CN209339901U - A kind of expansion type packing device of extension hanger - Google Patents
A kind of expansion type packing device of extension hanger Download PDFInfo
- Publication number
- CN209339901U CN209339901U CN201822070174.1U CN201822070174U CN209339901U CN 209339901 U CN209339901 U CN 209339901U CN 201822070174 U CN201822070174 U CN 201822070174U CN 209339901 U CN209339901 U CN 209339901U
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- China
- Prior art keywords
- tube
- expansion
- extension hanger
- cavity
- tube body
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Abstract
The utility model relates to petroleum drilling and mining fields, the expansion type packing device of especially a kind of extension hanger, it is arranged between drilling tool and extension hanger, for insulating upper layer casing and lower layer's casing, the extension hanger is connected with lower layer's casing, it include: expansion base tube, the expansion base tube includes the first tube body and the second tube body, first tube wall is generally in contact with upper layer internal surface of sleeve pipe, the outer diameter of second tube body is less than the first tube body, it is arranged with rubber tube on the second tube body, gap is equipped between the rubber tube and the upper layer internal surface of sleeve pipe.The structure design of the utility model is reasonable, it is different from the top packer of existing extension hanger, it can be connected on existing extension hanger, additional work progress is not needed, using the principle of extrusion deformation, it is adjacent to rubber tube uniformly in the casing of upper layer using fluid pressure, it is present to be honored as a queen while extension hanger seat be assisted to hang, realize the Bidirectional suspension of extension hanger, application range is more extensive.
Description
Technical field
The utility model relates to petroleum drilling and mining field, the expansion type packing device of especially a kind of extension hanger.
Background technique
Existing top packing formula extension hanger is that top envelope is devised on the basis of new packer liner-hanger hanger at present
Every device, make the existing hanging function of conventional hanger, and is able to achieve packing upper and lower level casing.Existing packing formula extension hanger
Generally using combination rubber cartridge form, this structure is needed after hanger cementing practice, is above submitted top packer
Enter tool, then passes through specific setting device and push tie-back sleeve topmost, compression packing element progress is setting, but tool is along upper
Casing leads to rubber tube wear-out failure during being downwardly into, the rubber tube after abrasion can exist upon inflation gap or because
It wears and is detached from horizontal position and gap equally occur, to influence the setting effect of packer, can not all seal isolation up and down
, there is the phenomenon that upper and lower level casing is mutually altered, bring risk to subsequent tripping in power tool in exposed locations between layer casing.
Utility model content
The utility model provides a kind of expansion type packing device of extension hanger, it is reasonable in design, is different from
The top packer of existing extension hanger can be connected on existing extension hanger, do not needed additional work progress, adopted
With the principle of extrusion deformation, rubber tube is adjacent to uniformly in the casing of upper layer using fluid pressure, setting effect is improved, setting
Extension hanger seat can be assisted to hang simultaneously afterwards, realize the Bidirectional suspension of extension hanger, application range is more extensive, solves existing
There is the problem of technology.
Used technical solution is the utility model to solve above-mentioned technical problem: a kind of expansion type of extension hanger
Packing device is arranged between drilling tool and extension hanger, for insulating upper layer casing and lower layer's casing, the extension hanger
It is connected with lower layer casing, comprising:
Base tube is expanded, the expansion base tube includes the first tube body and the second tube body, and first tube wall and upper layer cover
Inside pipe wall is in contact, and the outer diameter of second tube body is arranged with rubber tube, the rubber less than the first tube body on the second tube body
Gap is equipped between cylinder and the upper layer internal surface of sleeve pipe；
Connecting tube, the connecting tube and it is described expansion base tube the first tube body end mutually activity clamping, the connecting tube with
Drilling tool is connected；
It is movably equipped with central tube in expansion base tube, the bottom end of the central tube is connected with extension hanger, the center
The top of pipe is located at the expansion substrate tube；
It is equipped with the first cavity between central tube and expansion base tube, is equipped with and is actively socketed on outside central tube in the first cavity
Expansion piece, the expansion piece activity be fastened on first tube body and the second tube body connection crossover position, in the central tube
It is equipped with the blocker ring being located at the top of expansion piece, the inlet opening being connected with the first cavity is equipped on central tube；
It is equipped with and is connected the piston that inside pipe wall matches on the top of connecting tube, is equipped on connection inside pipe wall for making to live
Plug stops the lockable mechanism of sliding, the first sealing ring abutted against with central tube is equipped on the lockable mechanism, in connecting tube
The second cavity is equipped between interior lockable mechanism and piston；
Pressure relief device, the pressure relief device make the first cavity and the second cavity be connected.
Preferably, the lockable mechanism includes the first lock claw for being threaded in connection tube end, in the second cavity
First lock claw is equipped with lock groove, and the latch that cooperation is plugged with lock groove is equipped on the piston.
Preferably, the pressure relief device includes the groove being arranged in piston lower central pipe outer wall, in the first lock
The first sealing ring abutted against with central tube, the distance between described groove and latch end etc. are equipped with below the lock groove of pawl
In the distance between the first sealing ring and locking trench bottom, so that the groove location of the central tube corresponds to the first sealing ring position
It sets, for being connected to the first cavity and the second cavity.
Preferably, the bottom of first lock claw be equipped with card slot, between expansion base tube and the central tube be equipped with
The second lock claw of first lock claw Xiang Kashe, in the fixture block that the top of the second lock claw is equipped with and the first lock claw card slot matches, so that
Base tube must be expanded and connecting tube phase active card is set.
Preferably, the first tube body of the expansion base tube becomes smaller from pipe end to the second tube body orient diameter, so that first
Radial expansion piece direction becomes smaller in the cavity of cavity, sets the second lock claw for card.
Preferably, the bottom interval of second lock claw is equipped with multiple plug to the elastic claw in the first cavity.
Preferably, the second sealing ring is equipped between second lock claw and expansion base tube.
Preferably, top connection is threaded in connecting tube, the piston and top connection activity abut against, it is described on connect
Head is equipped with the lifting sub being connected with drilling tool.
Preferably, the lifting sub is connected with top connection screw thread, and the is equipped between the lifting sub and top connection
Three sealing rings.
Preferably, it is connected at the top of the blocker ring and expansion piece.
The beneficial effect of the utility model using the above structure is, reasonable in design, is different from existing extension hanger
Top packer, can be connected on existing extension hanger, not need additional work progress, using the original of extrusion deformation
Reason, is adjacent to rubber tube uniformly in the casing of upper layer using fluid pressure, improves setting effect, present to be honored as a queen while assist
Extension hanger seat is hung, and realizes the Bidirectional suspension of extension hanger, application range is more extensive.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is first lock claw of the utility model and the structural schematic diagram of the second lock claw cooperation.
Fig. 3 is the schematic cross-sectional view of first lock claw of the utility model.
Fig. 4 is the schematic cross-sectional view in the direction A-A in Fig. 2.
In figure, 1, expansion base tube；101, the first tube body；102, the second tube body；2, rubber tube；3, connecting tube；4, central tube；
5, the first cavity；6, expansion piece；7, blocker ring；8, inlet opening；9, piston；901, latch；10, the first sealing ring；11, second
Cavity；12, the first lock claw；1201, lock groove；1202, card slot；13, groove；14, the second lock claw；1401, fixture block；1402, bullet
Property pawl；15, the second sealing ring；16, top connection；17, lifting sub；18, third sealing ring.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality
It is described in detail with novel.
As shown in Figs 1-4, the expansion type packing device of a kind of extension hanger, setting drilling tool and extension hanger it
Between, for insulating upper layer casing and lower layer's casing, the extension hanger is connected with lower layer's casing, comprising:
Base tube 1 is expanded, the expansion base tube 1 includes the first tube body 101 and the second tube body 102, outside first tube body 101
Wall and upper layer internal surface of sleeve pipe are in contact, and the outer diameter of second tube body 102 covers on the second tube body 102 less than the first tube body 101
Equipped with rubber tube 2, gap is equipped between the rubber tube 2 and the upper layer internal surface of sleeve pipe；
101 end of the first tube body mutually activity clamping of connecting tube 3, the connecting tube 3 and the expansion base tube 1, the company
Adapter tube 3 is connected with drilling tool；
Expansion base tube 1 in be movably equipped with central tube 4, the bottom end of the central tube 4 is connected with extension hanger, it is described in
The top of heart pipe 4 is located inside the expansion base tube 1；
It is equipped with the first cavity 5 between central tube 4 and expansion base tube 1, is equipped in the first cavity 5 and is actively socketed on center
Expansion piece 6 outside pipe 4,6 activity of expansion piece are fastened on first tube body 101 and the second tube body 102 connection crossover position,
It is equipped with the blocker ring 7 for being located at 6 top of expansion piece on the central tube 4, is equipped on central tube 4 and is connected with the first cavity 5
Inlet opening 8；
In the piston 9 that the top of connecting tube 3 is equipped with and 3 inner wall of connecting tube matches, it is equipped with and is used on 3 inner wall of connecting tube
So that piston 9 is stopped the lockable mechanism of sliding, the first sealing ring 10 abutted against with 4 pipe of center be equipped on the lockable mechanism,
The second cavity 11 is equipped between the lockable mechanism in connecting tube 3 and piston 9；
Pressure relief device, the pressure relief device make the first cavity 5 be connected with the second cavity 11.
The lockable mechanism includes the first lock claw 12 for being threaded in 3 end of connecting tube, and in the second cavity 11
One lock claw 12 is equipped with lock groove 1201, and the latch 901 that cooperation is plugged with lock groove 1201 is equipped on the piston 9.
In order to accurately obtain the information that expansion movement is completed, the pressure relief device includes being arranged under piston 9
Groove 13 on square 4 outer wall of central tube is equipped with first abutted against with central tube 4 below the lock groove 1201 of the first lock claw 12
Sealing ring 10, the distance between 901 end of the groove 13 and latch are equal to 1201 bottom of the first sealing ring 10 and lock groove
The distance between, so that 13 position of groove of the central tube 4 corresponds to 10 position of the first sealing ring, it is empty for being connected to first
Chamber 5 and the second cavity 11.
It in order to keep connecting tube 3 and expansion base tube 1 good fit, and both avoids relatively rotating, described the
The bottom of one lock claw 12 is equipped with card slot 1202, is equipped with and 12 Xiang Kashe of the first lock claw between the expansion base tube 1 and central tube 4
The second lock claw 14, be equipped with and the fixture block 1401 that matches of 12 card slot 1202 of the first lock claw at the top of the second lock claw 14 so that
Base tube 1 must be expanded and 3 phase active card of connecting tube is set.By the clamping engagement of card slot 1202 and fixture block 1401, make connecting tube 3 and swollen
The good fit connection of swollen base tube 1 avoids the two and relatively rotates.
The second lock claw 14 card is set in the first cavity 5 for convenience, does not need to can be achieved with the by other connector
First tube body 101 of the connection of two lock claw 14 and the first cavity 5, the expansion base tube 1 is straight from pipe end to 102 direction of the second tube body
Diameter becomes smaller, so that 6 direction of radial expansion piece becomes smaller in the cavity of the first cavity 5, sets the second lock claw 14 for card.It is described swollen
Swollen part 6 selects cone-shaped expansion piece, and described cone-shaped small one end of expansion piece diameter is arranged towards 102 direction of the second tube body.
It is set in the first cavity 5 to enable the second lock claw 14 to block, the bottom interval of second lock claw 14 is equipped with more
It is a to plug to the elastic claw 1402 in the first cavity 5.The elastic claw 1402 of second lock claw 14 is inserted into the first cavity 5, because
For elastic claw 1402 can deformation occurs, because 6 direction of radial expansion piece becomes smaller in the cavity of the first cavity 5, elastic claw
1402 slowly can inwardly gather deformation during being downwardly into along the first cavity 5, finally set 14 top card of the second lock claw
To the end of the first cavity 5, the second lock claw 14 can be made to fit snugly in the first cavity 5 without other connectors, structure is closed
Reason is novel.
In order to reinforce the second lock claw 14 and expand the airtightness between base tube 1, in second lock claw 14 and expansion base tube 1
Between be equipped with the second sealing ring 15.
Top connection 16 is threaded in connecting tube 3, the piston 9 and 16 activity of top connection abut against, it is described on connect
First 16 are equipped with the lifting sub 17 being connected with drilling tool.Taper thread cooperation is connected between the top connection 16 and connecting tube 3.
The lifting sub 17 is connected with 16 screw thread of top connection, is equipped between the lifting sub 17 and top connection 16
Third sealing ring 18.The lifting sub 17 and extension hanger are cooperatively connected using taper thread.
It is connected at the top of the blocker ring 7 and expansion piece 6.It can also abut against and set at the top of the blocker ring 7 and expansion piece 6
It sets.When central tube 4 is along connecting tube 3 and expansion 1 inside slide downward of base tube, blocker ring 7 pushes expansion piece 6 along the first cavity 5
It pushes down on, expansion piece 6 struts the second tube body 102 outward, and the rubber tube 2 outside the second tube body 102 is strutted, rubber tube is made
2 and upper layer internal surface of sleeve pipe be in close contact, realize expansion base tube 1 and upper layer casing connection cooperation.
When using the present apparatus, the lower end of central tube is threadedly coupled with extension hanger sealing drum, along the upper layer of drilling
After casing is lowered into design position, routinely construction process seat hang and cementing job.When the rubber plug in investment upper layer casing touches
After pressure, the injection pressure device of well head continues to pressurize, and after when upper layer, inside pipe casing pressure reaches tool expansion pressure, generates to piston 9
Level-one thrust, push piston 9 to move down in connecting tube 3, further push central tube 4 mobile by piston, central tube 4
On blocker ring 7 push expansion piece 6 moved along the first cavity 5, while highly pressurised liquid central tube 4 inside pass through central tube 4 on
Inlet opening 8 enter the first cavity 5 inside, to expansion piece 6 generate second level thrust, at this time 9 position of piston bear level-one thrust
With, to the second level thrust collective effect of expansion piece 6, make expansion piece 6 along 5 downlink extrusion expansion base of the first cavity in the first cavity 5
Pipe 1, making to expand the second tube body 102 of base tube 1, deformation occurs struts outward, and rubber tube 2 expands therewith, abutting upper layer casing
Inner wall reaches packing purpose.
For expansion piece 6 during downlink, the piston 9 of 4 end of central tube is along 11 synchronizing moving of the second cavity, when expansion piece 6
After the completion of lower the second hose expansion for exercising expansion base tube 1, the latch 901 on piston 9 just snaps fit onto the first lock claw 12
In lock groove 1201, the groove 13 on 4 outer wall of central tube is just corresponded in 10 position of the first sealing ring at this time, makes the first cavity 5
It is connected with the second cavity 11, the pressure inside the first cavity 5 discharges into the second cavity 11 by the groove 13 of central tube 4,
Pressurizing device instantaneous loss of pressure on well head at this time, according to pressurizing device feedback show complete expansion movement, pressurizing device stop after
Continuous pressurization, the upper drilling tool that mentions of staff can disengage connecting tube 3 from expansion base tube 1, reach permanent envelope every purpose.
Above-mentioned specific embodiment cannot function as the limitation to scope of protection of the utility model, for the skill of the art
For art personnel, any alternate modification or transformation made to the utility model embodiment all fall within the guarantor of the utility model
It protects in range.
Place is not described in detail for the utility model, is the well-known technique of those skilled in the art of the present technique.
Claims (10)
1. a kind of expansion type packing device of extension hanger is arranged between drilling tool and extension hanger, for insulating upper layer
Casing and lower layer's casing, the extension hanger are connected with lower layer's casing characterized by comprising
Base tube is expanded, the expansion base tube includes the first tube body and the second tube body, in first tube wall and upper layer casing
Wall is in contact, and the outer diameter of second tube body is arranged with rubber tube less than the first tube body on the second tube body, the rubber tube and
Gap is equipped between the upper layer internal surface of sleeve pipe；
The first tube body end mutually activity clamping of connecting tube, the connecting tube and the expansion base tube, the connecting tube and drilling tool
It is connected；
It is movably equipped with central tube in expansion base tube, the bottom end of the central tube is connected with extension hanger, the central tube
Top is located at the expansion substrate tube；
It is equipped with the first cavity between central tube and expansion base tube, it is swollen outside central tube equipped with being actively socketed in the first cavity
Swollen part, the expansion piece activity are fastened on first tube body and the second tube body connection crossover position, set on the central tube
There is the blocker ring being located at the top of expansion piece, the inlet opening being connected with the first cavity is equipped on central tube；
It is equipped with and is connected the piston that inside pipe wall matches on the top of connecting tube, is equipped on connection inside pipe wall for stopping piston
The lockable mechanism of sliding stop is equipped with the first sealing ring abutted against with central tube, in connecting tube on the lockable mechanism
The second cavity is equipped between lockable mechanism and piston；
Pressure relief device, the pressure relief device make the first cavity and the second cavity be connected.
2. a kind of expansion type packing device of extension hanger according to claim 1, which is characterized in that the locking machine
Structure includes the first lock claw for being threaded in connection tube end, lock groove is equipped in the first lock claw in the second cavity, in institute
It states piston and is equipped with the latch for plugging cooperation with lock groove.
3. a kind of expansion type packing device of extension hanger according to claim 2, which is characterized in that the pressure is released
Putting device includes the groove being arranged in piston lower central pipe outer wall, is equipped with below the lock groove of the first lock claw and central tube
The first sealing ring abutted against, the distance between the groove and latch end be equal to the first sealing ring and locking trench bottom it
Between distance so that the groove location of the central tube corresponds to the first sealing ring position, for being connected to the first cavity and second
Cavity.
4. a kind of expansion type packing device of extension hanger according to claim 2 or 3, which is characterized in that described
The bottom of first lock claw is equipped with card slot, and the second lock with the first lock claw Xiang Kashe is equipped between the expansion base tube and central tube
Pawl, in the fixture block that the top of the second lock claw is equipped with and the first lock claw card slot matches, so that expansion base tube is mutually lived with connecting tube
Dynamic card is set.
5. a kind of expansion type packing device of extension hanger according to claim 4, which is characterized in that the expansion base
First tube body of pipe becomes smaller from pipe end to the second tube body orient diameter, so that radial expansion piece direction in the cavity of the first cavity
Become smaller, sets the second lock claw for card.
6. a kind of expansion type packing device of extension hanger according to claim 5, which is characterized in that second lock
The bottom interval of pawl is equipped with multiple plug to the elastic claw in the first cavity.
7. a kind of expansion type packing device of extension hanger according to claim 5 or 6, which is characterized in that described
The second sealing ring is equipped between second lock claw and expansion base tube.
8. a kind of expansion type packing device of extension hanger according to claim 7, which is characterized in that in connecting tube
It is threaded with top connection, the piston and top connection activity abut against, and the top connection is equipped with the promotion being connected with drilling tool
Pipe nipple.
9. a kind of expansion type packing device of extension hanger according to claim 8, which is characterized in that the promotion is short
Section is connected with top connection screw thread, and third sealing ring is equipped between the lifting sub and top connection.
10. a kind of expansion type packing device of extension hanger according to claim 8 or claim 9, which is characterized in that the resistance
It is connected at the top of baffle ring and expansion piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070174.1U CN209339901U (en) | 2018-12-10 | 2018-12-10 | A kind of expansion type packing device of extension hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070174.1U CN209339901U (en) | 2018-12-10 | 2018-12-10 | A kind of expansion type packing device of extension hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209339901U true CN209339901U (en) | 2019-09-03 |
Family
ID=67756531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822070174.1U Expired - Fee Related CN209339901U (en) | 2018-12-10 | 2018-12-10 | A kind of expansion type packing device of extension hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209339901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320214A (en) * | 2021-12-29 | 2022-04-12 | 东营市兆鑫工贸有限责任公司 | Packer for producing and injecting steam |
-
2018
- 2018-12-10 CN CN201822070174.1U patent/CN209339901U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320214A (en) * | 2021-12-29 | 2022-04-12 | 东营市兆鑫工贸有限责任公司 | Packer for producing and injecting steam |
| CN114320214B (en) * | 2021-12-29 | 2022-06-07 | 东营市兆鑫工贸有限责任公司 | Packer for producing and injecting steam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190903 Termination date: 20201210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |