CN208380540U - Light pipe shape junk unfreezing fishing device - Google Patents
Light pipe shape junk unfreezing fishing device Download PDFInfo
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- CN208380540U CN208380540U CN201820713655.7U CN201820713655U CN208380540U CN 208380540 U CN208380540 U CN 208380540U CN 201820713655 U CN201820713655 U CN 201820713655U CN 208380540 U CN208380540 U CN 208380540U
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- ontology
- dipper
- top connection
- light pipe
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Abstract
The utility model relates to petroleum gas underground unfreezing fishing technical field of tools, it is a kind of light pipe shape junk unfreezing fishing device, it includes top connection, dipper ontology and guide shoe, the lower outside of top connection and the upper outside of dipper ontology are fixedly mounted, and the lower outside of dipper ontology and the upper inner of guide shoe are fixedly mounted；There is compression assembly in the lower inside limit installation in dipper ontology.The utility model reasonable and compact in structure, it is easy to use, it can be salvaged to coiled tubing in well or without box cupling thin-walled tubular junk, especially salvage stuck point position be located at fish bottom by card fish when, it is infused by ground face-pumping and establishes circulation, pumping liquid forms circulation by fish inner cavity to shaft bottom along fishing string, circulation fluid can effectively reach being rinsed by card division position for fish bottom, fish unfreezing can be preferably helped by the flushing of huge discharge or hot wash, light pipe class junk unfreezing in well is greatly improved, to improve the success rate of salvaging.
Description
Technical field
The utility model relates to petroleum gas underground unfreezing fishing technical field of tools, are a kind of light pipe shape junk unfreezings
Fishing device.
Background technique
During carrying out the Downhole Constructions such as sand washing, de-plugging with coiled tubing or conventional tubing string, it will usually due to
Enter well equipment or tubing string sand card, wax card etc. occurs and meets the reasons such as card phenomenon or oil pipe fatigue, weld seam desoldering, leads to continuous oil
Pipe or conventional tubing string fall into shaft bottom.
Such to fall well casing column generally and have the characteristics that following several classes: 1, junk top of fish is light-pipe structure without box cupling in well, such
The usual wall thickness of light pipe is relatively thin, and material is relatively soft；2, there are sand card or wax cards for the tubing string bottom equipment of such junk or tubing string
Deng chance card-like condition, unfreezing need to first be carried out by salvaging junk；3, the top of fish of such junk has a certain distance, and stuck point position apart from shaft bottom
Setting in fish bottom, through fishing string in Position on the top of the fish circulation flushing, it can not be flushed to shaft bottom stuck point, it is invalid to unfreezing
Fruit.
And current fishing tool can only be salvaged, cannot effectively flushing manhole bottom by card machine have and tubing string (i.e. do not have unfreezing
Function), then, for stuck point position in well be located at fish bottom by card fish, due to being difficult to unfreezing, then be difficult to successfully beat
Fishing.
Summary of the invention
The utility model provides a kind of light pipe shape junk unfreezing fishing device, overcomes the defects of the prior art,
It can effectively solve it is existing fall well casing column fishing tool salvage stuck point position be located at fish bottom by card fish when, due to difficulty
With unfreezing, lead to the problem that fishing success ratio is low；And the utility model has both the function of salvaging and unfreezing, which thereby enhances salvaging
Success rate.
The technical solution of the utility model is realized by following measures: a kind of light pipe shape junk unfreezing fishing dress
It sets, including top connection, dipper ontology and guide shoe, the lower outside of top connection and the upper outside of dipper ontology are fixedly mounted, fishing
The lower outside of cylinder ontology and the upper inner of guide shoe are fixedly mounted；There is compression in the lower inside limit installation in dipper ontology
Assembly, the dipper ontology inner sleeve between compression assembly and top connection are equipped with slip sleeve, and being mounted in slip sleeve has energy
Block the fishing slip of fish.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
Above-mentioned fishing slip includes slips ontology, and the top of slips ontology is limited by top connection bottom end, in slips ontology
The lower end edge circle spacing be provided at least two elastic card claws, be provided on the inside of elastic card claw tooth tip from top to bottom upward
Slip insert；Be provided on the inside of the elastic card claw below slip insert in it is interior it is it is outer under skewed interior guiding face.
Slips ontology above above-mentioned elastic card claw includes that the heavy wall section on top and lower inner diameter are greater than heavy wall section internal diameter
Thin segment, thin segment with above slip insert between elastic card claw on the inside of be provided with the transition conical surface being connected with thin segment, mistake
Cross conical surface taper with a narrow upper and lower width；Free gap is formed between adjacent elastic card claw, free gap extends upwardly to thin
Wall section.
It is provided on the outside of elastic card claw below above-mentioned slip insert in outside upper skewed outer contraction front under interior, in slip sleeve
Lower inside be provided with can with outer contraction front cooperate the limit conical surface, limit the conical surface above slip sleeve on the inside of be provided with out
The limiting groove of mouth upward, fishing slip are located in limiting groove, and outer contraction front energy seat is on the limit conical surface.
Above-mentioned compression assembly is cartridge, external compression annular groove is arranged at intervals with above and below the outside of cartridge, close
The inside of sealing cylinder is arranged at intervals with interior compression annular groove up and down；The lower inside of dipper ontology is provided with positive stop lug boss, slips
Set and cartridge are sequentially sleeved on from top to bottom in the dipper ontology between top connection and positive stop lug boss.
The lower outside of above-mentioned top connection and the upper outside of dipper ontology are threadably secured installation, outside top connection lower part
It is provided at least between on the outside of top connection below threaded connection section on the outside of side and dipper body upper part and on the inside of dipper ontology
One of sealing ring；The lower outside of dipper ontology and the upper inner of guide shoe are threadably secured installation.
The utility model reasonable and compact in structure, it is easy to use, it can be to coiled tubing in well or without box cupling thin-wall tube
Shape junk is salvaged, especially salvaging stuck point position be located at fish bottom by card fish when, by ground face-pumping infuse foundation follow
Ring, pumping liquid form circulation by fish inner cavity to shaft bottom along fishing string, and circulation fluid can effectively reach fish bottom
It is rinsed by card division position, fish unfreezing can preferably be helped by the flushing of huge discharge or hot wash, greatly improve well
Interior light pipe class junk unfreezing, to improve the success rate of salvaging.
Detailed description of the invention
Attached drawing 1 is the main view half section schematic of the best embodiment of the utility model.
Attached drawing 2 is the main view section view enlarged structure schematic diagram of fishing slip.
Attached drawing 3 is the main view section view enlarged structure schematic diagram of slip sleeve.
Attached drawing 4 is the main view half section enlarged structure schematic diagram of cartridge.
Coding in attached drawing is respectively as follows: 1 for top connection, and 2 be dipper ontology, and 3 be guide shoe, and 4 be slip sleeve, and 5 block to salvage
Watt, 6 be elastic card claw, and 7 be slip insert, and 8 be heavy wall section, and 9 be thin segment, and 10 be the transition conical surface, and 11 be free gap, and 12 be outer
Contraction front, 13 be the limit conical surface, and 14 be limiting groove, and 15 be cartridge, and 16 be external compression annular groove, and 17 be interior compression annular groove,
18 be positive stop lug boss, and 19 be sealing ring, and 20 be interior guiding face.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to specification
The Butut mode of attached drawing 1 is described, such as: front, rear, top, and bottom, left and right positional relationship be according to Figure of description 1
Butut direction determine.
The utility model is further described below with reference to examples and drawings:
As shown in attached drawing 1 to 4, which includes top connection 1, dipper ontology 2 and guide shoe 3,
The upper outside of the lower outside of top connection 1 and dipper ontology 2 is fixedly mounted, and the lower outside of dipper ontology 2 is upper with guide shoe 3
It is fixedly mounted on the inside of portion；There is compression assembly in the lower inside limit installation in dipper ontology 2, in compression assembly and top connection 1
Between 2 inner sleeve of dipper ontology be equipped with slip sleeve 4, in slip sleeve 4 be mounted have the fishing slip 5 that can block fish.
The utility model can be salvaged to coiled tubing in well or without box cupling thin-walled tubular junk, and total by compression
At the sealed connection for being salvaged junk is established in fishing string and well, junk is completed after being tightly connected in fishing string and well, can
Circulation is established to pass through ground face-pumping note, abundant circulation flushing shaft bottom is mentioned by card machine tool and tubing string to realize fish unfreezing significantly
High unfreezing success rate facilitates the successful salvaging of fish after unfreezing success.I.e. the utility model solves previous fishing tool
Can only salvage, cannot effectively flushing manhole bottom by card machine have and tubing string shortcoming.
Especially salvage stuck point position be located at fish bottom by card fish when, by ground face-pumping note foundation recycle, be pumped into
Liquid along fishing string by fish inner cavity to shaft bottom formed circulation, circulation fluid can effectively reach fish bottom by card division position
It is rinsed, fish unfreezing can preferably be helped by the flushing of huge discharge or hot wash, greatly improve light pipe class in well
Junk unfreezing, to improve the success rate of salvaging.
Guide shoe 3 during salvaging from guiding function, it is therefore an objective to the top of fish of fish is smoothly introduced in fishing slip 5.
Above-mentioned light pipe shape junk unfreezing fishing device can be made further optimization and/or improvements according to actual needs:
As shown in Fig. 2, fishing slip 5 includes slips ontology, and the top of slips ontology is limited by 1 bottom end of top connection,
The lower end edge circle spacing of slips ontology is provided at least two elastic card claws 6, is arranged from top to bottom in 6 inside of elastic card claw
There is the slip insert 7 of tooth tip upward；Be provided on the inside of elastic card claw 6 below slip insert 7 in it is interior it is it is outer under it is skewed in lead
Draw face 20.
By it is interior it is it is outer under skewed interior guiding face 20, fish is introduced into 6 inside of elastic card claw.
For tubing string, especially smooth tubing string, slip insert 7 is capable of increasing tubing string friction in down stroke, can effectively block
The tight fish into fishing slip 5.
As shown in attached drawing 1,2, the slips ontology of 6 top of elastic card claw includes that the heavy wall section 8 on top and lower inner diameter are greater than
The thin segment 9 of 8 internal diameter of heavy wall section, above the thin segment 9 and slip insert 7 between elastic card claw 6 on the inside of be provided with and thin segment 9
The transition conical surface 10 of linking, the taper with a narrow upper and lower width of the transition conical surface 10；Free gap is formed between adjacent elastic card claw 6
11, free gap 11 extends upwardly to thin segment 9.
In the opening to be expanded of elastic card claw 6 or contraction, thin segment 9 is that elastic card claw 6 provides flexible deformation, convenient for elasticity
Claw 6 opens and the switching of contraction state.
Free gap 11 is the space that elastic card claw 6 provides that expansion is opened.
As shown in attached drawing 1,2,3, it is provided on the outside of the elastic card claw 6 below slip insert 7 in outside upper skewed under interior
Outer contraction front 12 is provided with the limit conical surface 13 that can cooperate with outer contraction front 12 in the lower inside of slip sleeve 4, in the limit conical surface
It is provided with opening up limiting groove 14 on the inside of the slip sleeve 4 of 13 tops, fishing slip 5 is located in limiting groove 14, and
Outer 12 energy seat of contraction front is on the limit conical surface 13.
It is exerted a force by the limit conical surface 13 that slip sleeve 4 is arranged to the outer contraction front 12 of elastic card claw 6, is mentioned to elastic card claw 6
For contract power, after by inside active force, elastic card claw 6 is radially-inwardly shunk the outer contraction front 12 of elastic card claw 6.
As shown in attached drawing 1,4, compression assembly is cartridge 15, is arranged at intervals with above and below the outside of cartridge 15 outer
Annular groove 16 is compressed, interior compression annular groove 17 is arranged at intervals with above and below the inside of cartridge 15；In the lower inside of dipper ontology 2
It is provided with positive stop lug boss 18, slip sleeve 4 and cartridge 15 are sequentially sleeved between top connection 1 and positive stop lug boss 18 from top to bottom
Dipper ontology 2 in.
By the way that external compression annular groove 16 and interior compression annular groove 17 is arranged in cartridge 15, make cartridge 15 by sufficiently large
Downward axial force after, cartridge 15 faster downwards compression, fishing string is established by compressed cartridge 15
With the sealed connection for being salvaged junk in well；Conversely, after axial force disappears, 15 Rapid reversal compressive state of cartridge.
As shown in Fig. 1, the upper outside of the lower outside of top connection 1 and dipper ontology 2 is threadably secured installation, on
1 outside of top connection and 2 inside of dipper ontology below the threaded connection section of 1 lower outside of connector and 2 upper outside of dipper ontology
Between be provided at least one of sealing ring 19；The lower outside of dipper ontology 2 and the upper inner of guide shoe 3 are threadably secured peace
Dress.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
The use process of the best embodiment of the utility model: the utility model is connect by top connection 1 with fishing string
After good, decentralization the utility model to Position on the top of the fish operates fishing string, and top of fish is introduced guide shoe 3, and transfers the positioning of tubing string one
It sets, so that top of fish is passed through guide shoe 3 and enter in fishing slip 5；Due to selecting the slip insert 7 of fishing slip 5 to push up directly in fishing
Diameter is slightly less than with by the outer diameter of fishing tubing string, and when top of fish passes through fishing slip 5, the elastic card claw 6 of 5 lower part of fishing slip is slight swollen
Swollen, the elasticity of elastic card claw 6 itself blocks fish for slip insert 7 and provides pretightning force, above mentions fishing string at this time, then blocks fish
The fishing slip 5 on top is as relative movement and stress, continuation upper lifting pipe post, fishing slip 5 continue top of fish downwards in slip sleeve 4
It moves down, the outer contraction front 12 of 5 lower part of fishing slip and the limit conical surface 13 of slip sleeve 4 come into full contact with simultaneously stress, salvage card
Watts 5 outer contraction front 12 is limited the radially inward extruding force of the conical surface 13 by slip sleeve 4, makes fishing slip 5 to contract, with tightly
Block fish top of fish；
Continue above to mention fishing string, fishing slip 5 squeezes sealing as slip sleeve 4 moves down in dipper ontology 2
Packing element 15, cartridge 15, which is squeezed, occurs certain deformation, and 15 lateral surface of cartridge of compressional deformation is tightly attached to dipper ontology 2
Inner chamber body, medial surface are tightly attached to fish outer wall, to realize the sealing inside and outside fishing string and fish；Keep certain salvaging pipe
Column increasing productivity makes slip sleeve 4 that there is certain lower pressure cartridge 15 to be made to keep sealing, is pumped into liquid from ground at this time
Body, pumping liquid form circulation by fish inner cavity to shaft bottom along fishing string, and circulation fluid can effectively reach fish bottom
It is rinsed by card division position, fish unfreezing can preferably be helped by the flushing of huge discharge or hot wash, greatly improve well
The success rate of interior light pipe class junk unfreezing, salvaging.
Claims (9)
1. a kind of light pipe shape junk unfreezing fishing device, it is characterised in that including top connection, dipper ontology and guide shoe, top connection
The upper outside of lower outside and dipper ontology is fixedly mounted, the lower outside of dipper ontology and the fixed peace of the upper inner of guide shoe
Dress；There is compression assembly in the lower inside limit installation in dipper ontology, the dipper ontology between compression assembly and top connection
Inner sleeve is equipped with slip sleeve, and being mounted in slip sleeve has the fishing slip that can block fish.
2. light pipe shape junk unfreezing fishing device according to claim 1, it is characterised in that fishing slip includes slips sheet
The top of body, slips ontology is limited by top connection bottom end, and the lower end edge circle spacing of slips ontology is provided at least two
Elastic card claw is provided with the slip insert of tooth tip upward from top to bottom on the inside of elastic card claw；Elastic card claw below slip insert
Inside be provided in it is interior it is it is outer under skewed interior guiding face.
3. light pipe shape junk unfreezing fishing device according to claim 2, it is characterised in that the slips above elastic card claw
Ontology includes the heavy wall section on top and lower inner diameter is greater than the thin segment of heavy wall section internal diameter, above the thin segment and slip insert between
Elastic card claw on the inside of be provided with the transition conical surface being connected with thin segment, transition conical surface taper with a narrow upper and lower width；Adjacent
Free gap is formed between elastic card claw, free gap extends upwardly to thin segment.
4. light pipe shape junk unfreezing fishing device according to claim 2 or 3, it is characterised in that the elasticity below slip insert
It is provided on the outside of claw in outside upper skewed outer contraction front under interior, being provided in the lower inside of slip sleeve can be with outer contraction front
The limit conical surface of cooperation is provided with opening up limiting groove, fishing slip position on the inside of the slip sleeve above the limit conical surface
In in limiting groove, and outer contraction front energy seat is on the limit conical surface.
5. light pipe shape junk unfreezing fishing device according to claim 1 or 2 or 3, it is characterised in that compression assembly is close
Sealing cylinder is arranged at intervals with external compression annular groove above and below the outside of cartridge, in the inside of cartridge between the upper and lower every setting
There is interior compression annular groove；The lower inside of dipper ontology is provided with positive stop lug boss, slip sleeve and cartridge are from top to bottom sequentially
It is sleeved in the dipper ontology between top connection and positive stop lug boss.
6. light pipe shape junk unfreezing fishing device according to claim 4, it is characterised in that compression assembly is cartridge,
It is arranged at intervals with external compression annular groove above and below the outside of cartridge, interior compression is arranged at intervals with above and below the inside of cartridge
Annular groove；The lower inside of dipper ontology is provided with positive stop lug boss, slip sleeve and cartridge are sequentially sleeved on from top to bottom
In dipper ontology between connector and positive stop lug boss.
7. light pipe shape junk unfreezing fishing device described according to claim 1 or 2 or 3 or 6, it is characterised in that under top connection
Be threadably secured installation on the outside of portion with the upper outside of dipper ontology, top connection lower outside on the outside of dipper body upper part
At least sealing ring together is provided between on the outside of top connection below threaded connection section and on the inside of dipper ontology；Under dipper ontology
Installation is threadably secured with the upper inner of guide shoe on the outside of portion.
8. light pipe shape junk unfreezing fishing device according to claim 4, it is characterised in that the lower outside of top connection with
The upper outside of dipper ontology is threadably secured installation, the threaded connection on the outside of top connection lower outside and dipper body upper part
At least sealing ring together is provided between on the outside of the top connection of section lower section and on the inside of dipper ontology；The lower outside of dipper ontology with
The upper inner of guide shoe is threadably secured installation.
9. light pipe shape junk unfreezing fishing device according to claim 5, it is characterised in that the lower outside of top connection with
The upper outside of dipper ontology is threadably secured installation, the threaded connection on the outside of top connection lower outside and dipper body upper part
At least sealing ring together is provided between on the outside of the top connection of section lower section and on the inside of dipper ontology；The lower outside of dipper ontology with
The upper inner of guide shoe is threadably secured installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820713655.7U CN208380540U (en) | 2018-05-14 | 2018-05-14 | Light pipe shape junk unfreezing fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820713655.7U CN208380540U (en) | 2018-05-14 | 2018-05-14 | Light pipe shape junk unfreezing fishing device |
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| Publication Number | Publication Date |
|---|---|
| CN208380540U true CN208380540U (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820713655.7U Active CN208380540U (en) | 2018-05-14 | 2018-05-14 | Light pipe shape junk unfreezing fishing device |
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| CN (1) | CN208380540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518193A (en) * | 2018-05-14 | 2018-09-11 | 中国石油天然气集团公司 | Light pipe shape junk unfreezing fishing device |
-
2018
- 2018-05-14 CN CN201820713655.7U patent/CN208380540U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518193A (en) * | 2018-05-14 | 2018-09-11 | 中国石油天然气集团公司 | Light pipe shape junk unfreezing fishing device |
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