CN206830106U - Down-hole fishing device - Google Patents
Down-hole fishing device Download PDFInfo
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- CN206830106U CN206830106U CN201720533476.0U CN201720533476U CN206830106U CN 206830106 U CN206830106 U CN 206830106U CN 201720533476 U CN201720533476 U CN 201720533476U CN 206830106 U CN206830106 U CN 206830106U
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- Prior art keywords
- fishing rod
- hole
- connecting cylinder
- fishing device
- fishing
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Abstract
The utility model provides a kind of down-hole fishing device, including：Fishing rod, multiple recovery hooks are provided with the outer wall of the fishing rod, each recovery hook is used to hook the steel wire；Limiting unit, it is connected with one end of the fishing rod, during oil well described in the down-hole fishing device tripping in, the limiting unit, which is used to limit, makes the center line of the fishing rod be overlapped with the center line of the oil well.It is therefore possible to prevent during steel wire is salvaged, recovery hook is pasted by wax, to improve the success rate for salvaging well steel wire.
Description
Technical field
It the utility model is related to underground operation tool technical field, more particularly to a kind of down-hole fishing device.
Background technology
In oilfield development process, oil well paraffinication phenomenon is very universal, and 5000m oil well is more than for well depth, is typically adopted
Pit shaft paraffin removal is carried out with the method for mechanical paraffin removal, however, because mechanical paraffin removal is easily influenceed by the factor such as artificial or mechanical so that use
The phenomenon that shaft bottom is fallen into the steel wire of paraffin removal occurs often, is produced for guarantee and what the later stage tested is normally carried out, it is necessary to will fallen
The steel wire salvaging of well comes out, and recovers the normal production of oil well.
In the prior art, lance is dragged in oil well worker generally use to salvage the steel wire for falling into shaft bottom, this is interior to drag for lance knot
Structure generally includes two arc free arms positioned opposite, and is respectively arranged with the opposite inner face of two free arms multiple
Crotch, lance is dragged for after pit shaft is lowered into shaft bottom when this is interior, can be gone out the steel wire hook for falling into shaft bottom by crotch, so as to realize pair
Fall into the purpose that the steel wire in shaft bottom is salvaged.
However, in the oil well of high-content wax, if wax deposition is more serious, mistake of the lance through pit shaft lower going-into-well bottom is dragged for inside
Cheng Zhonghui touches the wax on pit shaft, because the existing interior structure for dragging for lance can not be timely by the wax assembled because being contacted with pit shaft
Discharge, therefore can cause the crotch on free arm to be pasted by wax, when it is interior drag for lance and be lowered into shaft bottom after, the crotch pasted by wax can not
Steel wire is hooked, so as to cause to salvage steel wire failure.
Utility model content
The utility model provides a kind of down-hole fishing device, and main purpose is prevented during steel wire is salvaged, and salvages
Hook is pasted by wax, to improve the success rate for salvaging well steel wire.
The utility model embodiment provides a kind of down-hole fishing device, and the steel wire of oil well is fallen into for salvaging, including：
Fishing rod, multiple recovery hooks are provided with the outer wall of the fishing rod, each recovery hook is used to hooking described
Steel wire.
Limiting unit, it is connected with one end of the fishing rod, during oil well described in the down-hole fishing device tripping in,
The limiting unit is used to make the center line of the fishing rod overlap with the center line of the oil well.
In one embodiment, length direction arrangement of multiple recovery hooks along the fishing rod.
In one embodiment, multiple recovery hooks are anisotropically arranged in the outer wall of the fishing rod.
In one embodiment, each recovery hook has connection end and free end.
The connection end is connected with the outer wall of the fishing rod.
The free end is arranged towards the limiting unit, each recovery hook is in tilted layout on the fishing rod.
In one embodiment, the free end of each recovery hook is tapered.
In one embodiment, the limiting unit, which includes both ends, has the connecting cylinder of opening and is arranged at described connecting cylinder one end
Connector.
The both ends open connection of the connecting cylinder.
The external diameter of the connecting cylinder is adapted with the internal diameter of the oil well.
One end of the fishing rod stretched into from the one end open of the connecting cylinder in the connecting cylinder and with the connector
Connection.
The other end of the fishing rod is revealed in the connecting cylinder.
In one embodiment, multiple guiding gutters are offered in the side wall of the connecting cylinder and connector.
In one embodiment, the down-hole fishing device also includes counterweight.
The counterweight is connected with one end of relatively described connecting cylinder in the connector.
In one embodiment, the counterweight includes weight linear meter.
One end of the weight linear meter is connected with one end of relatively described connecting cylinder in the connector.
The center line of the weight linear meter overlaps with the center line of the fishing rod.
In one embodiment, one end relative to the limiting unit of the fishing rod is tapered.
By above-mentioned technical proposal, down-hole fishing device of the present utility model at least has the advantages that：
Multiple recovery hooks for being used to hook well steel wire are provided with fishing rod, simultaneously as oil well is generally by pit shaft
Inwall starts wax deposition to the center of pit shaft, and therefore, the middle part of pit shaft is limited generally without wax by being connected in one end of fishing rod
Portion, the limiting unit can be such that the center line of fishing rod and oil well locates all the time during the down-hole fishing device tripping in oil well
In the state to overlap, that is, remain that fishing rod is located at the middle part of oil well, because the middle part of pit shaft is generally without wax, therefore,
Recovery hook will not be pasted by wax, can will smoothly fall well steel wire and hook, so as to improve the success rate for salvaging well steel wire.
Because the wire shape for falling into shaft bottom is random, therefore, by the way that multiple recovery hooks are anisotropically arranged in into salvaging
On bar outer wall, the probability that recovery hook hooks steel wire is favorably improved, so as to further improve the down-hole fishing device to falling
The fishing success ratio of well steel wire.
Meanwhile by the way that recovery hook is in tilted layout on fishing rod, effectively prevent during steel wire is salvaged, steel wire
Due to rocking and shaft bottom is fallen to unbalance stress or again from the down-hole fishing device, further to improve the well
Lower fishing device is to falling the fishing success ratio of well steel wire.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are
Some embodiments of the utility model, for those of ordinary skill in the art, do not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the down-hole fishing device that the utility model embodiment one provides；
Fig. 2 is the structural representation for the down-hole fishing device that the utility model embodiment two provides；
Fig. 3 is the structural representation for the down-hole fishing device that the utility model embodiment three provides；
Fig. 4 is the structural representation for the down-hole fishing device that the utility model embodiment four provides.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
In the following description, what different " embodiment " or " embodiment " referred to is not necessarily the same embodiment.In addition, one
Or special characteristic, structure or the feature in multiple embodiments can be combined by any suitable form.
Fig. 1 is the structural representation for the down-hole fishing device that the utility model embodiment one provides, as shown in figure 1, this reality
A kind of down-hole fishing device is provided with new embodiment, the steel wire of oil well, including fishing rod 1, the salvaging are fallen into for salvaging
Bar 1 can be made of a vertical iron staff, and multiple recovery hooks 11 for being used to hook steel wire are provided with its outer wall, are each beaten
Crowfoot 11 can be welded to connect with fishing rod 1, or be integrally formed composition with fishing rod 1；Limiting unit 2, connect with one end of fishing rod 1
Connect, during down-hole fishing device tripping in oil well, limiting unit 2 is used to make the center line of fishing rod 1 and the center line of oil well
Overlap.
Down-hole fishing device provided by the utility model, it is provided with fishing rod 1 thereon and multiple is used to hook well steel
The recovery hook 11 of silk, simultaneously as the oil well of high-content wax generally starts wax deposition from the inwall of pit shaft to the center of pit shaft, therefore,
The middle part of pit shaft is generally without wax, and by connecting limiting unit 2 in one end of fishing rod, the limiting unit 2 can fill in the underground fishing
During putting tripping in oil well, the center line of fishing rod 1 and oil well is set in the state to overlap, that is, to remain and beat all the time
The middle part that bar 1 is located at oil well is dragged for, because the middle part of pit shaft is generally without wax, therefore, the recovery hook 11 in the middle part of pit shaft is not all the time
It can be pasted, smoothly can hook the steel wire for falling well by wax, so as to improve the success rate for salvaging well steel wire.
Referring to Fig. 1, length direction arrangement of multiple recovery hooks 11 along fishing rod 1.
Because the wire shape for falling into shaft bottom is random, therefore, beaten by the way that multiple recovery hooks 11 are anisotropically arranged in
Drag on the outer wall of bar 1, be favorably improved the probability that recovery hook 11 hooks steel wire, so as to further improve the down-hole fishing device
Fishing success ratio to falling well steel wire, mitigate the workload that worker repeats to salvage.
In order to prevent during steel wire is salvaged, steel wire is beaten unbalance stress or due to rocking from the underground
Drag for and fall to shaft bottom on device again, further to improve the down-hole fishing device to falling the fishing success ratio of well steel wire, referring to
Fig. 1, each recovery hook 11 have connection end 112 and free end 111, and connection end 112 is connected with the outer wall of fishing rod 1, Ke Yitong
Cross welding or integrally formed mode is attached, free end 111 is arranged towards the limiting unit 2, makes each recovery hook 11
It is in tilted layout on fishing rod 1.By the way that recovery hook 11 is in tilted layout on fishing rod 1, and its free end 111 is towards limiting unit
2。
Realizing after the down-hole fishing device tripping in oil well, steel wire can be firmly hooked on recovery hook 11, so as to
Successfully salvaged by the down-hole fishing device to outside well, without falling into shaft bottom again, further improve the underground fishing
Device also mitigates the workload that worker repeats to salvage to falling the fishing success ratio of well steel wire.
Steel wire is hooked for the ease of recovery hook 11, referring to Fig. 1, the free end 111 of each recovery hook 11 is designed as taper.
Free end 111 is designed tapered, is advantageous to more easily be hooked when the steel wire in well touches free end 111
Firmly.
Alternatively, the structure of limiting unit 2 has a variety of, as long as the process in the down-hole fishing device tripping in oil well can be realized
In, make fishing rod 1 center line and oil well center line overlap purpose, such as limiting unit 2 can use external diameter with oil
The column structure that well internal diameter is adapted, or, using the structure of multiple connecting rod interconnections, and multiple connecting rod outermost ends
The contour shape and size that line is formed are adapted with the inwall of oil well.
Fig. 2 is the structural representation for the down-hole fishing device that the utility model embodiment two provides, as shown in Fig. 2 this reality
With the down-hole fishing device of new embodiment on the basis of embodiment illustrated in fig. 1, the limiting unit 2 in the present embodiment includes both ends
Connecting cylinder 21 and the connector 22 for being arranged at the one end of connecting cylinder 21, the both ends open connection of connecting cylinder 21, connection with opening
21 external diameter of cylinder is adapted with the internal diameter of oil well；One end of fishing rod 1 extend into connecting cylinder 21 from the one end open of connecting cylinder 21
It is interior and be connected with connector 22, such as one end of the fishing rod 1 is threadedly coupled with connector 22, the other end of fishing rod 1 appears
In connecting cylinder 21.
The external diameter of connecting cylinder 21 of limiting unit 2 is adapted with the internal diameter of oil well, ensure that limiting unit 2 to the position of fishing rod 1
Restriction effect, meanwhile, connecting cylinder 21 be both ends open hollow-core construction, such structure design, it is possible to achieve when the underground
During fishing tool tripping in pit shaft, wax and liquid on shaft in wall can one end through connecting cylinder 21 enter and through connecting cylinder
The purpose of 21 another end opening discharge, causes the down-hole fishing device suitable so as to prevent limiting unit 2 to be blocked by wax
The phenomenon of the tripping in pit shaft of profit occurs, and further increases the down-hole fishing device to falling the fishing success ratio of well steel wire.
Fig. 3 is the structural representation for the down-hole fishing device that the utility model embodiment three provides, as shown in figure 3, this reality
The down-hole fishing device of example is applied on the basis of embodiment illustrated in fig. 2, the side wall of the connecting cylinder 21 in the utility model embodiment
On offer at least one first guiding gutter 12, at least one second guiding gutter 221, Ke Yishi is offered in the side wall of connector
Now during the underground fishing tool tripping in pit shaft, wax and liquid on shaft in wall can also the mesh through guiding gutter discharge
, further prevent limiting unit 2 to be blocked by wax and pasted by wax and cause the down-hole fishing device can not smoothly tripping in pit shaft
Phenomenon occur, further increase the down-hole fishing device to falling the fishing success ratio of well steel wire.
Alternatively, limiting unit 2 uses jack rabbit structure, and the size of the jack rabbit is adapted with the size of oil pipe, the latus rectum
Rule are with cylinder and the joint being connected with cylinder one end.The cylinder of jack rabbit is as foregoing connecting cylinder 21, the joint of jack rabbit
As foregoing connector 22.
Alternatively, when limiting unit is made of jack rabbit, can be slotted in the end of weight linear meter 3, and on the cell wall
The internal thread that the threaded external screw thread with corresponding jack rabbit joint is adapted so that weight linear meter 3 can be by internal thread with leading to
Footpath rule joint is threadedly coupled, and disassembly and installation is quite convenient to.
That is, the limiting unit 2 of the down-hole fishing device can use the jack rabbit being adapted with tubing size to be made,
During the down-hole fishing device is salvaged to falling well steel wire, through hole positioned opposite on jack rabbit cylinder can be passed through
To entering wax and the outer row of liquid progress in jack rabbit, at the same time it can also detect the latus rectum size of well wellbore by jack rabbit,
And pit shaft is dredged, it is simple and reasonable, it is easy to operate.
Fig. 4 is the structural representation for the down-hole fishing device that the utility model embodiment four provides, as shown in figure 4, in order to
The down-hole fishing device is smoothly through pit shaft and be lowered into oil well shaft bottom, the steel wire in shaft bottom is salvaged, the underground
Fishing device also includes counterweight, and the counterweight is connected with connector 22.
By the setting of counterweight, add the weight of the down-hole fishing device so that its can more successfully under
Salvage is carried out to shaft bottom.
Alternatively, the counterweight can include weight linear meter 3, and one end of the weight linear meter 3 is connected with connector 22, such as this is matched somebody with somebody
One end of weight bar 3 is threadedly coupled with connector 22；Moreover, the center line of the weight linear meter 3 overlaps with the center line of fishing rod 1, make
The center of gravity of down-hole fishing device is kept on centerline, so that the down-hole fishing device being capable of more successfully tripping in oil well well
Bottom.
In order to further enable the down-hole fishing device successfully tripping in oil well shaft bottom, steel wire is salvaged, referring to
Fig. 1-Fig. 4, the other end of fishing rod 1 is designed as taper.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of down-hole fishing device, the steel wire of oil well is fallen into for salvaging, it is characterised in that including：
Fishing rod, multiple recovery hooks are provided with the outer wall of the fishing rod, each recovery hook is used to hook the steel wire；
Limiting unit, it is connected with one end of the fishing rod, it is described during oil well described in the down-hole fishing device tripping in
Limiting unit is used to make the center line of the fishing rod overlap with the center line of the oil well.
2. down-hole fishing device according to claim 1, it is characterised in that
Length direction arrangement of multiple recovery hooks along the fishing rod.
3. down-hole fishing device according to claim 2, it is characterised in that multiple recovery hooks are anisotropically arranged in
The outer wall of the fishing rod.
4. down-hole fishing device according to any one of claim 1 to 3, it is characterised in that
Each recovery hook has connection end and free end, and the connection end is connected with the outer wall of the fishing rod, it is described oneself
Arranged by holding towards the limiting unit, each recovery hook is in tilted layout on the fishing rod.
5. down-hole fishing device according to claim 4, it is characterised in that
The free end of each recovery hook is tapered.
6. down-hole fishing device according to any one of claim 1 to 3, it is characterised in that
The limiting unit, which includes both ends, to be had the connecting cylinder of opening and is arranged at the hollow connector of described connecting cylinder one end, described
The both ends open connection of connecting cylinder, the external diameter of the connecting cylinder are adapted with the internal diameter of the oil well；
One end of the fishing rod is stretched into the connecting cylinder from the one end open of the connecting cylinder and is connected with the connector,
The other end of the fishing rod is revealed in the connecting cylinder.
7. down-hole fishing device according to claim 6, it is characterised in that offered at least in the side wall of the connecting cylinder
One the first guiding gutter, at least one second guiding gutter is offered in the side wall of the connector.
8. down-hole fishing device according to any one of claim 1 to 3, it is characterised in that also include：
Counterweight, the counterweight are connected with one end of relatively described connecting cylinder in the connector.
9. down-hole fishing device according to claim 8, it is characterised in that
The counterweight includes weight linear meter, and one end of the weight linear meter and one end of relatively described connecting cylinder in the connector connect
Connect, the center line of the weight linear meter overlaps with the center line of the fishing rod.
10. according to the down-hole fishing device any one of claim 1-3, it is characterised in that
One end relative to the limiting unit of the fishing rod is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720533476.0U CN206830106U (en) | 2017-05-15 | 2017-05-15 | Down-hole fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720533476.0U CN206830106U (en) | 2017-05-15 | 2017-05-15 | Down-hole fishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830106U true CN206830106U (en) | 2018-01-02 |
Family
ID=60771549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720533476.0U Active CN206830106U (en) | 2017-05-15 | 2017-05-15 | Down-hole fishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206830106U (en) |
-
2017
- 2017-05-15 CN CN201720533476.0U patent/CN206830106U/en active Active
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