CN108716378A - A kind of mechanical switch cannula occlusion tool - Google Patents
A kind of mechanical switch cannula occlusion tool Download PDFInfo
- Publication number
- CN108716378A CN108716378A CN201810953710.4A CN201810953710A CN108716378A CN 108716378 A CN108716378 A CN 108716378A CN 201810953710 A CN201810953710 A CN 201810953710A CN 108716378 A CN108716378 A CN 108716378A
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- China
- Prior art keywords
- valve body
- central tube
- support
- ball valve
- pass
- Prior art date
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
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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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for setting packers
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The present invention relates to a kind of mechanical switch cannula occlusion tools, belong to oil, natural gas extraction drilling tool technical field.The mechanical switch cannula occlusion tool is made of sand prevention filter screen, lower contact, top connection and ball valve body：The lower contact that one end of the shell is connected through a screw thread is equipped with sand prevention filter screen；The other end of shell is threaded with top connection；Top connection internal whorl is connected with central tube；Stripper loop is fixed with by screw on the periphery of central tube；Stripper loop side is set with by rubber pad sets packing element；The stripper loop other side is threaded with slips；The mechanical switch cannula occlusion tool, it is ingenious in design；Solve the problems, such as that the operating procedure that existing calker has is complicated, security risk is high and cannot multiple operation, meet the needs of enterprise's production and application.
Description
Technical field
The present invention relates to a kind of mechanical switch cannula occlusion tools, belong to oil, natural gas extraction drilling tool technology neck
Domain.
Background technology
It in oil, natural gas exploration field, carries out in the processes such as kill-job, replacing well head, need to use cannula occlusion tool will
After down-hole casing blocks, then it is transformed operation.Existing calker is completed after blocking, and when being unsealed, needs first to suppress,
Blocking is shot down again, keeps casing unimpeded, then detection set overpressure.If there is normal pressure, first forward extrusion well, recycling blocks work
Tool grinds off calker brill.After this causes capping tools to block operation each time, be required for the calker more renewed or
It is proposed tool replaces blocking or blocks part, cannot multiple operation, therefore there are complex process, the activity duration is long, operation at
The problems such as this is high.Existing calker kills casing there is also locking tension simultaneously and well head suppresses the blocking for shooting down calker
When, pressure crosses conference and causes to damage to casing, and is blocked after suppressing and easily fall into underground, causes asking with security risk in well
Topic, it is therefore necessary to a kind of calker is researched and developed, to solve the problem above that existing calker has.
Invention content
It is an object of the invention to：It is simple in structure, ingenious in design to provide one kind, to solve the behaviour that existing calker has
Make complex process, security risk it is high and cannot multiple shop problem mechanical switch cannula occlusion tool.
The technical scheme is that：
A kind of mechanical switch cannula occlusion tool, it by sand prevention filter screen, lower contact, top connection, shell, central tube, set
Packing element, bottom sealing socket, upper seal support, valve body support and ball valve body are constituted；It is characterized in that：One end of the shell passes through
The lower contact of threaded connection is equipped with sand prevention filter screen；The other end of shell is threaded with top connection；Circle outside top connection
Multiple lower brake pads are evenly arranged on circumferential surface；Top connection internal whorl is connected with central tube；Pass through on the periphery of central tube
Screw is fixed with stripper loop；Stripper loop side is set with by rubber pad sets packing element；Set packing element one end and the end of top connection
Head contradicts connection；It sets the packing element other end and contradicts connection with stripper loop；The stripper loop other side is threaded with slips；Slips circumference
Multiple upper brake pads are evenly arranged on face；Ball valve is equipped with by screw and valve body support activity in the shell of central tube side
Body；Sliding is equipped with and stirs pin frame on valve body support；It is equipped with down by lower sleeve gasket cylinder and washer in the shell of ball valve body side
Seal receptacle, one end of bottom sealing socket extends to inside valve body support to be connect with ball valve body slip-stick；The ball valve body other side
It is fixed with upper seal support in valve body support；Upper seal support is slidably connected with pin frame is stirred；Lead in the shell of upper seal support side
It crosses guide pin and is fixed with upper sleeve gasket cylinder；Sliding is equipped with switching sliding sleeve between upper sleeve gasket cylinder and upper seal support；Switching sliding sleeve
It is slidably connected with guide pin；One end of switching sliding sleeve connects in succession with pin frame active card is stirred；The other end of switching sliding sleeve is in
Heart pipe active card connects in succession.
Described switching sliding sleeve one end is internally provided with clamping annular groove；The switching sliding sleeve other end be provided with clamping it is convex
Edge；Symmetrical multiple guiding slide openings are evenly arranged on the periphery of clamping flange side；Switching sliding sleeve one end is by being clamped annular groove
It is clamped and connects with one end of central tube；The switching sliding sleeve other end is connected by being clamped flange and stirring the clamping of pin frame.
The upper seal support and bottom sealing socket is cylinder；At one end bead of upper seal support and bottom sealing socket one
It is respectively arranged with cone seal mouth at the bead of end；Ball valve body is tightly connected with each cone seal mouth interval；One end of bottom sealing socket
Sliding annular groove is provided on periphery；The one end for stirring pin frame is slidably connected by sliding annular groove with bottom sealing socket；Upper seal support
Assembly annular groove is provided on the periphery of one end；Upper seal support is clamped connection by assembling one end of annular groove and valve body support；
Multiple guide pins are uniformly fixed on the periphery of the upper seal support other end；Guide pin passes through the guiding slide opening of switching sliding sleeve
It is fixedly connected afterwards with upper sleeve gasket cylinder；The guiding slide opening of guide pin and switching sliding sleeve is slidably connected.
The lower brake pad and upper brake pad are made of assembly pin, spring leaf, friction plate and assembling block；Described
Assembling block is cavity body, is equipped with friction plate by spring leaf inside assembling block, friction plate extends to the outer end of assembling block；Assembly
The both sides of block are respectively arranged with assembly pin.
The slips is made of claw, assembly cylinder and elastic ring；One end of assembly cylinder is movably installed with more by pin
A claw assembles and elastic ring is housed by screw on cylinder；The inner wall of elastic ring is contradicted with each claw and is connected；The dress of elastic ring side
Brake pad mounting groove is evenly equipped on periphery with cylinder.
The central tube is step type；One end of central tube is provided with clamping flange；One end of central tube passes through clamping
The clamping annular groove active card of flange and switching sliding sleeve connects in succession；The middle part of central tube is fixed with stripper loop by screw；Stripper loop
It is respectively arranged with external screw thread on the central tube of both sides；Central tube is threadedly coupled with top connection and slips respectively by external screw thread；In
It is provided with the conflict conical surface on the other end periphery of heart pipe.
Valve body support is fixed with by screw in the shell；Ball is equipped with by pilot hole activity in valve body support
Valve body；The support monomer that valve body support is arranged by symmetry shape fastens；It is fixed and is connected by screw between support monomer
It connects；Symmetry shape is provided with pin frame sliding slot on valve body support；The outside of valve body support is equipped with by the sliding of pin frame sliding slot and is stirred
Sell frame.
The ball valve body is internally provided with through hole；The both sides side of ball valve body is plane；Two side plane of ball valve body
Be provided centrally with and ship and resell on another market；Respectively ship and resell on another market side plane on be provided with and stir sliding slot；Ball valve body is movably arranged on valve by shipping and reselling on another market
On body support.
The pin frame monomer that pin frame is arranged by two symmetry shapes of stirring fastens；Pass through screw between pin frame monomer
It is fixedly connected；Pin frame monomer is made of upper ring body, lower ring body and slide bar；Slide bar is provided between upper ring body and lower ring body；Each cunning
Finger is respectively arranged on the inside of bar；Each finger extends respectively to stirring inside sliding slot and being slidably connected therewith on ball valve body；
Upper ring body is internally provided with clamping annular groove；It stirs pin frame and is clamped connection by being clamped the clamping flange of annular groove and switching sliding sleeve.
The advantage of the invention is that：
The mechanical switch cannula occlusion tool, it is ingenious in design, easy to use, when work under the action of external tool string, band
When dynamic central tube rotates in the forward direction, you can realization sets and block function；Drive central tube reversely rotate when, you can realize deblocking and
The function of de-plugging；And the calker can come into operation repeatedly；It is multiple to solve the operating procedure that existing calker has
Miscellaneous, security risk it is high and cannot multiple operation the problem of, meet the needs of enterprise's production and application.
Description of the drawings
Fig. 1 is the open state structural schematic diagram of the present invention；
Fig. 2 is the schematic cross-sectional view in another section of the invention；
Fig. 3 is the structural schematic diagram of the switching sliding sleeve of the present invention；
Fig. 4 is the structural schematic diagram of the upper seal support of the present invention；
Fig. 5 is the structural schematic diagram of the bottom sealing socket of the present invention；
Fig. 6 is the structural schematic diagram of the lower brake pad and upper brake pad of the present invention；
Fig. 7 is the structural schematic diagram of the slips of the present invention；
Fig. 8 is the structural schematic diagram of the central tube of the present invention；
Fig. 9 is the structural schematic diagram of the valve body support of the present invention；
Figure 10 is the structural schematic diagram of the support monomer of the present invention；
Figure 11 is the axis geodesic structure schematic diagram of the ball valve body of the present invention；
Figure 12 is the schematic cross-sectional view of the ball valve body of the present invention；
Figure 13 is the side structure schematic diagram of the ball valve body of the present invention；
Figure 14 is ball valve body, valve body support and the assembling structure schematic diagram for stirring pin frame of the present invention；
Figure 15 is the structural schematic diagram for stirring pin frame of the present invention；
Figure 16 is the structural schematic diagram of the pin frame monomer of the present invention；
Figure 17 sets structural schematic diagram for the present invention's.
In figure：1, sand prevention filter screen, 2, lower contact, 3, top connection, 4, shell, 5, central tube, 6, set packing element, 7, under it is close
Seal seat, 8, upper seal support, 9, valve body support, 10, ball valve body, 11, lower brake pad, 12, screw, 13, stripper loop, 14, slips,
15, upper brake pad, 16, stir pin frame, 17, lower sleeve gasket cylinder, 18, washer, 19, upper sleeve gasket cylinder, 20, switching sliding sleeve, 21, dress
With pin, 22, spring leaf, 23, friction plate, 24, assembling block, 25, clamping annular groove, 26, clamping flange, 27, external screw thread, 28, support
Touch the conical surface, 29, pilot hole, 30, pin frame sliding slot, 31, through hole, 32, ship and resell on another market, 33, stir sliding slot, 34, upper ring body, 35, lower ring
Body, 36, slide bar, 37, finger, 38, cone seal mouth, 39, sliding annular groove, 40, assembly annular groove, 41, rubber cushion cover, 42, pin frame
Monomer, 43, guide pin, 44, be oriented to slide opening, 45, claw, 46, assembly cylinder, 47, elastic ring, 48, pin, 49, brake pad peace
Tankage, 50, support monomer.
Specific implementation mode
The mechanical switch cannula occlusion tool by sand prevention filter screen 1, lower contact 2, top connection 3, shell 4, central tube 5,
Packing element 6, bottom sealing socket 7, upper seal support 8, valve body support 9 and ball valve body 10 is set to constitute（Referring to Figure of description 1）.
The lower contact 2 that one end of shell 4 is connected through a screw thread is equipped with sand prevention filter screen 1；Sand prevention filter screen 1 have prevent
Impurity in oil（Such as sandstone）The effect for entering the calker damages after entering its inside so as to avoid sandstone
The problem of calker.
The other end of shell 4 is threaded with top connection 3；Multiple lower frictions are evenly arranged on the periphery of top connection 3
Block 11；Lower brake pad 11 and upper brake pad 15 are made of assembly pin 21, spring leaf 22, friction plate 23 and assembling block 24（Ginseng
See Figure of description 6）.
Assembling block 24 is cavity body, is equipped with friction plate 23 by spring leaf 22 inside assembling block 24, and friction plate 23 extends
To the outer end of assembling block 24；The both sides of assembling block 24 are respectively arranged with assembly pin 21.Lower brake pad 11 is by assembling pin 21
It is fixedly mounted on the periphery of top connection 3.Friction plate 23 is by elastic material and resistance to is milled into；The calker tripping in process
In, under the action of spring leaf 22, friction plate 23 contradicts with down-hole casing connect always；Under thrust, thrust can overcome
After the frictional force of friction plate 23, the calker is pushed to be displaced downwardly to designated position along down-hole casing；When the calker tripping in
To after designated position, when shell 4 and top connection 3 generate the trend of movement from internal stress, lower brake pad 11 and down-hole casing it
Between frictional force top connection 3 and shell 4 can be hindered to act, and then make down-hole casing and lower brake pad 11, top connection 3 and shell
4 keep being relatively fixed connection, so can avoid shell 4 and top connection 3 and rotate easily to influence the calker and work to ask
The generation of topic.
3 internal whorl of top connection is connected with central tube 5；Central tube 5 is step type（Referring to Figure of description 8）；Central tube 5
One end be provided with clamping flange 26；The middle part of central tube 5 is fixed with stripper loop 13 by screw 12；In 13 both sides of stripper loop
External screw thread 27 is respectively arranged on heart pipe 5.It is provided on the other end periphery of central tube 5 and contradicts the conical surface 28.Due to central tube 5
It is threadedly coupled with top connection 3 by external screw thread 27；Therefore when central tube 5 rotates under the action of external tool, 5 energy of central tube
Enough corresponding top connections 3 move up and down.
13 side of stripper loop is equipped with by rubber cushion cover 41 and sets packing element 6；Set the end of packing element 6 one end and top connection 3
Contradict connection；It sets 6 other end of packing element and contradicts connection with stripper loop 13；When central tube 5 is moved down relative to top connection 3, center
Pipe 5 can be squeezed under the cooperation of top connection 3 by stripper loop 13 and set packing element 6 and rubber cushion cover 41, and packing element 6 and rubber are set
Cushion cover 41 will will produce radial shape change after being pressurized, to achieve the purpose that seal down-hole casing.
Slips 14 is threaded with by external screw thread 27 on the central tube 5 of 13 other side of stripper loop；Slips 14 by claw 45,
It assembles cylinder 46 and elastic ring 47 is constituted（Referring to Figure of description 7）.
The one end for assembling cylinder 46 is movably installed with multiple claws 45 by pin 48, and the inside of claw 45 is in inclined-plane, when it
It will strut to complete around pin 48 anchoring work of claw outward when inside is squeezed.
It assembles and elastic ring 47 is equipped with by screw 12 on cylinder 46；The inner wall of elastic ring 47 is contradicted with each claw 45 and is connected（Ginseng
See Figure of description 7）；Under the action of elastic ring 47, each claw 45 has the trend mutually drawn close；To make the blocking work
When moving up or move down in down-hole casing, each claw 45 can remain the state drawn close, and be covered so as to avoid itself and underground
The problem of " bite ", occurs for pipe.
It is evenly equipped with brake pad mounting groove 49 on the periphery of the assembly cylinder 46 of 47 side of elastic ring.It assembles on cylinder 46 by rubbing
Cleaning block mounting groove 49 is equipped with multiple upper brake pads 15.After the calker is lowered into the designated position of down-hole casing, rub upper
Under the action of cleaning block 15, friction plate 23 contradicts with down-hole casing connect always, to make 14 stress of slips generate becoming for movement
When gesture, the frictional force between upper brake pad 15 and down-hole casing can hinder the action of slips 14, so make down-hole casing with it is upper
Brake pad 15 and the holding of slips 14 are relatively fixed connection, so can avoid slips 14 and rotate easily the influence calker
The generation of work problem.
Valve body support 9 is fixed with by screw 12 in the shell 4 of 5 side of central tube；Pass through assembly in valve body support 9
29 activity of hole is equipped with ball valve body 10（Referring to Figure of description 1 and 11）.
Ball valve body 10 is internally provided with through hole 31（Referring to Figure of description 12）；When ball valve body 10 through hole 31 with
When bottom sealing socket 7 is connected to upper seal support 8, which is in open state, and oil can be passed through by through hole 31
The calker.When 10 Forced rotation of ball valve body with bottom sealing socket 7 and upper seal support 8 to when being tightly connected（It is attached referring to specification
Figure 17）, the calker is i.e. in sealing blocked state.
The both sides side of ball valve body 10 is plane；Being provided centrally with of 10 liang of side planes of ball valve body ships and resell on another market 32；Respectively ship and resell on another market 32
It is provided in the plane of side and stirs sliding slot 33（Referring to Figure of description 13）；Ball valve body 10 32 is movably arranged on valve by shipping and reselling on another market
On body support 9.It is long sliding slot to stir sliding slot 33, and the purpose for stirring sliding slot 33 is arranged such and is：So as to stir 16 band of pin frame
For dynamic finger 37 when vertical direction moves back and forth, finger 37 can drive ball valve body 10 around shipping and reselling on another market 32 turns by stirring sliding slot 33
It moves, and then avoid finger 37 not driving the generation of 10 rotational problems of ball valve body by stirring sliding slot 33.
Valve body support 9 is fastened by the support monomer 50 being arranged by symmetry shape；Pass through between support monomer 50
Screw 12 is fixedly connected（Referring to Figure of description 9 and 10）；By valve body support 9 be set as two support monomers 50 fasten and
At purpose be：To facilitate the installation of ball valve body 10 to assemble.
Symmetry shape is provided with pin frame sliding slot 30 on valve body support 9；It is slided by pin frame sliding slot 30 outside of valve body support 9
Dynamic be equipped with stirs pin frame 16（Referring to Figure of description 14）.
The pin frame monomer 42 that pin frame 16 is arranged by two symmetry shapes is stirred to fasten；Pass through screw between pin frame monomer 42
12 are fixedly connected（Referring to Figure of description 15 and 16）；
Pin frame monomer 42 is made of upper ring body 34, lower ring body 35 and slide bar 36；It is provided with cunning between upper ring body 34 and lower ring body 35
Bar 36；Pin frame 16 is stirred to be slidably connected by slide bar 36 and the pin frame sliding slot 30 on valve body support 9.
The inside of each slide bar 36 is respectively arranged with finger 37；Each finger 37 extends respectively to stir sliding slot on ball valve body 10
33 inside are simultaneously slidably connected therewith；Upper ring body 34 is internally provided with clamping annular groove 25；Pin frame 16 is stirred by being clamped annular groove 25
It is clamped and connects with the clamping flange 26 of switching sliding sleeve 20.
It is driven during switching sliding sleeve 20 can so moved back and forth in the vertical direction and stirs 16 synchronizing moving of pin frame,
And then make it through finger 37 and ball valve body 10 is driven to rotate, to achieve the purpose that be turned on and off calker.
Bottom sealing socket 7 is fixed with by lower sleeve gasket cylinder 17 and washer 18 in the shell 4 of 10 side of ball valve body（Referring to explanation
Attached drawing 1）.
Bottom sealing socket 7 is cylinder（Referring to illustrating attached drawing 5）；It is provided with cone seal at one end bead of bottom sealing socket 7
Mouth 38；Sliding annular groove 39 is provided on one end periphery of bottom sealing socket 7；Stir one end of pin frame 16 by slide annular groove 39 with
Bottom sealing socket 7 is slidably connected；It stirs pin frame 16 to move back and forth in moving process, can slidably reciprocate along sliding annular groove 39, to
Bottom sealing socket 7 is avoided to hinder to stir the generation that pin frame 16 moves problem.
One end of bottom sealing socket 7 extends to inside valve body support 9, passes through 10 interval of cone seal mouth 38 and ball valve body
It is tightly connected；The radian of cone seal mouth 38 is consistent with the radian on 10 surface of ball valve body, can so make ball valve body 10 and cone
Shape seal 38 is fitted and connected, and then when the calker being made to be in blocked state, can will be fully sealed, and then avoid and let out
The generation of leakage problem.
It is fixed with upper seal support 8 in the valve body support 9 of 10 other side of ball valve body（Referring to Figure of description 1）；Upper sealing
Seat 8 is cylinder（Referring to Figure of description 4）；It is provided with cone seal mouth 38 at one end bead of upper seal support 8；Upper seal support
8 are intermittently tightly connected by cone seal mouth 38 and ball valve body 10.It is provided with assembly annular groove on the periphery of 8 one end of upper seal support
40；Upper seal support 8 is clamped connection by assembling annular groove 40 and one end of valve body support 9.Upper seal support 8 is by assembling annular groove 40
It is relatively fixed with the holding of valve body support 9.
It is uniformly fixed with multiple guide pins 43 on the periphery of 8 other end of upper seal support（Referring to Figure of description 4）；On
Upper sleeve gasket cylinder 19 is fixed with by guide pin 43 in the shell 4 of 8 side of seal receptacle（Referring to Figure of description 2）.
Sliding is equipped with switching sliding sleeve 20 between upper sleeve gasket cylinder 19 and upper seal support 8（Referring to Figure of description 1 and 2）；It opens
Close 20 one end of sliding sleeve is internally provided with clamping annular groove 25（Referring to Figure of description 3）；20 other end of switching sliding sleeve is provided with
It is clamped flange 26；It is evenly arranged with multiple guiding slide openings 44 on the periphery of 26 side of clamping flange.
Guide pin 43 on upper seal support 8 passes through guiding slide opening 44 to be fixedly connected with upper sleeve gasket cylinder 19（Referring to explanation
Book attached drawing 2）；Guide pin 43 and the guiding slide opening 44 of switching sliding sleeve 20 are slidably connected.The purpose that guide pin 43 is arranged is：
First, providing installation foundation for upper sleeve gasket cylinder 19；Second is that being opened in guide pin 43 and under being oriented to the guiding of slide opening 44 when work
Closing sliding sleeve 20 can smoothly move axially in the axial direction, and rotational problems are generated so as to avoid switching sliding sleeve 20
Occur.
20 one end of switching sliding sleeve is clamped connection by being clamped annular groove 25 and one end of central tube 5.When central tube 5 is rotating simultaneously
During moving up and down simultaneously, central tube 5 can be kept relatively rotating with switching sliding sleeve 20, and be driven simultaneously on switching sliding sleeve 20
Lower movement.
20 other end of switching sliding sleeve is connect by being clamped flange 26 with 25 fixing card of clamping annular groove for stirring pin frame 16 in succession.It opens
It closes during sliding sleeve 20 moves up and down under the action of central tube 5, can drive to stir pin frame 16 and synchronize and move up and down.
When the mechanical switch cannula occlusion tool is set, under the auxiliary of other tool strings, under fall in down-hole casing
Designated position.It contradicts and connects in the friction plate 23 of lower brake pad 11 and down-hole casing at this time, to make shell 4 and top connection 3
It is relatively fixed by lower brake pad 11 and down-hole casing holding.In addition under the action of friction plate 23 of upper brake pad 15, slips
14 are relatively fixed by upper brake pad 15 and down-hole casing holding.
After falling on designated position under the calker, tool string rotates forward central tube 5（Referring to Figure of description 17）, by
In the threaded connection that central tube 5 and slips 14 and top connection 3 are kept；And slips 14 and top connection 3 keep opposite with down-hole casing
It is fixed；It when central tube 5 rotates forward, will be moved down with respect to slips 14 and top connection 3, and in 5 folding process of central tube, pass through conflict
The conical surface 28 squeezes claw 45, and to make the opening of claw 45 be anchored on down-hole casing, at the same time stripper loop 13 is under central tube 5
During shifting, extruding sets packing element 6, makes to set packing element 6 and radially expands, and is set to make to set the completion of packing element 6.
In addition in 5 folding process of central tube；It will drive stir pin frame 16 and synchronize and move down by switching sliding sleeve 20；It stirs
It sells in 16 folding process of frame, by finger 37 and stirs sliding slot 33 and drive ball valve body 10 around 32 rotations of shipping and reselling on another market, when 10 turns of ball valve body
90 ° dynamic, when the spherical surface of ball valve body 10 is tightly connected with upper seal support 8 and bottom sealing socket 7, ball valve body 10 blocks the calker,
Tool string stopping at this time rotating forward, and so far the calker is completed to set and block the action of down-hole casing.
After the calker sets and block the action of down-hole casing, when need to unseal, tool string rotates backward central tube
5；When central tube 5 rotates backward, it will be moved up with respect to slips 14 and top connection 3.
During central tube 5 moves up, contradicts the conical surface 28 and gradually disengaged with extruding claw 45, claw 45 is made to lose branch
Support, under the elastic force effect of elastic ring 47, claw 45 automatically resets and is disengaged with down-hole casing, to release anchoring；With
This sets the extruding that packing element 6 will lose stripper loop 13, and finally at itself during stripper loop 13 moves up with central tube 5 simultaneously
It is restored under the action of elastic force, to achieve the purpose that deblocking.
In addition during central tube 5 moves up；It will drive stir pin frame 16 and synchronize and move up by switching sliding sleeve 20；It stirs
During pin frame 16 moves up, by finger 37 and stir sliding slot 33 and drive ball valve body 10 around 32 rotations of shipping and reselling on another market, make ball valve body 10 by
Step resets, and after central tube 5 moves up reset, the through hole 31 of ball valve body 10 is connected to upper seal support 8 and bottom sealing socket 7；Ball at this time
The calker completes deblocking action, then above carries the calker, you can proposed down-hole casing.
The mechanical switch cannula occlusion tool, it is ingenious in design, easy to use, it can come into operation repeatedly；It solves existing
Operating procedure that calker has is complicated, security risk is high and cannot multiple operation the problem of, meet enterprise's production and application
Needs.
Claims (9)
1. a kind of mechanical switch cannula occlusion tool, it is by sand prevention filter screen（1）, lower contact（2）, top connection（3）, shell
（4）, central tube（5）, set packing element（6）, bottom sealing socket（7）, upper seal support（8）, valve body support（9）And ball valve body（10）Structure
At；It is characterized in that：The shell（4）The lower contact that is connected through a screw thread of one end（2）Sand prevention filter screen is installed（1）；
Shell（4）The other end be threaded with top connection（3）；Top connection（3）Periphery on be evenly arranged with multiple lower brake pads
（11）；Top connection（3）Internal whorl is connected with central tube（5）；Central tube（5）Periphery on pass through screw（12）It is fixed with point
Spacer ring（13）；Stripper loop（13）Side passes through rubber cushion cover（41）Equipped with setting packing element（6）；Set packing element（6）One end with above connect
Head（3）End contradict connection；Set packing element（6）The other end and stripper loop（13）Contradict connection；Stripper loop（13）Other side spiral shell
Line is connected with slips（14）；Slips（14）Multiple upper brake pads are evenly arranged on periphery（15）；Central tube（5）The shell of side
Body（4）Inside pass through screw（12）With valve body support（9）Activity is equipped with ball valve body（10）；Valve body support（9）Upper sliding is equipped with
Stir pin frame（16）；Ball valve body（10）The shell of side（4）It is interior to pass through lower sleeve gasket cylinder（17）And washer（18）Equipped with lower sealing
Seat（7）, bottom sealing socket（7）One end extend to valve body support（9）Internal and ball valve body（10）Slip-stick connects；Ball valve body
（10）The valve body support of the other side（9）Inside it is fixed with upper seal support（8）；Upper seal support（8）With stir pin frame（16）Sliding connects
It connects；Upper seal support（8）The shell of side（4）Inside pass through guide pin（43）It is fixed with upper sleeve gasket cylinder（19）；Upper sleeve gasket cylinder
（19）With upper seal support（8）Between sliding be equipped with switching sliding sleeve（20）；Switching sliding sleeve（20）One end and stir pin frame（16）It is living
Dynamic clamping connection；Switching sliding sleeve（20）The other end and central tube（5）Active card connects in succession；Switching sliding sleeve（20）With guide pin
（43）It is slidably connected.
2. a kind of mechanical switch cannula occlusion tool according to claim 1, it is characterised in that：The switching sliding sleeve
（20）One end is internally provided with clamping annular groove（25）；Switching sliding sleeve（20）The other end is provided with clamping flange（26）；Clamping
Flange（26）Multiple guiding slide openings are evenly arranged on the periphery of side（44）；Switching sliding sleeve（20）One end is by being clamped annular groove
（25）With central tube（5）One end clamping connection；Switching sliding sleeve（20）The other end is by being clamped flange（26）With stir pin frame
（16）Clamping connection.
3. a kind of mechanical switch cannula occlusion tool according to claim 2, it is characterised in that：The upper seal support
（8）And bottom sealing socket（7）It is cylinder；Upper seal support（8）One end bead at and bottom sealing socket（7）The punishment of one end bead
It is not provided with cone seal mouth（38）；Ball valve body（10）With each cone seal mouth（38）Interval is tightly connected；Bottom sealing socket（7）'s
Sliding annular groove is provided on the periphery of one end（39）；Stir pin frame（16）One end pass through slide annular groove（39）With bottom sealing socket
（7）It is slidably connected；Upper seal support（8）Assembly annular groove is provided on the periphery of one end（40）；Upper seal support（8）Pass through mounting ring
Slot（40）With valve body support（9）One end clamping connection；Upper seal support（8）It is uniformly fixed on the periphery of the other end multiple
Guide pin（43）；Guide pin（43）Across switching sliding sleeve（20）Guiding slide opening（44）Afterwards with upper sleeve gasket cylinder（19）It is fixed
Connection；Guide pin（43）With switching sliding sleeve（20）Guiding slide opening（44）It is slidably connected.
4. a kind of mechanical switch cannula occlusion tool according to claim 3, it is characterised in that：The lower brake pad
（11）With upper brake pad（15）By assembly pin（21）, spring leaf（22）, friction plate（23）And assembling block（24）It constitutes；It is described
Assembling block（24）For cavity body, assembling block（24）Inside passes through spring leaf（22）Friction plate is installed（23）, friction plate（23）
Extend to assembling block（24）Outer end；Assembling block（24）Both sides be respectively arranged with assembly pin（21）.
5. a kind of mechanical switch cannula occlusion tool according to claim 4, it is characterised in that：The slips（14）
By claw（45）, assembly cylinder（46）And elastic ring（47）It constitutes；Assemble cylinder（46）One end pass through pin（48）It is movably installed with
Multiple claws（45）, assemble cylinder（46）On pass through screw（12）Equipped with elastic ring（47）；Elastic ring（47）Inner wall and each claw
（45）Contradict connection；Elastic ring（47）The assembly cylinder of side（46）Periphery on be evenly equipped with brake pad mounting groove（49）.
6. a kind of mechanical switch cannula occlusion tool according to claim 5, it is characterised in that：The central tube
（5）For step type；Central tube（5）One end be provided with clamping flange（26）；Central tube（5）One end pass through be clamped flange（26）
With switching sliding sleeve（20）Clamping annular groove（25）Active card connects in succession；Central tube（5）Middle part pass through screw（12）It is fixed with point
Spacer ring（13）；Stripper loop（13）The central tube of both sides（5）On be respectively arranged with external screw thread（27）；Central tube（5）Pass through external screw thread
（27）Respectively with top connection（3）And slips（14）It is threadedly coupled；Central tube（5）Other end periphery on be provided with the conflict conical surface
（28）.
7. a kind of mechanical switch cannula occlusion tool according to claim 6, it is characterised in that：The shell（4）
Inside pass through screw（12）It is fixed with valve body support（9）；Valve body support（9）Inside pass through pilot hole（29）Activity is equipped with ball valve body
（10）；Valve body support（9）The support monomer being arranged by symmetry shape（50）It fastens；Support monomer（50）Between pass through
Screw（12）It is fixedly connected；Valve body support（9）Upper symmetry shape is provided with pin frame sliding slot（30）；Valve body support（9）Outside
Pass through pin frame sliding slot（30）Sliding is equipped with and stirs pin frame（16）.
8. a kind of mechanical switch cannula occlusion tool according to claim 7, it is characterised in that：The ball valve body
（10）Be internally provided with through hole（31）；Ball valve body（10）Both sides side be plane；Ball valve body（10）In two side planes
The heart, which is provided with, ships and resell on another market（32）；Respectively ship and resell on another market（32）It is provided in the plane of side and stirs sliding slot（33）；Ball valve body（10）By shipping and reselling on another market
（32）It is movably arranged on valve body support（9）On.
9. a kind of mechanical switch cannula occlusion tool according to claim 8, it is characterised in that：Described stirs pin frame
（16）The pin frame monomer being arranged by two symmetry shapes（42）It fastens；Sell frame monomer（42）Between pass through screw（12）It is fixed to connect
It connects；Sell frame monomer（42）By upper ring body（34）, lower ring body（35）And slide bar（36）It constitutes；Upper ring body（34）And lower ring body（35）It
Between be provided with slide bar（36）；Each slide bar（36）Inside be respectively arranged with finger（37）；Each finger（37）Extend respectively to ball valve
Body（10）On stir sliding slot（33）Inside is simultaneously slidably connected therewith；Upper ring body（34）Be internally provided with clamping annular groove（25）；
Stir pin frame（16）By being clamped annular groove（25）With switching sliding sleeve（20）Clamping flange（26）Clamping connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810953710.4A CN108716378B (en) | 2018-08-21 | 2018-08-21 | Mechanical switch type sleeve blocking tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810953710.4A CN108716378B (en) | 2018-08-21 | 2018-08-21 | Mechanical switch type sleeve blocking tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108716378A true CN108716378A (en) | 2018-10-30 |
| CN108716378B CN108716378B (en) | 2023-08-22 |
Family
ID=63914493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810953710.4A Active CN108716378B (en) | 2018-08-21 | 2018-08-21 | Mechanical switch type sleeve blocking tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716378B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074487A (en) * | 2014-07-11 | 2014-10-01 | 中国石油大学(北京) | Packer |
| CN203905888U (en) * | 2014-06-29 | 2014-10-29 | 荆州市赛瑞能源技术有限公司 | Mechanical retrievable packer |
| CN105545245A (en) * | 2016-02-02 | 2016-05-04 | 四机赛瓦石油钻采设备有限公司 | Mechanical setting and recycling plugging tool |
| CN108397154A (en) * | 2018-03-02 | 2018-08-14 | 荆州市赛瑞能源技术有限公司 | A kind of anti-hydraulic packer being hampered |
| CN208594898U (en) * | 2018-08-21 | 2019-03-12 | 长江大学 | A kind of mechanical switch cannula occlusion tool |
-
2018
- 2018-08-21 CN CN201810953710.4A patent/CN108716378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203905888U (en) * | 2014-06-29 | 2014-10-29 | 荆州市赛瑞能源技术有限公司 | Mechanical retrievable packer |
| CN104074487A (en) * | 2014-07-11 | 2014-10-01 | 中国石油大学(北京) | Packer |
| CN105545245A (en) * | 2016-02-02 | 2016-05-04 | 四机赛瓦石油钻采设备有限公司 | Mechanical setting and recycling plugging tool |
| CN108397154A (en) * | 2018-03-02 | 2018-08-14 | 荆州市赛瑞能源技术有限公司 | A kind of anti-hydraulic packer being hampered |
| CN208594898U (en) * | 2018-08-21 | 2019-03-12 | 长江大学 | A kind of mechanical switch cannula occlusion tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108716378B (en) | 2023-08-22 |
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