CN108266148A - A kind of coring pressurize short circuit - Google Patents
A kind of coring pressurize short circuit Download PDFInfo
- Publication number
- CN108266148A CN108266148A CN201810202892.1A CN201810202892A CN108266148A CN 108266148 A CN108266148 A CN 108266148A CN 201810202892 A CN201810202892 A CN 201810202892A CN 108266148 A CN108266148 A CN 108266148A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- coring
- pressurize
- inner cylinder
- block
- 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
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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/18—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being specially adapted for operation under water
-
- 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
- E21B25/10—Formed core retaining or severing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The present invention relates to a kind of coring pressurize short circuits, belong to coring pressurize technical field of tools.The short circuit includes outer barrel, intermediate cylinder, inner cylinder and piston, and outer barrel is interior to be equipped with intermediate cylinder by shear pin, and inner cylinder is movably installed in intermediate cylinder；Piston is slidably fitted in inner cylinder.The coring pressurize short-circuit structure is simple, practicability is good, it is complicated to solve traditional pressurize coring device, and existing pressurize coring device is sealed using ball valve or by the way of renovating, although sealing means work well but its structure is more complicated, and have location of the coring procedure cannot cut rock core the problem of；The coring pressurize short circuit can follow drill bit to reach any position, be not limited to vertical well, be used especially suitable for coring pressurize operation.
Description
Technical field
The present invention relates to a kind of coring pressurize short circuits, belong to coring pressurize technical field of tools.
Background technology
As the mankind are increasingly turned to the exploitation of petroleum resources at deep-sea, but since the depth of water that there is upper km at deep-sea is difficult direct
The oil amount of storage under deep water stratum is measured, while the pressure under the stratum of deep-sea is very big, needs to carry out pressurize to it in coring
Prevent rock core from changing its internal structure due to the variation of ambient pressure, this also has the research of stratum depths material properties of rock
It is of great importance.
At present, traditional pressurize coring device is complicated, and for the sealing of coring tube in pressurize coring device, generally
It is to seal using ball valve or by the way of renovating, although sealing means work well, its structure is more complicated, and has and taking
Core process cannot be to deficiency that rock core is cut.
Invention content
It is an object of the invention to：Offer is a kind of simple in structure, and practicability is good, can actively cut rock core, and can grow
Time pressurize seals, so as to ensure the internal structure of rock core to accurately reflect the coring pressurize short circuit of stratum storage capacity.
The technical scheme is that：
A kind of coring pressurize short circuit, including outer barrel, intermediate cylinder, inner cylinder and piston, it is characterised in that：Pass through shear pin in outer barrel
Intermediate cylinder is installed, inner cylinder is movably installed in intermediate cylinder；Stepped hole, the lower port of stepped hole are provided on the intermediate cylinder
Internal thread is equipped with supporting block, and the intermediate cylinder stepped hole internal thread above supporting block is equipped with intermediate mass, intermediate mass and supporting block
Between be provided with cutting cube, the intermediate cylinder internal thread above intermediate mass is equipped with interior cylinder base, on the top of interior cylinder base and inner wall point
Interior cylinder base ball is not movably installed with by ball annular groove, interior cylinder base is connect by interior cylinder base ball with inner cylinder sliding contact, interior
Symmetry shape is radially provided with pressurizing port in the lower port of cylinder, and the top of pressurizing port is equipped with upper packing element by upper slip pushing block, beats
Press the lower section in hole that lower rubber cylinder is installed by lower slider pushing block, screw thread is equipped with fixed block on the inner cylinder at the top of upper packing element, fixed
Block is connected with upper packing element, and piston is slidably fitted in the inner cylinder above fixed block.
Screw thread is equipped with drive block on outer tube inner wall below the shear pin, is set on the corresponding intermediate cylinder of drive block
Sliding slot is equipped with, drive block is connect by sliding slot with intermediate cylinder sliding contact.
The supporting block is ring bodies, and the centre bore internal thread of supporting block is equipped with baffle ring, the supporting block on the outside of baffle ring
Supporting block mounting groove is symmetrically arranged on end face.
The cutting cube is bullet, and one end of cutting cube is provided with cutting teeth, and the other end of cutting cube is provided with recessed
Mouthful, the bottom of cutting cube is provided with cutting cube mounting groove, passes through supporting block mounting groove and cutting cube between supporting block and cutting cube
The cooperation of mounting groove is equipped with lower push the spring.
Interconnected high pressure runner hole is respectively arranged on the interior cylinder base and intermediate mass.
The inner cylinder is circumferentially spaced about to be provided with inner cylinder ball, and inner cylinder is connected by inner cylinder ball and intermediate cylinder sliding contact
It connects, the inner cylinder between inner cylinder ball is circumferentially spaced about to be provided with venthole.
Mutual sliding gomphosis connection between the upper slip pushing block and lower slider pushing block, upper slip pushing block, lower slider push away
In block and inner cylinder corresponding with upper slip pushing block, lower slider pushing block not on be respectively arranged with ratchet, upper slip pushing block and lower slider
It is slidably connected between pushing block and inner cylinder by the cooperation of ratchet.
The intermediate cylinder is made of intermediate cylinder ontology and fragmenting plate, and symmetry shape is fixed with point on the circumference of intermediate cylinder ontology
Cut plate, at the top of fragmenting plate between intermediate cylinder ontology end face on be symmetrically arranged with card slot, is installed in card slot by locating cover activity
There is baffler.
The locating cover is annular in shape, and the provided circumferentially about of locating cover has external screw thread, the lower surface of locating cover and baffler
Upper surface correspond to shape and be provided with fitting groove, upper push the spring is housed in fitting groove.
It is provided with interconnected upper pressurizing port on the baffler and intermediate cylinder ontology, the barrier below upper pressurizing port
Lower pressurizing port is provided on plate, lower pressurizing port is set with cutting cube in corresponding shape.
The outer barrel upper end is provided with air storage chamber, and upper inlet valve is provided on the outside of upper air storage chamber, upper air storage chamber
Inside is provided with upper chamber intercommunicating pore, upper chamber intercommunicating pore and upper pressurizing port intermittent communication.
The outer barrel lower end is provided with lower air storage chamber, and lower inlet valve is provided on the outside of lower air storage chamber, lower air storage chamber
Inside is provided with lower chamber intercommunicating pore, lower chamber intercommunicating pore and lower pressurizing port intermittent communication.
The beneficial effects of the present invention are：
1st, it is equipped with inner cylinder ball around inner cylinder of the invention, inner cylinder can not be avoided when the torsion with drill string rotation to core during work
Generate damage；
2nd, cutting, sealing and pressurize of the invention can be triggered after coring is completed and actively run；
3rd, the present invention can follow drill bit to reach any position, vertical well is not limited to, suitable for most of type coring pressurizes
Operation.
Description of the drawings
Fig. 1 is the overlooking the structure diagram of the present invention；
Fig. 2 be Fig. 1 in A-A to cross section structure schematic diagram；
Fig. 3 be Fig. 1 in B-B to cross section structure schematic diagram；
Fig. 4 is enlarged structure schematic diagram at the A in Fig. 3；
Fig. 5 be Fig. 1 in C-C to cross section structure schematic diagram；
Fig. 6 is enlarged structure schematic diagram at the A in Fig. 5；
Fig. 7 is the structure diagram of the cutting cube of the present invention；
Fig. 8 is the structure diagram of the intermediate cylinder of the present invention；
Fig. 9 is the cross section structure schematic diagram of the interior cylinder base of the present invention.
In figure：1st, outer barrel, 2, intermediate cylinder, 3, inner cylinder, 4, piston, 5, shear pin, 6, supporting block, 7, baffle ring, 8, intermediate
Block, 9, cutting cube, 10, drive block, 11, sliding slot, 12, cutting teeth, 13, recess, 14, cutting cube mounting groove, 15, lower promotion bullet
Spring, 16, interior cylinder base, 17, interior cylinder base ball, 18, high pressure runner hole, 19, pressurizing port, 20, upper slip pushing block, 21, upper packing element,
22nd, lower slider pushing block, 23, lower rubber cylinder, 24, fixed block, 25, inner cylinder ball, 26, venthole, 27, intermediate cylinder ontology, 28, segmentation
Plate, 29, baffler, 30, locating cover, 31, upper push the spring, 32, annular fiowpath, 33, upper pressurizing port, 34, lower pressurizing port, 35,
Upper air storage chamber, 36, upper inlet valve, 37, upper chamber intercommunicating pore, 38, lower air storage chamber, 39, lower inlet valve, 40, lower chamber intercommunicating pore,
41st, ball annular groove.
Specific embodiment
The coring pressurize short circuit includes outer barrel 1, intermediate cylinder 2, inner cylinder 3 and piston 4, is installed in outer barrel 1 by shear pin 5
There is an intermediate cylinder 2, screw thread is equipped with drive block 10,10 corresponding intermediate cylinder 2 of drive block on 1 inner wall of outer barrel of 5 lower section of shear pin
On be provided with sliding slot 11, drive block 10 is connect by sliding slot 11 with 2 sliding contact of intermediate cylinder.Sliding slot 11 can play one to drive block 10
A axial limiting effect, to limit the axial stroke of drive block 10, and then limits the axial stroke of intermediate cylinder 2.
It is movably installed in intermediate cylinder 2 on 3. intermediate cylinder 2 of inner cylinder and is provided with stepped hole, the lower port internal thread of stepped hole
Supporting block 6 is installed, supporting block 6 is ring bodies, and the centre bore internal thread of supporting block 6 is equipped with baffle ring 7, the branch in 7 outside of baffle ring
Bracer is symmetrically arranged with supporting block mounting groove on 6 end face.
The 2 stepped hole internal thread of intermediate cylinder of 6 top of supporting block is equipped with cricoid intermediate mass 8, intermediate mass 8 and supporting block 6
Between be provided with cutting cube 9, cutting cube 9 is bullet, and one end of cutting cube 9 is provided with cutting teeth 12, the other end of cutting cube 9
Recess 13 is provided with, the bottom of cutting cube 9 is provided with cutting cube mounting groove 14, passes through supporting block between supporting block 6 and cutting cube 9
The cooperation of mounting groove and cutting cube mounting groove 14 is equipped with lower push the spring 15.In the course of work, cutting cube 9 is under external force
It can be along mounting groove slid inward.
2 internal thread of intermediate cylinder of 8 top of intermediate mass is equipped with interior cylinder base 16, is set respectively on interior cylinder base 16 and intermediate mass 8
There is interconnected high pressure runner hole 18.The top of interior cylinder base 16 and inner wall are movably installed with inner cylinder by ball annular groove 41 respectively
Seat ball 17, interior cylinder base 16 connect by interior cylinder base ball 17 with 3 sliding contact of inner cylinder, inner cylinder 3 is circumferentially spaced about be provided with it is interior
Cylinder ball 25, inner cylinder 3 is connect by inner cylinder ball 25 with 2 sliding contact of intermediate cylinder, on 3 circumference of inner cylinder between inner cylinder ball 25
It is arranged at intervals with venthole 26.
Symmetry shape is radially provided with pressurizing port 19 in the lower port of inner cylinder 3, and pressurizing port 19 is connected with high pressure runner hole 18；It beats
Press the top in hole 19 that upper packing element 21 is installed by upper slip pushing block 20, the lower section of pressurizing port 19 is installed by lower slider pushing block 22
There is a lower rubber cylinder 23, screw thread is equipped with cricoid fixed block 24 on the inner cylinder 3 at upper 21 top of packing element, and fixed block 24 connects with upper packing element 21
Connection is touched, mutually sliding gomphosis connection between upper slip pushing block 20 and lower slider pushing block 22, upper slip pushing block 20, lower slider pushing block
22 and with upper slip pushing block 20, in 22 corresponding inner cylinder 3 of lower slider pushing block not on be respectively arranged with ratchet, upper slip 20 He of pushing block
It is slidably connected between lower slider pushing block 22 and inner cylinder 3 by the cooperation of ratchet, in the course of work, upper slip pushing block 20 and lower slider
Pushing block 22 can move up and down respectively under external force, but cannot reset, thus by upper slip pushing block 20 and lower slider pushing block
22 lockings.Piston 4 is slidably fitted in the inner cylinder 3 of 24 top of fixed block.
The intermediate cylinder 2 of the coring pressurize short circuit is made of intermediate cylinder ontology 27 and fragmenting plate 28, the circle of intermediate cylinder ontology 27
Symmetry shape is fixed with fragmenting plate 28 on week, is symmetrically arranged on 27 end face of intermediate cylinder ontology between 28 top of fragmenting plate fan-shaped
Card slot, card slot is interior to be movably installed with fan-shaped baffler 29 by locating cover 30.
Locating cover 30 is annular in shape, and the provided circumferentially about of locating cover 30 has external screw thread, for the connection with fragmenting plate 28, positioning
The lower surface of lid 30 and the upper surface of baffler 29 correspond to shape and are provided with fitting groove, and upper push the spring 31 is housed in fitting groove.In
Between after cylinder 2 completes assembling in the outer barrel 1, the inner wall of the clearance fit outer barrel 1 between fragmenting plate 28 can be formed to be led to for drill-in fluid
The annular fiowpath 32 crossed, under normal condition, baffler 29 under the action of upper push the spring 31 in inside contraction state, so as to protect
The unimpeded of annular fiowpath is demonstrate,proved, baffler 29 extends outward under external force, so as to form envelope to the upper port of annular fiowpath 32
It is stifled.
Interconnected upper pressurizing port 33, the resistance of upper 33 lower section of pressurizing port are provided on baffler 29 and intermediate cylinder ontology 27
Lower pressurizing port 34 is provided on partition board 29, lower pressurizing port 34 is set with cutting cube 9 in corresponding shape.
1 upper end of outer barrel of the coring pressurize short circuit is provided with air storage chamber 35, and the outside of upper air storage chamber 35 is provided with enterprising
Air valve 36, the inside of upper air storage chamber 35 are provided with upper chamber intercommunicating pore 37, and upper chamber intercommunicating pore 37 connects with upper 33 interval of pressurizing port
It is logical.
1 lower end of outer barrel is provided with lower air storage chamber 38, and the outside of lower air storage chamber 38 is provided with lower inlet valve 39, lower air storage chamber 38
Inside be provided with lower chamber intercommunicating pore 40, lower chamber intercommunicating pore 40 and lower 34 intermittent communication of pressurizing port.
Internal thread is respectively arranged on the port inner wall at 1 both ends of outer barrel of the coring pressurize short circuit, for drill string and taking
The connection of core drill bit, and drill bit is followed to transfer to designated position and starts coring of spudding in, drilling fluid through annular fiowpath 32 act on to
On drill bit, during core-drilling, rock core can be cut by cutting cube 9 and pressurize, specially：
Prestore high pressure gas in upper air storage chamber 35 and lower air storage chamber 38 first on outer barrel 1；The high pressure gas of upper air storage chamber 35
For providing pressure for inner cylinder 3 to realize to core pressurize, the high pressure gas of lower air storage chamber 38 is used to carry for cutting cube 9 and packing element
Arch thrust.In the course of work, drill string drives coring bit to rotate by outer barrel 1, and outer barrel 1 drives intermediate cylinder 2 by drive block 10
Rotation, core slowly enter in inner cylinder 3, inner cylinder ball 25 are provided with since inner cylinder 3 is circumferentially spaced about, inner cylinder 3 is rolled by inner cylinder
Pearl 25 connect with 2 sliding contact of intermediate cylinder, as core enters in inner cylinder 3, under the drag effect of core, inner cylinder 3 relative to
Intermediate cylinder 2 is in stationary state, that is, inner cylinder 3 is not rotated with intermediate cylinder 2, thus can prevent the core in location of the coring procedure from being twisted off；With
It core constantly to enter in inner cylinder 3, core gradually pushes 4 uplink of piston, until stretching in centre bore of the piston 4 by locating cover 30
Go out；During piston 4 is stretched out by the centre bore of locating cover 30, baffler 29 is squeezed, it is forced to extend outward along fitting groove, from
And the upper port of annular fiowpath 32 is formed and is blocked.
After baffler 29 forms closure to the upper port of annular fiowpath 32, that is, show that the runner of drilling fluid is truncated, at this point,
Drilling fluid is formed above locating cover 30 and is built the pressure；Shear pin 5 after pressure reaches certain value between intermediate cylinder 2 and outer barrel 1
It is cut off, intermediate cylinder 2, inner cylinder 3 are entirely through 11 downlink of sliding slot.
When the top dead centre of sliding slot 11 is contacted with drive block 10, the whole downlink of intermediate cylinder 2, inner cylinder 3 stops, at this point, upper gas
Room intercommunicating pore 37 coincide with upper pressurizing port 33 to be connected, and lower chamber intercommunicating pore 40 coincide with lower pressurizing port 34 to be connected.
Upper chamber intercommunicating pore 37 and upper pressurizing port 33 coincide connect after, the high pressure gas in upper air storage chamber 35 connects through upper chamber
Through-hole 37, upper pressurizing port 33 enter to the gap between intermediate cylinder 2 and inner cylinder 3, then enter to inner cylinder 3 by venthole 26
It is interior, so as to fulfill provide pressure for inner cylinder 3 with realize cutting complete core after pressurize purpose.
Gas chamber intercommunicating pore 40 and lower pressurizing port 34 coincide connect after, the high pressure gas in lower air storage chamber 38 is connected through lower chamber
Hole 40, lower pressurizing port 34 are acted on to the recess 13 of cutting cube 9, thus push cutting cube 9, opposite to move ahead（It shrinks）, thus make
The cutting teeth 12 of cutting cube 9 further comes into full contact with core, and during this, cutting cube 9 is to the high pressure runner hole of intermediate mass 8
The sealed condition of 18 lower ports releases, and 18 lower port of high pressure runner hole of intermediate mass 8 is in opening-wide state, through lower chamber intercommunicating pore
40th, the high pressure gas that lower pressurizing port 34 enters is entered by 18 lower port of high pressure runner hole of intermediate mass 8, then through interior cylinder base 16
High pressure runner hole 18 enter in the pressurizing port 19 of inner cylinder 3.
The high pressure gas entered in pressurizing port 19 pushes upper 20 uplink of slip pushing block of 19 top of pressurizing port so as to compress
Upper packing element 21 makes it generate deformation, thus holds the rock core of 19 top of pressurizing port tightly and realizes sealing, meanwhile, enter to pressurizing port 19
Interior high pressure gas pushes 22 downlink of lower slider pushing block of 19 lower section of pressurizing port it to be made to generate deformation so as to compress lower rubber cylinder 23, by
This holds the rock core of 19 lower section of pressurizing port tightly and realizes sealing.
Pushing block 20,22 corresponding inner cylinder 3 of lower slider pushing block are slided due to upper slip pushing block 20, lower slider pushing block 22 and with upper
Inside not on be respectively arranged with ratchet, upper slide passes through the cooperation of ratchet and slides between pushing block 20 and lower slider pushing block 22 and inner cylinder 3
Connection, the upper upper packing element 21 of slip pushing block 20 uplink compression make it generate after deformation and the lower glue of 22 downlink of lower slider pushing block compression
After cylinder 23 makes it generate deformation, under the action of the ratchet on slide pushing block 20 and lower slider pushing block 22 is respectively formed self-locking, thus
The compressive state of packing element 21 and lower rubber cylinder 23 in holding.
At the same time, during cutting cube 9 is rotated with intermediate cylinder 2, gradually the rock core entered in the short circuit is cut off, is risen
Rock core can be taken out after brill.The coring pressurize short-circuit structure is simple, and practicability is good, solves traditional pressurize coring device structure
Complexity and existing pressurize coring device are sealed using ball valve or by the way of renovating, although sealing means work well it
Structure is more complicated, and has location of the coring procedure cannot cut rock core the problem of；The coring pressurize short circuit can follow brill
Head reaches any position, is not limited to vertical well, is used especially suitable for coring pressurize operation.
Claims (10)
1. a kind of coring pressurize short circuit, including outer barrel（1）, intermediate cylinder（2）, inner cylinder（3）And piston（4）, it is characterised in that：Outer barrel
（1）Inside pass through shear pin（5）Intermediate cylinder is installed（2）, intermediate cylinder（2）Inside it is movably installed with inner cylinder（3）；The intermediate cylinder
（2）On be provided with stepped hole, the lower port internal thread of stepped hole is equipped with supporting block（6）, supporting block（6）The intermediate cylinder of top
（2）Stepped hole internal thread is equipped with intermediate mass（8）, intermediate mass（8）With supporting block（6）Between be provided with cutting cube（9）, intermediate mass
（8）The intermediate cylinder of top（2）Internal thread is equipped with interior cylinder base（16）, interior cylinder base（16）Top and inner wall on pass through ball respectively
Annular groove（41）It is movably installed with interior cylinder base ball（17）, interior cylinder base（16）Pass through interior cylinder base ball（17）With inner cylinder（3）Slip connects
Touch connection, inner cylinder（3）Lower port on symmetry shape radially be provided with pressurizing port（19）, pressurizing port（19）Top pass through upper slip
Pushing block（20）Packing element is installed（21）, pressurizing port（19）Lower section pass through lower slider pushing block（22）Lower rubber cylinder is installed（23）,
Upper packing element（21）, the inner cylinder at top（3）Upper screw thread is equipped with fixed block（24）, fixed block（24）With upper packing element（21）Contact connects
It connects, fixed block（24）The inner cylinder of top（3）Inside it is slidably fitted with piston（4）.
2. a kind of coring pressurize short circuit according to claim 1, it is characterised in that：The shear pin（5）Lower section
Outer barrel（1）Screw thread is equipped with drive block on inner wall（10）, drive block（10）Corresponding intermediate cylinder（2）On be provided with sliding slot（11）,
Drive block（10）Pass through sliding slot（11）With intermediate cylinder（2）Sliding contact connects.
3. a kind of coring pressurize short circuit according to claim 1, it is characterised in that：The supporting block（6）For ring bodies,
Supporting block（6）Centre bore internal thread baffle ring is installed（7）, baffle ring（7）The supporting block in outside（6）Branch is symmetrically arranged on end face
Bracer mounting groove；The cutting cube（9）For bullet, cutting cube（9）One end be provided with cutting teeth（12）, cutting cube（9）
The other end be provided with recess（13）, cutting cube（9）Bottom be provided with cutting cube mounting groove（14）, supporting block（6）With cutting
Block（9）Between pass through supporting block mounting groove and cutting cube mounting groove（14）Cooperation lower push the spring is installed（15）.
4. a kind of coring pressurize short circuit according to claim 1, it is characterised in that：The interior cylinder base（16）And intermediate mass
（8）On be respectively arranged with interconnected high pressure runner hole（18）；The inner cylinder（3）It is circumferentially spaced about to be provided with inner cylinder ball
（25）, inner cylinder（3）Pass through inner cylinder ball（25）With intermediate cylinder（2）Sliding contact connects, inner cylinder ball（25）Between inner cylinder（3）
It is circumferentially spaced about to be provided with venthole（26）.
5. a kind of coring pressurize short circuit according to claim 1, it is characterised in that：The upper slip pushing block（20）With under
Slide pushing block（22）Between mutually sliding gomphosis connection, upper slip pushing block（20）, lower slider pushing block（22）With with upper slip pushing block
（20）, lower slider pushing block（22）Corresponding inner cylinder（3）Ratchet, upper slip pushing block are respectively arranged on inner wall（20）It is pushed away with lower slider
Block（22）With inner cylinder（3）Between be slidably connected by the cooperation of ratchet.
6. a kind of coring pressurize short circuit according to claim 2, it is characterised in that：The intermediate cylinder（2）By intermediate cylinder
Ontology（27）And fragmenting plate（28）It forms, intermediate cylinder ontology（27）Circumference on symmetry shape be fixed with fragmenting plate（28）, fragmenting plate
（28）Intermediate cylinder ontology between top（27）Card slot is symmetrically arranged on end face, passes through locating cover in card slot（30）Activity installation
There is baffler（29）.
7. a kind of coring pressurize short circuit according to claim 6, it is characterised in that：The locating cover（30）Annularly,
Locating cover（30）Provided circumferentially about have external screw thread, locating cover（30）Lower surface and baffler（29）Upper surface correspond to shape and set
Fitting groove is equipped with, upper push the spring is housed in fitting groove（31）.
8. a kind of coring pressurize short circuit according to claim 7, it is characterised in that：The baffler（29）And intermediate cylinder
Ontology（27）On be provided with interconnected upper pressurizing port（33）, upper pressurizing port（33）The baffler of lower section（29）On be provided with down
Pressurizing port（34）, lower pressurizing port（34）With cutting cube（9）It is set in corresponding shape.
9. a kind of coring pressurize short circuit according to claim 1, it is characterised in that：The outer barrel（1）Upper end is provided with
Upper air storage chamber（35）, upper air storage chamber（35）Outside be provided with upper inlet valve（36）, upper air storage chamber（35）Inside be provided with
Gas chamber intercommunicating pore（37）, upper chamber intercommunicating pore（37）With upper pressurizing port（33）Intermittent communication.
10. a kind of coring pressurize short circuit according to claim 1, it is characterised in that：The outer barrel（1）Lower end is provided with
Lower air storage chamber（38）, lower air storage chamber（38）Outside be provided with lower inlet valve（39）, lower air storage chamber（38）Inside be provided with down
Gas chamber intercommunicating pore（40）, lower chamber intercommunicating pore（40）With lower pressurizing port（34）Intermittent communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202892.1A CN108266148B (en) | 2018-03-13 | 2018-03-13 | Coring pressure-maintaining short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202892.1A CN108266148B (en) | 2018-03-13 | 2018-03-13 | Coring pressure-maintaining short circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266148A true CN108266148A (en) | 2018-07-10 |
| CN108266148B CN108266148B (en) | 2023-08-15 |
Family
ID=62774713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810202892.1A Active CN108266148B (en) | 2018-03-13 | 2018-03-13 | Coring pressure-maintaining short circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266148B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB693379A (en) * | 1950-10-19 | 1953-07-01 | Anglo Iranian Oil Co Ltd | Improvements relating to pressure core takers |
| CN203626674U (en) * | 2013-11-19 | 2014-06-04 | 中国石油集团长城钻探工程有限公司 | Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting |
| CN104179469A (en) * | 2014-08-07 | 2014-12-03 | 中国海洋石油总公司 | Active pressure maintaining and coring tool and use method thereof |
| CN105041252A (en) * | 2015-07-30 | 2015-11-11 | 中国石油集团长城钻探工程有限公司 | Internally-lifting safety assembly for pressure-maintaining coring |
| CN107514240A (en) * | 2017-10-13 | 2017-12-26 | 四川大学 | A kind of high stability pressurize coring device automatically controlled |
-
2018
- 2018-03-13 CN CN201810202892.1A patent/CN108266148B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB693379A (en) * | 1950-10-19 | 1953-07-01 | Anglo Iranian Oil Co Ltd | Improvements relating to pressure core takers |
| CN203626674U (en) * | 2013-11-19 | 2014-06-04 | 中国石油集团长城钻探工程有限公司 | Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting |
| CN104179469A (en) * | 2014-08-07 | 2014-12-03 | 中国海洋石油总公司 | Active pressure maintaining and coring tool and use method thereof |
| CN105041252A (en) * | 2015-07-30 | 2015-11-11 | 中国石油集团长城钻探工程有限公司 | Internally-lifting safety assembly for pressure-maintaining coring |
| CN107514240A (en) * | 2017-10-13 | 2017-12-26 | 四川大学 | A kind of high stability pressurize coring device automatically controlled |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108266148B (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105909202B (en) | A kind of core drill based on hydraulic pressure card coring | |
| CN102966327B (en) | Expansion tube | |
| CN104213864B (en) | Protective device for packer rubber tube | |
| CN202578634U (en) | Switching type rail sealing sliding sleeve | |
| CN203308428U (en) | Open hole well segmented pressure fracture packer | |
| CN205744381U (en) | Multilamellar is divided to adopt and is separated oil well pump | |
| CN104790903A (en) | Spanning type packer capable of achieving repeated setting | |
| CN207920566U (en) | A kind of coring pressurize short circuit | |
| CN103696727B (en) | Self-expandable packer | |
| CN103541700B (en) | Reverse sealed eccentric injection mandrel | |
| CN104389547B (en) | The extruding packing element of a kind of built-in metal component and processing technique thereof | |
| CN108266148A (en) | A kind of coring pressurize short circuit | |
| CN208106376U (en) | A kind of mechanical separate stratum fracturing packer of oil well band guiding | |
| CN210509101U (en) | Cement potting expansion type water stopper for geological drilling well | |
| CN201334889Y (en) | PT packer | |
| CN203022683U (en) | Composite rubber sleeve packer | |
| CN108825166A (en) | A kind of novel water injection packer | |
| CN205936508U (en) | Can shift and seal packer from testing | |
| CN202483512U (en) | Mechanical shifting valve | |
| CN2784580Y (en) | Hydraulic locking packer | |
| CN203285341U (en) | With-pressure wet drill coring bit | |
| CN204152476U (en) | Large pressure reduction crosses cable well packer capable of flushing well | |
| CN202483513U (en) | Sliding sleeve for separate layer reconstruction | |
| CN207161041U (en) | A kind of compression type open hole packer | |
| CN206707644U (en) | Hydraulic casing centralizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |