CN208950520U - A kind of pony packer fishing tool - Google Patents
A kind of pony packer fishing tool Download PDFInfo
- Publication number
- CN208950520U CN208950520U CN201821751558.3U CN201821751558U CN208950520U CN 208950520 U CN208950520 U CN 208950520U CN 201821751558 U CN201821751558 U CN 201821751558U CN 208950520 U CN208950520 U CN 208950520U
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- CN
- China
- Prior art keywords
- fishing
- mandrel
- cylinder
- tool
- packer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Disclosed by the utility model is a kind of pony packer fishing tool, can be salvaged to the packer in petroleum industry small casing pipe well and with the tubing string that packer is hung.This fishing tool includes top connection and fishing socket, the internal screw thread of top connection lower part is connect with mandrel, the petaloid cylinder of axial slot segmentation is provided between the top and mandrel of fishing socket by guide pin connection, lower part, the outer circle of the petaloid cylinder, which is equipped with, salvages screw thread, and the centre bore of mandrel and the centre bore of top connection penetrate through.The centre bore of this tool is exactly to rinse hydrophthalmia, and top connection has joint action, has variable diameter effect again, simultaneously because there is enough wall thickness also to have centralizing function.The utility model improves its tensile strength and fatigue resistance, movable fishing string repeated multiple times can be lifted from the top and puted down during salvaging unfreezing, without influencing its tool performance.
Description
Technical field
The utility model relates to the fishing tool of petroleum industry small casing pipe well downhole packer, especially a kind of minor diameter envelope
Every device fishing tool, can be salvaged to the packer in small casing pipe well and with the tubing string that packer is hung.
Background technique
For loose sand oil accumulation, initial stage operation is essentially five cun of half-covering tubes and was developed due to the development and production of many years
Shaking out in journey is corroded and the factors such as high-handed measures influence, and casing damage phenomenon is increasingly sharpened.
The tripping in small casing in above-mentioned casing failure well, producing these wells again is a kind of effective hand for administering casing damaged well
Section, using also just more and more.Relative to normal casing, small casing pipe well sand control is presently mainly to use chemical sand control, is easily occurred
Situations such as formation contaminant, not perfect blocking and perforation.Meanwhile as exploitation enters later period, aqueous, the fluid producing intensity of small casing pipe well
Step up, chemical sand control is increasingly difficult to meet the requirements.
Therefore the demand for hanging sand screen sand control using inexpensive small casing in small casing pipe well is more more and more intense, however small set
The later period of pipe hanger sand screen sand control is difficult to salvage, and becomes a key factor for influencing to implement in small casing pipe well, main
Influencing factor is the domestic Special fishing tool for never having pony packer.
The fishing tool of existing small casing pipe well down-hole string is female thread in being shorted using oil pipe and packer to buckle fisher,
The intensity that oil pipe is shorted is lower, pulling force demand when not being able to satisfy deblocking releasing, while easily occurring screw thread damage during make-up, and one
Denier silk is bad, can not will thoroughly salvage, therefore this mode needs to improve there are biggish security risk and construction risk.
Summary of the invention
The purpose of the utility model is to provide a kind of pony packer fishing tools, can be to current small casing pipe well downhole tubular
It packer in column and is salvaged with the tubing string that packer is hung, so that it is more adapted to the operating condition of small casing pipe well, improve salvaging
Success rate lays the foundation to hang sand screen sand control in small casing pipe well, changes the sand control status of current small casing pipe well, improves sand control effect
Fruit reduces production cost.
The technical solution of the utility model is: a kind of pony packer fishing tool includes top connection and salvaging
Cylinder, the internal screw thread of top connection lower part are connect with mandrel, are by guide pin connection, lower part between the top and mandrel of fishing socket
Petaloid cylinder equipped with axial slot segmentation, the outer circle of the petaloid cylinder, which is equipped with, salvages screw thread, the centre bore of mandrel and top connection
Centre bore perforation.
Compared with prior art, the significant using effect of the utility model is: the centre bore of this tool is exactly to rinse hydrophthalmia,
Top connection has joint action, has variable diameter effect again, simultaneously because there is enough wall thickness also to have centralizing function.This tool is set
Meter size can satisfy the salvaging demand of pony packer and pony packer suspension tubing string, while spread outside formed punch
Hard alloy has been welded, has also had the function of milling, when this tool can not rinse the fish inner cavity of blocking well by rinsing hydrophthalmia,
Mill can be rushed, achievees the effect that this tool introducing fish chamber.Top connection and mandrel due to this tool, which have enough wall thickness again, to be made
It is made of alloy modulation steel, improves its tensile strength and fatigue resistance, it can be repeated multiple times during salvaging unfreezing
Movable fishing string is lifted from the top and puted down, without influencing its tool performance.
The fishing socket lower part of the utility model is petaloid cylinder, outside equipped with salvaging screw thread, just like slips, into fish
After chamber, fishing success ratio can be effectively improved and be also equipped with guide pin on fishing socket top simultaneously, can prevent fishing socket and mandrel from existing
Failure is salvaged caused by rotating during salvaging.The utility model high temperature resistant, corrosion-resistant, intensity is big, connects between component
Connect secured not easily to fall off, reliable performance.By laboratory test, its salvaging works well, and has good application prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing, not limits the protection scope of the utility model.It is as described below to be only
The preferred embodiment of the utility model, other use the equivalence changes of the utility model, should belong to the protection of the utility model
Range.
Referring to Fig. 1, a kind of pony packer fishing tool includes top connection 1 and fishing socket 3,1 lower part of top connection it is interior
Screw thread is connect with mandrel 4, is provided with axial segmentation by the connection of guide pin 2, lower part between the top and mandrel 4 of fishing socket 3
The petaloid cylinder of slot, the outer circle of the petaloid cylinder, which is equipped with, salvages screw thread, and the centre bore of mandrel 4 and the centre bore of top connection 1 penetrate through.
For the guide pin 2 from the cotter slot of the external insertion mandrel 4 of fishing socket 3, which is located at the upper of mandrel 4
In portion's outer wall, be axial vertical slot.
The lower part of the mandrel 4 is formed punch 5, which is taper clava, lower end equipped with chamfering, in the chamfering
Weld hard alloy in upper berth.The top connection 1 of this fishing tool and the centre bore perforation of mandrel 4, use as hydrophthalmia is rinsed, in mandrel
Outside the formed punch 5 of 4 lower ends paving weldering hard alloy, when this tool flushing hydrophthalmia can not to salvage junk centre bore rinse well or
When having hard material in fish chamber, can pressurize to it punching mill, achieve the effect that this tool introducing fish chamber.
The guide pin 2 at least provided with two, guide pin 2 can with fishing socket 3 spreading and be contracted in pin
It is up and down in slot.
The outer diameter of 3 lower cylinder of fishing socket is greater than the outer diameter of top cylinder, the inner circle of lower cylinder is taper inner circle
It being matched with the outer circle of formed punch 5, the axial slot segmentation in lower cylinder makes cylinder at least be divided into three valves at least provided with three,
It can be pintongs, five valves etc..
The deblocking salvaging head thread company for salvaging screw thread and pony packer on the 3 lower part petaloid cylinder of fishing socket
It connects, it is safe and reliable to change mode of the packer using oil pipe short circuit to buckle fisher, working method in existing small casing pipe well well.
The outer diameter of top connection 1 is less than the internal diameter of small casing pipe well casing, the aperture of centre bore is set between 23mm-30mm,
Junk top of fish can be implemented effectively to rinse, since the aperture of centre bore is small, top connection 1 has enough wall thickness, plays
Variable diameter and centralizing function, righting effect is solid and reliable, and stability is strong, is not susceptible to bit freezing.
This fishing tool modulates steel manufacture using alloy, improves tensile strength and fatigue resistance, solves salvaging
Movable fishing string repeated multiple times can be lifted from the top and puted down during card, without influencing its tool performance.
The embodiment described above is only exemplary embodiments, but the utility model is not limited only to these embodiments, ability
The technical staff in domain can make modification under the spirit and enlightenment without departing from the utility model.Aspect disclosed herein may
In the presence of many changes, combination and modification, and all in the scope of the utility model, therefore, protection scope is not limited only to above
Explanation.
Claims (7)
1. a kind of pony packer fishing tool, including top connection and fishing socket, characterized in that the internal screw thread of top connection lower part
It is connect with mandrel, is provided with the petaloid of axial slot segmentation between the top and mandrel of fishing socket by guide pin connection, lower part
Cylinder, the outer circle of the petaloid cylinder, which is equipped with, salvages screw thread, and the centre bore of mandrel and the centre bore of top connection penetrate through.
2. a kind of pony packer fishing tool as described in claim 1, characterized in that the guide pin is from fishing socket
In the cotter slot of outside insertion mandrel, which is located in the external wall of upper portion of mandrel, is axial vertical slot.
3. a kind of pony packer fishing tool as claimed in claim 1 or 2, characterized in that the lower part of the mandrel is punching
Head, the formed punch are taper clava, lower end equipped with chamfering, weld hard alloy on the chamfering upper berth.
4. a kind of pony packer fishing tool as claimed in claim 2, characterized in that the guide pin is at least provided with two
It is a.
5. a kind of pony packer fishing tool as claimed in claim 3, characterized in that outside the fishing socket lower cylinder
Diameter is greater than the outer diameter of top cylinder, the inner circle of lower cylinder is that taper inner circle is matched with the outer circle of formed punch, in lower cylinder
Axial slot segmentation is at least provided with three.
6. a kind of pony packer fishing tool as claimed in claim 5, characterized in that the fishing socket lower part petaloid cylinder
On salvaging screw thread be threadedly coupled with the deblocking fishing head of pony packer.
7. a kind of pony packer fishing tool as claimed in claim 6, characterized in that the outer diameter of the top connection is less than small
The internal diameter of casing casing, the aperture of centre bore are set between 23mm-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821751558.3U CN208950520U (en) | 2018-10-28 | 2018-10-28 | A kind of pony packer fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821751558.3U CN208950520U (en) | 2018-10-28 | 2018-10-28 | A kind of pony packer fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950520U true CN208950520U (en) | 2019-06-07 |
Family
ID=66743180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821751558.3U Expired - Fee Related CN208950520U (en) | 2018-10-28 | 2018-10-28 | A kind of pony packer fishing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208950520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863790A (en) * | 2019-11-06 | 2020-03-06 | 大庆油田有限责任公司 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
-
2018
- 2018-10-28 CN CN201821751558.3U patent/CN208950520U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863790A (en) * | 2019-11-06 | 2020-03-06 | 大庆油田有限责任公司 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
| CN110863790B (en) * | 2019-11-06 | 2022-03-01 | 大庆油田有限责任公司 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190607 Termination date: 20191028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |