CN203559781U - Combined type well wall coring instrument drill bit - Google Patents
Combined type well wall coring instrument drill bit Download PDFInfo
- Publication number
- CN203559781U CN203559781U CN201320584686.4U CN201320584686U CN203559781U CN 203559781 U CN203559781 U CN 203559781U CN 201320584686 U CN201320584686 U CN 201320584686U CN 203559781 U CN203559781 U CN 203559781U
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- drill
- drill bit
- bit
- coring
- rod assemblies
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Abstract
The utility model provides a combined type well wall coring instrument drill bit comprising a drill bit shell assembly and a drill stem assembly with a coring drill bit. When the combined type coring drill bit is working, the drill bit shell assembly is immobile relative to an instrument body, the drill stem assembly stretches out and draws back in the drill bit shell assembly through sliding, a drill pressing bushing with a guide block suffers axial bit pressure and thus drives the whole drill stem assembly to move in the negative direction of X-axis and an inner spline gear rotates at high speed under the driving of a coring motor and thus drives the drill stem assembly to rotate at high speed. The drill stem assembly of the ombined type coring drill bit can stretch out and draw back in the drill bit shell assembly, so that the lengths of obtained rock core samples can be greater and the diameter of a coring instrument can be less.
Description
Technical field
The utility model relates to petroleum exploration field, relates in particular to a kind of combined type coring apparatus drill bit.
Background technology
In oil well logging instrument, often need to use coring bit, as obtaining high-quality core sample, come for physical properties of rock and reservoir analysis.The length of the core sample that oil well logging instrument coring bit length in the past is fixedly obtained is certain, and the conventional coring bit of Length Ratio that the scalable coring bit of combined type obtains core sample in the situation that coring apparatus device diameter is certain obtains core sample and will grow.
Summary of the invention
The purpose of this utility model is the These characteristics existing in prior art in order to overcome, and the utility model provides a kind of combined type side-wall core extractor drill bit, comprising: drill bit casing assembly and drill rod assemblies two parts form (as Fig. 1 and Fig. 2);
Described drill bit casing assembly, comprising: drill bit shell 3, magnetic upper end cover 4, drill bit skeleton bottom end cover 1, inside spline wheel gear 2 and fastening dog screw 5;
The drill rod assemblies of described coring bit, coring bit 6, drilling rod 7, the pressure drill bushing 8 with guide pad, drop handle 9 and steel wire collar 10.
Described drill bit casing assembly, magnetic upper end cover 4, drill bit skeleton bottom end cover 1 are fixed on drill bit shell 3 by fastening dog screw 5 respectively, and inside spline wheel gear 2 rotates while working with respect to drill bit shell 3 to axial.
The drill rod assemblies of described coring bit, coring bit 6 is connected with drilling rod 7 by screw thread, and steel wire collar 10 and drop handle 9 are arranged on and on drilling rod 7, prevent that drilling rod and the pressure drill bushing 8 with guide pad from throwing off, and with pressure drill bushing and the drilling rod of guide pad, rotate.
Described magnetic upper end cover is when drill rod assemblies is regained, to utilize magnetic that drilling rod group is inhaled to regaining direction, can be by the magnetic on magnetic upper end cover drill rod assemblies when coring apparatus device is out of order power-off.
The described pressure drill bushing with guide pad is subject to axial weight on bit to order about whole drill rod assemblies to move to X-axis negative direction, drill rod assemblies is slided in drill bit casing assembly, simultaneously inside spline wheel gear is being got High Rotation Speed under the drive that core code reaches, inside spline wheel gear drives drill rod assemblies High Rotation Speed, and coring bit starts to get core
The utility model has the advantages that because the drill rod assemblies of Combined type core extracting drilling bit can be flexible at drill bit casing assembly, can make the diameter of coring apparatus device little, the conventional coring bit of Length Ratio that the scalable coring bit of combined type obtains core sample in the situation that coring apparatus device diameter is certain obtains core sample and will grow.
Accompanying drawing explanation
Fig. 1 is that the utility model drill bit casing assembly is installed sectional drawing;
Fig. 2 is that the utility model drill rod assemblies is installed sectional drawing;
Fig. 3 is fundamental diagram of the present utility model.
The specific embodiment
In order to make those skilled in the art person understand better the scheme of the embodiment of the present invention, below in conjunction with drawings and embodiments, the embodiment of the present invention is described in further detail.
With reference to Fig. 1, be that the utility model drill bit casing assembly is installed sectional drawing, comprise: drill bit skeleton bottom end cover 1, inside spline wheel gear 2, drill bit shell 3, magnetic upper end cover 4, fastening dog screw 5.
With reference to Fig. 2, be that the utility model drill rod assemblies is installed sectional drawing, comprise: coring bit 6, drilling rod 7, the pressure drill bushing 8 with guide pad, drop handle 9, steel wire collar 10.
With reference to Fig. 3, be fundamental diagram of the present utility model, comprise that drill bit casing assembly is installed, drill rod assemblies is installed and Combined type core extracting drilling bit moves to reach and gets core object principle.
Magnetic upper end cover 1 and drill bit skeleton bottom end cover 4 are fixed on drill bit shell by fastening dog screw 5 respectively, coring bit 6 is connected with drilling rod 7 by screw thread, drop handle 9 and steel wire collar 10 are arranged on and on drilling rod, prevent that drilling rod and the pressure drill bushing 8 with guide pad from throwing off, pressure drill bushing and drilling rod with guide pad rotate, inside spline wheel gear two is rotating relative to it during work in the middle of drill bit skeleton bottom end cover and drill bit skeleton, with the pressure drill bushing of guide pad, being subject to axial weight on bit to order about whole drill rod assemblies moves to X-axis negative direction, simultaneously inside spline wheel gear is being got High Rotation Speed under the drive that core code reaches, inside spline wheel gear drives drill rod assemblies High Rotation Speed, coring bit starts to get core, when getting core and finish, Combined type core extracting drilling bit pastes root fracture core under external force, with the pressure drill bushing of guide pad, being subject to axial tension to order about whole drill rod assemblies moves to X-axis positive direction, drill rod assemblies is recovered to drill bit casing assembly the inside with core, due to Combined type core extracting drilling bit scalability, the conventional coring bit of Length Ratio that the scalable coring bit of combined type obtains core sample in the situation that coring apparatus device diameter is certain obtains core sample and will grow
Above the utility model embodiment is described in detail, has applied the specific embodiment herein the utility model is set forth, the explanation of above embodiment is just for helping to understand the utility model; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (2)
1. a combined type side-wall core extractor drill bit, is characterized in that, comprising:
Drill bit casing assembly and forming with drill rod assemblies two parts of coring bit;
Described drill bit casing assembly, comprising: drill bit shell (3), magnetic upper end cover (4), drill bit skeleton bottom end cover (1), inside spline wheel gear (2) and fastening dog screw (5);
The described drill rod assemblies with coring bit, comprising: coring bit (6), drilling rod (7), steel wire collar (10), drop handle (9) and with the pressure drill bushing (8) of guide pad;
Described drill bit casing assembly, magnetic upper end cover, drill bit skeleton bottom end cover are fixed on drill bit shell by fastening dog screw respectively, and inside spline wheel gear rotates while working with respect to drill bit shell to axial;
The drill rod assemblies of described coring bit, coring bit is connected with drilling rod by screw thread, and steel wire collar and drop handle are arranged on and on drilling rod, prevent that drilling rod and the pressure drill bushing with guide pad from throwing off, and with pressure drill bushing and the drilling rod of guide pad, rotate;
Described magnetic upper end cover is when whole drill bit assembly integral body is rotated with respect to instrument, to prevent that drill rod assemblies from deviating from by mistake.
2. combined type side-wall core extractor drill bit as claimed in claim 1, it is characterized in that: described drill rod assemblies is slided and stretched out withdrawal at drill bit casing assembly, with the pressure drill bushing of guide pad, being subject to axial weight on bit to order about whole drill rod assemblies moves to X-axis negative direction, simultaneously inside spline wheel gear is being got High Rotation Speed under the drive that core code reaches, inside spline wheel gear drives drill rod assemblies High Rotation Speed, coring bit starts to get core, and drill rod assemblies is at drill bit casing assembly sliding extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584686.4U CN203559781U (en) | 2013-09-22 | 2013-09-22 | Combined type well wall coring instrument drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584686.4U CN203559781U (en) | 2013-09-22 | 2013-09-22 | Combined type well wall coring instrument drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559781U true CN203559781U (en) | 2014-04-23 |
Family
ID=50509509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320584686.4U Expired - Fee Related CN203559781U (en) | 2013-09-22 | 2013-09-22 | Combined type well wall coring instrument drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559781U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401387A (en) * | 2017-08-09 | 2017-11-28 | 山东科技大学 | Core orienting device, coring apparatus and its sampling method based on earth's magnetic field |
| CN107916905A (en) * | 2018-01-02 | 2018-04-17 | 河南理工大学 | Reciprocating coring method and device for rock stratum sampling |
| CN116696332A (en) * | 2023-04-20 | 2023-09-05 | 中交第四航务工程局有限公司 | Composite drill bit accurate positioning device for rotary pile digger on barge |
-
2013
- 2013-09-22 CN CN201320584686.4U patent/CN203559781U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401387A (en) * | 2017-08-09 | 2017-11-28 | 山东科技大学 | Core orienting device, coring apparatus and its sampling method based on earth's magnetic field |
| CN107401387B (en) * | 2017-08-09 | 2023-06-16 | 山东科技大学 | Core orientation device, core sampling device and sampling method based on geomagnetic field |
| CN107916905A (en) * | 2018-01-02 | 2018-04-17 | 河南理工大学 | Reciprocating coring method and device for rock stratum sampling |
| CN116696332A (en) * | 2023-04-20 | 2023-09-05 | 中交第四航务工程局有限公司 | Composite drill bit accurate positioning device for rotary pile digger on barge |
| CN116696332B (en) * | 2023-04-20 | 2024-03-01 | 中交第四航务工程局有限公司 | Composite drill bit accurate positioning device for rotary pile digger on barge |
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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: 20140423 Termination date: 20190922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |