CN104775782B - A kind of cleaning structure of side-wall core extractor - Google Patents
A kind of cleaning structure of side-wall core extractor Download PDFInfo
- Publication number
- CN104775782B CN104775782B CN201510065259.9A CN201510065259A CN104775782B CN 104775782 B CN104775782 B CN 104775782B CN 201510065259 A CN201510065259 A CN 201510065259A CN 104775782 B CN104775782 B CN 104775782B
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- China
- Prior art keywords
- coring
- brush
- cleaning
- piston rod
- bit
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Classifications
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- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
Abstract
A kind of cleaning structure of side-wall core extractor, including coring apparatus body and it is arranged on the coring bit of the coring apparatus body front end, it is equipped with the coring apparatus body and pushes away core piston rod, it is described to push away core piston rod and the coring hole of the coring bit is coaxial, the core piston rod front end that pushes away is equipped with the first cleaning brush, and first cleaning brush can enter in the coring hole of the coring bit under the promotion for pushing away core piston rod；The structure can clean coring bit, avoid coring bit that viscous bore occurs.
Description
Technical field
The present invention relates to a kind of cleaning structure, more particularly to a kind of cleaning structure of side-wall core extractor.
Background technology
For side-wall core extractor in coring, hollow shaft hydraulic motor drives drill bit extension bar and coring bit to carry out at present
Coring, when completing coring, hollow shaft hydraulic motor carries drill bit extension bar and coring bit is recovered in instrument,
If coring success, cylindrical rock core is carried in the coring hole of coring bit, side-wall core extractor coring work progress at the scene
In, instrument once go into the well can coring quantity up to 60, but during actual coring, reach preferable it is difficult to once go into the well
Coring quantity, main reason is that easily (in location of the coring procedure, coring bit is by well for the viscous brill of generation for coring bit in location of the coring procedure
The phenomenon that lower mud wraps, is commonly called as viscous brill), and the viscous degree bored gradually increases with the increase of coring quantity；In coring
In work progress, it is very high that the viscous frequency bored occurs particularly in the larger hole condition of used mud viscosity, in location of the coring procedure；
In location of the coring procedure, once occur it is viscous bore, drill bit consumes that power is significantly increased, coring speed is greatly reduced, coring during coring
It is greatly reduced into rate, while instrument is met the risk blocked in underground and is sharply increased.
The content of the invention
It is an object of the present invention to provide a kind of cleaning structure of side-wall core extractor, the structure can to coring bit into
Row cleaning, avoids coring bit that viscous bore occurs.
The technical solution adopted in the present invention is a kind of cleaning structure of side-wall core extractor, including coring apparatus body and
The coring bit of the coring apparatus body front end is arranged on, is equipped with the coring apparatus body and pushes away core piston rod, it is described to push away core work
The coring hole of stopper rod and the coring bit is coaxial, and the core piston rod front end that pushes away is equipped with the first cleaning brush, first cleaning
Brushing can enter in the coring hole of the coring bit under the promotion for pushing away core piston rod.
It is preferred that the coring apparatus body front end is equipped with rotating output shaft, it is clear to be fixed with second on the rotating output shaft
Scrub, the outer wall that second cleaning brush can be with the coring bit under the drive of the rotating output shaft contacts.
It is preferred that the front end for pushing away core piston rod, which is equipped with, pushes away core print, first cleaning brush, which is arranged on, described pushes away core print
Pushed away with described between core piston rod.
It is preferred that second cleaning brush includes stainless steel brush and vertical with the brush holder side of the stainless steel brush
Connecting hole, the connecting hole fixes with the rotating output shaft.
It is preferred that first cleaning brush includes cylindrical brush and the connection for being arranged on the cylindrical brush both ends
Head, the connector of described cylindrical brush one end are fixed with the core piston rod that pushes away, the connection of the cylindrical brush other end
Head is fixed with the core print that pushes away.
It is preferred that the outside diameter of the cylindrical brush is more than the internal diameter in the coring bit coring hole.
It is preferred that the rear end of the coring bit has been sequentially connected with drill bit extension bar and hollow shaft hydraulic motor, the brill
Head extension bar and the endoporus of hollow shaft hydraulic motor and the coring hole of the coring bit are coaxial, and first cleaning brush can be distinguished
Into the drill bit extension bar and the endoporus of hollow shaft hydraulic motor.
It is preferred that the brush surface of first cleaning brush is serrated.
It is preferred that the core piston rod that pushes away is equipped with displacement sensor.
The beneficial effects of the invention are as follows：
1st, the push away core piston rod front end coaxial with the coring hole of coring bit is equipped with the first cleaning brush, which can
Enter in the case where pushing away the drive of core piston rod in the coring hole of coring bit, and can be moved back and forth in coring hole, to table in drill bit
Face is cleaned；The first cleaning brush can be stopped in coring hole at the same time, coring bit is rotated at a high speed, utilized the first cleaning brush
With the relative rotary motion of coring bit, drill bit internal is cleaned, avoids bonding inside coring bit.
2nd, the second cleaning brush is equipped with the front end of the outside of coring bit, coring apparatus body, the second cleaning brush can rotate
Rotated under the drive of output shaft, until the brush surface of the second cleaning brush is contacted with the outer wall of coring bit, by core drill head height
Speed rotation, scrubs relative rotary motion with coring bit outer wall using second, bit exterior is cleaned, avoids core drill
Hair life bonds.
3rd, the core piston rod that pushes away in the present invention is equipped with displacement sensor, which, which can detect, pushes away core piston rod
On the first cleaning brush shift position.
4th, the brush surface of the first cleaning brush in the present invention is serrated, easy to the first cleaning brush to coring bit inner wall
On mud cleaned.
Brief description of the drawings
Fig. 1 is the structure diagram of one embodiment of the invention；
Fig. 2 is the sectional view at B-B in Fig. 1；
Fig. 3 is the structure diagram of the first cleaning brush of the invention；
Fig. 4 is the structure diagram of the second cleaning brush of the invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where there is no conflict, in the embodiment and embodiment in the application
Feature can mutually be combined.
As shown in Figure 1, a kind of cleaning structure of side-wall core extractor, including coring apparatus body 9 and it is arranged on coring apparatus sheet
The coring bit 6 of 9 front end of body, coring bit 6 are hollow diamond drilling bit, coring hole are equipped with it, in the rear end of coring bit 6
It has been sequentially connected with drill bit extension bar 5 and hollow shaft hydraulic motor 4, the endoporus of the drill bit extension bar 5 and hollow shaft hydraulic motor 4
It is coaxial with the coring hole of the coring bit 6, it is equipped with the cavity of the coring apparatus body 9 and pushes away core piston rod 1, pushes away core piston rod
1 is coaxial with the coring hole of the coring bit 6, and the one end for pushing away core piston rod 1 is connected with hydraulic cylinder, and hydraulic cylinder, which can drive, pushes away core work
Stopper rod 1 carries out reciprocal straight-line displacement, is equipped with the other end for pushing away core piston rod 1 and pushes away core print 3, is pushing away core print 3 and is pushing away core piston
The first cleaning brush 2 is equipped between bar 1, another embodiment is directly to be equipped with the other end for pushing away core piston rod 1 in the present invention
First cleaning brush 2；First cleaning brush 2 can be in the case where pushing away the drive of core piston rod 1 sequentially through 4 endoporus of hollow shaft hydraulic motor, brill
The coring hole of head 5 endoporus of extension bar and coring bit 6, and can be to 4 endoporus of hollow shaft hydraulic motor, 5 endoporus of drill bit extension bar
And the coring hole of coring bit 6 is cleaned.
As shown in Fig. 2, rotating output shaft 8 is equipped with the outside of the front end of coring apparatus body 9, coring bit 6, rotation output
8 one end of axis is connected with hydraulic cylinder, and the other end is fixed with the second cleaning brush 7, and the second cleaning brush 7 can be in the drive of rotating output shaft 8
Under rotated, until the second cleaning brush 7 contacted with the outer wall of coring bit 6.
As shown in figure 3, the first cleaning brush 2 in the present invention, including cylindrical brush 201 and it is arranged on the cylinder
The connector 202 at 201 both ends of brush, the connector 202 of described cylindrical brush one end are fixed with the core piston rod 1 that pushes away, institute
The connector 202 and the core print 3 that pushes away for stating the cylindrical brush other end are fixed, and the outside diameter of cylindrical brush 201 is more than described take
The internal diameter in 6 coring hole of core drill bit, and the surface of the cylindrical brush 201 is preferably serrated, easy to being carried out in coring bit 6
Cleaning.
As shown in figure 4, the second cleaning brush 7 in the present invention, including stainless steel brush 701 and with the stainless steel brush
The vertical connecting hole 702 in 701 brush holder side, the connecting hole 702 are fixed with the rotating output shaft 8, make stainless steel brush
701 can be rotated around rotating output shaft 8, when being cleaned to 6 outer wall of coring bit, are rotated stainless steel brush 701, are made not
The surface of rust steel brush 701 is contacted with the outer wall of coring bit 6.
The core piston rod 1 that pushes away in the present invention is equipped with displacement sensor, which can detect first at any time
The position that cleaning brush 2 moves, easy to be operated to the first cleaning brush 2.
During present invention cleaning 6 inside of coring bit, push away core piston rod 1 and drive the first cleaning brush 2, push away core print 3 into Fig. 1
Move on right side；Push away core piston rod 1 under the drive of hydraulic cylinder can left and right move back and forth, drive the first cleaning brush 2 to hollow liquid
The inner hole wall of pressure motor axis 4, the endoporus of drill bit extension bar 5, the coring hole of coring bit 6 are cleaned repeatedly；When pushing away core piston
When the first cleaning brush 2 of drive of bar 1 moves to low order end, i.e. the first cleaning brush 2 reaches the low order end in 6 coring hole of coring bit, quiet
Only, hollow shaft hydraulic motor 4 drives 6 low speed rotation of coring bit, and relative motion occurs for 6 and first cleaning brush 2 of coring bit, from
And the mud cleans for being bonded in 6 inner wall of coring bit are fallen, achieve the purpose that to clean drill bit internal.
During present invention cleaning 6 outside of coring bit, rotating output shaft 8 drives the second cleaning brush 7 to rotate, and makes the second cleaning brush
7 top of stainless steel brush 701 is contacted with 6 outer wall of coring bit, starts hollow hydraulic motor axis 4, hollow 4 band of hydraulic motor axis
Relative motion occurs for 6 low speed rotation of dynamic coring bit, 6 and second cleaning brush 7 of coring bit, so that handle is bonded in coring bit 6
The mud cleans of outer wall fall, so as to achieve the purpose that to clean bit exterior.
When needing to clean 6 inside and outside portion of coring bit at the same time, push away core piston rod 1 drive the first cleaning brush 2, push away core print 3 to
When the right side moves to low order end, stop；Rotating output shaft 8 drives the second cleaning brush 7 to rotate, and makes the stainless steel brush of the second cleaning brush 7
The top of son 701 is contacted with 6 outer wall of coring bit；At this time, hollow hydraulic motor axis 4 is started, hollow hydraulic motor axis 4 drives coring
At the same time relative motion occurs for 6 low speed rotation of drill bit, 6 and second cleaning brush 7 of coring bit and the first cleaning brush 2, so that bonding
Fall in the mud cleans of 6 outer wall of coring bit, inner wall, achieve the purpose that high-efficiency washing drill bit.
Although disclosed herein embodiment as above, the content only to facilitate understand the present invention and adopt
Embodiment, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (8)
1. a kind of cleaning structure of side-wall core extractor, including coring apparatus body and it is arranged on taking for the coring apparatus body front end
Core drill bit, it is characterised in that it is equipped with the coring apparatus body and pushes away core piston rod, it is described to push away core piston rod and the coring bit
Coring hole it is coaxial, the core piston rod front end that pushes away is equipped with the first cleaning brush, and first cleaning brush pushes away core piston rod described
Promotion under can enter the coring bit coring hole in, the inner wall in the coring hole of the coring bit is cleaned；Institute
State coring apparatus body front end and be equipped with rotating output shaft, the second cleaning brush, second cleaning are fixed with the rotating output shaft
Brush can be with the coring bit under the drive of the rotating output shaft outer wall contact.
2. cleaning structure as claimed in claim 1, it is characterised in that the front end for pushing away core piston rod is equipped with and pushes away core print, institute
State the first cleaning brush and be arranged on and described push away core print and described push away between core piston rod.
3. cleaning structure as claimed in claim 1, it is characterised in that second cleaning brush include stainless steel brush and with
The vertical connecting hole in the brush holder side of the stainless steel brush, the connecting hole are fixed with the rotating output shaft.
4. cleaning structure as claimed in claim 2, it is characterised in that first cleaning brush includes cylindrical brush and sets
The connector at the cylindrical brush both ends is put, the connector of described cylindrical brush one end is consolidated with the core piston rod that pushes away
Fixed, the connector of the cylindrical brush other end is fixed with the core print that pushes away.
5. cleaning structure as claimed in claim 4, it is characterised in that the outside diameter of the cylindrical brush is more than the core drill
The internal diameter in head coring hole.
6. the cleaning structure as described in claim 1-5 is any, it is characterised in that the rear end of the coring bit has been sequentially connected with
Drill bit extension bar and hollow shaft hydraulic motor, endoporus and the coring bit of the drill bit extension bar and hollow shaft hydraulic motor
Coring hole it is coaxial, first cleaning brush can respectively enter the endoporus of the drill bit extension bar and hollow shaft hydraulic motor.
7. the cleaning structure as described in claim 1-5 is any, it is characterised in that the brush surface of first cleaning brush is in saw
Dentation.
8. the cleaning structure as described in claim 1-5 is any, it is characterised in that the core piston rod that pushes away is equipped with displacement sensing
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065259.9A CN104775782B (en) | 2015-02-06 | 2015-02-06 | A kind of cleaning structure of side-wall core extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065259.9A CN104775782B (en) | 2015-02-06 | 2015-02-06 | A kind of cleaning structure of side-wall core extractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104775782A CN104775782A (en) | 2015-07-15 |
| CN104775782B true CN104775782B (en) | 2018-04-17 |
Family
ID=53617506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510065259.9A Active CN104775782B (en) | 2015-02-06 | 2015-02-06 | A kind of cleaning structure of side-wall core extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775782B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968605A (en) * | 2017-03-28 | 2017-07-21 | 西安同兴石油设备技术有限公司 | A kind of bit of rotary well bore sidewall core taker and push away core apparatus |
| CN109899016B (en) * | 2019-02-26 | 2021-06-04 | 湖北省地质矿业开发有限责任公司 | A high-efficient type exploration equipment for iron ore sample is convenient for maintain |
| CN113073955B (en) * | 2021-03-26 | 2022-06-14 | 中国海洋石油集团有限公司 | Core distinguishing module and downhole instrument suitable for slim hole |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378050A (en) * | 1981-01-28 | 1983-03-29 | Tatevosian Ruben A | Arrangement for full hole drilling |
| US4679636A (en) * | 1986-10-16 | 1987-07-14 | Ruhle James L | Method and apparatus for coring rock |
| CN2836980Y (en) * | 2005-09-23 | 2006-11-15 | 惠州市大亚湾天马电子机械有限公司 | Cleaning device for drill clamp |
| CN2881097Y (en) * | 2006-03-17 | 2007-03-21 | 陈为民 | Drilling type side-wall coring apparatus |
| CN102076928A (en) * | 2008-06-25 | 2011-05-25 | 伊利诺斯工具制品有限公司 | Apparatus for cleaning boreholes within substrates |
| CN103758514A (en) * | 2014-01-21 | 2014-04-30 | 中国海洋石油总公司 | Rock core distinguishing and storing structure for side-wall coring instrument |
| CN203830784U (en) * | 2014-04-26 | 2014-09-17 | 台州市大森电动工具有限公司 | Electric drill with brush |
| CN104153772A (en) * | 2014-07-08 | 2014-11-19 | 中国海洋石油总公司 | Drilling type side-wall coring device |
-
2015
- 2015-02-06 CN CN201510065259.9A patent/CN104775782B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378050A (en) * | 1981-01-28 | 1983-03-29 | Tatevosian Ruben A | Arrangement for full hole drilling |
| US4679636A (en) * | 1986-10-16 | 1987-07-14 | Ruhle James L | Method and apparatus for coring rock |
| CN2836980Y (en) * | 2005-09-23 | 2006-11-15 | 惠州市大亚湾天马电子机械有限公司 | Cleaning device for drill clamp |
| CN2881097Y (en) * | 2006-03-17 | 2007-03-21 | 陈为民 | Drilling type side-wall coring apparatus |
| CN102076928A (en) * | 2008-06-25 | 2011-05-25 | 伊利诺斯工具制品有限公司 | Apparatus for cleaning boreholes within substrates |
| CN103758514A (en) * | 2014-01-21 | 2014-04-30 | 中国海洋石油总公司 | Rock core distinguishing and storing structure for side-wall coring instrument |
| CN203830784U (en) * | 2014-04-26 | 2014-09-17 | 台州市大森电动工具有限公司 | Electric drill with brush |
| CN104153772A (en) * | 2014-07-08 | 2014-11-19 | 中国海洋石油总公司 | Drilling type side-wall coring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104775782A (en) | 2015-07-15 |
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| 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 Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |