit, compared with existing drill bit, has good anti-sticking function; Meanwhile, by the test of many times test through inventor, this eccentric anti-sticking drill bit due to and rock between there is larger gap, spin friction resistance reduces, chip removal is smooth and easy, and after instrument trace is mobile, still can creep into safely anti-sticking effect highly significant.
Further, the utility model, by end face chip discharging structure and side chip discharging structure are set, can be realized in time the mud of landwaste and drill bit internal is discharged, and can effectively ensure the technique effect of capable of preventing sticking.
Other features and advantages of the utility model will be set forth in the following description, and, partly from manual, become apparent, or understand by implementing the utility model.The purpose of this utility model and other advantages can be realized and be obtained by specifically noted structure in manual, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used to provide the further understanding to technical solutions of the utility model, and forms a part for manual, is used from explanation the technical solution of the utility model with the application's embodiment mono-, does not form the restriction to technical solutions of the utility model.
Fig. 1 is the structure sectional view of the utility model embodiment;
Fig. 2 is the structural front view of the utility model embodiment;
Fig. 3 is the work schematic diagram of the utility model embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, hereinafter in connection with accompanying drawing, embodiment of the present utility model is elaborated.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can be combined mutually.
The utility model provides a kind of hollow drilling tool, shown in Fig. 1, Fig. 2 and Fig. 3, can comprise drill bit 2, and drill bit 2 is provided with at least one chip area, and chip area place is provided with hydrophthalmia 3; Drill bit 2 inside are provided with the cavity structure for holding core; Drilling rod 1, drilling rod 1 is connected with drill bit 2, and the central axis of drilling rod 1 is positioned on different straight lines from the central axis of drill bit 2.
In the utility model concrete operations, utilize the wobbler action of the central axis of drilling rod 1 and the central axis of drill bit 2, make the inside and outside circle of hollow rotary drilling-head 2 and axis of rotation produce respectively an eccentric amount e; The drill bit 2 that manufactures and designs out according to above-mentioned eccentric center principle can produce a larger space on drilled object surface, make endoporus and the cylindrical of hollow boring bit 2 be difficult for being bundled together with drilled object, reduce the rubbing surface between drill bit 2 and drilled object, thereby reach the object of capable of preventing sticking.Further, the utility model, by above-mentioned hydrophthalmia 3 and chip area, can be discharged the mud of landwaste and drill bit 2 inside in time in time, can effectively improve the technique effect of capable of preventing sticking.
Preferably, the utility model concrete operations provide following preferably eccentric throw, are specially: the eccentric throw between the central axis of drilling rod 1 and the central axis of drill bit 2 is 0.5mm; The utility model learns by test of many times analysis, and the eccentric throw of above-mentioned 0.5mm can effectively ensure the technique effect of capable of preventing sticking, also can ensure the drilling efficiency of drill bit 2 simultaneously.It should be noted that, the size of eccentric distance e is determining the gap length between drill bit 2 and rock core 6; Under the technical scheme enlightenment that those skilled in the art can provide in the application, according to the lithology of Different Strata, can design the drill bit 2 of different eccentric distance es, to adapt to different rocks.
Preferably, in the utility model concrete operations, for the discharge operating efficiency of further landwaste and drill bit 2 inner mud; Chip area can comprise end face chip discharging structure 7, and as shown in Figure 3, end face chip discharging structure 7 is arranged on the end face of drill bit 2, and drill bit 2 inside are core 6, and drill bit 2 outsides are stratum 5, and end face chip discharging structure 7 is for discharging the mud of drill bit 2 inside; And side chip discharging structure 4, wherein, side chip discharging structure 4 is arranged on the side of drill bit 2, and side chip discharging structure 4 is for discharging the landwaste of drill bit 2 drillings.In drill bit 2 specific works processes, the mud of drill bit 2 inside can be discharged rapidly drill bit 2 inside by end face chip discharging structure 7 under the effect of rotary centrifugal force, can effectively ensure the technique effect of capable of preventing sticking.
Further, in the utility model concrete operations, drill bit 2 can evenly arrange 4-8 chip area.Preferably, drill bit 2 can evenly be provided with 6 chip areas.Above-mentioned preferred value is 6 chip areas, can effectively landwaste and inner mud be discharged in time, can effectively ensure self intensity of drill bit 2 simultaneously, drill bit 2 self intensity reduction situation greatly generation bringing because blindly offering multiple chip areas can be effectively avoided, the application life of drill bit 2 can be effectively ensured.
Preferably, in order effectively to improve the expulsion efficiency of landwaste, in the utility model concrete operations, as shown in Figure 2, the end face angle of side chip discharging structure and described drill bit is 60 °; The utility model is analyzed by many experiments, and while finally drawing 60 ° of above-mentioned optimized angle values, the expulsion efficiency of landwaste is the highest, can effectively reduce the even stuck accident rate in the chip discharging structure of side of talus deposit.
In the above-mentioned hollow drilling tool concrete operations that the utility model provides, can make drill bit 2 produce beat and rotatablely move, drilled object produces a certain amount of gap in radial direction and drill bit 2, compared with existing drill bit, has good anti-sticking function; By the test of many times test through inventor, this eccentric anti-sticking drill bit 2 due to and rock between there is larger gap, spin friction resistance reduces, chip removal is smooth and easy, and after instrument trace is mobile, still can creep into safely anti-sticking effect highly significant; Meanwhile, the above-mentioned core drill lamps structure that the utility model provides is reasonable in design, easy to spread and implement.
Although it is apparent to those skilled in the art that the disclosed embodiment of the utility model as above, the embodiment that described content only adopts for ease of understanding the utility model, not in order to limit the utility model.Those of skill in the art under any the utility model; do not departing under the prerequisite of the disclosed spirit and scope of the utility model; can in the form of implementing and details, carry out any amendment and variation; but scope of patent protection of the present utility model, still must be as the criterion with the scope that appending claims was defined.
Claims (5)
1. a hollow drilling tool, is characterized in that, comprises
Drill bit, described drill bit is provided with at least one chip area, and described chip area place is provided with hydrophthalmia; Described drill bit internal is provided with the cavity structure for holding core; And
Drilling rod, described drilling rod is connected with described drill bit, and the central axis of described drilling rod is positioned on different straight lines from the central axis of described drill bit;
Described chip area comprises
End face chip discharging structure, described end face chip discharging structure is arranged on the end face of described drill bit, and described end face chip discharging structure is for discharging mud and the landwaste of described drill bit internal; And
Side chip discharging structure, described side chip discharging structure is arranged on the side of described drill bit, on the chip discharging structure of described side, is provided with described hydrophthalmia, and described side chip discharging structure is discharged mud and landwaste for described drill bit at drilling process.
2. hollow drilling tool according to claim 1, is characterized in that,
Eccentric throw between the central axis of described drilling rod and the central axis of described drill bit is 0.5mm.
3. hollow drilling tool according to claim 1 and 2, is characterized in that,
Described drill bit is evenly provided with 4-8 chip area and hydrophthalmia.
4. hollow drilling tool according to claim 3, is characterized in that,
Described drill bit is evenly provided with 6 chip areas and hydrophthalmia.
5. hollow drilling tool according to claim 1, is characterized in that,
The end face angle of described side chip discharging structure and described drill bit is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065599.2U CN203891768U (en) | 2014-02-14 | 2014-02-14 | Hollow drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065599.2U CN203891768U (en) | 2014-02-14 | 2014-02-14 | Hollow drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891768U true CN203891768U (en) | 2014-10-22 |
Family
ID=51718184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065599.2U Expired - Fee Related CN203891768U (en) | 2014-02-14 | 2014-02-14 | Hollow drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203891768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389522A (en) * | 2014-11-20 | 2015-03-04 | 夏本玉 | Half-cycle self-correction anti-bending drilling tool |
-
2014
- 2014-02-14 CN CN201420065599.2U patent/CN203891768U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389522A (en) * | 2014-11-20 | 2015-03-04 | 夏本玉 | Half-cycle self-correction anti-bending drilling tool |
| CN104389522B (en) * | 2014-11-20 | 2016-04-06 | 夏本玉 | The anti-bending drilling tool of half period self-correction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6450269B1 (en) | Method and bit for directional horizontal boring | |
| US9062504B2 (en) | Rock drill bit, a drilling assembly and a method for percussive rock drilling | |
| RU2662831C2 (en) | Drill rod with the locking counteraction for the coal mine roadway floor anchoring | |
| AU2001288875A1 (en) | Method and bit for directional horizontal boring | |
| CN1242872C (en) | Sliding extension closed percussion bit | |
| CN104265178B (en) | Broad | |
| CN110410010B (en) | Pneumatic impact reamer and reaming construction process | |
| CN203891768U (en) | Hollow drilling tool | |
| CN104088598A (en) | Drilling pressure relief type drilling tool jamming accident fishing tool and method | |
| CN212958458U (en) | Mechanical rotation guiding drilling tool | |
| EP3060742B1 (en) | Drilling device | |
| RU138113U1 (en) | CHISEL WITH ADVANCED BLADES | |
| CN210598825U (en) | Pneumatic impact reamer | |
| CN207960501U (en) | Can fast drilling multistage drill bit | |
| CN206374042U (en) | Adjustable openings device drill bit | |
| CN201269049Y (en) | Diamond composite sheet drilling bit used for core extraction in unconsolidated formation | |
| CN209430144U (en) | Three-layer pipe impacts core bit | |
| CN208858304U (en) | A kind of drilling rod for drilling rock formations | |
| RU2693082C1 (en) | Rock cutting tool | |
| CN204729007U (en) | A kind of eccentric deep hole drill | |
| CN205012923U (en) | Tapered rock bit | |
| KR100858865B1 (en) | Punched bits. | |
| RU2543226C2 (en) | Method for enlargement and reaming of well shaft | |
| CN102434106A (en) | Stratum coring bit and stratum coring drilling tool | |
| CN204782767U (en) | Tunnel country rock dowelling jig utensil of preventing collapsing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CHINA OILFIELD SERVICES Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CHINA OILFIELD SERVICES Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20220214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |