CN2841945Y - The outer hook fishing spear of locking type - Google Patents
The outer hook fishing spear of locking type Download PDFInfo
- Publication number
- CN2841945Y CN2841945Y CN 200520019239 CN200520019239U CN2841945Y CN 2841945 Y CN2841945 Y CN 2841945Y CN 200520019239 CN200520019239 CN 200520019239 CN 200520019239 U CN200520019239 U CN 200520019239U CN 2841945 Y CN2841945 Y CN 2841945Y
- Authority
- CN
- China
- Prior art keywords
- tube
- bar
- outer hook
- locking
- hook
- 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 outer hook fishing spear of locking type relates to the underground work fishing tool of using in a kind of oil field.It by landing nipple, sliding bar, counterweight tube, hang tube, suspension joint, locking tube, drag for bar, outer hook is formed.Mainly solve existing interior hook or outer hook fishing spear, the wire rope of hook or outer hook in inserting in the use of going into the well, the problem of normal generation slippage or bit freezing in having gone up.It is characterized in that: car has the tapering cylindrical cavity in locking tube, is welded with hook outside two symmetries dragging for the bar center.The counterweight tube, hang tube, the locking tube links and connects, the dragging for bar, suspension joint, sliding bar, landing nipple and can slide up and down after linking and connecing of its inner chamber and top dress.This utility model is mainly used in the salvaging of wire rope in the bailing well sleeve pipe.Go into the well and insert the wire rope that drags for the outer hook of two symmetries of bar center in using, in having gone up at the counterweight tube, hang tube, a locking internal taper cylindrical cavity that tin under the effect that drops, is locked and firmly pin, not slippage, bit freezing can not salvaged well head falling the well wire rope.
Description
Affiliated technical field
The utility model relates to the down-hole fishing tool of using in a kind of oil field, especially for the outer hook fishing spear of the locking type of salvaging wire rope in the bailing well sleeve pipe.
Background technology
At present, be used for the oil field and salvage wire rope in the bailing well sleeve pipe, the internal and external hook fishing spear is arranged, structure respectively by top connection, drag for letter, interior hook or top connection, pressure cap, drag for bar, outer hook part is formed.But go into the well insert in using in the wire rope of hook or outer hook, just changeing the oil pipe number of turns and lacking and twine not agglomeratingly, normal in having gone up slippage takes place, just changeed the oil pipe number of turns more and be wound in an agglomerate, normal generation bit freezing in having gone up.
Summary of the invention
In order to overcome existing interior hook or outer hook fishing spear, go into the well insert in using in the wire rope of hook or outer hook, the normal deficiency that slippage or bit freezing take place in having gone up, the utility model provides a kind of locking type outer hook fishing spear, go into the well and insert the wire rope that drags for the outer hook of two symmetries of bar center in using, gone up at the counterweight tube, hung tube, a locking tube internal taper cylindrical cavity that under the effect of tenesmus, is locked and firmly pin not slippage, not bit freezing.
The technical scheme that its technical problem that solves the utility model adopts is: the outer hook fishing spear of a kind of locking type, it comprises landing nipple, sliding bar, counterweight tube, hangs tube, suspension joint, locking tube, drags for bar, outer hook part.Car has external screw thread in locking tube upper end, and interior car has the tapering cylindrical cavity, and car has external screw thread on dragging for bar, and center is welded with the outer hook of two symmetries, and the place, bottom is welded with three asymmetric outer hooks.And outer hook is welded on respectively drags for bar middle and lower part place, to drag for bar upper end again passes the internal taper cylindrical cavity and links and connect the suspension joint lower end from a locking tube lower end, then the sliding bar lower end is linked and connect the suspension joint upper end, afterwards sliding bar upper end is linked and connects the landing nipple lower end from hanging that internal round chamber is passed in a tube lower end and passing internal round chamber from counterweight tube lower end successively, to hang a tube upper and lower side at last and link respectively and connect counterweight tube lower end and locking tube upper end forms, and be top cylinder bottom and drag for bar and be welded with the counter shape.It is characterized in that: in locking tube, be provided with the tapering cylindrical cavity, be provided with hook outside two symmetries dragging for the bar center.
The beneficial effects of the utility model are, the outer hook fishing spear of this locking type is gone into the well and inserted an internal taper cylindrical cavity that is locked in rising on the wire rope that drags for the outer hook of two symmetries of bar center in using and firmly pin, not slippage, and bit freezing can not salvaged well head falling the well wire rope.This locking type fishing spear can be used for the oil field and salvages wire rope or cable in all kinds of casings.Use simple to operate, reliable operation, cost is low.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the vertical section organigram of the outer hook fishing spear embodiment of locking type.
Among Fig. 11, landing nipple, 2, sliding bar, 3, the counterweight tube, 4, hang tube, 5, suspension joint, 6, the locking tube, 7, drag for bar, 8, outer hook.
Fig. 2 is among Fig. 13, counterweight tube section part drawing.
Fig. 3 is among Fig. 14, hang a tube section part drawing.
Fig. 4 is among Fig. 16, a locking tube section part drawing.
The specific embodiment
The outer hook fishing spear of a kind of locking type in the embodiment shown in fig. 1, and outer hook 8 is welded on respectively drags for bar 7 middle and lower parts places, to drag for bar 7 upper ends again passes the internal taper cylindrical cavity and links and connect suspension joint 5 lower ends from locking tube 6 lower ends, then sliding bar 2 lower ends are linked and connect suspension joint 5 upper ends, afterwards sliding bar 2 upper ends are linked and connect landing nipple 1 lower end from hanging that internal round chamber is passed in tube 4 lower ends and passing internal round chamber from counterweight tube 3 lower ends successively, to hang tube 4 upper and lower sides at last and link respectively and connect counterweight tube 3 lower ends and locking tube 6 upper ends form, and be top cylinder bottom and drag for bar 7 and be welded with outer hook 8 shapes.It is characterized in that: in locking tube 6, be provided with the tapering cylindrical cavity, be provided with hook 8 outside two symmetries dragging for bar 7 center.
The utility model operating principle and use method of operating are: the outer hook fishing spear of this locking type that will assemble upper end links and connects the oil pipe lower end, rely on shaft mouth operation equipment to be lowered in the bailing well sleeve pipe, instantly above detecting well wire rope top of fish depth location about 20 meters the time in advance, drain line under slowing down slowly, observe the shown payload situation of change of weight indicator that is installed on the implement simultaneously, instantly when falling well wire rope (more) top of fish and slightly carried on the back, the shown load of weight indicator can diminish, at this moment generally slowly descend about 1.5 meters of drain lines again, just changeing the oil pipe half-turn, slowly having gone up oil pipe then carries sliding bar 2 and links the suspension joint 5 that connects, it is up to drag for bar 7, and the counterweight tube 3 of sliding bar 2 outer walls and link the suspension tube 4 that connects, locking tube 6 is to tenesmus, force the outer hook 8 of two symmetries of dragging for the welding of bar 7 center and insert the wire rope that two symmetry is located hook 8, together getting into locking tube 6 internal taper cylindrical cavities is firmly pinned, in addition it drags for some or the two vertical or oblique straight wire rope in limit of staying individually of the asymmetric outer hook of three of place, bar 7 bottoms welding 8, continue slowly to have gone up oil pipe, as observe and reduce gradually again after load has obvious increase as shown in the weight indicator, illustrate that the hook fishing spear has salvaged the well wire rope outside this locking type, can raise speed and steadily go up oil pipe, until pull the well head end out, thereby reach falling the purpose that the well wire rope is salvaged the bailing well mouth falling the well wire rope.
Claims (1)
1, the outer hook fishing spear of a kind of locking type, car has external screw thread in locking tube upper end, interior car has the tapering cylindrical cavity, car has external screw thread on dragging for bar, center is welded with the outer hook of two symmetries, the place, bottom is welded with three asymmetric outer hooks, and outer hook is welded on respectively drags for bar middle and lower part place, to drag for bar upper end again passes the internal taper cylindrical cavity and links and connect the suspension joint lower end from a locking tube lower end, then the sliding bar lower end is linked and connect the suspension joint upper end, afterwards sliding bar upper end is linked and connects the landing nipple lower end from hanging that internal round chamber is passed in a tube lower end and passing internal round chamber from counterweight tube lower end successively, to hang a tube upper and lower side at last links respectively and connects counterweight tube lower end and locking tube upper end forms, be top cylinder bottom and drag for and be welded with the counter shape on the bar, it is characterized in that: in the locking tube, be provided with the tapering cylindrical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019239 CN2841945Y (en) | 2005-05-08 | 2005-05-08 | The outer hook fishing spear of locking type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019239 CN2841945Y (en) | 2005-05-08 | 2005-05-08 | The outer hook fishing spear of locking type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2841945Y true CN2841945Y (en) | 2006-11-29 |
Family
ID=37445831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520019239 Expired - Fee Related CN2841945Y (en) | 2005-05-08 | 2005-05-08 | The outer hook fishing spear of locking type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2841945Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305022A (en) * | 2011-08-12 | 2012-01-04 | 中国地质大学（武汉） | Salvage-type casing pipe drilling tool for drilling |
| CN105257233A (en) * | 2015-10-20 | 2016-01-20 | 中国石油天然气股份有限公司 | Hydraulic anti-falling cable fishing tool |
| CN107339077A (en) * | 2017-03-30 | 2017-11-10 | 中国石油天然气股份有限公司 | Underground fishing tool and application method based on controlled in wireless |
-
2005
- 2005-05-08 CN CN 200520019239 patent/CN2841945Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305022A (en) * | 2011-08-12 | 2012-01-04 | 中国地质大学（武汉） | Salvage-type casing pipe drilling tool for drilling |
| CN105257233A (en) * | 2015-10-20 | 2016-01-20 | 中国石油天然气股份有限公司 | Hydraulic anti-falling cable fishing tool |
| CN105257233B (en) * | 2015-10-20 | 2018-01-05 | 中国石油天然气股份有限公司 | A kind of hydraulic anti-separation formula cable salvage instrument |
| CN107339077A (en) * | 2017-03-30 | 2017-11-10 | 中国石油天然气股份有限公司 | Underground fishing tool and application method based on controlled in wireless |
| CN107339077B (en) * | 2017-03-30 | 2019-06-11 | 中国石油天然气股份有限公司 | Underground fishing tool and application method based on wireless control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |