CN207960555U - A kind of fishing sleeve milling integrated apparatus - Google Patents
A kind of fishing sleeve milling integrated apparatus Download PDFInfo
- Publication number
- CN207960555U CN207960555U CN201820275205.4U CN201820275205U CN207960555U CN 207960555 U CN207960555 U CN 207960555U CN 201820275205 U CN201820275205 U CN 201820275205U CN 207960555 U CN207960555 U CN 207960555U
- Authority
- CN
- China
- Prior art keywords
- casing section
- bearing torque
- section mill
- fishing
- extension bar
- 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
Links
Abstract
The utility model is a kind of fishing sleeve milling integrated apparatus, can be salvaged in construction is salvaged in underground work, cover the permanent packer of metal that milling is fixed in the objects such as the packer in pit shaft, such as fishing sleeve milling closure well.The present apparatus includes fishing tool, fixed back-off retaining set, lower part and the fishing tool of giving up in top for salvaging extension bar connects, the lower end of casing section mill lower body is equipped with milling sword, the outside of the present apparatus is connect with change buckle joint, casing section mill upper body, bearing torque connector, change buckle joint and casing section mill lower body successively from top to bottom by top connection, salvages the inside that extension bar is connected to the present apparatus by bearing torque connector.The utility model will cover milling and salvage twice flow chart be combined together, only next time working string can be realized as originally will under working string could be realized twice flow chart, significantly improve operating efficiency, reduce operating cost.The utility model has good using effect and application value.
Description
Technical field
The utility model relates to the salvaging packaged milling tool of petroleum well workover operation, especially a kind of fishing sleeve milling integration
Device salvaging, set milling can be fixed on the objects such as the packer in pit shaft, such as fishing sleeve milling envelope in construction is salvaged in underground work
The permanent packer of metal in stifled well.
Background technology
In petroleum well workover operation, when production needs or needs again to develop and use a certain block again, often
Again operation is carried out to the Oil, Water, Gas well after some long-term closure, and the well that these are blocked is general more than Oil, Water, Gas layer
It can be shunt in a well using a kind of permanent packer of metal.Therefore, this well is carried out again before operation, must just bore first remove or
Person salvages the permanent packer of this metal, could carry out work measure processing to the Oil, Water, Gas layer of lower part, obtain satisfied
Grease air-flow.
When the permanent packer of this metal of salvaging, fishing tool used at present is usually sliding block trip spear class tool.Fishing
After obtaining permanent packer, then activity unfreezing is carried out, releases lead ring or the sealing of slips dentition formula that packer is stuck in internal surface of sleeve pipe
Ring could be proposed pit shaft after unfreezing success.But due to the use of the permanent packer of this metal time mistake in well
It is long, when salvaging, usually there is the unsuccessful phenomenon of unfreezing, after fishing tool can only be given up, acts working string, be changed to
After junk mill, then the permanent packer of metal is fallen in G.I.H milling.The above method is just used in the case that unavoidable, because
This method can cause to damage to casing, can substantially reduce the service life of casing.Therefore, workover treatment scene is badly in need of a kind of
The dedicated specific purpose tool for salvaging this permanent packer of metal.
Invention content
The utility model is to provide a kind of fishing sleeve milling integrated apparatus, solves the permanent packer or similar of shut-in well metal
The junk that is fixed in pit shaft is difficult to salvage and salvage the undesirable problem of timeliness, avoids the destruction caused by casing, improves
Fishing timeliness and fishing success ratio reduce production cost.
To solve the above problems, the utility model is realized in this way：A kind of fishing sleeve milling integrated apparatus includes salvaging
Tool, fixed back-off retaining set, lower part and the fishing tool of giving up in top for salvaging extension bar connect, the lower end of casing section mill lower body
Equipped with milling sword, the outside of the present apparatus by top connection from top to bottom successively with become buckle joint, casing section mill upper body, bearing torque connector,
Become buckle joint to connect with casing section mill lower body, salvages the inside that extension bar is connected to the present apparatus by bearing torque connector.
The notable using effect of the utility model is：
When salvaging permanent packer or the similar junk being fixed in pit shaft using the present apparatus, lengthened first using salvaging
The fishing tool of bar bottom installation carries out plug-in type salvaging to permanent packer.
When salvaging that successfully upper lifting pipe post is unable to unfreezing, the present apparatus is hit under movable tubing string and salvages extension bar until cutting and holds
Shear pin between twist joint.After pin is cut, salvages extension bar and will be shifted up under the active force of tubing string downlink, and the present apparatus
The casing section mill that outside is formed opposite can then move down, until the milling of casing section mill lower body to permanent packer, is rotated further by tubing string use at this time
Casing section mill lower body milling, after the completion of milling, can upper lifting pipe post so that the casing section mill formed outside the present apparatus is moved up, allow and salvage extension bar
The back-off retaining set of giving up on top forms an entirety with bearing torque connector grafting.If milling success, upper lifting pipe post pass through salvaging
The fishing tool of extension bar lower part connection is salvaged, and after salvaging successfully, acts well head.
If salvaging at this time unsuccessful, it can be given up operation by back-off, extension bar will be salvaged and stayed in underground.When back-off,
Back-off retaining set of giving up can be cut safety pin, make to be plugged on giving up down in bearing torque connector under the active force that tubing string rotates
Button retaining set is separated with extension bar is salvaged, and the present apparatus is proposed that well head, underground then leave behind salvaging extension bar by upper lifting pipe post, then real
Apply other technologies treatment measures.
The utility model will cover milling and salvaging, and twice flow chart is combined together, only next time working string can be real
Now originally will under working string could be realized twice flow chart, significantly improve operating efficiency, reduce operating cost.When
When salvaging unsuccessful, it can also be achieved and give up, and there is safety.Therefore, the utility model has good using effect and answers
With value, and significant economic benefit and social benefit can be generated.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram given up in the utility model and be buckled to retaining set.
Fig. 3 is the structural schematic diagram of bearing torque connector in the utility model.
Specific implementation mode
The utility model is described in detail below in conjunction with attached drawing, not limits the scope of protection of the utility model, it is all to use this practicality
The improvement that novel mentality of designing obtains belongs to the protection category of the utility model.
Referring to Fig. 1 to Fig. 3, a kind of fishing sleeve milling integrated apparatus includes fishing tool, and the top for salvaging extension bar 6 is fixed
It give up back-off retaining set 4, lower part and fishing tool to connect, the lower end of casing section mill lower body 9 is equipped with milling sword, the outside of the present apparatus
By top connection 1 from top to bottom successively with become buckle joint 2, casing section mill upper body 3, bearing torque connector 7, become under buckle joint 2 and casing section mill
Body 9 connects, and salvages extension bar 6 and is connected to the inside of the present apparatus by bearing torque connector 7, the external casing section mill, interior of being formed of the present apparatus
Portion's connection is fishing tool, and being formed can salvage, can also cover the structure type of milling.
The salvaging extension bar 6 is connect with bearing torque connector 7 by shear pin 8, and bearing torque connector 7 is cylindrical body, outside cylinder
Screw thread is equipped with below the limited step at circle middle part to connect with change buckle joint 2 and casing section mill lower body 9 successively；The top of bearing torque connector 7
Cylinder is equipped with the grafting pawl with perforation at the top of cylinder.
The top of the bearing torque connector 7 welds together with the welding hole in casing section mill upper body 3；7 grafting pawl of bearing torque connector
It is retaining set accommodating chamber that top, which is wedge structure, the inner cavity below grafting pawl,.When giving up, back-off retaining set 4 is inserted with bearing torque connector 7
After connecing, retaining set accommodating chamber can guarantee its outer diameter be consistent with the outer diameter of bearing torque connector 7, the also intensity of its certifiable grafting simultaneously；
The grafting pawl top of bearing torque connector 7 is wedge structure, in the inserting groove for facilitating the introduction of back-off retaining set 4 of giving up.
The ontology outer circle for giving up back-off retaining set 4 is equipped with 7 grafting of inserting groove, the quantity of the inserting groove and bearing torque connector
The quantity of pawl is equal, and the riser structure formed between inserting groove and inserting groove is consistent with the structure of 7 grafting pawl of bearing torque connector, can make
It coincide well between the grafting pawl of bearing torque connector 7 and the inserting groove for back-off retaining set 4 of giving up；Back-off retaining of giving up covers 4 and beats
It is connected through a screw thread between fishing extension bar 6 and pin safe to use 5 is fixed.
The lower end for salvaging extension bar 6 is longer than the lower end of casing section mill lower body 9, allows the salvaging work for salvaging extension bar 6 lower part
Have linkage section from the lower end of casing section mill lower body 9 to expose, be connected with fishing tool when convenient for assembly.
Under the connection screw thread and casing section mill upper body 3 and casing section mill salvaged between extension bar 6 and back-off retaining set 4 of giving up
Connection screw thread on body 9 left-hand thread each other, can make salvaging extension bar 6 be given up in underground.
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 without departing from the spirit of the utility model and enlightenment.Aspect disclosed herein may
In the presence of many changes, combination and modification, and all in the scope of the utility model, therefore, protection domain is not limited only to above
Explanation.
Claims (6)
1. a kind of fishing sleeve milling integrated apparatus, including fishing tool, characterized in that fixed give up on the top for salvaging extension bar
It is buckled to retaining set, lower part and fishing tool to connect, the lower end of casing section mill lower body is equipped with milling sword, and the outside of the present apparatus is by above connecing
Head is connect with change buckle joint, casing section mill upper body, bearing torque connector, change buckle joint and casing section mill lower body successively from top to bottom, is salvaged and is added
Stock is connected to the inside of the present apparatus by bearing torque connector.
2. a kind of fishing sleeve milling integrated apparatus as described in claim 1, characterized in that the salvaging extension bar connects with bearing torque
Head is connected by shear pin, bearing torque connector is cylindrical body, screw thread is equipped with below the limited step in the middle part of cylinder outer circle successively with
Become buckle joint to connect with casing section mill lower body；The top cylinder of bearing torque connector is equipped with the grafting pawl with perforation at the top of cylinder.
3. a kind of fishing sleeve milling integrated apparatus as claimed in claim 2, characterized in that the top of the bearing torque connector and set
Welding hole in milling cylinder upper body welds together；The top of bearing torque connector grafting pawl is wedge structure, the inner cavity below grafting pawl
Retaining covers accommodating chamber.
4. a kind of fishing sleeve milling integrated apparatus as claimed in claim 3, characterized in that the sheet of the back-off retaining set of giving up
External circle is equal with the quantity of bearing torque connector grafting pawl equipped with inserting groove, the quantity of the inserting groove, between inserting groove and inserting groove
The riser structure of formation is consistent with the structure of bearing torque connector grafting pawl.
5. a kind of fishing sleeve milling integrated apparatus as described in claim 1 or 4, characterized in that under the salvaging extension bar
End is longer than the lower end of casing section mill lower body, the fishing tool linkage section for salvaging extension bar lower part is allowed to reveal from the lower end of casing section mill lower body
Go out.
6. a kind of fishing sleeve milling integrated apparatus as claimed in claim 5, characterized in that the salvagings extension bar with give up down
Detain the connection screw thread between retaining set and the connection screw thread on casing section mill upper body and casing section mill lower body left-hand thread each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275205.4U CN207960555U (en) | 2018-02-27 | 2018-02-27 | A kind of fishing sleeve milling integrated apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275205.4U CN207960555U (en) | 2018-02-27 | 2018-02-27 | A kind of fishing sleeve milling integrated apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207960555U true CN207960555U (en) | 2018-10-12 |
Family
ID=63740015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820275205.4U Expired - Fee Related CN207960555U (en) | 2018-02-27 | 2018-02-27 | A kind of fishing sleeve milling integrated apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207960555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458151A (en) * | 2018-12-19 | 2019-03-12 | 贵州高峰石油机械股份有限公司 | A kind of device for being completed at the same time sub-sea drilled wells cutting and salvaging with capping operation |
| CN116146135A (en) * | 2023-04-23 | 2023-05-23 | 中石化西南石油工程有限公司 | A cover and drag for integrated device that is used for constant pressure trap plugging tool fish of well drilling |
-
2018
- 2018-02-27 CN CN201820275205.4U patent/CN207960555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458151A (en) * | 2018-12-19 | 2019-03-12 | 贵州高峰石油机械股份有限公司 | A kind of device for being completed at the same time sub-sea drilled wells cutting and salvaging with capping operation |
| CN109458151B (en) * | 2018-12-19 | 2024-04-09 | 贵州高峰石油机械股份有限公司 | Device for simultaneously completing submarine oil well cutting, fishing and well sealing operation |
| CN116146135A (en) * | 2023-04-23 | 2023-05-23 | 中石化西南石油工程有限公司 | A cover and drag for integrated device that is used for constant pressure trap plugging tool fish of well drilling |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20210227 |