CN104963643B - A kind of interior punching fishing spear instrument - Google Patents
A kind of interior punching fishing spear instrument Download PDFInfo
- Publication number
- CN104963643B CN104963643B CN201510287790.0A CN201510287790A CN104963643B CN 104963643 B CN104963643 B CN 104963643B CN 201510287790 A CN201510287790 A CN 201510287790A CN 104963643 B CN104963643 B CN 104963643B
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- Prior art keywords
- heart axle
- seat
- slips
- cut
- outer barrel
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- 238000004080 punching Methods 0.000 title claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000003628 erosive effect Effects 0.000 abstract description 7
- 210000002445 nipple Anatomy 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000008602 contraction Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The present invention specifically provides a kind of interior punching fishing spear instrument, including top connection, heart axle, cut off seat, outer barrel and slips, screwed connection between top connection and heart axle, cut off a screwed connection between lower end and outer barrel, cut off seat and outer barrel is placed on the outside of heart axle, seat is cut off to fix with heart axle by cutting off, slips is socketed in outside heart axle lower end, and the tail end of slips is placed between heart axle and outer barrel, the front end of slips is close to heart shaft end, cut off and be provided with positioning sleeve on the heart axle below seat, cut off and main spring is provided between seat and positioning sleeve, cut off and spring is provided between seat and slips, spring and main spring are in compressive state.The inventive structure is simple, manufacturing cost is low, it is easy to maintenance, efficiently solve the problem of flow controller has been difficult to because of fishing neck erosion, it ensure that the normal production of gas well and being smoothed out for other construction operations, meanwhile, device of being slipped out of the hand when occurring and can not go out flow controller from being located pipe nipple, it is ensured that construction safety.
Description
Technical field
The present invention relates to a kind of industrial gas oil underground operation tool, and in particular to a kind of interior punching fishing spear work
Tool.
Background technology
In gas field, flow controller is used as a kind of core that can ensure that gas field mesolow collection is defeated and produces steadily in the long term
Technology, plays an important role in the daily production of gas well is ensured.
However, because borehole fluid and sand grains produce serious erosion to flow controller fishing neck, causing flow controller fishing neck to damage
It is bad to even disappear completely.
Found in work progress, the flow controller that this class fishing neck is damaged by erosion can not be salvaged using conventional tool,
Risk and cost are salvaged in increase construction, and the normal production of gas well and other construction operations are impacted.
The content of the invention
The purpose of the present invention is to overcome existing flow controller fishing neck is difficult to salvaging after erosion attack the problem of.
Therefore, the invention provides a kind of interior punching fishing spear instrument, including top connection, heart axle, cut off seat, outer barrel and card
Watt, screwed connection between the top connection and heart axle is described to cut off a screwed connection between lower end and outer barrel, cuts off seat and outer barrel
The outside of heart axle is placed on, the seat that cuts off is fixed by cutting off with heart axle, and the slips is socketed in outside heart axle lower end, and slips
Tail end be placed between heart axle and outer barrel, the front end of slips is close on heart shaft end, the heart axle cut off below seat and set
There is positioning sleeve, described cut off is provided with main spring between seat and positioning sleeve, described cut off is provided with spring between seat and slips, bullet
Spring and main spring are in compressive state.
Fixed between above-mentioned top connection and heart axle by interior hexagonal flush end holding screw.
Fixed between above-mentioned positioning sleeve and the heart axle by elastic cylindrical pin.
Above-mentioned heart shaft end is tubaeform step.
The above-mentioned tubaeform slope of heart shaft end is consistent with slips inner surface slope.
The course of work and beneficial effect of the present invention：This interior punching fishing spear instrument that the present invention is provided carries out salvaging work
During industry, slips is under thrust of the spring to it, and slips keeps open configuration to enter and be caught in flow controller extension tubing, reaches
Capture the purpose of flow controller；Upward jarring is just carried out after slips is caught in flow controller extension tubing, acts flow controller；When saving
When stream device can not play out the situation for being located pipe nipple, downward jarring is carried out, outer barrel and heart axle produce relative displacement, and shearing cuts off, cut
Key seat and outer barrel are separated with heart axle, and the elastic force of spring and main spring, which is discharged, makes slips leave heart axle, slide downward, by opening
State is changed into contraction state, so that slips is separated with flow controller, realizes that fishing spear is separated with flow controller, completes operation of slipping out of the hand, guarantor
Demonstrate,prove the safety of fishing spear tool string.
This interior punching fishing spear tool construction that the present invention is provided is simple, and manufacturing cost is low, it is easy to maintain, and effectively solves
The problem of flow controller because of fishing neck erosion has been difficult to, it is ensured that the normal production of gas well and other construction operations it is smooth
Carry out, meanwhile, device of being slipped out of the hand when occurring and can not go out flow controller from being located pipe nipple, it is ensured that construction safety.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of punching fishing spear instrument in the present invention.
Description of reference numerals：1st, top connection；2nd, heart axle；3rd, seat is cut off；4th, positioning sleeve；5th, outer barrel；6th, slips；7th, spring；
8th, main spring；9th, interior hexagonal flush end holding screw；10th, cut off；11st, straight pin.
Embodiment
Embodiment 1：
In order to overcome existing flow controller fishing neck is difficult to salvaging after erosion attack the problem of, one kind is present embodiments provided
Interior punching fishing spear instrument as shown in Figure 1, including top connection 1, heart axle 2, cut off seat 3, outer barrel 5 and slips 6, the top connection
Screwed connection between 1 and heart axle 2, it is described to cut off screwed connection between the lower end of seat 3 and outer barrel 5, cut off seat 3 and outer barrel 5 is placed on the heart
The outside of axle 2, described to cut off seat 3 and fixed by cutting off 10 with heart axle 2, the slips 6 is socketed in outside the lower end of heart axle 2, and card
Watts 6 tail end is placed between heart axle 2 and outer barrel 5, and the front end of slips 6 is close to the end of heart axle 2, the heart for cutting off the lower section of seat 3
Positioning sleeve 4 is provided with axle 2, described cut off is provided with main spring 8 between seat 3 and positioning sleeve 4, it is described cut off seat 3 and slips 6 it
Between be provided with spring 7, spring 7 and main spring 8 are in compressive state.
The operation principle for this interior punching fishing spear instrument that the present invention is provided is as follows：
Spring 7 is in slips 6 and cut off between seat 3, is connected due to cutting off seat 3 with heart axle 2 by cutting off 10, so spring
7 remain the thrust to the tail end of slips 6, the front end of slips 6 is close to the end of heart axle 2, open-shaped state；Carry out fishing
When, slips 6 enters in flow controller extension tubing, and it makes slips 6 remain to guarantor by resistance, but due to thrust of the spring 7 to slips 6
Hold open configuration and be caught in flow controller extension tubing, so as to reach the purpose of capture flow controller.
Upward jarring is can be carried out after slips 6 is caught in flow controller extension tubing, acts flow controller.
But if there is flow controller and being accomplished by when can not play out the situation for being located pipe nipple progress to slip out of the hand operation, make fishing spear with
Flow controller is separated, it is ensured that the safety of fishing spear tool string；Its operation principle：Downward jarring operation is carried out, makes the outer barrel 5 of fishing spear
Relative displacement is produced with heart axle 2,10 is cut off, cuts off seat 3 and outer barrel 5 is separated with heart axle 2, the elastic force of spring 7 and main spring 8
Discharging makes slips 6 may exit off heart axle 2, and slide downward, slips 6 is changed into contraction state from open configuration, thus slips 6 with
Flow controller is separated.
In addition, being fixed between the top connection 1 and heart axle 2 by interior hexagonal flush end holding screw 9；The positioning sleeve 4 and the heart
Fixed between axle 2 by elastic cylindrical pin 11.
The end of heart axle 2 is tubaeform step；The tubaeform slope in the end of heart axle 2 and the inner surface inclined-plane of slips 6
Gradient is consistent.
Embodiment 2：
On the basis of embodiment 1, carry out salvaging flow controller construction operation in SN0114-20H wells.The underground enters flow controller
2 pressure gauges of lower suspension, sand cap is not installed.
The work progress that the interior punching fishing spear instrument provided using the present invention salvages flow controller is as follows：
First, fishing tool string is connected：Rope socket and variable buckle（Φ44×350mm）+ weighted lever（Φ44×1530mm）+ spring
Bumper jar（Φ44×1650mm）+ universal joint（Φ44×340mm）+ mechanic jar（Φ44×1750mm）+ universal joint（Φ44
×340mm）+ variable buckle（Φ44×150mm）+ interior punching fishing spear instrument（Φ44×440mm）, overall length 6.55m.
Then, the above-mentioned fishing tool string connected is entered into lubricator after fixed day, lower sheave, opened after shaft collar
Fishing tool seals in well；To weighing at 3110 meters under the fishing tool string, tension force 315kg, free tension 275kg are above carried；Salvage
To being hampered at 3133m under tool string, above carry tension force twice and go up to 600kg, illustrate in punching fishing spear instrument have been enter into section
Flow in device extension tubing, and slips 6 has been caught in flow controller elongation inside pipe wall.But above carry to 600kg tension force, spring bumper jar is not
Work, flow controller can not be still played out 60 times using the upward jarring of mechanic jar；It is excessive in view of jarring number of times, steel wire rope fatigue
There is risk of breakage at degree and rope socket, act fishing tool string and change rope socket, downward jarring is once cut off and smoothly rises after pin
Tool string.
Change after rope socket, fishing tool string（Composition situation is ibid）Enter well for the second time；To at 3100m under the fishing tool string
Weigh and above carry tension force 315kg, free tension 280kg, under to being hampered at 3133m, above carry tension force twice and rise to 600kg, but spring
Bumper jar does not work, and after the upward jarring of mechanic jar the 13rd time, tension force declines suddenly, free tension 290kg, judges section
Stream device is risen to be located pipe nipple；Observation flow controller fishing neck is corroded completely after flow controller rises.
In summary, this interior punching fishing spear tool construction that the present invention is provided is simple, and manufacturing cost is low, it is easy to protect
Support, efficiently solve the problem of flow controller has been difficult to because of fishing neck erosion, it is ensured that the normal production of gas well and other apply
Work industry is smoothed out, meanwhile, device of being slipped out of the hand when occurring and can not go out flow controller from being located pipe nipple, it is ensured that construction peace
Entirely；In addition, being hung with the subproblem flow controller of the pressure gauge for production test for lower end, the interior punching fishing spear is utilized
It is that measuring unit saves production cost that instrument, which acts flow controller, it is to avoid the wasting of resources.
It is exemplified as above be only to the present invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (4)
1. a kind of interior punching fishing spear instrument, it is characterised in that：Including top connection (1), heart axle (2), cut off seat (3), outer barrel (5)
With slips (6), screwed connection between the top connection (1) and heart axle (2) is described to cut off silk between seat (3) lower end and outer barrel (5)
Button connection, cuts off seat (3) and outer barrel (5) is placed on the outside of heart axle (2), the seat (3) that cuts off is by cutting off (10) and heart axle (2)
Fixed, the slips (6) is socketed in outside heart axle (2) lower end, and slips (6) tail end be placed in heart axle (2) and outer barrel (5) it
Between, the front end of slips (6), which is close on heart axle (2) end, the heart axle (2) cut off below seat (3), is provided with positioning sleeve
(4), described cut off is provided with main spring (8) between seat (3) and positioning sleeve (4), and described cut off sets between seat (3) and slips (6)
Spring (7) is equipped with, spring (7) and main spring (8) are in compressive state；Pass through elasticity between the positioning sleeve (4) and heart axle (2)
Straight pin (11) is fixed.
2. punching fishing spear instrument in as claimed in claim 1, it is characterised in that：Between the top connection (1) and heart axle (2)
It is fixed by interior hexagonal flush end holding screw (9).
3. punching fishing spear instrument in as claimed in claim 1, it is characterised in that：Heart axle (2) end is tubaeform
Rank.
4. punching fishing spear instrument in as claimed in claim 3, it is characterised in that：The tubaeform inclined-plane in heart axle (2) end
Gradient is consistent with slips (6) inner surface slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287790.0A CN104963643B (en) | 2015-05-29 | 2015-05-29 | A kind of interior punching fishing spear instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287790.0A CN104963643B (en) | 2015-05-29 | 2015-05-29 | A kind of interior punching fishing spear instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104963643A CN104963643A (en) | 2015-10-07 |
| CN104963643B true CN104963643B (en) | 2017-10-03 |
Family
ID=54217704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510287790.0A Active CN104963643B (en) | 2015-05-29 | 2015-05-29 | A kind of interior punching fishing spear instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104963643B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519137A (en) * | 2018-11-30 | 2019-03-26 | 四川圣诺油气工程技术服务有限公司 | A kind of downhole-choke release tool |
| CN110805405A (en) * | 2019-10-15 | 2020-02-18 | 中煤科工集团西安研究院有限公司 | Internal clamping type drill rod fishing tool and fishing method thereof |
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|---|---|---|---|---|
| US3960399A (en) * | 1974-12-16 | 1976-06-01 | Alex Dufrene | Setting and retrieval device for down-hole equipment |
| CN200946477Y (en) * | 2006-05-11 | 2007-09-12 | 冀东石油勘探开发公司 | Multifunctional hydraulic quit type reversing fishing device capable of resisting falling |
| CN201024938Y (en) * | 2007-03-14 | 2008-02-20 | 中国海洋石油总公司 | A hydraulic pressure release and salvage tool |
| CN201068764Y (en) * | 2007-07-05 | 2008-06-04 | 辽河石油勘探局 | Retreating hydraulic slip spear |
| CN201367880Y (en) * | 2009-02-02 | 2009-12-23 | 南玉华 | Telescoping spear |
| CN101956538A (en) * | 2010-10-18 | 2011-01-26 | 大庆油田有限责任公司 | Hydraulic retractable fishing spear |
| CN201778717U (en) * | 2010-08-31 | 2011-03-30 | 陈虎 | Novel underground fishing tool |
| CN201778718U (en) * | 2010-09-26 | 2011-03-30 | 中国石油化工股份有限公司 | Anti-ejection locking fishing spear |
| CN204677146U (en) * | 2015-05-29 | 2015-09-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Punching fishing spear instrument in a kind of |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2599952A1 (en) * | 2011-11-30 | 2013-06-05 | Welltec A/S | Pulling tool |
-
2015
- 2015-05-29 CN CN201510287790.0A patent/CN104963643B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960399A (en) * | 1974-12-16 | 1976-06-01 | Alex Dufrene | Setting and retrieval device for down-hole equipment |
| CN200946477Y (en) * | 2006-05-11 | 2007-09-12 | 冀东石油勘探开发公司 | Multifunctional hydraulic quit type reversing fishing device capable of resisting falling |
| CN201024938Y (en) * | 2007-03-14 | 2008-02-20 | 中国海洋石油总公司 | A hydraulic pressure release and salvage tool |
| CN201068764Y (en) * | 2007-07-05 | 2008-06-04 | 辽河石油勘探局 | Retreating hydraulic slip spear |
| CN201367880Y (en) * | 2009-02-02 | 2009-12-23 | 南玉华 | Telescoping spear |
| CN201778717U (en) * | 2010-08-31 | 2011-03-30 | 陈虎 | Novel underground fishing tool |
| CN201778718U (en) * | 2010-09-26 | 2011-03-30 | 中国石油化工股份有限公司 | Anti-ejection locking fishing spear |
| CN101956538A (en) * | 2010-10-18 | 2011-01-26 | 大庆油田有限责任公司 | Hydraulic retractable fishing spear |
| CN204677146U (en) * | 2015-05-29 | 2015-09-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Punching fishing spear instrument in a kind of |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104963643A (en) | 2015-10-07 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20201120 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: 710018 Shaanxi province Xi'an Weiyang Changqing Changqing prosperous Park District Building Room 1207 Patentee before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. |