CN203066921U - Fisher for fishing eccentric wear fish top - Google Patents
Fisher for fishing eccentric wear fish top Download PDFInfo
- Publication number
- CN203066921U CN203066921U CN 201320089156 CN201320089156U CN203066921U CN 203066921 U CN203066921 U CN 203066921U CN 201320089156 CN201320089156 CN 201320089156 CN 201320089156 U CN201320089156 U CN 201320089156U CN 203066921 U CN203066921 U CN 203066921U
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- CN
- China
- Prior art keywords
- slips
- shell
- kava
- tubular body
- eccentric wear
- 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
The utility model belongs to a fisher for fishing an eccentric wear fish top, which comprises an upper joint, an upper tubular body, an upper spring, an upper kava, a lower tubular body, a lower spring, a lower kava and a guide shoe, wherein outer threads of the upper joint are connected with inner threads of the upper tubular body, the upper tubular body is connected with the guide shoe through the lower tubular body, the upper kava is arranged inside the cavity of the upper tubular body, and the upper spring is arranged between the upper kava and the bottom part of the joint; the lower kava is arranged inside the cavity of the lower tubular body, and the lower spring is arranged between the lower kava and the bottom of the upper tubular body; the upper kava and the top of the lower kava are tubular-shaped, and expansion grooves are formed in the surface of the tubular, the bottoms of the upper kava and the lower kava adopt a cone structure with small top and big bottom, the lower parts of the cavity of the lower tubular body and the upper tubular body adopt inner cone surfaces which are matched with the kava cone surface, and an integral through hole is formed among the inner side of the upper joint, the upper tubular body, the upper kava, the lower tubular body, the lower kava and the guide shoe; and the fisher has a simple structure, is convenient to use, improves the success fishing rate, and shortens the operating time as well.
Description
Technical field
The utility model belongs to the conventional fishing tool technical field of petroleum gas workover treatment, is specifically related to a kind of eccentric wear top of fish fisher.
Background technology
The well workover fishing tool of present domestic routine be divided into drag in the lance class and the tube class drag for dual mode outward, if the fish top of fish is intact, then can select die nipple, slide block fishing spear, reversible fishing spear for use, left hand fishing spear or box cupling drag for instruments such as lance and drag in carrying out, or select for use instruments such as female coupling tap, slip socket, reversible slip socket, the dipper of windowing to carry out outer dragging for, fishing success ratio is all very high.But complicated along with the latter period of oilfield development geological conditions, the production status of oil-water well becomes increasingly complex, because hole deviation, packer setting, down stroke sucker rod helical buckling, eccentric wear or corrosion junk are more and more in the well that the moisture high factor of output liquid causes.When the junk of salvaging irregular top of fish, serious as tubing, bar class eccentric wear, top of fish break corrosion and smaller diameter rods class junk etc., owing to be subjected to the restriction of top of fish situation, if use vatman's tool in the conventional lance class, oil pipe is easy to burst, splitting, make the top of fish gross distortion, cause look for drag for complicated; If with the outer vatman's tool of conventional tube class, oil pipe is easy to distortion and inwardly curls or undergauge, slip insert is carried load, at present domestic also comparatively not effective fishing tool on can not wedging fish body forming effectively.When particularly top of fish burn into eccentric wear was serious, the complexity that also might make the change of trouble of lost tool in hole situation when fishing has increased difficulty of construction to fishing, and might cause engineering accident, even oil-water well was scrapped.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of junk that can salvage various irregular tops of fish, simple in structure, easy to use is provided, and improves fishing success ratio and shortens the eccentric wear top of fish fisher of activity duration.
The purpose of this utility model is achieved in that this fisher comprises top connection, upper shell, upper spring, upper slips, lower shell, lower spring, lower slips and guide shoe, wherein, top connection is connected with the internal thread of upper shell by its external screw thread, upper shell is connected with guide shoe by lower shell, the inside cavity of upper shell is provided with upper slips, is provided with upper spring between upper slips and the top connection bottom; The inside cavity of lower shell is provided with lower slips, is provided with lower spring between the bottom of lower slips and upper shell; The top of described upper slips and lower slips is tubular, its surface offers the breathing groove, upper slips and lower slips bottom are the following little big cone structure of, the cavity bottom of upper shell and lower shell is the inner conical surface suitable with the slips conical surface, top connection, upper shell, upper slips, lower shell, complete through hole of the inner formation of lower slips and guide shoe.
Described breathing groove is 8, and it divides equally the external peripheral surface at tubular.
Described cone structure inwall is the stepped canine tooth structures of several uniform internal diameters.
The bottom of described lower shell and guide shoe are by being threaded.
Offer the oil extraction slotted eye that is connected with cavity on the excircle end face of described upper shell and lower shell.
Described oil extraction slotted eye is opened in the middle part of upper shell and lower shell.
Be respectively equipped with four oil extraction slotted eyes on described upper shell and the lower shell.
The eccentric wear top of fish fisher of making according to such scheme, by being provided with top connection, upper slips, lower shell, lower slips and guide shoe, thus reach the junk of salvaging various irregular tops of fish, have simple in structurely, easy to use, improve fishing success ratio and shorten the advantage of activity duration.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is lower shell structural representation of the present utility model.
Fig. 3 is lower slips structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, 2, 3, the utility model is eccentric wear top of fish fisher, this fisher comprises top connection 1, upper shell 2, upper spring 3, upper slips 4, lower shell 5, lower spring 6, lower slips 7 and guide shoe 8, wherein, top connection 1 is connected with the internal thread of upper shell 2 by its external screw thread, and upper shell 2 is connected with guide shoe 8 by lower shell 5, the inside cavity of upper shell 2 is provided with upper slips 4, is provided with upper spring 3 between upper slips 4 and top connection 1 bottom; The inside cavity of lower shell 5 is provided with lower slips 7, is provided with lower spring 6 between the bottom of lower slips 7 and upper shell 2; The top of described upper slips 4 and lower slips 7 is tubular, its surface offers breathing groove 10, upper slips 4 and lower slips 7 bottoms are the following little big cone structure of, the cavity bottom of upper shell 2 and lower shell 5 is the inner conical surface suitable with slips 4 conical surfaces, top connection 1, upper shell 2, upper slips 4, lower shell 5, lower slips 7 and complete through hole of guide shoe 8 inner formations.
Described breathing groove 10 is 8, and it divides equally the external peripheral surface at tubular.Described cone structure inwall is the stepped canine tooth structures of several uniform internal diameters.The bottom of described lower shell 5 and guide shoe 8 are by being threaded.Offer the oil extraction slotted eye 9 that is connected with cavity on the excircle end face of described upper shell 2 and lower shell 5.Described oil extraction slotted eye 9 is opened in the middle part of upper shell 2 and lower shell 5.Be respectively equipped with four oil extraction slotted eyes 9 on described upper shell 2 and the lower shell 5.
When using this fisher, this fisher is connected G.I.H with the salvaging drilling tool, guide shoe 8 is transferred in slow dextrorotation when near top of fish, make the fish head enter guide shoe 8, when treating that top of fish is run into lower slips 7 generation resistances, apply axial compression, top of fish upwards enters lower slips 7, compress lower spring 6 simultaneously, make and move on the lower slips 7 relative lower shells 5 and separate gradually, junk enters lower shell 5 inner backs and continues up, when treating that top of fish is run into upper slips 4 generation resistances, under the axial compression operation, make top of fish upwards enter upper slips 4, compression upper spring 3, the bottom that moves to top connection 1 on the upper slips 4 relative upper shells 2 is also separated gradually, this moment, upper slips 4 and lower slips 7 were pressed down under the effect of spring force, and top of fish is bitten, and upper slips 4 and lower slips 7 dependence self elastic force applies clamping force just for the fish head.
On when carrying drilling tool this fisher up thereupon, under the effect of upper spring 3 and lower spring 6 elastic force and first clamping force, first of upper slips 4 and lower slips 7 and fish move down with respect to this fisher, the inner conical surface of upper shell 2 and lower shell 5 produces relative motion with upper slips 4 and 7 times little big cone structures of lower slips respectively and fits, the inner conical surface of upper shell 2 and lower shell 5 produces radial thrust to the cone structure of upper slips 4 and lower slips 7 respectively, force upper slips 4 and lower slips 7 to shrink, make it produce huge whole clamping force to the fish head, thereby sting tight fish head, when the oil pipe eccentric wear is serious, because upper slips 4 and lower slips 7 are big with the junk contact area, top of fish is stressed evenly, therefore top of fish is difficult for being torn damage, carries brill and can pull junk out.
Claims (7)
1. eccentric wear top of fish fisher, it is characterized in that: this fisher comprises top connection (1), upper shell (2), upper spring (3), upper slips (4), lower shell (5), lower spring (6), lower slips (7) and guide shoe (8), wherein, top connection (1) is connected with the internal thread of upper shell (2) by its external screw thread, upper shell (2) is connected with guide shoe (8) by lower shell (5), the inside cavity of upper shell (2) is provided with upper slips (4), is provided with upper spring (3) between upper slips (4) and top connection (1) bottom; The inside cavity of lower shell (5) is provided with lower slips (7), is provided with lower spring (6) between the bottom of lower slips (7) and upper shell (2); The top of described upper slips (4) and lower slips (7) is tubular, its surface offers breathing groove (10), upper slips (4) and lower slips (7) bottom are the following little big cone structure of, the cavity bottom of upper shell (2) and lower shell (5) is the inner conical surface suitable with slips (4) conical surface, top connection (1), upper shell (2), upper slips (4), lower shell (5), complete through hole of the inner formation of lower slips (7) and guide shoe (8).
2. eccentric wear top of fish fisher according to claim 1, it is characterized in that: described breathing groove (10) is 8, and it divides equally the external peripheral surface at tubular.
3. eccentric wear top of fish fisher according to claim 1 is characterized in that: described cone structure inwall is the stepped canine tooth structure of several uniform internal diameters.
4. eccentric wear top of fish fisher according to claim 1 is characterized in that: the bottom of described lower shell (5) and guide shoe (8) are by being threaded.
5. eccentric wear top of fish fisher according to claim 1 is characterized in that: offer the oil extraction slotted eye (9) that is connected with cavity on the excircle end face of described upper shell (2) and lower shell (5).
6. eccentric wear top of fish fisher according to claim 3, it is characterized in that: described oil extraction slotted eye (9) is opened in the middle part of upper shell (2) and lower shell (5).
7. eccentric wear top of fish fisher according to claim 3 is characterized in that: be respectively equipped with four oil extraction slotted eyes (9) on described upper shell (2) and the lower shell (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089156 CN203066921U (en) | 2013-02-19 | 2013-02-19 | Fisher for fishing eccentric wear fish top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089156 CN203066921U (en) | 2013-02-19 | 2013-02-19 | Fisher for fishing eccentric wear fish top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066921U true CN203066921U (en) | 2013-07-17 |
Family
ID=48765731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320089156 Expired - Fee Related CN203066921U (en) | 2013-02-19 | 2013-02-19 | Fisher for fishing eccentric wear fish top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145113A (en) * | 2019-06-28 | 2020-12-29 | 中国石油天然气股份有限公司 | Fishing device |
-
2013
- 2013-02-19 CN CN 201320089156 patent/CN203066921U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145113A (en) * | 2019-06-28 | 2020-12-29 | 中国石油天然气股份有限公司 | Fishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20140219 |