CN207847585U - Multi-functional insertion packer - Google Patents
Multi-functional insertion packer Download PDFInfo
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- CN207847585U CN207847585U CN201820130012.XU CN201820130012U CN207847585U CN 207847585 U CN207847585 U CN 207847585U CN 201820130012 U CN201820130012 U CN 201820130012U CN 207847585 U CN207847585 U CN 207847585U
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- sealing
- sliding sleeve
- wall
- tube
- insertion tube
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Abstract
The utility model discloses a kind of multi-functional insertion packers, including insertion tube, sealing drum, it is connected to connector, the sealing sleeve is on the outer wall of insertion tube, the insertion drum outer wall also opens up at least one of seal groove, sealing ring is installed in seal groove, be inserted into tube inner chamber be axially through inner via hole, connection upper end of joint connection insertion tube lower end, the connection connector inner cavity is the blind hole that lower end closure is opened in upper end, pitching valve is arranged in the upper port inner wall of the blind hole of the connection connector, the connection connector also opens up the connectivity slot radially penetrated through, i.e. the connectivity slot inner end is connected to blind hole, outer end is connected to the outside of connection connector.The utility model can pass through oil pipe and be blocked to stratum injection cement mortar to stratum, blocked from deep wellbore to stratum, make not generate high pressure in pit shaft, fundamentally solve the problems, such as blowout, avoid that the economic loss that blowout generates occurs.
Description
Technical field
The utility model is related to oil field well equipment, specifically a kind of multi-functional insertion packer.
Background technology
The some oil wells in oil field are because set leakage or casing deformation prevent well oil pipe from proposing, oil pipe pull-off in operation process
Part oil pipe is caused to fall well, oil well can not be repaired and be scrapped, these wells cannot be produced normally, be laminated after long-time stops production
Power is constantly restored to increase, if such well is also easy to produce leakage gas blowout accident, causes heavy economic losses without permanently shunting in a well.
Due to falling the oil pipe of well after having fracture in well, it cannot permanently be shunt in a well according to shut-in well standard, only be carried out by squeezing off
It shunts in a well but since there are casing leakage, blocking agent enters lost-circulation zone, safety permanent shut-in well requirement is still not achieved in lower part, or to such
Well temporarily seals.This method management difficulty is big, and accident will occur for slightly careless omission, and this method can only take stopgap measures, and cannot effect a permanent cure.
To solve the above-mentioned problems, technical staff has studied some technical products to prevent the above problem.Such as China
Patent 200820024004.3《Dead well plugging device》Exactly solve the above problems.It can make abandoned well, long-term shutdowns well, wait for
Well workover is controlled.But " when rotation rotation pipe 5, rotation pipe 5 moves up its needs, and the shoulder in 5 lower part of rotation rotation pipe is made
Under, cone 8, packing element 9, rubber tube seat 10 move up, and under the action of cone 8, slips 7, which struts, to be anchored on casing, continue
Rotary motion pipe 5, slips 7, cone 8 are motionless, and the distance between cone 8 and rubber tube seat 10 shorten, and packing element 9 is sealed by compand
Casing, then capping 1 is installed, under the action of blocking device 4, capping 1, well internal channel is completely plugged, and dead well is made to be in
State of a control is not in the generation of out-of-control condition.When needing operation well workover to resume production, capping 1 is removed, compressing is stifled downwards
Plug device makes borehole pressure be discharged " operating procedure.This technology is equally that management difficulty is big, and heavy workload is slightly slipped just
Accident can occur, can only take stopgap measures, cannot effect a permanent cure.
Utility model content
The purpose of this utility model is to provide a kind of multi-functional insertion packers, can pass through oil pipe and inject cement to stratum
Slurry blocks stratum, is blocked from deep wellbore to stratum, makes not generate high pressure in pit shaft, fundamentally solve blowout
The problem of, it avoids that the economic loss that blowout generates occurs.
In order to achieve the above objectives, the utility model uses following technical solution, which includes
Insertion tube, sealing drum, connection connector, the sealing sleeve mounted in insertion tube outer wall on, the insertion drum outer wall also open up to
Few one of seal groove installs sealing ring in seal groove, be inserted into tube inner chamber be axially through inner via hole, the connection connector
Upper end connects insertion tube lower end, which is the blind hole that lower end closure is opened in upper end, the blind hole of the connection connector
Upper port inner wall pitching valve is set, the connection connector also opens up the connectivity slot radially penetrated through, i.e. connectivity slot inner end company
Logical blind hole, outer end are connected to the outside of connection connector.
The lower end of the connection connector is equipped with eccentric guide posts, and the bias guide posts are different from insertion tube connection connector
The lower end outer wall of axis, the bias guide posts is equipped with lower chamfering, and eccentric guide posts upper end outer wall is equipped with upper chamfering.
The bias guide posts lay scraping block in the cylindrical outer wall of itself interlude, and scraping stock material closes for hard
Gold, scraping block welding are in vertical distribution in eccentric guide posts.
The outer wall of the insertion tube is taper, and the lower end outer diameter of insertion tube, which is less than, wants closed down-hole oil tube internal diameter, inserts
Enter cylinder upper end outer diameter be equal to want closed down-hole oil tube internal diameter.
The bottom of the seal groove is drilled with intercommunicating pore, and the intercommunicating pore is communicated with the inner via hole.
Reducing diameter part is arranged in the insertion drum outer wall, and reducing diameter part casts packing sealed tube, and the material of sealing drum is lead, and sealing drum is in cone
Shape, lower end is big, and upper end is small, and the lower end of sealing drum is equal with the outer diameter of the contact position of insertion tube, and the upper end outer diameter of sealing drum is more than
With the outer diameter of the contact position of insertion tube.
The pitching valve includes sealing sliding sleeve, valve ball, and sealing sliding sleeve is installed in the blind hole, and sealing sliding sleeve is in described
Connectivity slot on, the gap sealed between sliding sleeve and the inner wall of the blind hole is sealed by sliding sleeve sealing ring, sliding sleeve sealing ring peace
In the annular groove on sealing sliding sleeve, the diameter of the valve ball is more than the internal diameter of sealing sliding sleeve, and valve ball is upper with sealing sliding sleeve
Port fitted seal, sealing sliding sleeve are connected to by level pressure pin on connection connector, and level pressure pin is under sliding sleeve sealing ring.
The insertion tube upper end connects upper connection, and the upper connection bottom face opens up limit annular groove, the limit
Position annular groove can clasp wanted closed down-hole oil tube.
The utility model has the advantages that compared with prior art：
Insertion tube is lowered into fracture oil pipe by the utility model, sealing drum deformation and fracture oil pipe fitted seal, input
Valve ball is suppressed into tubing string, and pressure, which pushes sealing ring open, makes itself and fracture oil pipe fitted seal, and sealing ring forms dual with sealing drum
Sealing.Pressure continues to increase, and level pressure pin is made to be cut, and valve ball, sealing sliding sleeve downlink, insertion tube are connected by connectivity slot and stratum
It is logical, so that it may to inject cement mortar to stratum, stratum be blocked.The utility model can overcome of the existing technology ask
Topic, blocks stratum from deep wellbore, makes not generate high pressure in pit shaft, fundamentally solve the problems, such as blowout, avoid sending out
The economic loss that raw blowout generates.
When the utility model is with oil pipe G.I.H, imported by eccentric guide posts in the oil pipe of underground fracture, and by bias
Scraping block in guide posts please manage the inlet location for being broken oil pipe totally, to make the utility model enter and to seal up oil
Pipe, the effect that sealing ring forms dual-seal with sealing drum are more thorough.
Description of the drawings
Fig. 1 is the cross-sectional view of the multi-functional insertion packer of the utility model.
In figure：Upper connection 1, sealing drum 3, sealing ring 4, valve ball 5, sealing sliding sleeve 6, sliding sleeve sealing ring 7, is determined at insertion tube 2
Pressing in pins 8, connection connector 9, scraping block 10.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of multi-functional insertion packer, including it is upper connection 1, insertion tube 2, close
Sealed tube 3, sealing ring 4, valve ball 5, sealing sliding sleeve 6, sliding sleeve sealing ring 7, level pressure pin 8, connection connector 9, scraping block 10, top connects
First 1, insertion tube 2, connection connector 9 are sequentially connected, and tubing round thread arranged at the top of upper connection 1, and the top of connection connector 9 is drilled with blind
Hole 9-2 opens up connectivity slot 9-1 on the side wall of connection connector 9, and the connectivity slot 9-1 is communicated with the blind hole 9-2,
Installation sealing sliding sleeve 6 in the top of the blind hole 9-2, sealing sliding sleeve 6 are on the connectivity slot 9-1, seal sliding sleeve 6
Gap between the inner wall of the blind hole 9-2 is sealed by sliding sleeve sealing ring 7, and sliding sleeve sealing ring 7 is mounted on sealing sliding sleeve 6
Annular groove in, the diameter of valve ball 5 is more than the internal diameter of sealing sliding sleeve 6, and the upper port fitted seal of valve ball 5 and sealing sliding sleeve 6 is close
Envelope sliding sleeve 6 is connected to by level pressure pin 8 on connection connector 9, and level pressure pin 8 is under sliding sleeve sealing ring 7,8 quilt of level pressure pin
Sliding sleeve 6 is sealed after cutting can fall within the lower part of the blind hole 9-2, enable liquid stream in the blind hole 9-2 from the company
It is flowed out in straight slot 9-1, insertion tube 2 has inner via hole 2-3, several seal groove 2-1 is opened up on the outer wall of insertion tube 2, described
The bottom of seal groove 2-1 be drilled with intercommunicating pore 2-2, the intercommunicating pore 2-2 is communicated with the inner via hole 2-3, in per pass
One sealing ring 4 is installed in the seal groove 2-1.In the reducing diameter part casting packing sealed tube 3 of insertion tube 2, the material of sealing drum 3
For lead, it is easily deformed blind, sealing drum 3 is tapered, and lower end is big, and upper end is small, the lower end of sealing drum 3 and connecing for insertion tube 2
The outer diameter of synapsis is equal, and the upper end outer diameter of sealing drum 3 is more than the outer diameter with the contact position of insertion tube 2.
The further measure of the utility model is that the outer wall of insertion tube 2 is taper, and the lower part of insertion tube 2 is less than to be sealed
The down-hole oil tube internal diameter closed, the top of insertion tube 2, which is equal to, wants closed down-hole oil tube internal diameter.It can preferably make insertion tube suitable
It is inserted into the oil pipe of fracture sharply.
Another step measure of the utility model is that the lower part of connection connector 9 has eccentric guide posts 9-5, the bias to lead
Draw column 9-5 and insertion tube 2, be connected to the not coaxial line of connector 9, there is lower chamfering 9-3 in the lower end of the eccentric guide posts 9-5, connection
The intersection of the connector 9 and eccentric guide posts 9-5 has upper chamfering 9-4.Preferably insertion tube can be guided to be smoothly inserted into
In the oil pipe of fracture.
Setting limit annular groove 1-1, the limit annular groove 1-1 can clasp to be sealed on the lower face of upper connection 1
The down-hole oil tube closed.Play limitation the utility model to continue traveling downwardly.
Scraping block 10 is laid in the outside cylinder of the eccentric guide posts 9-5,10 material of scraping block is hard alloy, is scraped
It cuts block 10 to be welded on eccentric guide posts 9-5, is in vertical distribution.
Valve ball is not put into first, and the utility model is with oil pipe G.I.H, after reaching at the oil pipe of fracture, eccentric guide posts 9-
5 are introduced into the oil pipe of fracture, and ground rotates tubing string, and the scraping block 10 on eccentric guide posts 9-5 is made to enter fracture oil pipe
It is cleared up at mouthful, keeps endoporus totally smooth, then insertion tube 2 is lowered into fracture oil pipe, the deformation of sealing drum 3 and fracture oil
Pipe fitted seal puts into valve ball 5, is suppressed into tubing string, and pressure, which pushes sealing ring 4 open, makes itself and fracture oil pipe fitted seal, sealing
Circle 4 forms dual-seal with sealing drum 3.Pressure continues to increase, and level pressure pin 8 is made to be cut, valve ball 5, sealing 6 downlink of sliding sleeve,
Insertion tube 2 passes through connectivity slot 9-1 and combination of zones, so that it may to inject cement mortar to stratum, be blocked to stratum.
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (8)
1. multi-functional insertion packer, which is characterized in that including insertion tube, sealing drum, connection connector, the sealing sleeve is mounted in
On the outer wall of insertion tube, the insertion drum outer wall also opens up at least one of seal groove, installs sealing ring in seal groove, is inserted into
Tube inner chamber be axially through inner via hole, connection upper end of joint connection insertion tube lower end, which is upper end
The blind hole of lower end closure is opened, pitching valve is arranged in the upper port inner wall of the blind hole of the connection connector, and the connection connector is also
The connectivity slot radially penetrated through is opened up, i.e., the connectivity slot inner end is connected to blind hole, and outer end is connected to the outside of connection connector.
2. multi-functional insertion packer according to claim 1, which is characterized in that the lower end of the connection connector is equipped with
Eccentric guide posts, the bias guide posts are connected to connector not coaxial line with insertion tube, and the lower end outer wall of the bias guide posts is set
There are lower chamfering, eccentric guide posts upper end outer wall to be equipped with upper chamfering.
3. multi-functional insertion packer according to claim 2, which is characterized in that the bias guide posts are among itself
Scraping block is laid in the cylindrical outer wall of section, scraping stock material is hard alloy, and scraping block welding is in eccentric guide posts, in vertical
Distribution.
4. multi-functional insertion packer according to claim 1 or 2 or 3, which is characterized in that the outer wall of the insertion tube is
Taper, the lower end outer diameter of insertion tube, which is less than, wants closed down-hole oil tube internal diameter, and the upper end outer diameter of insertion tube is equal to be closed
Down-hole oil tube internal diameter.
5. multi-functional insertion packer according to claim 4, which is characterized in that the bottom of the seal groove is drilled with company
Through-hole, the intercommunicating pore are communicated with the inner via hole.
6. multi-functional insertion packer according to claim 5, which is characterized in that undergauge is arranged in the insertion drum outer wall
Portion, reducing diameter part cast packing sealed tube, and the material of sealing drum is lead, and sealing drum is tapered, and lower end is big, and upper end is small, the lower end of sealing drum
Equal with the outer diameter of the contact position of insertion tube, the upper end outer diameter of sealing drum is more than the outer diameter with the contact position of insertion tube.
7. multi-functional insertion packer according to claim 5 or 6, which is characterized in that the pitching valve includes sealing
Sliding sleeve, valve ball, installation sealing sliding sleeve in the blind hole, sealing sliding sleeve be on the connectivity slot, seal sliding sleeve with it is described
Gap between the inner wall of blind hole is sealed by sliding sleeve sealing ring, and sliding sleeve sealing ring is mounted in the annular groove on sealing sliding sleeve, institute
The diameter for stating valve ball is more than the internal diameter of sealing sliding sleeve, and the upper port fitted seal of valve ball and sealing sliding sleeve, sealing sliding sleeve is by level pressure
Pin is connected on connection connector, and level pressure pin is under sliding sleeve sealing ring.
8. the multi-functional insertion packer according to claims 1 or 2 or 3 or 5 or 6, which is characterized in that in the insertion tube
End connection upper connection, the upper connection bottom face open up limit annular groove, and the limit annular groove can clasp to be sealed
The down-hole oil tube closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820130012.XU CN207847585U (en) | 2018-01-25 | 2018-01-25 | Multi-functional insertion packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820130012.XU CN207847585U (en) | 2018-01-25 | 2018-01-25 | Multi-functional insertion packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207847585U true CN207847585U (en) | 2018-09-11 |
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ID=63412373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820130012.XU Active CN207847585U (en) | 2018-01-25 | 2018-01-25 | Multi-functional insertion packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207847585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080713A (en) * | 2018-01-25 | 2019-08-02 | 中国石油化工股份有限公司 | A kind of multi-functional insertion packer |
-
2018
- 2018-01-25 CN CN201820130012.XU patent/CN207847585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080713A (en) * | 2018-01-25 | 2019-08-02 | 中国石油化工股份有限公司 | A kind of multi-functional insertion packer |
| CN110080713B (en) * | 2018-01-25 | 2023-07-04 | 中国石油化工股份有限公司 | Multifunctional insertion packer |
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