CN208870560U - A kind of down-hole casing apparatus for shaping - Google Patents
A kind of down-hole casing apparatus for shaping Download PDFInfo
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- CN208870560U CN208870560U CN201821383730.4U CN201821383730U CN208870560U CN 208870560 U CN208870560 U CN 208870560U CN 201821383730 U CN201821383730 U CN 201821383730U CN 208870560 U CN208870560 U CN 208870560U
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- jar
- connect
- tube expander
- jarring
- casing
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Abstract
The utility model discloses a kind of down-hole casing apparatus for shaping, it is applied to casing swage technical field, it includes bumper jar and hollow tube expander, the upper end of the bumper jar is connect with tubing string, the lower end of bumper jar is connect with tube expander, the bumper jar includes weighted lever, hollow jar stem and jarring cylinder, the upper end of the weighted lever is connect with tubing string, the lower end of weighted lever is connect with jar stem, the jar stem is slidably connected with jarring cylinder, the lower end of the jarring cylinder is connect with tube expander, the utility model structure is simple, design is reasonable, it is suitable for the reparations of the casing deformation of different latus rectums, reduce tool changing workload, increase the impact force of tube expander, improve shaping efficiency, two-way expanding tube plastic operation upward or downward can be achieved, preferably advantage is provided for casing swage.
Description
Technical field
The utility model relates to casing swage technical field, specifically a kind of down-hole casing apparatus for shaping.
Background technique
Casing has been widely used in fixing oil, the gas and water well borehole wall or isolation formation fluid to be protected with preventing cave-in
Hinder shaft safety, is convenient for drilling operation and resource exploitation.Changed by engineering construction, environmental corrosion and faulting, crustal stress
Etc. factors influence, down-hole casing often occurs the damaged conditions such as rupture, deformation, perforation, bad break, run through casing size caused to become
It is small, cause major diameter tool can not be by influencing to produce.
In order to repair the casing deformation that underground is commonly encountered, it must generally put into reshaping and renovation tools and matched serial taper is swollen
Swollen head, using repeatedly it is swollen repair by the way of casing deformation section is swollen to claimed range, realize the reparation to casing, ensure shaft safety
And subterranean resource is normally exploited.
The previous method by increasing drilling tool weight improves impact and crowded expansive force, ineffective, and replaces drilling tool and tool
Operation is more frequent, larger workload.
Utility model content
The utility model technical issues that need to address are to provide a kind of down-hole casing apparatus for shaping, for improve impact force and
Expansive force is squeezed, bumper jar is added on former tube expander and increases tube expansion impact force, avoids swollen motionless casing or shaping tool bit freezing
The case where can not mentioning generation.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
The utility model includes bumper jar and hollow tube expander, and the upper end of the bumper jar is connect with tubing string, bumper jar
Lower end connect with tube expander, the bumper jar includes weighted lever, hollow jar stem and jarring cylinder, the upper end of the weighted lever
It is connect with tubing string；The lower end of weighted lever is connect with jar stem, and the jar stem is slidably connected with jarring cylinder, under the jarring cylinder
End is connect with tube expander.
Further improvement of the utility model is: the both ends of the jar stem are respectively equipped with jarring head, jar stem upper end
Jarring head and weighted lever lower end connect.
Further improvement of the utility model is: the jar stem is slidably connected by anvil block and jarring cylinder, the anvil
Seat is fixedly connected with jarring cylinder, and the junction of the anvil block and jar stem is equipped with sealing rubber ring.
Further improvement of the utility model is: the barrel of the jarring cylinder is equipped with pressure guide hole.
Further improvement of the utility model is: the tube expander is the biconial that intermediate thick, both ends are long taper
Structure.
Further improvement of the utility model is: the outer surface of the tube expander offers sink.
By adopting the above-described technical solution, the beneficial effect that the utility model obtains is:
The utility model simple structure and reasonable design, the setting of bumper jar can increase the impact force of tube expander, avoid tube expansion
The case where device is swollen motionless casing or shaping tool bit freezing can not mention in casing.Taper tube expander is adapted to different diameter through sleeve
The wellbore conditions of deformation, easy to operate, effect is preferable.
The utility model is suitable for the casing deformation reparation of different latus rectums, reduces tool changing workload；It increases swollen
The impact force of pipe device improves shaping efficiency；Two-way expanding tube plastic operation upward or downward may be implemented；It underground can be in
Empty tube column realizes the pressure release drop resistance of well liquid (oil) circulation, preferably provides advantage for casing swage.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model.
Wherein, 1, weighted lever；2, jarring head；3, jar stem；4, anvil block；5, jarring cylinder；6, tube expander；7, sink.
Specific embodiment
The utility model is described in further details below with reference to embodiment:
A kind of down-hole casing apparatus for shaping, as shown in Figure 1 comprising bumper jar and hollow tube expander 6, the bumper jar
Upper end connect with tubing string, the lower end of bumper jar is connect with tube expander 6, and bumper jar, jarring are arranged between tubing string and tube expander 6
The setting of device can increase the impact force of tube expander, and the motionless casing of casing roller expansion or shaping tool bit freezing is avoided can not to mention in casing
The case where.
As shown in Figure 1, the bumper jar includes weighted lever 1, hollow jar stem 3 and jarring cylinder 5, the weighted lever 1
The connection of the lower thread of upper end and tubing string, the lower end of weighted lever 1 are connect with jar stem 3, and tubing string is long, more than several hundred rice to 1,000
Rice differs, and the standard tubing that tubing string is 9m or so is that single long round buckle is threadedly coupled, and tubing string and weighted lever 1 are screw thread company
It connects.Tubing string is the common oil pipe column of oil gas field, for connecting, transferring or lifting workover tool in well, and is transferring or is lifting
Shi Yundong provides kinetic energy for jarring well workover；The weighted lever 1 is the thicker oil pipe of a root canal wall, rises and improves tube column strength and stabilization
The effect of tubing string.
The jar stem 3 is slidably connected with jarring cylinder 5, and the jar stem 3 is slidably connected by anvil block 4 with jarring cylinder 5, institute
It states anvil block 4 to be fixedly connected with jarring cylinder 5, the junction of the anvil block 4 and jar stem 3 is equipped with sealing rubber ring, the sealing rubber ring
For O-shaped dynamic sealing cushion rubber.The barrel of the jarring cylinder 5 is equipped with pressure guide hole, and the inside and outside of jarring cylinder 5 can be connected in the setting of pressure guide hole
The lower end of pressure, the jarring cylinder 5 is connect with tube expander 6.
The tube expander 6 is the biconial structure that intermediate thick, both ends are long taper, which makes taper tube expander 6
Cross component force is generated when working face and casing deformation location contacts, makes the expanding reset of casing by rushing swollen, crowded bulging deformation position, fits
For the wellbore conditions of different distortion latus rectum, lifting and decentralization tube expansion can be completed, realizes two-way expanding tube operation, and be able to achieve well
Liquid (oil) circulation flushing or lubricating function.
The outer surface of the tube expander 6 offers sink 7, is filled with water in well, if being not provided with sink 7, shaft bottom water
Can be by the closed pressurization of workover tool, water has elastic potential energy release (compression or stretching), influences shock effect, the setting of sink 7
Wellbore pressure when facilitating casing swage outside conducting tube expander 6, plays the role of pilot.As it can be seen that pressure guide hole is set on jarring cylinder 5
The setting with 6 outer surface sink 7 of tube expander is set, ensure that the pressure balance inside and outside the casing for needing shaping or more and tubing string,
Reduce resistance when tubing string activity.
In implementation process, first according to underground latus rectum select suitable diameter tube expander 6, by the upper end of tube expander 6 with
The jarring cylinder 5 of bumper jar connects, and is connected with the weighted lever 1 of tubing string and bumper jar.
Well workover pipe string is gone into the well under the action of winch, when decentralization is hampered, is gradually increased downward jarring force from light to heavy
The working face of tube expander 6 and casing deformation location contacts are gradually generated cross component force by degree, by rushing swollen, crowded bulging deformation portion
Position makes the expanding reset of casing, resets the casing of deformation, until expanding tube reshaping tool smoothly passes downwardly through.
Well workover pipe string is above mentioned under the action of winch, when above mention be hampered when, be gradually increased upward jarring force from light to heavy
The working face of tube expander 6 and casing deformation location contacts are gradually generated cross component force by degree, by rushing swollen, crowded bulging deformation portion
Position make the expanding reset of casing, make deformation casing reset, until expanding tube reshaping tool smoothly upwardly through.
By it is above repeatedly up and down jarring, down through the Plastic renovation to deformed casing can be completed.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or be equal to part of technical characteristic
Replacement；And these are modified or replaceed, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (6)
1. a kind of down-hole casing apparatus for shaping, it is characterised in that: including bumper jar and hollow tube expander (6), the bumper jar
Upper end connect with tubing string, the lower end of bumper jar is connect with tube expander (6)；
The bumper jar includes weighted lever (1), hollow jar stem (3) and jarring cylinder (5), the upper end of the weighted lever (1) with
Tubing string connection, the lower end of weighted lever (1) are connect with jar stem (3), and the jar stem (3) is slidably connected with jarring cylinder (5), described
The lower end of jarring cylinder (5) is connect with tube expander (6).
2. a kind of down-hole casing apparatus for shaping according to claim 1, it is characterised in that: the both ends of the jar stem (3)
It is respectively equipped with jarring head (2), the jarring head (2) of jar stem (3) upper end is connect with the lower end of weighted lever (1).
3. a kind of down-hole casing apparatus for shaping according to claim 2, it is characterised in that: the jar stem (3) passes through anvil
Seat (4) is slidably connected with jarring cylinder (5), and the anvil block (4) is fixedly connected with jarring cylinder (5), the anvil block (4) and jar stem
(3) junction is equipped with sealing rubber ring.
4. a kind of down-hole casing apparatus for shaping according to claim 3, it is characterised in that: the barrel of the jarring cylinder (5)
It is equipped with pressure guide hole.
5. a kind of down-hole casing apparatus for shaping according to claim 1, it is characterised in that: the tube expander (6) is centre
Slightly, both ends are the biconial structure of long taper.
6. a kind of down-hole casing apparatus for shaping according to claim 5, it is characterised in that: the appearance of the tube expander (6)
Face offers sink (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821383730.4U CN208870560U (en) | 2018-08-27 | 2018-08-27 | A kind of down-hole casing apparatus for shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821383730.4U CN208870560U (en) | 2018-08-27 | 2018-08-27 | A kind of down-hole casing apparatus for shaping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870560U true CN208870560U (en) | 2019-05-17 |
Family
ID=66465712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821383730.4U Active CN208870560U (en) | 2018-08-27 | 2018-08-27 | A kind of down-hole casing apparatus for shaping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870560U (en) |
-
2018
- 2018-08-27 CN CN201821383730.4U patent/CN208870560U/en active Active
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