CN204371179U - A kind of controlled anti-sticking Oil/gas Well casing tube shaping device - Google Patents
A kind of controlled anti-sticking Oil/gas Well casing tube shaping device Download PDFInfo
- Publication number
- CN204371179U CN204371179U CN201420867919.6U CN201420867919U CN204371179U CN 204371179 U CN204371179 U CN 204371179U CN 201420867919 U CN201420867919 U CN 201420867919U CN 204371179 U CN204371179 U CN 204371179U
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- housing
- slide block
- guide way
- gas well
- moving spring
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Abstract
The utility model relates to a kind of controlled anti-sticking Oil/gas Well casing tube shaping device, and belong to oil gas field down-hole casing reshaping and renovation tools technical field, it is made up of housing, connector, supercharging actuating unit, reshaping device, resetting-mechanism and guide way; Housing circumference axially evenly installs four trim panels, and supercharging actuating unit is made up of booster and piston, reshaping device has the slide block and trim panel that are connected by projection; Resetting-mechanism is made up of loop fasteners, back-moving spring and guide way, is provided with back-moving spring in the annular space of loop fasteners and guide way, and the upper end of back-moving spring is connected with body, is arranged on housing cavity bottom boss bottom guide way.The utility model shaping area is large, good airproof performance, not easily bit freezing, long service life, shaping construction can be repeated, improve the shaping efficiency of Oil/gas Well.
Description
Technical field
The present invention relates to a kind of downhole tool for Oil/gas Well maintenance, be a kind of for down-hole casing shaping, especially relate to a kind of controlled anti-sticking Oil/gas Well casing tube shaping device of movable trim panel.
Background technology
In oilfield process, due to reasons such as stratum wrigglings, often make down-hole casing generation radial deformation, caliber is narrowed, affect Oil/gas Well and normally produce.Casing failure seriously affects the normal exploitation of oil and natural gas, sometimes even the serious accident such as blowout occurs, causes casualties, stop work and production, the major accident such as environment pollution, causes huge economic loss.The domestic and international reparation to sleeve pipe at present adopts the casing repair technologies such as explosive shaping, the shaping of pyriform tube expander and rolling-ball shaper shaping more, but these technology all exist some shortcomings.Explosive shaping expense expenditure is higher, and large to sleeve pipe injury, easily occurs that instrument falls well accident; Pyriform tube expander, with certain velocity shock casing swage, causes the secondary damage of sleeve pipe and cement sheath; The complete rear easy generation stuck phenomenon of rolling-ball shaper shaping, causes repair failure.
Summary of the invention
The purpose of this utility model is that the shaping efficiency overcoming the existence of above-mentioned prior art is low, to defects such as large, the easy bit freezings of sleeve pipe injury, provide a kind of controlled anti-sticking Oil/gas Well casing tube shaping device.
The purpose of this utility model is achieved in that it is made up of successively housing, connector, supercharging actuating unit, reshaping device, resetting-mechanism and guide way.Connector upper end is connected with tubing string by screw thread, and lower end is connected with housing by screw thread, and housing circumferentially has four equally distributed holes, and housing lower end is guide cone; In housing cavity, supercharging actuating unit is made up of booster, sealing ring and piston, and booster has two bellmouths, piston is connected with upper end of slide block; Reshaping device is made up of slide block and trim panel, and slide block side has three inclined planes, slide block is connected by the protruding guide rail on inclined plane with trim panel, and trim panel is arranged in housing bore, and slide block lower end contacts with back-moving spring; Resetting-mechanism installs loop fasteners, back-moving spring and guide way successively in housing radial direction, and on guide way, lead coordinates with slide block inner hole surface, and guide way is arranged on housing cavity bottom boss.
The beneficial effects of the utility model are: slide block can move axially, when needing after completing deformed casing reparation task to take out downhole tool, only need reduce ground pump pressure, slide block axially will move under the restoring force effect of back-moving spring, trim panel also radial contraction thereupon, thus trip out tubing string smoothly, avoid lock of tool drilling to occur; As long as control ground hydraulic size, just can control hydraulic pressure in underground booster, thus effectively can control casing swage power size; Four trim panels of circumference distribution simultaneously can increase effective shaping area, improve shaping efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional view at the A-A place of Fig. 1;
In figure, 1 connector, 2 boosters, 3 sealing rings, 4 pistons, 5 slide blocks, 6 trim panels, 7 housings, 8 back-moving springs, 9 loop fasteners, 10 guide waies, 11 guide cones.
Detailed description of the invention
Below in conjunction with drawings and embodiments, the utility model is described further.
As shown in Figure 1, the utility model is made up of successively housing 7, connector 1, supercharging actuating unit, reshaping device, resetting-mechanism and guide way 10 from top to bottom.Connector 1 upper end is connected with tubing string by screw thread, and lower end is connected with housing 7 by screw thread, and housing 7 circumferentially has four equally distributed holes, and housing 7 lower end is guide cone 11; In housing 7 inner chamber, supercharging actuating unit is made up of with piston 4 booster 2, sealing ring 3, and booster 2 has two bellmouths, piston 4 lower end is connected with slide block 5 upper end; Reshaping device is made up of slide block 5 and trim panel 6, and slide block 5 side has three inclined planes, slide block 5 is connected by the protruding guide rail on inclined plane with trim panel 6, and trim panel 6 is arranged in housing 7 hole, and slide block 5 lower end contacts with back-moving spring 8; Resetting-mechanism installs loop fasteners 9, back-moving spring 8 and guide way 10 successively in housing 7 radial direction, and on guide way 10, lead coordinates with slide block 5 inner hole surface, and guide way 10 is arranged on housing 7 intracavity bottom boss.
As shown in Figure 2, slide block 5 is connected with trim panel 6 by protruding guide rail, and trim panel 6 is circumferentially evenly distributed in four holes of housing 7.
This controlled anti-sticking Oil/gas Well casing tube shaping device is arranged on tubing string hypomere, under deliver to when reaching casing deformation position, surface pump builds the pressure, supercharging behind the cone hole that liquid is opened by booster, promotion piston moves downward, piston promotes slide block and moves axially downwards, makes trim panel radial outward dilations, thus plays expanding tube reshaping effect.After surface pump pressure release, body under the restoring force effect of back-moving spring on move, trim panel shrink, upwards mention tubing string, then instrument rotated a certain angle, repeat above-mentioned shaping construction, until complete the whole circumferential shaping of deformed casing.
Claims (2)
1. a controlled anti-sticking Oil/gas Well casing tube shaping device, be made up of housing (7), connector (1), supercharging actuating unit, reshaping device, resetting-mechanism and guide way (10), it is characterized in that: connector (1) upper end is connected with tubing string by screw thread, lower end is connected with housing (7) by screw thread, housing (7) circumferentially has four equally distributed holes, and housing (7) lower end is guide cone (11); In housing (7) inner chamber, supercharging actuating unit is made up of with piston (4) booster (2), sealing ring (3), booster (2) has two bellmouths, piston (4) lower end is connected with slide block (5) upper end; Reshaping device is made up of slide block (5) and trim panel (6), slide block (5) side there are three inclined planes, slide block (5) is connected by the protruding guide rail on inclined plane with trim panel (6), trim panel (6) is arranged in housing (7) hole, and slide block (5) lower end contacts with back-moving spring (8); Resetting-mechanism installs loop fasteners (9), back-moving spring (8) and guide way (10) successively in housing (7) radial direction, the upper lead of guide way (10) coordinates with slide block (5) inner hole surface, and guide way (10) is arranged on housing (7) intracavity bottom boss.
2. one according to claim 1 controlled anti-sticking Oil/gas Well casing tube shaping device, it is characterized in that: the side of slide block (5) has three rectangle inclined planes up and down, and there is protruding guide rail in face, trim panel (6) is arranged on protruding guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867919.6U CN204371179U (en) | 2014-12-31 | 2014-12-31 | A kind of controlled anti-sticking Oil/gas Well casing tube shaping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867919.6U CN204371179U (en) | 2014-12-31 | 2014-12-31 | A kind of controlled anti-sticking Oil/gas Well casing tube shaping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371179U true CN204371179U (en) | 2015-06-03 |
Family
ID=53327408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420867919.6U Expired - Fee Related CN204371179U (en) | 2014-12-31 | 2014-12-31 | A kind of controlled anti-sticking Oil/gas Well casing tube shaping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371179U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224688A (en) * | 2016-07-29 | 2016-12-14 | 武汉大学 | A kind of novel Double Oblique Wedge inner hole expanding device |
| CN106437591A (en) * | 2016-11-25 | 2017-02-22 | 中国石油大学(华东) | Hydraulic ball-type casing reshaping device |
| CN110863789A (en) * | 2019-12-10 | 2020-03-06 | 贵州高峰石油机械股份有限公司 | Hydraulic shaping device and shaping method |
| CN113047799A (en) * | 2021-05-21 | 2021-06-29 | 长江大学 | Explosive type sleeve pipe shaping tool |
| CN115749656A (en) * | 2022-12-05 | 2023-03-07 | 西南石油大学 | Impact type deformed casing repairing tool |
| CN116624117A (en) * | 2023-07-19 | 2023-08-22 | 西南石油大学 | Self-control radial circulation type oil-gas well casing shaping tool and method |
-
2014
- 2014-12-31 CN CN201420867919.6U patent/CN204371179U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224688A (en) * | 2016-07-29 | 2016-12-14 | 武汉大学 | A kind of novel Double Oblique Wedge inner hole expanding device |
| CN106224688B (en) * | 2016-07-29 | 2018-02-09 | 武汉大学 | A kind of new Double Oblique Wedge inner hole expanding device |
| CN106437591A (en) * | 2016-11-25 | 2017-02-22 | 中国石油大学(华东) | Hydraulic ball-type casing reshaping device |
| CN106437591B (en) * | 2016-11-25 | 2018-09-04 | 中国石油大学(华东) | A kind of hydraulic pressure ball type truing device for sleeve pipes |
| CN110863789A (en) * | 2019-12-10 | 2020-03-06 | 贵州高峰石油机械股份有限公司 | Hydraulic shaping device and shaping method |
| CN113047799A (en) * | 2021-05-21 | 2021-06-29 | 长江大学 | Explosive type sleeve pipe shaping tool |
| CN113047799B (en) * | 2021-05-21 | 2023-03-14 | 长江大学 | Explosive type sleeve pipe shaping tool |
| CN115749656A (en) * | 2022-12-05 | 2023-03-07 | 西南石油大学 | Impact type deformed casing repairing tool |
| CN115749656B (en) * | 2022-12-05 | 2024-05-14 | 西南石油大学 | Impact type deformed sleeve repairing tool |
| CN116624117A (en) * | 2023-07-19 | 2023-08-22 | 西南石油大学 | Self-control radial circulation type oil-gas well casing shaping tool and method |
| CN116624117B (en) * | 2023-07-19 | 2023-09-26 | 西南石油大学 | Self-control radial circulation type oil-gas well casing shaping tool and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |