CN207144888U - A kind of a wide range of fishing spear - Google Patents
A kind of a wide range of fishing spear Download PDFInfo
- Publication number
- CN207144888U CN207144888U CN201720977081.XU CN201720977081U CN207144888U CN 207144888 U CN207144888 U CN 207144888U CN 201720977081 U CN201720977081 U CN 201720977081U CN 207144888 U CN207144888 U CN 207144888U
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- CN
- China
- Prior art keywords
- shaft
- split
- slip cap
- slideway
- upper slip
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Abstract
The utility model discloses a kind of a wide range of fishing spear, including mandrel and the upper slip cap and lower slider set that are enclosed in mandrel, described mandrel includes shaft and is connected to top connection and the adjusting set of shaft upper and lower ends, four pieces of split-type slips are connected between upper slip cap and lower slider set, T-shape head is provided with the both ends of split-type slips, T-shape slot is provided with the upper end that the lower end of upper slip cap and lower slider cover, T-shape head links together upper slip cap and lower slider set after being caught in T-shape slot.Because split-type slips can move radially in shaft, salvaged so as to adapt to the fish of different-diameter, salvaging scope is bigger, can not could be used that when accurately fish diameter；Double-conical-surface of the split-type slips with being provided with mutual cooperation in mandrel simultaneously, increases forced contact area, improves and salvages power.
Description
Technical field
A kind of a wide range of fishing spear is the utility model is related to, belongs to underground fishing technical field.
Background technology
" salvaging " refers to be used to handle such as drilling rod, drill collar in oil, gas well and meets card, pulls out and twists off or because other reasons fall
The drilling rod of well, pull shaft bottom activity junk out, salvage breakdown or meet the process of card cable etc..It is every that any of the above described one kind occurs
Problem, normal drilling well, well workover and well completion work are intended to interrupt, and could only recover after fishing success.
Inherently more flexible and changeable technical process is salvaged, a kind of accident there are several processing methods when many.But,
If various factors is all taken into account, it is the best approach that may there was only one kind.So it is the most important stage to formulate salvaging scheme
One of, because correctly scheme and tool combinations can reduce salvaging cost.Most commonly used fishing tool is both at home and abroad at present
Fishing socket and fishing spear.
In fishing, it is not exactly accurate that the internal-and external diameter of downhole tubular fish, which is solved, sometimes, just knows that one
General scope, so require that the salvaging scope of fishing tool is larger, fishing success ratio is larger so as to one time.It is another
Aspect, due to usually using some aided drilling instruments in drillng operation, including with class bumper jar, damper etc. is bored, work as needs
When salvaging these instruments, the uncertainty of the internal diameter due to salvaging position, existing fishing tool tends not to meet live work
The requirement of industry, and then influence the efficiency of accident treatment.
Now domestic fishing socket and the general slips of fishing spear can only correspond to the fish of a size, and whole drill string
There are many different sizes, you can not be expected to break somewhere, if each size matches somebody with somebody a slips, generally require to match somebody with somebody
Go out ten several slips, one come match somebody with somebody too many client can not receive, if two to be unworthy of it is complete, just in case the fish size broken is just
Do not match somebody with somebody, really had little time until drill string or sleeve pipe etc. break in underground, it is impossible to salvage in time, it is likely that occur more serious
Down-hole accident, so being either still required for research and development are a kind of to salvage work on a large scale from the angle of company from the angle of client
Tool.
Utility model content
The purpose of this utility model is, there is provided one kind is simple in construction, easy to use, salvages scope extensively, fishing success ratio
High a wide range of fishing spear, so as to reduce the species of supporting slips, reduce and salvage cost, improve and salvage efficiency.
The technical solution of the utility model：A kind of a wide range of fishing spear, including mandrel and the upper slip that is enclosed in mandrel
Set and lower slider set, described mandrel includes shaft and is connected to top connection and the leading cone of shaft upper and lower ends, upper
Four pieces of split-type slips are connected between slip cap and lower slider set, T-shape head is provided with the both ends of split-type slips,
The lower end of upper slip cap and the upper end of lower slider set are provided with T-shape slot, and T-shape head is caught in upper slip after T-shape slot
Set and lower slider set link together, and the inwall of split-type slips is provided with inverted cone surface, are provided with shaft and inverted cone surface
The inversed taper platform of cooperation, stop collar is cased between top connection and upper slip cap in shaft, upper slip cap and stop collar it
Between be provided with buffer spring, swivel becket is cased between stop collar and upper slip cap in shaft, and swivel becket is arranged on
In slip cap, in the rotational pin that has been inserted radially into of swivel becket, described rotational pin can be slided in the snakelike slideway on shaft outer wall
It is dynamic.
Further, the inwall of the split-type slips is provided with two inverted cone surfaces, and two and back taper are provided with shaft
The inversed taper platform that face coordinates.
Further, adjusting set is threaded between lower slider set and leading cone in the shaft, is limited by adjusting set
The stroke of lower slider set processed, so as to reach the opening scope of control split-type slips.
Further, annular groove is provided with the outer wall of four pieces of split-type slips, made in transport and in horizontal well
Used time, after usable finer wire is fixed on annular groove, flap-type slips is avoided to occur taking situation under loosening.
Further, the oral area of the T-shape slot is fixed with pressing plate by screw, prevents that T-shape head is sliding out of T-shape slot
Go out.
Further, the snakelike slideway includes the short slideway of radial direction being disposed alternately on shaft outer wall and radially long slideway,
The short slideway of adjacent radial direction is connected with radially long slideway by inverting slideway.
Due to using above-mentioned technical proposal, the utility model has the advantage of：
1st, it is wide to salvage scope：Because split-type slips can move radially in shaft, so as to adapt to different-diameter
Fish is salvaged, and salvaging scope is bigger, can not could be used that when accurately fish diameter；
2nd, accessory is few：The utility model only need to be furnished with 2-3 kinds slips can be to cover conventional ten several slips of fishing tool
Scope；
3rd, can be used in horizontal well：There is annular groove in four pieces of the provided circumferentially about of split-type slips, use finer wire
After being fixed on annular groove, horizontal positioned split-type slips is not in take situation under loosening；
4th, the utility model is designed with snakelike slideway in mandrel, and by handling mandrel, rotational pin can be in snakelike slideway
Motion, rotational pin of handling can enter the long slideway of radial direction of snakelike slideway, and split-type slips can open engagement with the fish, again
Handling rotational pin enters the short slideway of radial direction of snakelike slideway, and split-type slips can not open, so as to discharge fish；
5th, the salvaging scope of slips is increased using split-type slips, and four pieces of split-type slips pass through T-shape head and upper cunning
The T-shape slot that dynamic set and lower slider are put links together, and four pieces of split-type slips is turned into an entirety when moving up and down,
Ensure synchronism of the slips when salvaging；
6th, Double-conical-surface of the split-type slips with being provided with mutual cooperation in mandrel, increases forced contact area, improves and salvages
Power；
7th, swivel becket of the present utility model is stand-alone configuration, and rotational pin is arranged on swivel becket, during handling only
Need swivel becket to rotate, broken away from original rotational pin and be installed on outer barrel, the mode that outer barrel must rotate in handling drill string,
So as to reduce frictional force, the reliability of pick-and-place fish is added；
8th, adjusting set of the present utility model is threadedly coupled with the lower end of mandrel, by adjusting between adjusting set and lower slider set
Spacing control the full-size that split-type slips opens, reach the purpose that scope is salvaged in regulation, to meet accurately to salvage
It is required that.
Brief description of the drawings
Fig. 1 is assembling structure schematic diagram of the present utility model；
Fig. 2 is the explosive view of structural representation of the present utility model；
Fig. 3 is the connection structure diagram of split-type slips and upper slip cap and stop collar；
Fig. 4 is the deployed configuration schematic diagram of snakelike slideway；
Fig. 5 is that fishing spear is gone into the well into structural representation during fish；
Fig. 6 is structural representation when being slipped out of the hand on fishing spear；
Fig. 7 bites structural representation during fish for the split-type slips on fishing spear.
Description of reference numerals：1- mandrels, 2- buffer springs, the upper slip caps of 3-, 4- split-type slips, 5- annular grooves, under 6-
Slip cap, 7.1- adjusting sets, 7.2- leading cones, 8- shafts, 9- top connections, 10- inversed taper platforms, 11- stop collars, 12- swivel beckets, 13-
Rotational pin, 14- inverted cone surfaces, the snakelike slideways of 15-, the short slideway of 15a- radial directions, 15b- inverting slideways, the long slideway of 15c- radial directions, 16-
Screw, 17- T-shape heads, 18- T-shape slots, 19- pressing plates.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are clearer, it is right with reference to the accompanying drawings and examples
The utility model is described in further detail.
Embodiment of the present utility model：The structural representation of a wide range of fishing spear as shown in Figures 1 to 3, including mandrel 1 and
Upper slip cap 3 and the lower slider set 6 being enclosed in mandrel 1, described mandrel 1 include shaft 8 and are connected to shaft about 8
The top connection 9 at both ends and leading cone 7.2, adjusting set is threaded between lower slider set 6 and leading cone 7.2 in shaft 8
7.1, the stroke of lower slider set 6 is limited by adjusting set 7.1, so as to reach the opening scope of control split-type slips 4.In upper cunning
Four pieces of split-type slips 4 are connected between dynamic set 3 and lower slider set 6, T-shape head is provided with the both ends of split-type slips 4
17, T-shape slot 18 is provided with the upper end of the lower end of upper slip cap 3 and lower slider set 6, T-shape first 17 is caught in T-shape slot
Upper slip cap 3 and lower slider set 6 are linked together after 18, pressing plate 19 is fixed with by screw 16 in the oral area of T-shape slot 18,
Prevent T-shape first 17 from being skidded off out of T-shape slot 18；The inwall of split-type slips 4 is provided with two inverted cone surfaces 14, in shaft 8
On be provided with two with inverted cone surface 14 coordinate inversed taper platforms 10, annular groove 5 is provided with the outer wall of four pieces of split-type slips 4；
Stop collar 11 is cased between top connection 9 and upper slip cap 3 in shaft 8, is set between upper slip cap 3 and stop collar 11
There is buffer spring 2, be cased with swivel becket 12 between stop collar 11 and upper slip cap 3 in shaft 8, and swivel becket 12 is arranged on
In upper slip cap 3, rotational pin 13 is inserted radially into swivel becket 12, described rotational pin 13 can be in the snake on the outer wall of shaft 8
Slided in shape slideway 15；Referring to Fig. 4, the snakelike slideway 15 includes the short slideway of radial direction being disposed alternately on the outer wall of shaft 8
15a and radially long slideway 15c, the short slideway 15a of adjacent radial direction are connected with radially long slideway 15c by inverting slideway 15b.
Operation principle of the present utility model：Top connection 9 is connected on drill string first, and in four pieces of split-type slips 4
Finer wire is bundled on annular groove 5, avoids occurring taking situation under loosening in the decentralization process of split-type slips 4.Referring to Fig. 5, initial bit
When putting, rotational pin 13 is in radially short slideway 15a positions；Referring to Fig. 6, after fishing spear enters fish, fish head promotes stop collar
11 is up, and rotational pin 13 is slid at inverting slideway 15b, and now, stop collar 11 compresses spacing with top connection 9, prevents rotational pin
13 damage slideway by pressure with the snakelike contact of slideway 15；Referring to Fig. 7, drill string is above carried, rotational pin 13 slides into radially long slideway 15c
Place, split-type slips 4 gradually opens under the active force of buffer spring 2 becomes big so that and split-type slips 4 tightly blocks fish,
Continue above to carry drill string, split-type slips 4 bites fish, with shaft to clamping force in fish generation under spring force
Up, the inverted cone surface 14 on the inwall of split-type slips 4 is bonded with the inversed taper platform 10 on the outer wall of shaft 8, upper lifting force increase, split-type
The clamping force of slips 4 also increases so that the triangle tooth on split-type slips 4 bites fish outer wall, continues above to carry and achieves that
Salvage.
When occur fish it is stuck can not pull out situation when, then transfer drill string, now rotational pin 13 can be from snakelike slideway 15
The long slideway 15c of radial direction slip into inverting slideway 15b, now, inverted cone surface 14 on the inwall of split-type slips 4 with the outer wall of shaft 8
Inversed taper platform 10 separate, split-type slips 4 can not clamp fish again, and so as to discharge fish, realization is slipped out of the hand.
Claims (6)
1. a kind of a wide range of fishing spear, including mandrel (1) and the upper slip cap (3) and lower slider set that are enclosed in mandrel (1)
(6), it is characterised in that：Described mandrel (1) includes shaft (8) and is connected to the top connection of shaft (8) upper and lower ends
(9) and leading cone (7.2), four pieces of split-type slips (4) are connected between upper slip cap (3) and lower slider set (6), in split-type
The both ends of slips (4) are provided with T-shape head (17), are all provided with the upper end of the lower end of upper slip cap (3) and lower slider set (6)
T-shape slot (18) is equipped with, upper slip cap (3) and lower slider set (6) are connected to by T-shape head (17) after being caught in T-shape slot (18)
Together, the inwall of split-type slips (4) is provided with inverted cone surface (14), is provided with shaft (8) and coordinates with inverted cone surface (14)
Inversed taper platform (10), stop collar (11) is cased between top connection (9) and upper slip cap (3) in shaft (8), in upper slip
Buffer spring (2) is provided between set (3) and stop collar (11), positioned at stop collar (11) and upper slip cap (3) in shaft (8)
Between be cased with swivel becket (12), and swivel becket (12) is arranged in slip cap (3), is turned in being inserted radially into for swivel becket (12)
Dynamic pin (13), described rotational pin (13) can slide in the snakelike slideway (15) on shaft (8) outer wall.
2. a wide range of fishing spear according to claim 1, it is characterised in that：The inwall of the split-type slips (4) is set
There are two inverted cone surfaces (14), two inversed taper platforms (10) coordinated with inverted cone surface (14) are provided with shaft (8).
3. a wide range of fishing spear according to claim 1, it is characterised in that：It is located at lower slider set (6) on the shaft (8)
Adjusting set (7.1) is threaded between leading cone (7.2).
4. a wide range of fishing spear according to claim 1, it is characterised in that：The outer wall of four pieces of split-type slips (4)
On be provided with annular groove (5).
5. a wide range of fishing spear according to claim 1, it is characterised in that：The oral area of the T-shape slot (18) passes through spiral shell
Nail (16) is fixed with pressing plate (19).
6. a wide range of fishing spear according to claim 1, it is characterised in that：The snakelike slideway (15) includes being arranged alternately
The short slideway of radial direction (15a) and the long slideway (15c) of radial direction on shaft (8) outer wall, the short slideway of adjacent radial direction (15a) and radial direction
Long slideway (15c) is connected by inverting slideway (15b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720977081.XU CN207144888U (en) | 2017-08-07 | 2017-08-07 | A kind of a wide range of fishing spear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720977081.XU CN207144888U (en) | 2017-08-07 | 2017-08-07 | A kind of a wide range of fishing spear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207144888U true CN207144888U (en) | 2018-03-27 |
Family
ID=61674213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720977081.XU Active CN207144888U (en) | 2017-08-07 | 2017-08-07 | A kind of a wide range of fishing spear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207144888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435526A (en) * | 2017-08-07 | 2017-12-05 | 贵州高峰石油机械股份有限公司 | A kind of a wide range of fishing spear and its Refloatation method |
-
2017
- 2017-08-07 CN CN201720977081.XU patent/CN207144888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435526A (en) * | 2017-08-07 | 2017-12-05 | 贵州高峰石油机械股份有限公司 | A kind of a wide range of fishing spear and its Refloatation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |