CN202745783U - Drilling and milling type spiral external hook for salvaging clustered sucker rod - Google Patents
Drilling and milling type spiral external hook for salvaging clustered sucker rod Download PDFInfo
- Publication number
- CN202745783U CN202745783U CN 201220395439 CN201220395439U CN202745783U CN 202745783 U CN202745783 U CN 202745783U CN 201220395439 CN201220395439 CN 201220395439 CN 201220395439 U CN201220395439 U CN 201220395439U CN 202745783 U CN202745783 U CN 202745783U
- Authority
- CN
- China
- Prior art keywords
- spiral
- salvaging
- sucker rod
- hook
- agglomerating
- 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 discloses a drilling and milling type spiral external hook for salvaging a clustered sucker rod. The drilling and milling type spiral external hook comprises a spiral external hook body, an upper joint and a hook bill, wherein the upper joint is arranged at the upper end of the spiral external hook body; the hook bill is arranged at the lower end of the spiral external hook body and is like a die tape; and a spiral salvaging disk is welded on the spiral external hook body. According to the drilling and milling type spiral external hook disclosed by the utility model, the difficult problem in the prior art is solved. According to the drilling and milling type spiral external hook, the salvaging tool penetrates through an inner chamber of the clustered sucker rod for thread making by using a pressurizing rotary expanding salvaging channel; and meanwhile, the outside spiral salvaging disk is hung with the sucker rod for salvaging. The drilling and milling type spiral external hook is a special tool for salvaging the clustered sucker rod in a casing pipe.
Description
Technical field
The utility model relates to crooked agglomerating sucker-rod fishing tool, and the agglomerating sucker rod of specifically a kind of bending is salvaged with boring and milled the outer hook of formula spiral.
Background technology
Along with the carrying out of oil field development, oil recovery well casing bar fatigue and corrosion condition are day by day serious, add the at present appearance of large gradient development well, have caused side-abrasion of rod string, oil pipe and the sucker rod well accident frequent occurrence that falls.The oil pipe and the sucker rod that fall behind the well cause bending under the effect of acceleration of gravity, bring very large difficulty to underground work, careless slightlyly will cause the bending of sucker rod top of fish agglomerating.Greatly increase the difficulty of well workover salvage, had a strong impact on the crude oil production in oil field.Improve crooked agglomerating sucker rod fishing success ratio and become the key of dealing with problems, this just requires to have perfect fishing process, supporting fishing tool and rational Refloatation method.Therefore, the crooked agglomerating sucker rod of succeeding in developing for salvaging crooked agglomerating sucker rod is salvaged with boring and is milled the outer hook of formula spiral, salvages in the construction at the scene and has obtained preferably effect.
In the salvaging construction of oil well, often run into the crooked agglomerating sucker rod of top of fish.Because the fishing tool of existing moulding is improper, processes such trouble of lost tool in hole long construction period, difficulty is large, even cause new down-hole accident.For solving such trouble of lost tool in hole, at the scene in the construction according to the features of shape of this type of junk, development and design goes out to have the more targetedly crooked agglomerating sucker rod salvaging of fishing tool to mill the outer hook of formula spiral with boring, it can the success this type of junk is salvaged, provide new instrument and thinking for salvaging such junk.
For a long time, the fishing process for the agglomerating sucker rod of bending is:
Can (1) lower movable outer hook be salvaged: pass through according to salvaging the agglomerating centre of situation analysis rod sag, by then salvaging;
(2) descend die nipple to add and be welded outer hook salvaging: movable outer hook can't pass through, and then descends die nipple to add and is welded outer hook salvaging;
(3) trap and mill jacket casing and mill salvaging, select the milling method to process during void in whole.And sucker rod belongs to the very strong material of crisp plasticity, and at present cover mills and salvages used cover milling head that cover is milled such junk effect is bad, very easily causes cover to mill lock of tool drilling in the salvaging process simultaneously, and risk is higher.
Salvage processing if adopt cover to mill, must have the disconnected broken sucker rod well that again falls and be deposited on the top of fish of bottom, the difficulty of salvaging the bottom junk is increased, construction period prolongs greatly, even oil well is scrapped, and causes very large economic loss.
The pluses and minuses of Conventional Fishing Tools:
(1) a curved fish sucker rod socket: this instrument be fit to be salvaged the bent rod body, but and the sucker rod of not appearing crooked for top of fish is without any effect.
(2) die nipple: die nipple can enter sucker rod round inner chamber although salvage screw thread under the pressure of the drill and torsional interaction, this instrument belongs to thread making and salvages the class instrument, and only applicable salvaging has the fish of endoporus, can't salvage bent rod.
(3) movable outer hook: although the bottom of movable outer hook is taper, owing to there is not thread making extruding position, can't passes bulk sucker rod inner chamber, thereby can't realize salvaging.And it is less to lift power on the movable outer hook, can't satisfy the requirement of salvaging sucker rod.
(4) spiral outer hook: the flight of spiral outer hook has downward guiding corner cut, can cut smoothly under the revolving force effect and tangle junk, and it is apparent in view to salvage rope class junk effect, but for the strong junk of this class rigidity of sucker rod to no effect.The outer hook flight size of simultaneously ready-made spiral is large (Φ 105mm), can not pass agglomerating sucker rod inner chamber, can't salvage.
(5) cover milling head female coupling tap: salvage agglomerating sucker rod and have certain effect, easily the sucker rod cover is broken into multistage but mill in the process at cover, it is loose that sucker rod many places, bottom are fallen, thereby cause accident complicated.
In view of this, for the problems referred to above, propose a kind of crooked agglomerating sucker rod reasonable in design and that effectively improve above-mentioned disappearance and salvage with boring and mill formula spiral hook outward.
The utility model content
The purpose of this utility model is to provide crooked agglomerating sucker rod salvaging to mill the outer hook of formula spiral with boring, and has solved the problem that prior art exists.This instrument utilizes the pressurization rotation to dilate to salvage passage to make fishing tool pass crooked agglomerating sucker rod inner chamber and carries out thread making, utilize simultaneously the spiral salvaging dish in the outside to tangle sucker rod and realize salvaging.It is the special tool that is used for specially in sleeve pipe, salvaging crooked agglomerating sucker rod.
In order to reach above-mentioned purpose, the utility model provides following technical scheme: crooked agglomerating sucker rod is salvaged with boring and is milled the outer hook of formula spiral, comprise the outer hook hook body of spiral and be separately positioned on the hook hook is held outside the spiral top connection with it and the die nipple of lower end like bill; The outer hook hook of described spiral is welded with spiral salvaging dish with it.
The external diameter of described spiral salvaging dish is designed to carry 2 of sucker rods hanging Φ 19mm-Φ 22mm, and can not occur repeating well in the trip-out process and be as the criterion.
Described die nipple also is to be welded on it the outer hook hook of spiral, and the taper design of bill is as the criterion for piercing easily crooked agglomerating sucker rod inner chamber like the described die nipple.
Bill three center is the hollow design of perforation like described top connection, the outer hook hook body of spiral, the die nipple.
Compared to prior art, the utlity model has following beneficial effect:
(1) bottom with fishing tool is designed to Φ 60mm die nipple, and inclined point shape is processed in the bottom, and the instrument of being convenient to is introduced in the middle of the agglomerating sucker rod.And utilize the thread making of die nipple to salvage characteristic, and in well, roll into a ball dead phenomenon in case sucker rod occurs, also can carry out thread making to it and salvage.
(2) process crooked agglomerating sucker rod according to casing size and salvage with boring and mill the outer hook of formula spiral, its spiral salvaging dish external diameter can be carried 2 of the sucker rods of extension Φ 19mm-Φ 22mm, and the phenomenon of well can not occur repeating in the trip-out process.The method processing that spiral salvaging dish adopts sucker rod to weld in shaft, its size can satisfy the salvaging requirement; Die nipple carries out with the employing welding procedure that is connected between the outer hook of spiral, and its intensity can be protected, and carries load in the salvaging and also can satisfy construction requirement.
(3) solid tool is designed with unimpeded inner chamber, in order to can realize circulation well cleanup in the salvaging process, is beneficial to sand production in oil or junk such as are buried at the salvaging in particular cases.Because the hydrophthalmia of die nipple is little, lower punch power is large, can effectively clean top of fish simultaneously.
Description of drawings
Fig. 1 is that the agglomerating sucker rod of bending of the present utility model is salvaged the structural representation that mills the outer hook of formula spiral with boring.
Among the figure: 1, top connection; 2, the outer hook hook body of spiral; 3, bill like the die nipple; 4, spiral salvaging dish; 5, hollow design.
The specific embodiment
Relevant detailed description of the present utility model and technology contents cooperate description of drawings as follows, yet accompanying drawing only provides the usefulness of reference with explanation, and the utility model is limited.
According to shown in Figure 1, crooked agglomerating sucker rod is salvaged with boring and is milled the outer hook of formula spiral, comprise the outer hook hook body 2 of spiral and be separately positioned on the hook hook is held outside the spiral top connection 1 with it and the die nipple of lower end like bill 3; The outer hook hook of described spiral is welded with spiral salvaging dish 4 with it.The external diameter of described spiral salvaging dish is designed to carry 2 of sucker rods hanging Φ 19mm-Φ 22mm, and can not occur repeating well in the trip-out process and be as the criterion.Described die nipple also is to be welded on it the outer hook hook of spiral, and the taper design of bill is as the criterion for piercing easily crooked agglomerating sucker rod inner chamber like the described die nipple.Bill three center is the hollow design 5 of perforation like described top connection, the outer hook hook body of spiral, the die nipple.
After this instrument enters well, adopt light mode of pressing slow-speed to utilize bill and its drillability like the die nipple successfully to enter the center of crooked agglomerating sucker rod, again gradually pressurization, utilize the thread making reaming hole of the bill junk inner chamber that deepens continuously, utilize the outer hook rotation of spiral salvaging dish to carry and hang the principle of salvaging, sucker rod dish inflexibly on spiral salvaging dish, is successfully salvaged crooked agglomerating sucker rod.
This instrument can guarantee not break broken rod fall on the top of fish of bottom after salvaging, and has avoided the phenomenon of reprocessing top of fish, success salvage crooked agglomerating sucker rod.
In a word, the utlity model has following advantage: (1) the sucker rod top of fish crooked agglomerating after, use through printing in the situation that confirms to have in the middle of it routing, have good salvaging effect; (2) can not make the interior accident of well complicated; (3) simple to operate; (4) practicality is very strong.
The above only is preferred embodiment of the present utility model, and non-in order to limit claim of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to claim of the present utility model.
Claims (4)
1. crooked agglomerating sucker rod is salvaged with boring and is milled the outer hook of formula spiral, it is characterized in that, comprise the outer hook hook body of spiral and be separately positioned on the hook hook is held outside the spiral top connection with it and the die nipple of lower end like bill; The outer hook hook of described spiral is welded with spiral salvaging dish with it.
2. the agglomerating sucker rod of bending according to claim 1 is salvaged with boring and is milled the outer hook of formula spiral, it is characterized in that, the external diameter of described spiral salvaging dish is designed to carry 2 of sucker rods hanging Φ 19mm-Φ 22mm, and can not occur repeating well in the trip-out process and be as the criterion.
3. the agglomerating sucker rod of bending according to claim 1 is salvaged with boring and is milled the outer hook of formula spiral, it is characterized in that, described die nipple also is to be welded on it the outer hook hook of spiral, and the taper design of bill is as the criterion for piercing easily crooked agglomerating sucker rod inner chamber like the described die nipple.
4. the agglomerating sucker rod of bending according to claim 1 is salvaged with boring and is milled the outer hook of formula spiral, it is characterized in that, described top connection, spiral outward like hook hook body, the die nipple bill three center be the hollow design of perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395439 CN202745783U (en) | 2012-08-10 | 2012-08-10 | Drilling and milling type spiral external hook for salvaging clustered sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395439 CN202745783U (en) | 2012-08-10 | 2012-08-10 | Drilling and milling type spiral external hook for salvaging clustered sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745783U true CN202745783U (en) | 2013-02-20 |
Family
ID=47705200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220395439 Expired - Fee Related CN202745783U (en) | 2012-08-10 | 2012-08-10 | Drilling and milling type spiral external hook for salvaging clustered sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196482A (en) * | 2014-07-16 | 2014-12-10 | 山西蓝焰煤层气集团有限责任公司 | Technology for salvaging equal-altitude accident sources of two sucker rods in coal-bed gas well |
| CN106481298A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of spiral combination fisher |
-
2012
- 2012-08-10 CN CN 201220395439 patent/CN202745783U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196482A (en) * | 2014-07-16 | 2014-12-10 | 山西蓝焰煤层气集团有限责任公司 | Technology for salvaging equal-altitude accident sources of two sucker rods in coal-bed gas well |
| CN104196482B (en) * | 2014-07-16 | 2016-06-08 | 山西蓝焰煤层气集团有限责任公司 | A kind of salvaging contour accident head technique of coal bed gas well double-pumping rod |
| CN106481298A (en) * | 2015-08-31 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of spiral combination fisher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204082014U (en) | A kind of combined type PDC drill bit | |
| CN201771454U (en) | Recyclable drilling rig | |
| CN203948062U (en) | Returnable core-through slip socket | |
| CN204984323U (en) | Novel compound fisher | |
| CN103147712A (en) | Casing milling fishing collar for short and light fell articles | |
| CN202745783U (en) | Drilling and milling type spiral external hook for salvaging clustered sucker rod | |
| CN113530448A (en) | One-time pore-forming while-drilling casing device for soft coal seam | |
| CN215595491U (en) | One-time pore-forming while-drilling casing device for soft coal seam | |
| CN202914011U (en) | Drilling and grinding locking fishing tool for oil-gas well | |
| CN103775017B (en) | Device is dragged in a kind of Refloatation method and side used of disconnected bar | |
| CN210217679U (en) | Small well bore sleeve milling, making and buckling, fishing and well repairing tool | |
| CN202731807U (en) | Downhole fishing tool | |
| CN205677573U (en) | Sleeve type helical drilling rod fisher | |
| CN201310311Y (en) | Composite latch jack | |
| CN204920878U (en) | Dedicated formula split that moves back of coupling drags for lance | |
| CN210858632U (en) | Fishing tool for underground fish | |
| CN204040941U (en) | Salvage the special centralizing tool of sleeve pipe | |
| CN204082068U (en) | Oil field operation salvages fettling installation | |
| CN203335006U (en) | Milling overshot for short and light falling object | |
| CN101936143A (en) | Reclaimable drilling rig device | |
| CN203161150U (en) | Side fisher for fishing underground broken rod | |
| CN216950250U (en) | Combined drill bit for fishing foreign matters in hole | |
| CN212406612U (en) | Sandstone geothermal well same-diameter well body structure | |
| CN220869362U (en) | Broken small junk fisher suitable for horizontal well | |
| CN203362093U (en) | Claw hook type overshot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |