CN203452708U - Catching device for objects falling into well - Google Patents
Catching device for objects falling into well Download PDFInfo
- Publication number
- CN203452708U CN203452708U CN201320315917.1U CN201320315917U CN203452708U CN 203452708 U CN203452708 U CN 203452708U CN 201320315917 U CN201320315917 U CN 201320315917U CN 203452708 U CN203452708 U CN 203452708U
- Authority
- CN
- China
- Prior art keywords
- dipper
- catching
- conduit
- guide pipe
- catching cylinder
- 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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- Earth Drilling (AREA)
Abstract
The utility model discloses a catching device for objects falling into a well. The catching device includes an upper joint, a catching cylinder and a guide pipe. The upper joint is in threaded connection with the catching cylinder. The upper end of the guide pipe is in threaded connection with the upper joint. The inner wall of the catching cylinder is provided with steel wire ropes uniformly from up and down. The guide pipe is a T-shaped hollow pipe. The outer wall of the guide pipe is provided with steel wire ropes at positions corresponding to the steel wire ropes arranged on the inner wall of the catching cylinder from top down. The outer wall of the guide pipe is provided with a water hole. The length of the guide pipe is greater than that of the catching cylinder. The inner wall of the catching cylinder is provided with a blocking board. According to the utility model, by utilizing an elasticity feature of the steel wire ropes, small pieces of falling objects can enter into the catching cylinder. And the blocking board fixes the small pieces of the falling objects in the catching cylinder, so that the small pieces of the falling objects do not fall off again in a catching cylinder lifting process. The catching device for the objects falling into the well is convenient to operate. Catching efficiency is improved, operation cost is reduced and risks of facing a complicated underground environment can be avoided effectively.
Description
Technical field
The utility model relates to a kind of falling object fishing tool, is specifically related to a kind of trouble of lost tool in hole fisher.
Background technology
In underground work process, often there will be paraffin scraper, plummet, rig tool, bias-wearing-proof apparatus of pumping rod, the strip that packing element fragment equal-volume is less, the situation of sheet junk; this brings certain difficulty to workover treatment; mostly use at present the fishing tool of tackling all problems at once; this instrument relies on pawl head inwardly to wrap under pressure, realizes fishing for of small falling object.But this instrument, due to the restriction of structure and operation, can cause the phenomenon of repeatedly salvaging even invalid salvaging, has strengthened labour intensity, has increased operating cost.
Chinese patent literature 02232113.6 discloses a kind of downhole fishing claw, and it comprises top connection, fishing socket.The lower end of fishing socket has been threaded connection 2-4 thin-walled bailer grab, is welded with steel wire or reinforcing bar on the inwall of bailer grab, but due to complex in well, the mode that this fishing tool relies on the interior bag of pawl head to hold together is salvaged and is difficult to realize salvaging object.
Utility model content
The purpose of this utility model is to provide a kind of high efficiency underground fishing tool.
For achieving the above object, the utility model is by the following technical solutions:
Trouble of lost tool in hole fisher, comprise top connection, dipper, conduit, described top connection is connected with described dipper by screw thread, described conduit upper end is connected with described top connection by screw thread, described dipper inwall is provided with wire rope from top to bottom, described conduit is T-shaped hollow section, on described conduit outer tube wall, in the position corresponding with wire rope on described dipper inwall, be provided with wire rope, the outer tube wall of described conduit is provided with hydrophthalmia, the length of described conduit is greater than described dipper length, and described dipper inwall is provided with baffle plate.
Described dipper lower end is guide shoe.
Described conduit lower end is taper.
Wire rope on described dipper inwall, the wire rope on conduit outer tube wall are many groups.
The baffle plate of described dipper inwall is elastic baffle, and described baffle plate is a plurality of, and described baffle plate is distributed on described dipper inwall.
Trouble of lost tool in hole fisher of the present utility model comprises top connection, dipper, conduit, top connection is connected with dipper by screw thread, conduit upper end is connected with top connection by screw thread, dipper inwall is evenly provided with wire rope from top to bottom, position corresponding with wire rope on dipper inwall on conduit outer tube wall is provided with wire rope, this trouble of lost tool in hole fisher is by utilizing the elastic characteristic of wire rope, guarantee that small falling object enters dipper, baffle plate is fixed on small falling object in dipper, guarantee the small falling object the dragging for well that do not fall in lift pipe string process, easy to operate, improved salvaging efficiency, saved operating cost, can effectively avoid the complicated risk of down-hole accident.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
The specific embodiment
Embodiment of the present utility model, as shown in Figure 1: trouble of lost tool in hole fisher comprises top connection 1, dipper 2, conduit 3, top connection 1 is connected with dipper 2 by screw thread, and dipper 2 inwalls are evenly provided with 2 groups of wire rope 4a from top to bottom; Conduit 3 is T-shaped hollow section, the conduit 3 outer tube walls position corresponding with the top-down wire rope 4a of dipper 2 inwall is provided with 2 groups of wire rope 4b, dipper 2 lower ends are guide shoe, conduit 3 lower ends are tapers, the outer tube wall of conduit 3 is provided with hydrophthalmia 6, the length of conduit 3 is greater than the length of dipper 2, and conduit 3 upper ends are connected with top connection 1 by screw thread.Dipper 2 inwalls are evenly provided with 4 baffle plates 5, and the baffle plate 5 of dipper 2 inwalls is elastic baffles, can stop that the trouble of lost tool in hole entering in dipper 2 falls into pit shaft.
When salvaging small falling object, top connection 1 of the present utility model is connected with top tubing string by screw thread, down to apart from junk top of fish 1-2 rice, by the hydrophthalmia 6 turn on pump well-flushings on conduit 3, termination of pumping after the sand setting on top of fish top is cleaned, transfer tubing string pressurization, conduit 3 very easily enters small falling object inside, small falling object is up along the guide shoe of dipper 2 lower ends under the effect of the pressure of the drill, back down baffle plate 5, wire rope 4a, 4b enters dipper 2 inside, rotation tubing string 5-7 circle, make small falling object at wire rope 4a, compacting under the elastic reaction of 4b, the small falling object that does not enter wire rope is descending, by baffle plate 5, stopped, therefore, the small falling object dragging for can firmly be enclosed in dipper 2 inner chambers, during lift pipe string, can not fall in well, guaranteed salvaging efficiency.
Claims (5)
1. trouble of lost tool in hole fisher, comprise top connection (1), dipper (2), conduit (3), it is characterized in that: described top connection (1) is connected with described dipper (2) by screw thread, described conduit (3) upper end is connected with described top connection (1) by screw thread, described dipper (2) inwall is provided with wire rope (4a) from top to bottom, described conduit (3) is T-shaped hollow section, on described conduit (3) outer tube wall, in the position corresponding with wire rope (4a) on described dipper (2) inwall, be provided with wire rope (4b), the outer tube wall of described conduit (3) is provided with hydrophthalmia (6), the length of described conduit (3) is greater than described dipper (2) length, described dipper (2) inwall is provided with baffle plate (5).
2. trouble of lost tool in hole fisher according to claim 1, is characterized in that: described dipper (2) lower end is guide shoe.
3. trouble of lost tool in hole fisher according to claim 2, is characterized in that: described conduit (3) lower end is taper.
4. trouble of lost tool in hole fisher according to claim 3, is characterized in that: the wire rope (4b) on the wire rope (4a) on described dipper (2) inwall, conduit (3) outer tube wall is many groups.
5. according to the trouble of lost tool in hole fisher described in any one in claim 1-4, it is characterized in that: the baffle plate (5) of described dipper (2) inwall is elastic baffle, described baffle plate (5) is a plurality of, and described baffle plate (5) is distributed on described dipper (2) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315917.1U CN203452708U (en) | 2013-06-04 | 2013-06-04 | Catching device for objects falling into well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320315917.1U CN203452708U (en) | 2013-06-04 | 2013-06-04 | Catching device for objects falling into well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452708U true CN203452708U (en) | 2014-02-26 |
Family
ID=50132592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320315917.1U Expired - Fee Related CN203452708U (en) | 2013-06-04 | 2013-06-04 | Catching device for objects falling into well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821473A (en) * | 2014-03-03 | 2014-05-28 | 中煤特殊凿井有限责任公司 | Hole bottom falling object fisher in drilling |
| CN111075384A (en) * | 2020-01-03 | 2020-04-28 | 西南石油大学 | Spiral guide type underground steel wire rope fishing device |
-
2013
- 2013-06-04 CN CN201320315917.1U patent/CN203452708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821473A (en) * | 2014-03-03 | 2014-05-28 | 中煤特殊凿井有限责任公司 | Hole bottom falling object fisher in drilling |
| CN111075384A (en) * | 2020-01-03 | 2020-04-28 | 西南石油大学 | Spiral guide type underground steel wire rope 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: 20140226 Termination date: 20140604 |