CN208380523U - Variable diameter pit shaft fishes out guiding device certainly - Google Patents
Variable diameter pit shaft fishes out guiding device certainly Download PDFInfo
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- CN208380523U CN208380523U CN201820712247.XU CN201820712247U CN208380523U CN 208380523 U CN208380523 U CN 208380523U CN 201820712247 U CN201820712247 U CN 201820712247U CN 208380523 U CN208380523 U CN 208380523U
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- China
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- guide shoe
- connecting cylinder
- interior guide
- pit shaft
- interior
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Abstract
It is a kind of variable diameter pit shaft from fishing out guiding device the utility model relates to underground operation tool technical field；It includes two-way outer guiding shoes, connecting cylinder and interior guide shoe；It is fixedly connected with connecting cylinder in the inside middle portion of two-way outer guiding shoes, interior guide shoe is fixedly connected with by the shear pin of at least one in the inside of connecting cylinder, is integrally fixed with interior land in the inside middle portion of interior guide shoe.The utility model reasonable and compact in structure, it is easy to use, pass through being used cooperatively for two-way outer guiding shoes, connecting cylinder and interior guide shoe, the utility model is set to have the function of two-way guiding and righting, fish out the purpose that can be given up certainly to realize, greatly reduce generation percussion drill during underground work equipment Downhole Construction, box cupling percussion drill and hang tag with tool and continuous pipe can not tripping in risk；Have the characteristics that safe and reliable, facilitates operation, improve work efficiency, reduce production cost.
Description
Technical field
It is a kind of variable diameter pit shaft from fishing out guiding device the utility model relates to underground operation tool technical field.
Background technique
In oil-gas field downhole operation work progress, the well of the types such as horizontal well, sidetracked hole, casing patching well, by
In the influence that itself well-completing process or Late reformation are constructed, such well usually has the characteristics that variable diameter casing programme.
During carrying out all kinds of Downhole Constructions for such well, since pit shaft is there are variable diameter, tubing string (or underground is made
Industry equipment) pass through variable diameter position when with many limitations: (1) influenced by variable diameter borehole size, underground work equipment is not
Centralizer can be installed again, generation percussion drill risk is high when the tubing string and equipment without righting pass through variable diameter position, serious to cause
Equipment damage, casing programme breakage or even bit freezing；(2) during lower tubular column, when string collar passes through variable diameter position, because not having
There is guidance, box cupling step surface occurs rigid collision with variable diameter step surface and contacts, box cupling percussion drill and the dangerous that hangs tag；(3) it uses
When continuous oil pipe operation, is had mercy on and spent due to the tubing string of coiled tubing itself, tubing string bottom tool flexion is affixed on casing wall tripping in, until variable diameter
When position, in default of corresponding righting and guiding, tool and continuous pipe will be unable to tripping in.
Summary of the invention
The utility model provides a kind of variable diameter pit shaft from guiding device is fished out, and overcomes the defects of the prior art,
It can effectively solve tubing string (or underground work equipment) to carry out that percussion drill risk, box cupling easily occurs during all kinds of Downhole Constructions
Percussion drill and the risk that hangs tag, tool and continuous pipe can not tripping in the problem of.
The technical solution of the utility model is realized by following measures: a kind of variable diameter pit shaft from fishing out guiding device,
Including two-way outer guiding shoes, connecting cylinder and interior guide shoe；It is fixedly connected with connecting cylinder in the inside middle portion of two-way outer guiding shoes, even
The inside of connect cylinder is fixedly connected with interior guide shoe by the shear pin of at least one, is integrally fixed in the inside middle portion of interior guide shoe
Interior land；The lower inside of connecting cylinder is provided with annular groove, is integrally fixed with outer chuck, interior guide shoe in the lower outside of interior guide shoe
Wild card decometer mounted in connecting cylinder annular groove in.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
The above-mentioned top in interior guide shoe is equipped with internal screw thread.
The upper end medial surface of above-mentioned interior land is inclined-plane wide at the top and narrow at the bottom；The lower end inside face of interior land is low wide and up narrow
Inclined-plane, the lower end inside face of interior guide shoe are low wide and up narrow inclined-plane, the lower end inside face of interior guide shoe and the lower end inside of interior land
Face flush.
The above-mentioned bottom in two-way outer guiding shoes is circumferentially arranged at intervals with groove.
The upper end medial surface of above-mentioned connecting cylinder is low wide and up narrow inclined-plane, and the lower end inside face of connecting cylinder is low wide and up narrow
Inclined-plane.
Above-mentioned two-way outer guiding shoes are fixed together with connecting cylinder by the shear pin of at least one.
Above-mentioned two-way outer guiding shoes are the two-way outer guiding shoes of tubular that upper and lower part internal diameter is big, middle part internal diameter is small；Or/
It is guide shoe in tubular with, interior guide shoe.
The utility model reasonable and compact in structure, it is easy to use, pass through matching for two-way outer guiding shoes, connecting cylinder and interior guide shoe
It closes and uses, the utility model is made to have the function of two-way guiding and righting, fish out the purpose that can be given up certainly to realize, greatly reduce
Percussion drill, box cupling percussion drill occur during underground work equipment Downhole Construction and hang tag can not tripping in tool and continuous pipe
Risk；Have the characteristics that safe and reliable, facilitates operation, improve work efficiency, reduce production cost.
Detailed description of the invention
Attached drawing 1 is schematic diagram of main cross-sectional structure of the best embodiment of the utility model.
Attached drawing 2 is the section view enlarged structure schematic diagram of two-way outer guiding shoes in the utility model.
Attached drawing 3 is the section view enlarged structure schematic diagram of connecting cylinder in the utility model.
Attached drawing 4 is the section view enlarged structure schematic diagram of interior guide shoe in the utility model.
Attached drawing 5 is the assembly schematic cross-sectional view of the utility model.
Coding in attached drawing is respectively as follows: 1 for two-way outer guiding shoes, and 2 be connecting cylinder, and 3 be interior guide shoe, and 4 be shear pin, and 5
It is annular groove for interior land, 6,7 be outer chuck, and 8 be groove, and 9 be down-hole casing, and 10 be well layer upper layer casing, and 11 be diameter changing device,
12 be tubing string.
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 Fig. 1, which includes two-way outer guiding shoes 1, connecting cylinder 2 and interior guide shoe 3 from guiding device is fished out；
It is fixedly connected with connecting cylinder 2 in the inside middle portion of two-way outer guiding shoes 1, in the shearing that the inside of connecting cylinder 2 passes through at least one
Pin 4 is fixedly connected with interior guide shoe 3, is integrally fixed with interior land 5 in the inside middle portion of interior guide shoe 3；In the lower part of connecting cylinder 2
Side is provided with annular groove 6, is integrally fixed with outer chuck 7 in the lower outside of interior guide shoe 3, the outer chuck 7 of interior guide shoe 3 is installed on connection
In the annular groove 6 of cylinder 2.Two-way outer guiding shoes 1 and interior guide shoe 3 can be existing public；In this way, by two-way outer guiding shoes 1,
Being used cooperatively for connecting cylinder 2 and interior guide shoe 3, makes the utility model have the function of two-way guiding and righting, to realize from fishing
Purpose greatly reduces tubing string 12(or underground work equipment) occur during Downhole Construction percussion drill, box cupling percussion drill and
Hang tag with tool and continuous pipe can not tripping in risk；Have the characteristics that safe and reliable, facilitate operation, improves work effect
Rate reduces production cost.
Above-mentioned variable diameter pit shaft can be made further optimization and/or improvements from fishing guiding device according to actual needs:
As shown in Fig. 1, internal screw thread is equipped on the top of interior guide shoe 3.In this way, when in use, the top of interior guide shoe 3 and pipe
Column 12(or underground work equipment) lower end be threadably secured and be installed together,
As shown in Fig. 1, the upper end medial surface of interior land 5 is inclined-plane wide at the top and narrow at the bottom；The lower end inside face of interior land 5 is
Low wide and up narrow inclined-plane, the lower end inside face of interior guide shoe 3 are low wide and up narrow inclined-plane, the lower end inside face of interior guide shoe 3 and inner ring
The lower end inside face flush of platform 5.In this way, interior land 5 is convenient for tubing string 12(or underground work equipment) it limits.
As shown in Fig. 1, groove 8 is circumferentially arranged at intervals in the bottom of two-way outer guiding shoes 1.In this way, being led outside two-way
Groove 8 on guide shoe 1 is convenient for entering well back seat appearing on the stage on terrace in pit shaft variable diameter position, tubing string 12(or underground work equipment)
Presentation is hampered phenomenon.
As shown in Fig. 1, the upper end medial surface of connecting cylinder 2 is low wide and up narrow inclined-plane, and the lower end inside face of connecting cylinder 2 is
Low wide and up narrow inclined-plane.In this way, the upper end medial surface of connecting cylinder 2 and lower end inside face are convenient in tubing string 12(or underground work machine
Tool) provide in tripping in or during above mention guiding and centralizing function.
As shown in Fig. 1, the shear pin 4 that two-way outer guiding shoes 1 and connecting cylinder 2 pass through at least one is fixedly connected on one
It rises.In this way, during upper lifting pipe post 12, connecting cylinder 2 is cut with what two-way outer guiding shoes 1 were connect if two-way outer guiding shoes 1 are by card
Pin 4 is cut by shearing force, continues upper lifting pipe post 12 and increases increasing productivity, until cutting between connecting cylinder 2 and two-way outer guiding shoes 1
It cuts pin 4 to be cut, pulls connecting cylinder 2 and interior guide shoe 3 out certainly, two-way outer guiding shoes 1 are given up, and realize the purpose that can be given up.
As shown in Fig. 1, it is led outside the tubular that two-way outer guiding shoes 1 are big for upper and lower part internal diameter, middle part internal diameter is small is two-way
Guide shoe 1；Or/and interior guide shoe 3 is guide shoe 3 in tubular.In this way, convenient for two-way outer guiding shoes 1 and interior guide shoe 3 in tubing string 12(or well
Lower work tool) provide in tripping in or during above mention preferably guiding and centralizing function.
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: as shown in Fig. 5, when in use, first by the upper of down-hole casing 9
End outside and the inside of the diameter changing device 11 of 10 lower inside of well layer upper layer casing are fixedly installed togather；It then will be originally practical new
The top of the interior guide shoe 3 of type and tubing string 12(or underground work equipment) lower end be threadably secured and be installed together, this is practical
It is novel with tubing string 12(or underground work equipment) G.I.H, until the diameter changing device 11(of well layer upper layer casing 10 is equivalent to one
Annular chuck) at, two-way outer 1 lower end surface of the shoes seat that guides of the utility model is in the diameter changing device 11 of well layer upper layer casing 10
On, tubing string 12(or underground work equipment) phenomenon that is hampered is presented；Continue to transfer tubing string 12(or underground work equipment at this time), increase
Tubing string 12(or underground work equipment) load is pushed, it is connected to tubing string 12(or underground work equipment) the interior guide shoe 3 of bottom is by under
Pressure, the shear pin 4 that connect interior guide shoe 3 with connecting cylinder 2 are cut, and interior guide shoe 3 is detached from connecting cylinder 2, after disengaging in draw
Shoes 3 are with tubing string 12(or underground work equipment) G.I.H progress operation, interior guide shoe 3 is with tubing string 12(or underground work equipment)
The guide shoe that lower going-into-well bottom can be used as operation uses, and seat is in the two-way outer guiding shoes on the diameter changing device 11 of well layer upper layer casing 10
1 and 2 composite structure of connecting cylinder then can to it is subsequent enter well casing column 12 play righting and guide function, enable tubing string 12 smoothly under
Enter.
After to underground work, tubing string 12(or underground work equipment are mentioned) during, seat is in well layer upper layer casing 10
Diameter changing device 11 on two-way outer guiding shoes 1 and 2 composite structure of connecting cylinder can be to the tubing string 12(or underground work machine above mentioned
Tool) righting and guiding are carried out, make tubing string 12(or underground work equipment) diameter changing device of well layer upper layer casing 10 can be passed through
11；With tubing string 12(or underground work equipment) proposition, when interior guide shoe 3 pass through connecting cylinder 2 when, make the outer chuck 7 of interior guide shoe 3
It is installed in the annular groove 6 of connecting cylinder 2, continues upper lifting pipe post 12(or underground work equipment), make two-way outer guiding shoes 1, connecting cylinder 2
With interior guide shoe 3 with tubing string 12(or underground work equipment) it proposes, realize the purpose from fishing；If two-way outer guiding shoes 1 by card, on
During mentioning tubing string 12, the shear pin 4 that connecting cylinder 2 is connect with two-way outer guiding shoes 1 is continued upper lifting pipe post 12 and increased by shearing force
Add increasing productivity, until the shear pin 4 between connecting cylinder 2 and two-way outer guiding shoes 1 is cut, pulls connecting cylinder 2 and interior out certainly
Guide shoe 3, two-way outer guiding shoes 1 are given up, and realize the purpose that can be given up, since two-way outer guiding shoes 1 have two-way guiding and righting
Two-way outer guiding shoes 1 are given up on the diameter changing device 11 of well layer upper layer casing 10, to subsequent operation and are produced without shadow by effect
It rings, can also continue to provide righting and guide function.
Claims (10)
1. a kind of variable diameter pit shaft fishes out guiding device certainly, it is characterised in that including two-way outer guiding shoes, connecting cylinder and interior guide shoe；Double
The inside middle portion of guiding shoes is fixedly connected with connecting cylinder outward, is fixed in the inside of connecting cylinder by the shear pin of at least one
It is connected with interior guide shoe, is integrally fixed with interior land in the inside middle portion of interior guide shoe；The lower inside of connecting cylinder is provided with annular groove,
It is integrally fixed with outer chuck in the lower outside of interior guide shoe, the wild card decometer of interior guide shoe is in the annular groove of connecting cylinder.
2. variable diameter pit shaft according to claim 1 fishes out guiding device certainly, it is characterised in that the top of interior guide shoe is equipped with interior spiral shell
Line.
3. variable diameter pit shaft according to claim 1 or 2 fishes out guiding device certainly, it is characterised in that the upper end medial surface of interior land
For inclined-plane wide at the top and narrow at the bottom；The lower end inside face of interior land is low wide and up narrow inclined-plane, and the lower end inside face of interior guide shoe is lower loose
Upper narrow inclined-plane, the lower end inside face of interior guide shoe and the lower end inside face flush of interior land.
4. variable diameter pit shaft according to claim 1 or 2 fishes out guiding device certainly, it is characterised in that the bottom of two-way outer guiding shoes
Circumferentially it is arranged at intervals with groove.
5. variable diameter pit shaft according to claim 3 fishes out guiding device certainly, it is characterised in that the bottom edge of two-way outer guiding shoes
Circle spacing setting is fluted.
6. variable diameter pit shaft described according to claim 1 or 2 or 5 fishes out guiding device certainly, it is characterised in that in the upper end of connecting cylinder
Side is low wide and up narrow inclined-plane, and the lower end inside face of connecting cylinder is low wide and up narrow inclined-plane.
7. variable diameter pit shaft according to claim 3 is from fishing out guiding device, it is characterised in that the upper end medial surface of connecting cylinder is
Low wide and up narrow inclined-plane, the lower end inside face of connecting cylinder are low wide and up narrow inclined-plane.
8. variable diameter pit shaft according to claim 4 is from fishing out guiding device, it is characterised in that the upper end medial surface of connecting cylinder is
Low wide and up narrow inclined-plane, the lower end inside face of connecting cylinder are low wide and up narrow inclined-plane.
9. variable diameter pit shaft described according to claim 1 or 2 or 5 or 7 or 8 fishes out guiding device certainly, it is characterised in that led outside two-way
Guide shoe is fixed together with connecting cylinder by the shear pin of at least one, or/and, two-way outer guiding shoes are top under
The two-way outer guiding shoes of tubular that portion's internal diameter is big, middle part internal diameter is small；Or/and interior guide shoe is guide shoe in tubular.
10. variable diameter pit shaft according to claim 6 fishes out guiding device certainly, it is characterised in that two-way outer guiding shoes and connecting cylinder
It is fixed together by the shear pin of at least one, or/and, two-way outer guiding shoes are that upper and lower part internal diameter is big or middle
The two-way outer guiding shoes of the small tubular of portion's internal diameter；Or/and interior guide shoe is guide shoe in tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820712247.XU CN208380523U (en) | 2018-05-14 | 2018-05-14 | Variable diameter pit shaft fishes out guiding device certainly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820712247.XU CN208380523U (en) | 2018-05-14 | 2018-05-14 | Variable diameter pit shaft fishes out guiding device certainly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208380523U true CN208380523U (en) | 2019-01-15 |
Family
ID=64970596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820712247.XU Active CN208380523U (en) | 2018-05-14 | 2018-05-14 | Variable diameter pit shaft fishes out guiding device certainly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208380523U (en) |
-
2018
- 2018-05-14 CN CN201820712247.XU patent/CN208380523U/en active Active
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