CN208380537U - Coiled tubing cuts unfreezing fishing device - Google Patents
Coiled tubing cuts unfreezing fishing device Download PDFInfo
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- CN208380537U CN208380537U CN201820712211.1U CN201820712211U CN208380537U CN 208380537 U CN208380537 U CN 208380537U CN 201820712211 U CN201820712211 U CN 201820712211U CN 208380537 U CN208380537 U CN 208380537U
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- outer sleeve
- guide shoe
- coiled tubing
- installation cavity
- top connection
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Abstract
The utility model relates to drilling tool technical fields, specially a kind of coiled tubing cuts unfreezing fishing device, including top connection, outer sleeve and guide shoe, the lower part of top connection is fixedly connected with outer sleeve, the lower end of outer sleeve is fixedly connected with guide shoe, the inside of outer sleeve is equipped with transparent installation cavity, the middle part of outer sleeve is equipped with the pin hole being connected with installation cavity, the through-hole of vertical direction is equipped with inside guide shoe, the installation cavity upper end of outer sleeve is connected with top connection, and the lower end of outer sleeve is connected with the through-hole of guide shoe.The utility model reasonable and compact in structure, it is easy to use, pass through the cooperation of slips and slip spider, slips can be effectively set to be fixed together with by card coiled tubing, the cooperation of cut ring and cutting ring seat can make cut ring by being cut off by card division position by card coiled tubing, will quickly and effectively be taken out by the coiled tubing of card, the difficulty for reducing coiled tubing unfreezing saves the time of unfreezing.
Description
Technical field
The utility model relates to drilling tool technical fields, are a kind of coiled tubing cutting unfreezing fishing devices.
Background technique
With the popularization and popularization and application of coiled tubing underground work technology, more and more coiled tubings are applied to oil
Gas field underground work scene, however along with the extensive use of the operation technique, card is met in coiled tubing underground in operation process
The case where also happen occasionally.Since coiled tubing wall thickness itself is relatively thin, the relatively conventional tubing string of material is softer, tensile strength is smaller etc.
Characteristic, once underground occur and met card situation, the difficulty for carrying out unfreezing by coiled tubing itself is larger, and coiled tubing is caused to meet
Unfreezing is difficult after card, and time-consuming for unfreezing.
Summary of the invention
The utility model provides a kind of coiled tubing cutting unfreezing fishing device, overcome the above-mentioned prior art no
Foot, after can effectively solve underground chance card situation, the difficulty for carrying out unfreezing by coiled tubing itself is larger, causes coiled tubing
Unfreezing is difficult after meeting card, unfreezing the problem of time-consuming.
The technical solution of the utility model is realized by following measures: a kind of coiled tubing cutting unfreezing fishing dress
It sets, including top connection, outer sleeve and guide shoe, the lower part of top connection is fixedly connected with outer sleeve, and the lower end of outer sleeve is fixedly connected
There is guide shoe, the inside of outer sleeve is equipped with transparent installation cavity, and the middle part of outer sleeve is equipped with the pin hole being connected with installation cavity,
The through-hole of vertical direction is equipped with inside guide shoe, the installation cavity upper end of outer sleeve is connected with top connection, the lower end of outer sleeve with draw
The through-hole of shoes is connected, and being set on the top of outer sleeve installation cavity can be equipped with to the slips of contract, the lower inside of slips
Slip insert, the middle part of outer sleeve installation cavity are fixedly connected with slip spider by pin hole and shear pin, the lower outside of slips with
The upper inner of slip spider matches, and the installation cavity inner sleeve below slip spider is equipped with can be to the cut ring of contract, cut ring
Lower end inside be equipped with cutting edge, cutting ring seat is fixedly connected in the installation cavity below cut ring, outside the lower part of cut ring
Side is matched with the upper inner of cutting ring seat, slip spider, cut ring and internal diameter of the internal diameter not less than slips for cutting ring seat.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
Above-mentioned slips includes the elastic card of slips lantern ring and at least two, and the lower end of slips lantern ring has at least uniformly at intervals
Three elastic cards, the inside of elastic card are laid with circumferential slip insert, and the lower outside of elastic card is inside
Inclined-plane；Or/and the middle part of slip sleeve is equipped with circumferential groove, the inside of shear pin is located in the circumferential groove of slip sleeve, slip sleeve
Upper inner is up big and down small inner conical surface, and the upper inner of slip sleeve is matched with the inclined-plane of elastic card lower outside.
Above-mentioned cut ring includes the elasticity slice of cutting collar and at least three, and the lower end of cutting collar is equipped with uniformly at intervals
At least three elasticity slice, the lower end inside that elasticity is sliced are equipped with cutting edge, and the lower outside of elasticity slice is inwardly oblique
Face；Or/and the lower part of outer sleeve is laid at least two bolt hole, outer sleeve is fixed by stop screw and bolt hole
Cutting ring seat is installed, the upper inner for cutting ring seat is up big and down small inner conical surface, cuts the upper inner and elasticity of ring seat
The inclined-plane of slice lower outside matches.
Above-mentioned top connection be it is up big and down small, the upper inner of top connection is equipped with internal screw thread, the lower outside of top connection and outer
It is fixed together on the inside of the upper end of sleeve, the lower end of top connection is formed with boss in the installation cavity of outer sleeve.
Above-mentioned guide shoe be it is up-small and down-big, the lower end of guide shoe is downward elliptical arc surface, the upper outside and outer sleeve of guide shoe
Lower end inside be threadably secured and link together, the upper end of guide shoe is formed with boss in the installation cavity of outer sleeve.
The utility model reasonable and compact in structure, it is easy to use, by the cooperation of slips and slip spider, can effectively make
Slips is fixed together with by card coiled tubing, the cooperation of cut ring and cutting ring seat, can make cut ring will be by the continuous oil of card
Pipe is cut off by card division position, will quickly and effectively be taken out by the coiled tubing of card, is reduced the difficulty of coiled tubing unfreezing, save
Time of unfreezing.
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 slips in attached drawing 1.
Attached drawing 3 is the main view section view enlarged structure schematic diagram of cut ring in attached drawing 1.
Attached drawing 4 is the main view section view enlarged structure schematic diagram of slip spider in attached drawing 1.
Coding in attached drawing is respectively as follows: 1 for top connection, and 2 be outer sleeve, and 3 be guide shoe, and 4 be installation cavity, and 5 be slips, and 6 are
Slip insert, 7 be shear pin, and 8 be slip spider, and 9 be cut ring, and 10 is cut ring seat, and 11 be slips lantern ring, and 12 be elastic card
Piece, 13 be cutting collar, and 14 be elasticity slice, and 15 be cutting edge, and 16 be stop screw.
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 1,2, which cuts unfreezing fishing device, including top connection 1, outer sleeve 2 and guide shoe 3,
The lower part of top connection 1 is fixedly connected with outer sleeve 2, and the lower end of outer sleeve 2 is fixedly connected with guide shoe 3, and the inside of outer sleeve 2 is equipped with
Transparent installation cavity 4, the middle part of outer sleeve 2 are equipped with the pin hole being connected with installation cavity 4, vertical side are equipped with inside guide shoe 3
To through-hole, 4 upper end of installation cavity of outer sleeve 2 is connected with top connection 1, and the lower end of outer sleeve 2 is connected with the through-hole of guide shoe 3
Logical, slips can be laid with to the slips 5 of contract, the lower inside of slips 5 by being set on the top of 2 installation cavity 4 of outer sleeve
The middle part of tooth 6,2 installation cavity 4 of outer sleeve is fixedly connected with slip spider 8, the lower outside of slips 5 by pin hole and shear pin 7
Matched with the upper inner of slip spider 8, be set in the installation cavity 4 below slip spider 8 can to the cut ring 9 of contract,
The lower end inside of cut ring 9 is equipped with cutting edge 15, and cutting ring seat 10 is fixedly connected in the installation cavity 4 below cut ring 9, is cut
The lower outside for cutting ring 9 is matched with the upper inner of cutting ring seat 10, slip spider 8, cut ring 9 and the internal diameter for cutting ring seat 10
Not less than the internal diameter of slips 5.In this way, slips 5, slip spider 8, cut ring 9 and cutting ring seat 10 be it is public, working
When, the upper inner of top connection 1 and the lower end of fishing string are fixed together, and are transferred to continuously then as fishing string
The Position on the top of the fish of oil pipe enters the top of fish of coiled tubing in guide shoe 3 by movable fishing string, and makes the fish of coiled tubing
Top sequentially passes through guide shoe 3, cutting ring seat 10, cut ring 9, slip spider 8, slips 5 and top connection 1 until the utility model is down toward even
The target position cut needed for continuous oil pipe, above mentions fishing string at this time, slips 5 is made to block the fish position of coiled tubing simultaneously
Relative movement downwards, the lower part of slips 5 squeeze under the action of slip spider 8 to contract, and final slips 5 is tight by slip insert 6
It tightly blocks at the fish of coiled tubing, the salvage of coiled tubing can be continued at this time, continue above to mention fishing string, block
Watt seat 8 is increased by the downward effect stress of slips 5, and final slip spider 8 cuts shear pin 7, and slips 5 and slip spider 8 are whole
It glides and is pressed in cut ring 9, for cut ring 9 under downward pressure, the lower part of cut ring 9 and the top of cutting ring seat 10 are mutual
Effect, forces the lower part of cut ring 9 to contract, the cutting edge 15 of 9 lower end inside of cut ring is right under the action of radial pressure
Coiled tubing carry out from outside to inside cut, as the promotion pulling force of fishing string is increasing, the cutting force of cut ring 9
Also increasing, until coiled tubing is cut off, upper body fishing string is continued thereafter with, then can carry out the well by cut end
The interior coiled tubing by card.
Above-mentioned coiled tubing cutting unfreezing fishing device can be made further optimization and/or improvements according to actual needs:
As shown in attached drawing 1,2, slips 5 includes the elastic card 12 of slips lantern ring 11 and at least two, slips lantern ring 11
Lower end is equipped at least three elastic card 12 uniformly at intervals, and the inside of elastic card 12 is laid with circumferential slip insert 6, bullet
Property card 12 lower outside be inside inclined-plane；Or/and the middle part of slip sleeve 8 is equipped with circumferential groove, the inside of shear pin 7
In the circumferential groove of slip sleeve 8, the upper inner of slip sleeve 8 is up big and down small inner conical surface, the upper inner of slip sleeve 8 with
The inclined-plane of 12 lower outside of elastic card matches.In this way, the elastic card 12 that 11 lower end of slips lantern ring is uniformly arranged can have
Effect makes the lower part of slips 5 to contract, the inner conical surface of 8 upper inner of inclined-plane and slip sleeve of the lower outside of elastic card 12
It can effectively make to match between slips 5 and slip spider 8.
As shown in attached drawing 1,2, cut ring 9 includes the elasticity slice 14 of cutting collar 13 and at least three, cutting collar 13
Lower end be equipped with uniformly at intervals at least three elasticity slice 14, elasticity slice 14 lower end inside be equipped with cutting edge 15, elasticity
The lower outside of slice 14 is inside inclined-plane；Or/and the lower part of outer sleeve 2 is laid at least two bolt hole, housing
Cylinder 2 is fixedly installed with cutting ring seat 10 by stop screw 16 and bolt hole, and the upper inner of cutting ring seat 10 is up big and down small
Inner conical surface, cut ring seat 10 upper inner with elasticity be sliced 14 lower outsides inclined-plane match.In this way, cutting collar 13
The uniformly distributed elasticity slice 14 in lower end can effectively make the lower part of cut ring 9 to contract, and elasticity is sliced 14 lower outside
Inclined-plane and the inner conical surface for cutting 10 upper inner of ring seat can effectively make to match between cut ring 9 and cutting ring seat 10.
As shown in attached drawing 1,2, top connection 1 be it is up big and down small, the upper inner of top connection 1 is equipped with internal screw thread, top connection 1
It is fixed together on the inside of lower outside and the upper end of outer sleeve 2, the lower end of top connection 1 shape in the installation cavity 4 of outer sleeve 2
At there is boss.In this way, the internal screw thread of 1 upper inner of top connection can be effectively fixed together with fishing string, above connect
The boss that first 1 lower end is formed in the installation cavity 4 of outer sleeve 2 can limit the position that slips 5 moves up, and effectively prevent card
Watts 5 detach from the top connection 1 of the utility model, ensure that the stability of the utility model.
As shown in Fig. 1, guide shoe 3 is up-small and down-big, and the lower end of guide shoe 3 is downward elliptical arc surface, outside the top of guide shoe 3
The lower end inside of side and outer sleeve 2, which is threadably secured, to link together, the upper end of guide shoe 3 shape in the installation cavity 4 of outer sleeve 2
At there is boss.
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: top connection 1 and the lower end of metering fishing string are consolidated when use
Dingan County is fitted together, and is then carried out in the steps below:
It determines Position on the top of the fish, measures the length of fishing string and the utility model coiled tubing cutting unfreezing fishing device,
The utility model coiled tubing cutting unfreezing fishing device after being completed is with fishing string G.I.H, until Position on the top of the fish
Top of fish is introduced guide shoe 3, and transfers fishing string certain position by movable fishing string, make top of fish along the inner cavity of outer sleeve 2 according to
It is secondary to pass through cutting ring seat 10, cut ring 9, slip spider 8, slips 5 and top connection 1 until the utility model is needed for coiled tubing
The target position cut, above mentions fishing string at this time, since the split-type elastic card 12 and slip insert 6 of slips 5 are card
Watts 5, which block fish, provides pretightning force, and when upper lifting pipe post, slips 5 blocks fish and relatively moves downwards, 5 lower outside of slips
It with the inner conical surface mutual extrusion of slip spider 8, forces slips 5 to contract, tightly blocks fish, complete to salvage.
Continue above to mention fishing string, slip spider 8 is increased by the downward effect stress of slips 5, since slip spider 8 is sheared
Pin 7 limits, and when the axial load of slip spider 8 is promoted to the shear strength of shear pin 7, shear pin 7 is cut, slips 5
It glides and is pressed in cut ring 9 with 8 entirety of slip spider, cut ring 9 is under downward pressure, the lower part of cut ring 9 and cut ring
The inner conical surface interaction of seat 10, forces the lower part of cut ring 9 to contract, the cutting edge 15 of 9 lower end inside of cut ring is in diameter
Cutting from outside to inside is carried out to coiled tubing under the action of to pressure, with fishing string promotion pulling force increasingly
Greatly, the cutting force of cut ring 9 is also increasing, until coiled tubing is cut off, continues thereafter with upper body fishing string, then can carry
Out by the well of cut end by the coiled tubing of card.
Claims (9)
1. a kind of coiled tubing cuts unfreezing fishing device, it is characterised in that including top connection, outer sleeve and guide shoe, top connection
Lower part is fixedly connected with outer sleeve, and the lower end of outer sleeve is fixedly connected with guide shoe, and the inside of outer sleeve is equipped with transparent peace
It behave affectedly, the middle part of outer sleeve is equipped with the pin hole being connected with installation cavity, the through-hole of vertical direction is equipped with inside guide shoe, outer sleeve
Installation cavity upper end is connected with top connection, and the lower end of outer sleeve is connected with the through-hole of guide shoe, on the top of outer sleeve installation cavity
Being set with can be to the slips of contract, and the lower inside of slips is equipped with slip insert, the middle part of outer sleeve installation cavity by pin hole and
Shear pin is fixedly connected with slip spider, and the lower outside of slips is matched with the upper inner of slip spider, below slip spider
Installation cavity inner sleeve equipped with can be to the cut ring of contract, the lower end inside of cut ring is equipped with cutting edge, below cut ring
Cutting ring seat is fixedly connected in installation cavity, the lower outside of cut ring is matched with the upper inner of cutting ring seat, slip spider,
The internal diameter of cut ring and cutting ring seat is not less than the internal diameter of slips.
2. coiled tubing according to claim 1 cuts unfreezing fishing device, it is characterised in that slips includes slips lantern ring
With at least three elastic card, there is at least two elastic card in the lower end of slips lantern ring uniformly at intervals, elastic card it is interior
Portion is laid with circumferential slip insert, and the lower outside of elastic card is inside inclined-plane；Or/and the middle part of slip sleeve is equipped with
The inside of circumferential groove, shear pin is located in the circumferential groove of slip sleeve, and the upper inner of slip sleeve is up big and down small inner conical surface,
The upper inner of slip sleeve is matched with the inclined-plane of elastic card lower outside.
3. coiled tubing according to claim 1 or 2 cuts unfreezing fishing device, it is characterised in that cut ring includes cutting
Lantern ring and at least three elasticity slice, the lower end of cutting collar is equipped at least three elasticity slice uniformly at intervals, and elasticity cuts
The lower end inside of piece is equipped with cutting edge, and the lower outside of elasticity slice is inside inclined-plane；Or/and the lower part of outer sleeve is uniformly distributed
Equipped at least two bolt hole, outer sleeve is fixedly installed with cutting ring seat by stop screw and bolt hole, cuts ring seat
Upper inner is up big and down small inner conical surface, and the upper inner for cutting ring seat is matched with the inclined-plane of elasticity slice lower outside.
4. coiled tubing according to claim 1 or 2 cuts unfreezing fishing device, it is characterised in that top connection be it is upper it is big under
Small, the upper inner of top connection is equipped with internal screw thread, is fixedly connected on one on the inside of the lower outside of top connection and the upper end of outer sleeve
It rises, the lower end of top connection is formed with boss in the installation cavity of outer sleeve.
5. coiled tubing according to claim 3 cuts unfreezing fishing device, it is characterised in that top connection be it is up big and down small,
The upper inner of top connection is equipped with internal screw thread, is threadably secured connection on the inside of the lower outside of top connection and the upper end of outer sleeve
Together, the lower end of top connection is formed with boss in the installation cavity of outer sleeve.
6. coiled tubing according to claim 1 or 2 cuts unfreezing fishing device, it is characterised in that guide shoe be it is upper it is small under
Greatly, the lower end of guide shoe is downward elliptical arc surface, and the upper outside of guide shoe and the lower end inside of outer sleeve are threadably secured company
It is connected together, the upper end of guide shoe is formed with boss in the installation cavity of outer sleeve.
7. coiled tubing according to claim 3 cuts unfreezing fishing device, it is characterised in that guide shoe be it is up-small and down-big, draw
The lower end of shoes is downward elliptical arc surface, and the upper outside of guide shoe and the lower end inside of outer sleeve are threadably secured and are connected to one
It rises, the upper end of guide shoe is formed with boss in the installation cavity of outer sleeve.
8. coiled tubing according to claim 4 cuts unfreezing fishing device, it is characterised in that guide shoe be it is up-small and down-big, draw
The lower end of shoes is downward elliptical arc surface, and the upper outside of guide shoe and the lower end inside of outer sleeve are threadably secured and are connected to one
It rises, the upper end of guide shoe is formed with boss in the installation cavity of outer sleeve.
9. coiled tubing according to claim 5 cuts unfreezing fishing device, it is characterised in that guide shoe be it is up-small and down-big, draw
The lower end of shoes is downward elliptical arc surface, and the upper outside of guide shoe and the lower end inside of outer sleeve are threadably secured and are connected to one
It rises, the upper end of guide shoe is formed with boss in the installation cavity of outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820712211.1U CN208380537U (en) | 2018-05-14 | 2018-05-14 | Coiled tubing cuts unfreezing fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820712211.1U CN208380537U (en) | 2018-05-14 | 2018-05-14 | Coiled tubing cuts unfreezing fishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208380537U true CN208380537U (en) | 2019-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820712211.1U Active CN208380537U (en) | 2018-05-14 | 2018-05-14 | Coiled tubing cuts unfreezing fishing device |
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| CN (1) | CN208380537U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533202A (en) * | 2018-05-14 | 2018-09-14 | 中国石油天然气集团公司 | Coiled tubing cuts unfreezing fishing device |
| CN111088798A (en) * | 2019-12-31 | 2020-05-01 | 华北水利水电大学 | Treatment system and method for reinforcing steel bars and steel strands under pile hole |
| CN111485826A (en) * | 2020-04-07 | 2020-08-04 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional drilling branch hole sidetracking device and method |
-
2018
- 2018-05-14 CN CN201820712211.1U patent/CN208380537U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533202A (en) * | 2018-05-14 | 2018-09-14 | 中国石油天然气集团公司 | Coiled tubing cuts unfreezing fishing device |
| CN111088798A (en) * | 2019-12-31 | 2020-05-01 | 华北水利水电大学 | Treatment system and method for reinforcing steel bars and steel strands under pile hole |
| CN111088798B (en) * | 2019-12-31 | 2021-09-21 | 华北水利水电大学 | Treatment system and method for reinforcing steel bars and steel strands under pile hole |
| CN111485826A (en) * | 2020-04-07 | 2020-08-04 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional drilling branch hole sidetracking device and method |
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