CN108266146A - The quick coring apparatus of oil drilling - Google Patents
The quick coring apparatus of oil drilling Download PDFInfo
- Publication number
- CN108266146A CN108266146A CN201810004520.8A CN201810004520A CN108266146A CN 108266146 A CN108266146 A CN 108266146A CN 201810004520 A CN201810004520 A CN 201810004520A CN 108266146 A CN108266146 A CN 108266146A
- Authority
- CN
- China
- Prior art keywords
- connector
- joint
- threadably secured
- inner cylinder
- outer barrel
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 210000002445 nipple Anatomy 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000007667 floating Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000036651 mood Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 or core extractors
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to oil field well CORING TECHNOLOGY fields, are a kind of quick coring apparatus of oil drilling；Including lifting rod, connector, hanging pup joint, bearing baffle ring, bearing holder (housing, cover), outer barrel, shunt connector, piston bush, piston rod, inner cylinder, drill bit, double male joint, bearing, piston body and sealing ring, lifting rod lower end is fixedly mounted in connector, double male joint lower end and outer barrel upper end are fixedly installed togather, outer barrel lower end outside is installed with drill bit, inner cylinder is located in outer barrel and drill bit, and the lower end outside of inner cylinder is installed with pawl bell and spigot joint.Reasonable and compact in structure of the present invention, it is easy to use, ball seat top is provided with steel ball, mud and sealing fluid are into line replacement after floating piston uplink sealing ring destroys when avoiding the inner cylinder from building the pressure, ensure Sealed efficiency of coring, working efficiency when tool lift, assembled, going out the heart is improved simultaneously, saves working time, raising inner cylinder sealing reliability.
Description
Technical field
The present invention relates to oil field well coring apparatus technical fields, are a kind of quick coring apparatus of oil drilling.
Background technology
Existing coring tool outer barrel is typically all the same size of outer diameter, scene all can only with lifting sub or carry silk into
Row lifting, bothersome laborious, the sealing ring on floating piston is dynamic sealing when inner cylinder builds the pressure situation, but sealing ring be
It works under the conditions of mud, since mud contains fixed particle, irregular landwaste, sealing ring easily damages during being slidingly sealed
It is bad, top seal function is lost, mud, into line replacement, influences Sealed efficiency of coring, and then influence user with the sealing fluid in inner cylinder
Rock core is chemically examined.Before coring and terminating the heart, generally all need first to check and grab mood condition and clear up core bit, be required for first filling promotion
Pipe nipple could carry out and carry out more and time core also to need repeatedly go up shackle, increasing thread abrasion, shortening tool life.
Invention content
The present invention provides a kind of quick coring apparatus of oil drilling, overcome the deficiency of the above-mentioned prior art, can have
Effect solves existing coring tool sealing ring during being slidingly sealed and is easily damaged, so as to lose sealing function, mud and inner cylinder
In sealing fluid into line replacement, influence core Sealed efficiency the problem of.
The technical scheme is that realized by following measures：A kind of quick coring apparatus of oil drilling, including
Lifting rod, connector, hanging pup joint, bearing baffle ring, bearing holder (housing, cover), outer barrel, shunt connector, piston bush, piston rod, inner cylinder, drill bit,
Double male joint, bearing, piston body and sealing ring, lifting rod lower end are fixedly mounted in connector, double male joint lower end and outer barrel
Upper end is fixedly installed togather, and outer barrel lower end outside is installed with drill bit, and inner cylinder is located in outer barrel and drill bit, the lower end of inner cylinder
Outside is installed with pawl bell and spigot joint, and pawl bell and spigot joint lower end outside is installed with the rock that lower inside is in taper type wide at the top and narrow at the bottom
Heart pawl set, core grabber set stop collar are set with core grabber in core grabber set, are equipped at the top of core grabber by pawl on drill bit wall
The baffle ring that bell and spigot joint is held out against, pawl bell and spigot joint and baffle ring inner sleeve are equipped with seal, and seal is connected to one with baffle ring by pin
It rises, seal lower part is installed with closed bar, and axial drilling fluid circulation port is provided on drill bit, is set on the outside of hanging pup joint upper end
There is annular convex platform, convex annular pedestal is interior in the middle part of hanging pup joint to be equipped with land, connector lower part suit on double male joint upper surface
In the hanging pup joint above land, at least one flowing hole of connector top radial distribution, bearing holder (housing, cover) top is fixedly mounted on
The upper outside of hanging pup joint, the top of shunt connector are located in hanging pup joint, are equipped between shunt connector and bearing holder (housing, cover)
Bearing, is installed with bearing baffle ring on the outside of the upper end of shunt connector, the top of shunt connector be circumferentially radially distributed with to
Circulation port one few, the lower outside of shunt connector and the upper inner of piston bush are fixedly installed togather, piston body suit
It is sealed on the inside of piston bush and by sealing ring, being circumferentially radially provided at least two in the middle part of the piston bush in portion on the piston body lets out
Hole is pressed, piston bush lower end inside is installed with ball seat, and ball seat upper end is equipped with steel ball, and piston bush lower end outside and inner cylinder upper end are consolidated
Dingan County is fitted together, and piston rod top is sleeved in shunt connector, and underpart of the piston rod is fixedly mounted in piston body.
Here is the further optimization and/or improvements to foregoing invention technical solution：
Above-mentioned double male joint upper end is installed with connector, and connector upper end is installed with lifting sub.
Loop coil is installed in the middle part of above-mentioned shunt connector, shunt connector lower part is equipped with downward opening lower groove, loop coil
Lower end is installed with snap ring, and snap ring is equipped with boss, and boss is stuck in lower groove.
Sealing ring is provided between above-mentioned core grabber set and drill bit.
Above-mentioned lifting rod lower end is threadably secured with connector to be installed together, and passes through screw thread between outer barrel and drill bit
It is installed with protection connector.
Above-mentioned top connection lower end and double male joint upper end are threadably secured and are installed together, and hanging pup joint and bearing holder (housing, cover) lead to
It crosses to be screwed and be installed together, double male joint lower end and outer barrel upper end are threadably secured and are installed together, piston bush lower end
Outside and inner cylinder upper end are threadably secured and are installed together, and inner cylinder lower end outside and pawl bell and spigot joint are threadably secured and are mounted on
Together, pawl bell and spigot joint and core grabber set are threadably secured and are installed together.
Reasonable and compact in structure of the present invention, it is easy to use, ball seat top is provided with steel ball, inner cylinder is avoided to be floated when building the pressure
Mud and sealing fluid be into line replacement after piston uplink sealing ring destroys, and guarantee is cored Sealed efficiency, at the same improve tool lifting,
Working efficiency when assembling, going out the heart saves working time, improves inner cylinder sealing reliability.
Description of the drawings
Attached drawing 1 is the top half main view schematic cross-sectional view of preferred embodiment.
Attached drawing 2 is the lower half portion main view schematic cross-sectional view of preferred embodiment.
Coding in attached drawing is respectively：1 is lifting rod, and 2 be lifting sub, and 3 be connector, and 4 be hanging pup joint, and 5 be axis
Baffle ring is held, 6 be bearing holder (housing, cover), and 7 be outer barrel, and 8 be shunt connector, and 9 be piston bush, and 10 be piston rod, and 11 be inner cylinder, and 12 be drill bit,
13 be top connection, and 14 be double male joint, and 15 be annular convex platform, and 16 be flowing hole, and 17 be bearing, and 18 be circulation port, and 19 be loop coil,
20 be lower groove, and 21 be snap ring, and 22 be boss, and 23 be piston body, and 24 be relief hole, and 25 be ball seat, and 26 be steel ball, and 27 be protection
Connector, 28 be pawl bell and spigot joint, and 29 be core grabber set, and 30 be seal, and 31 be baffle ring, and 32 be pin, and 33 be closed bar, and 34 be rock
Heart pawl, 35 be drilling fluid circulation port, and 36 be sealing ring, and 37 be land.
Specific embodiment
The present invention is not limited by following embodiments, can be determined according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to Figure of description 1
Butut mode be described, such as：The position relationship of upper and lower, left and right etc. is that the Butut direction of foundation Figure of description is come
Determining.
With reference to embodiment and attached drawing, the invention will be further described：
As shown in attached drawing 1,2, the quick coring apparatus of the oil drilling includes lifting rod 1, connector 3, hanging pup joint 4, bearing rib
Ring 5, bearing holder (housing, cover) 6, outer barrel 7, shunt connector 8, piston bush 9, piston rod 10, inner cylinder 11, drill bit 12, double male joint 14, bearing 17,
Piston body 23 and sealing ring 36,1 lower end of lifting rod are fixedly mounted in connector 3, and 14 lower end of double male joint and 7 upper end of outer barrel are consolidated
Dingan County is fitted together, and 7 lower end outside of outer barrel is installed with drill bit 12, and inner cylinder 11 is located in outer barrel 7 and drill bit 12, inner cylinder 11
Lower end outside is installed with pawl bell and spigot joint 28, and 28 lower end outside of pawl bell and spigot joint is installed with lower inside in cone wide at the top and narrow at the bottom
The core grabber set 29 of platform shape, core grabber cover 29 stop collars on 12 inner wall of drill bit, and core grabber 34 is set in core grabber set 29,
The baffle ring 31 held out against by pawl bell and spigot joint 28 is equipped at 34 top of core grabber, pawl bell and spigot joint 28 and 31 inner sleeve of baffle ring are equipped with seal
30, seal 30 is linked together with baffle ring 31 by pin 32, and 30 lower part of seal is installed with closed bar 33, drill bit 12
On be provided with axial drilling fluid circulation port 35, annular convex platform 15 is equipped on the outside of 4 upper end of hanging pup joint, annular convex platform 15 is in double public affairs
On 14 upper surface of pipe nipple, land 37 is equipped in 4 middle part of hanging pup joint, the suspension that 3 lower part of connector is sleeved on 37 top of land is short
In section 4, at least one flowing hole 16 of 3 top radial distribution of connector, 6 top of bearing holder (housing, cover) is fixedly mounted on the upper of hanging pup joint 4
On the outside of portion, the top of shunt connector 8 is located in hanging pup joint 4, and bearing 17 is equipped between shunt connector 8 and bearing holder (housing, cover) 6,
Bearing baffle ring 5 is installed on the outside of the upper end of shunt connector 8, the top of shunt connector 8 is circumferentially radially distributed at least one
A circulation port 18, the upper inner of the lower outside and piston bush 9 of shunt connector 8 are fixedly installed togather, 23 sets of piston body
Mounted in the inside of piston bush 9 and pass through sealing ring 36 and seal, be circumferentially radially provided at 9 middle part of piston bush on 23 top of piston body to
Few two relief holes 24,9 lower end inside of piston bush are installed with ball seat 25, and 25 upper end of ball seat is equipped with steel ball 26, under piston bush 9
End outside and 11 upper end of inner cylinder are fixedly installed togather, and 10 top of piston rod is sleeved in shunt connector 8, and 10 lower part of piston rod is consolidated
Dingan County is in piston body 23.The number of flowing hole 16, circulation port 18 and pressure relief vent 24 operates feelings according to specific actual production
Condition needs to set corresponding number；Core grabber 34 and drill bit 12 are existing known technology.
The quick coring apparatus of above-mentioned oil drilling can be made further optimization and/or improvements according to actual needs：
As shown in Figure 1, for the ease of using, 14 upper end of double male joint is installed with connector 13, and 13 upper end of connector is consolidated
Dingan County is equipped with lifting sub 2.As needed, for the ease of rope is used to propose lifting rod 1, lifting is stretched out in 1 upper end of lifting rod
Pipe nipple 2 is apart from being 15 millimeters to 25 millimeters.
As shown in Figure 1,8 middle part of shunt connector is installed with loop coil 19, and 8 lower part of shunt connector is equipped with downward opening
Lower groove 20,19 lower end of loop coil are installed with snap ring 21, and snap ring 21 is equipped with boss 22, and boss 22 is stuck in lower groove 20.
Boss 22 plays the role of anti-rotation.
As shown in Figure 2, for the ease of effectively sealing, sealing ring 36 is provided between core grabber set 29 and drill bit 12.
As shown in Figure 2, for the ease of installation and removal, 1 lower end of lifting rod is threadably secured with connector 3 to be mounted on
Together, it is threadably secured between outer barrel 7 and drill bit 12 and protection connector 27 is installed.
As shown in attached drawing 1,2, for the ease of installation and removal, 2 lower end of lifting sub and 13 upper end of top connection pass through screw thread
It is fixedly installed togather, 13 lower end of top connection and 14 upper end of double male joint are threadably secured and are installed together, 4 He of hanging pup joint
Bearing holder (housing, cover) 6, which is threadably secured, to be installed together, and 14 lower end of double male joint and 7 upper end of outer barrel are threadably secured mounted on one
It rises, 9 lower end outside of piston bush and 11 upper end of inner cylinder are threadably secured and are installed together, 11 lower end outside of inner cylinder and pawl bell and spigot joint
28 are threadably secured and are installed together, and pawl bell and spigot joint 28 and core grabber set 29 are threadably secured and are installed together.
More than technical characteristic constitutes highly preferred embodiment of the present invention, is imitated with stronger adaptability and best implementation
Fruit can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
In use, after well head assembles the present invention and be perfused after sealing fluid it is lower bore, under be drilled into shaft bottom, bottom-hole cleaning,
It transfers pipe string and cuts pin 32, as rock core enters inner cylinder 11, sealing fluid is discharged in equal volume from inner cylinder 11 and rock core gap, package
Rock core is not by mud contamination.The stifled heart piston rod 10,23 uplink of piston body when inner cylinder is caused to build the pressure are being encountered, sealing ring 36 is in mud
It is easily destroyed under slurry solid phase particles and landwaste effect, and steel ball 26 separates mud with inner cylinder 11, prevents mud from being put with sealing fluid
It changes, even if upper sealing gasket 36 fails, under 26 gravity of steel ball, pressure carries out pressure release by relief hole 24 in inner cylinder 11,
11 pressure balance of inner cylinder is kept, ensures that inner cylinder 11 is closed.End of coring carries coring tool to well head, and elevator is short mounted in being promoted
On section 2, quick coring tool is lifted, check 34 pawl mood condition of core grabber and clears up drill bit 12 in time, tool is transferred after processing, unloads
Top connection 13 and double male joint 14 are opened, lifting rod 1 is above carried with rope can propose component in inner cylinder 11 and subsequently be gone out the heart
Operation.
Claims (10)
1. a kind of quick coring apparatus of oil drilling, it is characterised in that including lifting rod, connector, hanging pup joint, bearing baffle ring,
Bearing holder (housing, cover), outer barrel, shunt connector, piston bush, piston rod, inner cylinder, drill bit, double male joint, bearing, piston body and sealing ring, carry
Pull rod lower end is fixedly mounted in connector, and double male joint lower end and outer barrel upper end are fixedly installed togather, outer barrel lower end outside
Drill bit is installed with, inner cylinder is located in outer barrel and drill bit, and the lower end outside of inner cylinder is installed with pawl bell and spigot joint, pawl bell and spigot joint
Lower end outside is installed with the core grabber set that lower inside is in taper type wide at the top and narrow at the bottom, and core grabber set stop collar is mounted in drill bit wall
On, core grabber is set in core grabber set, the baffle ring held out against by pawl bell and spigot joint, pawl bell and spigot joint and baffle ring are equipped at the top of core grabber
Inner sleeve is equipped with seal, and seal is linked together with baffle ring by pin, and seal lower part is installed with closed bar, bores
Axial drilling fluid circulation port is provided on head, is equipped with annular convex platform on the outside of hanging pup joint upper end, convex annular pedestal is in double male joint
On upper surface, interior in the middle part of hanging pup joint to be equipped with land, connector lower part is sleeved in the hanging pup joint above land, on connector
At least one flowing hole of portion's radial distribution, bearing holder (housing, cover) top are fixedly mounted on the upper outside of hanging pup joint, shunt connector it is upper
Portion is located in hanging pup joint, and bearing is equipped between shunt connector and bearing holder (housing, cover), the fixed peace on the outside of the upper end of shunt connector
Equipped with bearing baffle ring, the top of shunt connector is circumferentially radially distributed at least one circulation port, outside the lower part of shunt connector
The upper inner of side and piston bush is fixedly installed togather, and piston body is sleeved on the inside of piston bush and is sealed by sealing ring,
At least two relief holes are circumferentially radially provided in the middle part of the piston bush on piston body top, piston bush lower end inside is installed with ball
Seat, ball seat upper end are equipped with steel ball, and piston bush lower end outside and inner cylinder upper end be fixedly installed togather, and piston rod top is sleeved on point
It flows in connector, underpart of the piston rod is fixedly mounted in piston body.
2. the quick coring apparatus of oil drilling according to claim 1, it is characterised in that double male joint upper end is fixedly mounted
There is connector, connector upper end is installed with lifting sub.
3. the quick coring apparatus of oil drilling according to claim 2, it is characterised in that be fixedly mounted in the middle part of shunt connector
There is loop coil, shunt connector lower part is equipped with downward opening lower groove, and loop coil lower end is installed with snap ring, and snap ring is equipped with convex
Platform, boss are stuck in lower groove.
4. the quick coring apparatus of oil drilling according to claims 1 or 2 or 3, it is characterised in that core grabber covers and drill bit
Between be provided with sealing ring.
5. the quick coring apparatus of oil drilling according to claims 1 or 2 or 3, it is characterised in that lifting rod lower end and company
Connector, which is threadably secured, to be installed together, and is threadably secured between outer barrel and drill bit and is equipped with protection connector.
6. the quick coring apparatus of oil drilling according to claim 4, it is characterised in that lifting rod lower end leads to connector
It crosses to be screwed and be installed together, be threadably secured between outer barrel and drill bit and protection connector is installed.
7. the quick coring apparatus of oil drilling according to claims 1 or 2 or 3, it is characterised in that top connection lower end and double
Public pipe nipple upper end, which is threadably secured, to be installed together, and hanging pup joint and bearing holder (housing, cover) are threadably secured and are installed together, double public affairs
Pipe nipple lower end and outer barrel upper end are threadably secured and are installed together, and piston bush lower end outside and inner cylinder upper end are threadably secured
It is installed together, inner cylinder lower end outside and pawl bell and spigot joint are threadably secured and are installed together, and pawl bell and spigot joint and core grabber set are logical
It crosses to be screwed and be installed together.
8. the quick coring apparatus of oil drilling according to claim 4, it is characterised in that top connection lower end and double male joint
Upper end, which is threadably secured, to be installed together, and hanging pup joint and bearing holder (housing, cover) are threadably secured and are installed together, under double male joint
End and outer barrel upper end, which are threadably secured, to be installed together, and piston bush lower end outside and inner cylinder upper end are threadably secured and are mounted on
Together, inner cylinder lower end outside and pawl bell and spigot joint are threadably secured and are installed together, and pawl bell and spigot joint and core grabber set pass through screw thread
It is fixedly installed togather.
9. the quick coring apparatus of oil drilling according to claim 5, it is characterised in that top connection lower end and double male joint
Upper end, which is threadably secured, to be installed together, and hanging pup joint and bearing holder (housing, cover) are threadably secured and are installed together, under double male joint
End and outer barrel upper end, which are threadably secured, to be installed together, and piston bush lower end outside and inner cylinder upper end are threadably secured and are mounted on
Together, inner cylinder lower end outside and pawl bell and spigot joint are threadably secured and are installed together, and pawl bell and spigot joint and core grabber set pass through screw thread
It is fixedly installed togather.
10. the quick coring apparatus of oil drilling according to claim 6, it is characterised in that top connection lower end and double male joint
Upper end, which is threadably secured, to be installed together, and hanging pup joint and bearing holder (housing, cover) are threadably secured and are installed together, under double male joint
End and outer barrel upper end, which are threadably secured, to be installed together, and piston bush lower end outside and inner cylinder upper end are threadably secured and are mounted on
Together, inner cylinder lower end outside and pawl bell and spigot joint are threadably secured and are installed together, and pawl bell and spigot joint and core grabber set pass through screw thread
It is fixedly installed togather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004520.8A CN108266146B (en) | 2018-01-03 | 2018-01-03 | Quick coring device for petroleum drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004520.8A CN108266146B (en) | 2018-01-03 | 2018-01-03 | Quick coring device for petroleum drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266146A true CN108266146A (en) | 2018-07-10 |
| CN108266146B CN108266146B (en) | 2024-03-12 |
Family
ID=62773309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810004520.8A Active CN108266146B (en) | 2018-01-03 | 2018-01-03 | Quick coring device for petroleum drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266146B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617022A (en) * | 2019-10-24 | 2019-12-27 | 四川康克石油科技有限公司 | Coring drilling tool with high coring rate and working method thereof |
| CN111720084A (en) * | 2020-06-30 | 2020-09-29 | 中国石油天然气集团有限公司 | Horizontal well is shunted linkage for coring |
| CN115717511A (en) * | 2021-08-24 | 2023-02-28 | 中国石油天然气集团有限公司 | Sealed shunt suspension device for coring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6341656B1 (en) * | 1997-07-08 | 2002-01-29 | Dresser Industries, Inc. | Core barrel |
| RU2198996C2 (en) * | 2001-02-06 | 2003-02-20 | Дочернее общество с ограниченной ответственностью "Буровая компания открытого акционерного общества "ГАЗПРОМ" | Core barrel |
| RU2318981C1 (en) * | 2006-06-23 | 2008-03-10 | Андрей Васильевич Секисов | Core-taking tool |
| CN201050318Y (en) * | 2007-05-22 | 2008-04-23 | 辽河石油勘探局 | Loose ground closed core-picking tool |
| CN202381007U (en) * | 2011-12-27 | 2012-08-15 | 中国石油集团西部钻探工程有限公司 | Floating piston |
| CN105927175A (en) * | 2016-06-30 | 2016-09-07 | 中国石油集团西部钻探工程有限公司 | Locking jaw suspension type pressurized coring device |
| CN105952405A (en) * | 2016-06-30 | 2016-09-21 | 中国石油集团西部钻探工程有限公司 | Floating piston device for coring |
| CN207905750U (en) * | 2018-01-03 | 2018-09-25 | 中国石油集团西部钻探工程有限公司 | The quick coring apparatus of oil drilling |
-
2018
- 2018-01-03 CN CN201810004520.8A patent/CN108266146B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6341656B1 (en) * | 1997-07-08 | 2002-01-29 | Dresser Industries, Inc. | Core barrel |
| RU2198996C2 (en) * | 2001-02-06 | 2003-02-20 | Дочернее общество с ограниченной ответственностью "Буровая компания открытого акционерного общества "ГАЗПРОМ" | Core barrel |
| RU2318981C1 (en) * | 2006-06-23 | 2008-03-10 | Андрей Васильевич Секисов | Core-taking tool |
| CN201050318Y (en) * | 2007-05-22 | 2008-04-23 | 辽河石油勘探局 | Loose ground closed core-picking tool |
| CN202381007U (en) * | 2011-12-27 | 2012-08-15 | 中国石油集团西部钻探工程有限公司 | Floating piston |
| CN105927175A (en) * | 2016-06-30 | 2016-09-07 | 中国石油集团西部钻探工程有限公司 | Locking jaw suspension type pressurized coring device |
| CN105952405A (en) * | 2016-06-30 | 2016-09-21 | 中国石油集团西部钻探工程有限公司 | Floating piston device for coring |
| CN207905750U (en) * | 2018-01-03 | 2018-09-25 | 中国石油集团西部钻探工程有限公司 | The quick coring apparatus of oil drilling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617022A (en) * | 2019-10-24 | 2019-12-27 | 四川康克石油科技有限公司 | Coring drilling tool with high coring rate and working method thereof |
| CN111720084A (en) * | 2020-06-30 | 2020-09-29 | 中国石油天然气集团有限公司 | Horizontal well is shunted linkage for coring |
| CN115717511A (en) * | 2021-08-24 | 2023-02-28 | 中国石油天然气集团有限公司 | Sealed shunt suspension device for coring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108266146B (en) | 2024-03-12 |
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