CN105386726A - Novel stratum rock core sampling drill preventing rock core from fracturing - Google Patents
Novel stratum rock core sampling drill preventing rock core from fracturing Download PDFInfo
- Publication number
- CN105386726A CN105386726A CN201510706623.5A CN201510706623A CN105386726A CN 105386726 A CN105386726 A CN 105386726A CN 201510706623 A CN201510706623 A CN 201510706623A CN 105386726 A CN105386726 A CN 105386726A
- Authority
- CN
- China
- Prior art keywords
- rock core
- drill bit
- scrapers
- drill rod
- drill
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/02—Core bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
Abstract
The invention discloses a novel stratum rock core sampling drill preventing a rock core from fracturing. The novel stratum rock core sampling drill comprises a drill crown and a stainless steel drill rod, wherein the drill crown is saw-toothed and covered with diamond particles; four sharp scrapers are installed inside the drill rod; and a scraper controller is installed at the tail of the drill rod. The novel stratum rock core sampling drill is characterized in that the length of the scrapers is equal to the length of the drill rod; the scraper controller can control the scrapers to open and close; when the scraper controller is turned on, the scrapers and the inner wall of the drill rod are in an oblique crossing state at a certain angle; when the scraper controller is turned off, the scrapers and the inner wall of the drill rod are tightly attached at a zero angle; the four scrapers are uniformly distributed on the inner wall of the drill rod; and tips of the four scrapers form a circle with the diameter of 25 mm. The novel stratum rock core sampling drill has the benefits as follows: after rock core drilling is finished, the scraper controller is turned off, so that the scrapers and the inner wall of the drill rod are tightly attached at a zero angle; and space is made between the drill rod and a rock core inside the drill rod, the drill rod is pulled out, and the rock core inside the drill rod can be effectively prevented from fracturing.
Description
Technical field
The present invention relates to a kind of portable formation rock core sampling drill bit, particularly relate to a kind of portable formation rock core sampling drill bit preventing core from rupturing.
Background technology
The application of portable formation rock core sampling rig, provides huge help for the acquisition of rock sample under wild environment.Rig original import drill bit is a kind of heavy duty import diamond bit with stainless steel handle, the diamond hat of the groove that leaks with tool.Original domestic drill bit is a kind of diamond thin skin drill bit, and drill bit has two water outlet recesses.These two kinds of drill bits are designed with delivery port at drill bit, and in the rig course of work, water flows into from drill bit afterbody, flows out from bizet recess, for cooling drill bit, reduce the wearing and tearing of drill bit.
But in actual field work; usually can run into such situation: portable drill is in the process of creeping into; because stratum is relatively soft; cementing insecure between rock particles, under the effect of the frictional force between drill bit internal rock stratum and drill bit, to rupture with basement rock at root and be separated in drill bit internal rock stratum; together rotate with drill bit; when causing extracting drill bit, core Automatic-falling, or be stuck in drill bit internal.The core come off cannot carry out core orientation work below, and the core drilled through cannot utilize.Be stuck in the core blocking drill bit of drill bit internal, core cannot use, and is difficult to take out, and has a strong impact on normal field work.
Core fracture situation have two kinds: one be rig in the course of the work, the direct friction of drill bit and core, causes core to rupture; Another kind is rig when completing boring, and core does not rupture, and when extracting drill bit, due to the friction between core and drill bit wall, causes core to rupture.In actual field work, as long as rock stratum reaches certain degree of consolidation, rig is in drilling process, and core can not rupture, and when extracting rig, usually there will be core fracture, situation about being stuck in drill bit.In view of the above problems, the present invention proposes a kind of new drill, in the course of work of rig, can effectively prevent coming off of core, be blocked in drill bit even if core comes off, still easily core can be taken out, not affect follow-up work.
Summary of the invention
The object of the invention is to the defect for existing drill bit, a kind of formation rock core sampling drill bit preventing core from rupturing is provided, while meeting the requirement of core post sample size, reduce the probability of core fracture in drill bit, solve the segregative problem of core and substrate rock stratum in drilling process, even if core ruptures, the situation also can effectively avoiding core to block drilling rod occurs.
A kind of novel formation rock core sampling drill bit preventing core from rupturing, comprise drill bit and stainless steel drilling rod, described drill bit indentation, described drill bit is covered with diamond particles, four scrapers are installed in described drilling rod inside, and described drilling rod afterbody is provided with described scraper controller.
As preferred technical scheme, the long 5mm of described drill bit, edge indentation, surface is covered with diamond particles.The long 200mm of described stainless steel drilling rod, internal diameter 26.5mm, external diameter 29mm.
As the improvement to technique scheme, described scraper is equal with described run of steel.
As the further improvement to technique scheme, described scraper controller can control the unlatching of described scraper with closed.
As the further improvement to technique scheme, when described scraper controller is opened, described scraper and the angled oblique of described drilling rod inwall, when described scraper controller cuts out, described scraper and described drilling rod inwall non-angular are close to.
As improving especially further technique scheme, described four scrapers are uniformly distributed at described drilling rod inwall.
As improving especially further technique scheme, the tip of described four scrapers surrounds a circle, and diameter of a circle is 25mm.
Owing to adopting technique scheme, the invention has the beneficial effects as follows: the normal drill bit being different from original band recess, drill bit of the present invention is designed to adopt zigzag spark, can before drill bit creeps into rock stratum, effectively to link closely rock stratum, prevent the double swerve of drill bit, strengthen the accuracy of getting core position, avoid core major gene drilling rod to rock the fracture caused.Zigzag diamond bit has the function of original drill bit cove design equally, for cooling water provides flow export, and also less than original drill bit surface, decrease adamantine use, effectively reduce drill bit cost, add economical and practical type.Creeping in running, scraper is with drill bit altogether running, core post in drill bit is polished, while meeting the requirement of core post sample size, after rig is finished the work, described scraper controller is utilized to be closed by described scraper, described scraper and described drilling rod wall non-angular are close to, certain space is had between drill bit and core post, substantially reduce the direct contact friction between core and drilling rod wall, the situation effectively avoiding core to block drilling rod occurs, due to the reduction of frictional force between the two, when extracting drill bit, reduce the probability that drill bit directly touches core, thus the possibility of core fracture in minimizing drill bit.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, is not limited to scope of the present invention.Wherein:
Fig. 1 is the front view of structural representation of the present invention;
Fig. 2 is the lateral view of structural representation of the present invention;
Description of reference numerals: 1-drill bit; 2-diamond particles; 3-stainless steel drilling rod; 4-drilling rod internal upper part scraper; Left side, middle part scraper in 5-drilling rod; Lower doctor in 6-drilling rod; Right side, middle part scraper in 7-drilling rod; 8-scraper controller.
Detailed description of the invention
In order to there be understanding clearly to the present invention, existing accompanying drawings the specific embodiment of the present invention.
As depicted in figs. 1 and 2, a kind of novel formation rock core sampling drill bit preventing core from rupturing, comprise drill bit 1 and stainless steel drilling rod 3, described drill bit indentation, described drill bit is covered with diamond particles 2, and four scrapers 4 are installed in described drilling rod inside, 5,6,7, described drilling rod afterbody is provided with described scraper controller 8.
When core drilling, described drilling rod 3 afterbody and portable drill are coupled together, utilize the sawtooth of described drill bit 1 to link closely and get core position, open scraper controller 8, make described scraper 4, 5, 6, 7 with the angled oblique of described drilling rod 3 inwall, start rig, connect cooling water flow, even formation drilling, get into certain depth, close rig, close cooling water, close scraper controller 8, make described scraper 4, 5, 6, 7 are close to described drilling rod 3 inwall non-angular, a fixed gap is vacateed between described drilling rod 3 and inner core post, carefully extract drill bit, complete core drilling work,
The present invention does not describe part in detail, is the known technology of those skilled in the art of the present technique.
Claims (6)
1. the novel formation rock core sampling drill bit preventing core from rupturing, comprise drill bit (1) and stainless steel drilling rod (3), described drill bit (1) indentation, described drill bit (1) is covered with diamond particles (2), four scrapers (4) (5) (6) (7) are installed in described drilling rod (3) inside, and described drilling rod (3) afterbody is provided with described scraper controller (8).
2. a kind of novel formation rock core sampling drill bit preventing core from rupturing as claimed in claim 1, is characterized in that: described scraper (4) (5) (6) (7) are equal with described drilling rod (3) length.
3. a kind of novel formation rock core sampling drill bit preventing core from rupturing as claimed in claim 1, is characterized in that: described scraper controller (8) can control the unlatching of described scraper (4) (5) (6) (7) with closed.
4. a kind of novel formation rock core sampling drill bit preventing core from rupturing as claimed in claim 1, it is characterized in that: when described scraper controller (8) is opened, described scraper (4) (5) (6) (7) and the angled oblique of described drilling rod (3) inwall, when described scraper controller (8) is closed, described scraper (4) (5) (6) (7) and described drilling rod (3) inwall non-angular are close to.
5. a kind of novel formation rock core sampling drill bit preventing core from rupturing as claimed in claim 1, is characterized in that: described four scrapers (4) (5) (6) (7) are uniformly distributed at described drilling rod (3) inwall.
6. a kind of novel formation rock core sampling drill bit preventing core from rupturing as claimed in claim 1, it is characterized in that: the tip of described four scrapers (4) (5) (6) (7) surrounds a circle, and diameter of a circle is 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706623.5A CN105386726B (en) | 2015-10-27 | 2015-10-27 | A kind of new stratum core sampling drill bit for preventing core to be broken |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706623.5A CN105386726B (en) | 2015-10-27 | 2015-10-27 | A kind of new stratum core sampling drill bit for preventing core to be broken |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105386726A true CN105386726A (en) | 2016-03-09 |
| CN105386726B CN105386726B (en) | 2017-11-07 |
Family
ID=55419429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510706623.5A Expired - Fee Related CN105386726B (en) | 2015-10-27 | 2015-10-27 | A kind of new stratum core sampling drill bit for preventing core to be broken |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105386726B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424855A (en) * | 2016-12-26 | 2017-02-22 | 王文胜 | Diamond bit |
| CN112377132A (en) * | 2020-12-21 | 2021-02-19 | 无锡锡钻地质装备有限公司 | Directional core drill with marking function |
| CN113236167A (en) * | 2021-03-31 | 2021-08-10 | 广东海洋大学 | Rock core sampling method |
| CN116792047A (en) * | 2023-08-23 | 2023-09-22 | 中国电建集团西北勘测设计研究院有限公司 | Rock drilling sampling device for fracture analysis of deep-buried tunnel |
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| US1923486A (en) * | 1931-05-18 | 1933-08-22 | Globe Oil Tools Co | Core drill |
| CN2157979Y (en) * | 1993-03-25 | 1994-03-02 | 童春耕 | Drill bit |
| US20050084349A1 (en) * | 2002-02-12 | 2005-04-21 | Karl Kammerer | Drilling tool |
| CN201031624Y (en) * | 2007-05-17 | 2008-03-05 | 中国地质大学（武汉） | Argillite layer drilling mouse teeth type diamond composite sheet coring drill |
| CA2675478A1 (en) * | 2009-08-20 | 2011-02-20 | Go For Bits Inc. | Core sample forming mill |
| CN102061886A (en) * | 2010-12-10 | 2011-05-18 | 湖南飞碟新材料有限责任公司 | Drill bit |
| CN202706969U (en) * | 2012-05-30 | 2013-01-30 | 三一重工股份有限公司 | Core drill bit |
| CN103184833A (en) * | 2012-11-29 | 2013-07-03 | 桂林金刚石工业有限公司 | Diamond bit with large saw-teeth |
| CN103510858A (en) * | 2013-10-09 | 2014-01-15 | 无锡中地地质装备有限公司 | Tooth-shaped drill bit for exploratory drilling |
| CN103510899A (en) * | 2013-09-30 | 2014-01-15 | 无锡中地地质装备有限公司 | Clamp spring on drill machine |
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2015
- 2015-10-27 CN CN201510706623.5A patent/CN105386726B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1923486A (en) * | 1931-05-18 | 1933-08-22 | Globe Oil Tools Co | Core drill |
| CN2157979Y (en) * | 1993-03-25 | 1994-03-02 | 童春耕 | Drill bit |
| US20050084349A1 (en) * | 2002-02-12 | 2005-04-21 | Karl Kammerer | Drilling tool |
| CN1617974A (en) * | 2002-02-12 | 2005-05-18 | 贝泰克采矿和硬合金技术卡尔-海因茨·西蒙两合公司 | Drilling tool |
| CN201031624Y (en) * | 2007-05-17 | 2008-03-05 | 中国地质大学（武汉） | Argillite layer drilling mouse teeth type diamond composite sheet coring drill |
| CA2675478A1 (en) * | 2009-08-20 | 2011-02-20 | Go For Bits Inc. | Core sample forming mill |
| CN102061886A (en) * | 2010-12-10 | 2011-05-18 | 湖南飞碟新材料有限责任公司 | Drill bit |
| CN202706969U (en) * | 2012-05-30 | 2013-01-30 | 三一重工股份有限公司 | Core drill bit |
| CN103184833A (en) * | 2012-11-29 | 2013-07-03 | 桂林金刚石工业有限公司 | Diamond bit with large saw-teeth |
| CN103510899A (en) * | 2013-09-30 | 2014-01-15 | 无锡中地地质装备有限公司 | Clamp spring on drill machine |
| CN103510858A (en) * | 2013-10-09 | 2014-01-15 | 无锡中地地质装备有限公司 | Tooth-shaped drill bit for exploratory drilling |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424855A (en) * | 2016-12-26 | 2017-02-22 | 王文胜 | Diamond bit |
| CN112377132A (en) * | 2020-12-21 | 2021-02-19 | 无锡锡钻地质装备有限公司 | Directional core drill with marking function |
| CN112377132B (en) * | 2020-12-21 | 2024-04-30 | 无锡锡钻地质装备有限公司 | Directional core drill with marking function |
| CN113236167A (en) * | 2021-03-31 | 2021-08-10 | 广东海洋大学 | Rock core sampling method |
| CN116792047A (en) * | 2023-08-23 | 2023-09-22 | 中国电建集团西北勘测设计研究院有限公司 | Rock drilling sampling device for fracture analysis of deep-buried tunnel |
| CN116792047B (en) * | 2023-08-23 | 2023-11-14 | 中国电建集团西北勘测设计研究院有限公司 | Rock drilling sampling device for fracture analysis of deep-buried tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105386726B (en) | 2017-11-07 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20201027 |