CN204716171U - Fishing tool in a kind of short top of fish - Google Patents
Fishing tool in a kind of short top of fish Download PDFInfo
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- CN204716171U CN204716171U CN201520259364.1U CN201520259364U CN204716171U CN 204716171 U CN204716171 U CN 204716171U CN 201520259364 U CN201520259364 U CN 201520259364U CN 204716171 U CN204716171 U CN 204716171U
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- main body
- pushing mechanism
- cone
- bailer grab
- fishing tool
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Abstract
The utility model discloses fishing tool in a kind of short top of fish, it comprises: tubular body, elasticity bailer grab, extension fixture; Extension fixture comprises cone and top-pushing mechanism; One end of cone is connected with the lower end of main body, and the cylindrical of the other end is provided with outer conical surface, and elasticity bailer grab is sleeved in described cone; Be provided with cavity between top-pushing mechanism and main body, between cavity and the intermediate throughholes of main body, be provided with pod apertures; In the below of pod apertures, in the intermediate throughholes of described main body or the through hole of cone, be provided with the ball seat sealed for pitching; After pitching sealing, the liquid in main body intermediate throughholes flows into cavity through described pod apertures, and under fluid pressure, top-pushing mechanism promotes described bailer grab and moves downward, and under the effect of the outer conical surface of cone, the blade tooth of bailer grab opens and realizes grasping movement.Interior fishing is carried out in the short top of fish hole that this instrument can realize being greater than 50mm, and structure is more simple, and salvaging efficiency improves greatly, reduces salvaging cost simultaneously.
Description
Technical field
The utility model relates to oil well kit technical field, particularly fishing tool in the short top of fish of one.
Background technology
Drop to the utensils such as the drill bit in shaft bottom, drilling tool, instrument in drilling process and be called " fish ", the top of these utensils is just named " top of fish ".Salvaging these utensils dropped is the modal technique of workover treatment, and common interior fishing tool, by the restriction of interior fishing tool structure, when the bore depth of top of fish is less than 100mm, is difficult to salvage.At this moment, fishing is carried out again after often first deepening the degree of depth of endoporus by the milling of milling bradawl.Considerably increase construction operation amount and operating cost.
Utility model content
For solving the problem, the purpose of this utility model is to provide fishing tool in a kind of short top of fish, and interior fishing is carried out in the short top of fish hole that this instrument can realize being greater than 50mm, and structure is simpler, and salvaging efficiency improves greatly, reduces salvaging cost simultaneously.
For achieving the above object, in disclosed a kind of short top of fish of the present utility model, fishing tool comprises: tubular body, elasticity bailer grab, for making the blade tooth of described bailer grab open the extension fixture capturing fish; Tubular body is provided with intermediate throughholes; Extension fixture comprises cone and top-pushing mechanism; Be provided with the through hole communicated with described main body intermediate throughholes in the middle of described cone, one end of cone is connected with the lower end of described main body, and the cylindrical of the other end is provided with outer conical surface, and described outer conical surface is amplified from top to bottom gradually; Described elasticity bailer grab is sleeved in described cone; Described top-pushing mechanism is sleeve-shaped, and on the body, its lower end is connected with the upper end of described bailer grab its suit; Be provided with cavity between described top-pushing mechanism and main body, between cavity and the intermediate throughholes of main body, be provided with pod apertures; In the below of pod apertures, in the intermediate throughholes of described main body or the through hole of cone, be provided with the ball seat sealed for pitching; After pitching sealing, the liquid in main body intermediate throughholes flows into described cavity through described pod apertures, and under fluid pressure, described top-pushing mechanism promotes described bailer grab and moves downward, and under the effect of the outer conical surface of cone, the blade tooth of bailer grab opens and realizes grasping movement.
Further, the locking mechanism for preventing top-pushing mechanism from upwards returning is provided with between described top-pushing mechanism and described main body.
Further, described locking mechanism is be arranged on the one way valve in described pod apertures.
Further, described locking mechanism is be separately positioned on jump ring between described main body and described top-pushing mechanism and latch.
Further, shear pin is provided with between described top-pushing mechanism and described main body, top-pushing mechanism is fixedly set in body exterior by this shear pin, after pitching sealing, liquid in main body intermediate throughholes flows into described cavity through described pod apertures, under fluid pressure, described shear pin is cut off rear described top-pushing mechanism to main body moved beneath, and then described in pushing tow, bailer grab moves downward.
Further, the blade tooth external surface of described elasticity bailer grab is designed with interior salvaging pawl, and inner surface is inner conical surface structure, and the outer conical surface cooperation corresponding to inner conical surface of described cone is used for forcing described blade tooth to open.
Further, described top-pushing mechanism is socket type, and sleeve inner is provided with annular table; Described main body is provided with the annular stage coordinated with described annular table, top-pushing mechanism is sleeved on after in main body, forms described cavity between described annular table, stage.
Further, described top-pushing mechanism comprises the shear pin seat, the cutting ferrule that connect setting from top to bottom successively; Described shear pin is arranged on shear pin seat, the upper-end contact of described cutting ferrule front end and described bailer grab; Described cutting ferrule is socket type, and sleeve inner is provided with annular table; Described main body is provided with the annular stage coordinated with described annular table, cutting ferrule is set with on the body, forms described cavity between described annular table, stage.
Further, described elasticity bailer grab comprises sleeve-shaped corpus unguis, corpus unguis is provided with the blade tooth of several strips.
When using the utility model to salvage fish, first not pitching, go into the well after instrument is installed on fishing string foot, as sand face, then tubing string is transferred in square impact side washing in limit, and when top of fish enters in elasticity bailer grab, pitching in tubing string, seals up the through hole of main body; Ground pump truck continues pressurization, hydraulic pressure enters the hydraulic cylinder be made up of main body and cutting ferrule by the pod apertures in main body after, under the effect of the pressure, shear pin is cut off, cutting ferrule is descending, elasticity bailer grab is descending with cutting ferrule, the space that wedging cone and top of fish endoporus form, and elasticity bailer grab outward pawl is nipped top of fish endoporus; Due in the descending process of cutting ferrule, the latch of its upper inside surface engages with the jump ring of design in main body simultaneously, can not retreat after cutting ferrule is descending, therefore, during upper lifting pipe post, under the effect of the power of salvaging, elasticity bailer grab has along the descending trend of cone outer cone, and elasticity bailer grab is more descending, under the acting in conjunction of outer surface of cone and elasticity bailer grab inner conical surface, grasp is stronger, fish finally salvaged go out drilling well.
Accompanying drawing explanation
Fig. 1 is the structural representation of fishing tool in a kind of short top of fish in embodiment 1;
Fig. 2 is the structural representation of fishing tool in a kind of short top of fish in embodiment 2;
1-main body; 2-top-pushing mechanism; 3-shear pin; 5-jump ring; 6-seal; 7-ball; 8-elasticity bailer grab; 9-cone; 1.1-pressure guide hole; 2.2-latch; 2.5-cavity; 8.2-pawl; 8.3-inner conical surface; 9.1-ball seat; 9.3-outer conical surface; 11-shear pin seat; 15-cutting ferrule.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.
embodiment 1
As shown in Figure 1, in a kind of short top of fish, fishing tool comprises: tubular body 1, elasticity bailer grab 8, capture the extension fixture of fish for making the blade tooth of bailer grab open; Tubular body 1 is provided with intermediate throughholes; Extension fixture comprises cone 9 and top-pushing mechanism 2; Be provided with the through hole communicated with main body intermediate throughholes in the middle of cone 9, one end of cone 9 is connected with the lower end of main body 1, and the cylindrical of the other end is provided with outer conical surface 9.3, and outer conical surface is amplified from top to bottom gradually; Elasticity bailer grab 8 is sleeved in cone; Top-pushing mechanism 2 is sleeve-shaped, and on the body 1, its lower end or conflict in the upper surface of bailer grab, or are fixedly connected with bailer grab upper end its suit.Elasticity bailer grab 8 comprises sleeve-shaped corpus unguis, corpus unguis is provided with the blade tooth of several strips.
Be provided with cavity 2.5 between top-pushing mechanism 2 and main body 1, between the intermediate throughholes of cavity 2.5 and main body 1, be provided with pod apertures 1.1; In the below of pod apertures 1.1, in the through hole of cone, be provided with the ball seat 9.1 for pitching sealing; After pitching 7 seals, the liquid in main body intermediate throughholes flows into cavity 2.5 through pod apertures 1.1, and under fluid pressure, top-pushing mechanism 2 promotes bailer grab 8 and moves downward, and under the effect of the outer conical surface 9.3 of cone 9, the blade tooth of bailer grab 8 opens and realizes grasping movement.
The locking mechanism for preventing top-pushing mechanism 2 from upwards returning is provided with between top-pushing mechanism 2 and main body 1.Locking mechanism is be separately positioned on jump ring 5 between main body 1 and top-pushing mechanism and latch 2.2.In addition, locking mechanism can also be arranged on the one way valve in described pod apertures.
Shear pin 3 is provided with between top-pushing mechanism 2 and main body 1, it is outside that top-pushing mechanism 2 is fixedly set in main body 1 by this shear pin, after pitching sealing, liquid in main body intermediate throughholes flows into cavity 2.5 through pod apertures 1.1, under fluid pressure, shear pin 3 is cut off rear top-pushing mechanism 2 to main body moved beneath, and then pushing tow bailer grab 8 moves downward.
The blade tooth external surface of elasticity bailer grab 8 is designed with interior salvaging pawl 8.2, and inner surface is inner conical surface structure 8.3, and outer conical surface 9.3 cooperation corresponding to inner conical surface 8.3 of cone 9 is used for forcing blade tooth to open.
Wherein, top-pushing mechanism 2 is socket type, and sleeve inner is provided with annular table; Main body 1 is provided with the annular stage coordinated with this annular table, top-pushing mechanism is sleeved on after in main body, forms cavity 2.5 between annular table, stage.
Wherein 6 is the seal for sealing between top-pushing mechanism and main body.
embodiment 2
The present embodiment is substantially the same manner as Example 1, and difference is:
As shown in Figure 2, top-pushing mechanism comprises the shear pin seat 11, the cutting ferrule 15 that connect setting from top to bottom successively; Shear pin 3 is arranged on shear pin seat 11, and cutting ferrule 15 front end is threaded with the top of bailer grab; Cutting ferrule 15 is socket type, and sleeve 15 inside is provided with annular table; Main body 1 is provided with the annular stage coordinated with annular table, cutting ferrule 15 is set with on the body 1, forms cavity 2.5 between annular table, stage.
Below only describe several preferred embodiments of the application by reference to the accompanying drawings, but the application is not limited thereto, every those of ordinary skill in the art are under the spirit not departing from the application, and any improvement made and/or distortion, all belong to the protection domain of the application.
Claims (9)
1. a fishing tool in short top of fish, it is characterized in that, it comprises: tubular body, elasticity bailer grab, capture the extension fixture of fish for making the blade tooth of described bailer grab open; Tubular body is provided with intermediate throughholes; Extension fixture comprises cone and top-pushing mechanism; Be provided with the through hole communicated with described main body intermediate throughholes in the middle of described cone, one end of cone is connected with the lower end of described main body, and the cylindrical of the other end is provided with outer conical surface, and described outer conical surface is amplified from top to bottom gradually; Described elasticity bailer grab is sleeved in described cone; Described top-pushing mechanism is sleeve-shaped, and on the body, its lower end is connected with the upper end of described bailer grab its suit; Be provided with cavity between described top-pushing mechanism and main body, between cavity and the intermediate throughholes of main body, be provided with pod apertures; In the below of pod apertures, in the intermediate throughholes of described main body or the through hole of cone, be provided with the ball seat sealed for pitching; After pitching sealing, the liquid in main body intermediate throughholes flows into described cavity through described pod apertures, and under fluid pressure, described top-pushing mechanism promotes described bailer grab and moves downward, and under the effect of the outer conical surface of cone, the blade tooth of bailer grab opens and realizes grasping movement.
2. fishing tool as claimed in claim 1, is characterized in that, being provided with the locking mechanism for preventing top-pushing mechanism from upwards returning between described top-pushing mechanism and described main body.
3. fishing tool as claimed in claim 2, it is characterized in that, described locking mechanism is be arranged on the one way valve in described pod apertures.
4. fishing tool as claimed in claim 2, is characterized in that, described locking mechanism is be separately positioned on jump ring between described main body and described top-pushing mechanism and latch.
5. fishing tool as claimed in claim 1, it is characterized in that, shear pin is provided with between described top-pushing mechanism and described main body, top-pushing mechanism is fixedly set in body exterior by this shear pin, after pitching sealing, the liquid in main body intermediate throughholes flows into described cavity through described pod apertures, under fluid pressure, described shear pin is cut off rear described top-pushing mechanism to main body moved beneath, and then described in pushing tow, bailer grab moves downward.
6. fishing tool as claimed in claim 1, it is characterized in that, the blade tooth external surface of described elasticity bailer grab is designed with interior salvaging pawl, and inner surface is inner conical surface structure, and the outer conical surface cooperation corresponding to inner conical surface of described cone is used for forcing described blade tooth to open.
7. fishing tool as claimed in claim 1, it is characterized in that, described top-pushing mechanism is socket type, and sleeve inner is provided with annular table; Described main body is provided with the annular stage coordinated with described annular table, top-pushing mechanism is sleeved on after in main body, forms described cavity between described annular table, stage.
8. fishing tool as claimed in claim 1, it is characterized in that, described top-pushing mechanism comprises the shear pin seat, the cutting ferrule that connect setting from top to bottom successively; Described shear pin is arranged on shear pin seat, the upper-end contact of described cutting ferrule front end and described bailer grab; Described cutting ferrule is socket type, and sleeve inner is provided with annular table; Described main body is provided with the annular stage coordinated with described annular table, cutting ferrule is set with on the body, forms described cavity between described annular table, stage.
9. fishing tool as claimed in claim 1, it is characterized in that, described elasticity bailer grab comprises sleeve-shaped corpus unguis, corpus unguis is provided with the described blade tooth of several strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259364.1U CN204716171U (en) | 2015-04-27 | 2015-04-27 | Fishing tool in a kind of short top of fish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259364.1U CN204716171U (en) | 2015-04-27 | 2015-04-27 | Fishing tool in a kind of short top of fish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716171U true CN204716171U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520259364.1U Active CN204716171U (en) | 2015-04-27 | 2015-04-27 | Fishing tool in a kind of short top of fish |
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| CN (1) | CN204716171U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988701A (en) * | 2017-04-21 | 2017-07-28 | 托普威尔石油技术股份公司 | A kind of hydraulic vibration fishing device |
| CN108331549A (en) * | 2017-01-20 | 2018-07-27 | 中国石油化工股份有限公司 | A kind of bailer grab and fishing sleeve |
-
2015
- 2015-04-27 CN CN201520259364.1U patent/CN204716171U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331549A (en) * | 2017-01-20 | 2018-07-27 | 中国石油化工股份有限公司 | A kind of bailer grab and fishing sleeve |
| CN108331549B (en) * | 2017-01-20 | 2022-05-03 | 中国石油化工股份有限公司 | Fishing claw and fishing sleeve |
| CN106988701A (en) * | 2017-04-21 | 2017-07-28 | 托普威尔石油技术股份公司 | A kind of hydraulic vibration fishing device |
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