CN203130006U - Combined ball pipe expander - Google Patents
Combined ball pipe expander Download PDFInfo
- Publication number
- CN203130006U CN203130006U CN 201320110191 CN201320110191U CN203130006U CN 203130006 U CN203130006 U CN 203130006U CN 201320110191 CN201320110191 CN 201320110191 CN 201320110191 U CN201320110191 U CN 201320110191U CN 203130006 U CN203130006 U CN 203130006U
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- CN
- China
- Prior art keywords
- ball
- tube expander
- combined type
- swage
- row
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a combined ball pipe expander which comprises a variable-diameter ball pipe expander and a ball straightener which are connected to be of an integral structure through a connecting pipe. The upper end of the variable-diameter ball pipe expander is connected at the lower end of the connecting pipe in a threaded manner, and the lower end of the straightener is connected at the upper end of the connecting pipe in a threaded manner. Under the action of upper-portion hydraulic thrust or upper-portion downward impact force, the variable-diameter ball pipe expander performs squeezing, expanding and diameter expanding to a deformed sleeve and releases a shaping pipe column after passing through a deformed section, the ball straightener straights a bent part at the deformed section, and after the bent and deformed section is fully straightened, a next casing deformed section can be continued to be shaped. When the combined ball pipe expander is used for casing repair, construction is simple, well repair success rate is high, well repair expanse is low, and the combined ball pipe expander has remarkable economic benefit.
Description
Technical field
The utility model relates to the sleeve pipe fix tool, and is specifically a kind of for the reparation bending of oil gas field and the combined type ball tube expander of necking deformation sleeve pipe.
Background technology
In the Oilfield developing process, because the influence of various factors, down-hole casing often produces undergauge and flexural deformation, have in addition break and bad break, often cause downhole tool to be blocked, in the unfreezing process, what have is broken, and pulls and falls into the shaft bottom, causes the accident.For water injection well, when being lowered to major diameter instrument such as packer at needs, because casing deformation and can't pass through deformation section have to be descended the packer of little one-level, or carry out mixed water injection.Had a strong impact on the ordinary production in oil field.Therefore, the reparation of deformed casing has great significance to oilfield stimulation and stable yields.Present domestic deformed casing fix tool mainly contains: the pyriform tube expander, eccentric roller reshaper mills that taper thread grinding mills or technical measures such as explosive shaping.Above technology only has certain effect to the sleeve pipe of necking deformation, but because their length is short, little to diastrophic sleeve pipe effect, and all to be undergauge the add crooked distortion of the distortion majority of sleeve pipe, so after using these to repair the cover instrument and repair cover, the drift size gauge tool of following suitable diameter still can't pass deformation section.During overhaul, repair cover with the pyriform tube expander after, the situation that drift size gauge tool cannot get through is a lot, have to carry out destructive milling to deformation section with long facing cut awl at last, makes distortion place casing wall become thinner or windows, non-deformability is more weak, has aggravated the bigger distortion of sleeve pipe.
The utility model content
The purpose of this utility model is to provide combined type ball tube expander, can repair deformed casing, and particularly the flexural deformation sleeve pipe can shorten the well workover cycle, reduces workover cost, increases economic efficiency.
In order to reach above-mentioned purpose, the utility model provides following technical scheme: combined type ball tube expander, comprise reducing ball tube expander, ball swage, described reducing ball tube expander and ball swage are by the tube connector formula structure that links into an integrated entity, described reducing ball tube expander upper end is connected the tube connector lower end by engage thread, and described ball swage lower end is connected the tube connector upper end by engage thread.
Described reducing ball tube expander external peripheral surface car is the step axle of different-diameter, and diameter is ascending from the bottom up to distribute step by step, is inlaid with at least two row's balls on the step axle of every section diameter, two adjacent row's balls setting of staggering.
Described adjacent step shaft diameter in twos differs 2-6mm.
At least 6 of the every row's ball of described reducing ball tube expander settings, ball are enclosed in the spherical groove or cylindrical groove that reducing ball tube expander external surface offers, and be gapped between ball and spherical groove or the cylindrical groove, and the notch flange is handled, and makes ball can not fall groove.
Described ball swage external peripheral surface is inlaid with 15-28 row ball, two adjacent row's balls setting of staggering.
At least 6 of every row's ball settings on the described ball swage, ball are enclosed in the spherical groove or cylindrical groove that ball swage external surface offers, and be gapped between ball and spherical groove or the cylindrical groove, and the notch flange is handled, and makes ball can not fall groove.
Described reducing ball tube expander lowermost end is the guide shoe top guide of bullet hair style.
Described tube connector length is greater than 400mm.
Compared to prior art, the utlity model has following beneficial effect:
The top hydraulic thrust or on the subordinate hit under the effect of power, reducing ball tube expander squeezes the hole enlargement of expanding to deformed casing, after it passes through deformation section, transfer the shaping tubing string, by the ball swage part of deformation section place bending is carried out alignment, after to the abundant alignment of flexural deformation section, can continue next section deformed casing is carried out integer.Use this utility model to repair cover, construction is simple, well workover success rate height, and workover cost is low, has remarkable economic efficiency.
Description of drawings
Fig. 1 partly cuts open structural representation for combined type ball tube expander of the present utility model.
Among the figure: 1, guide shoe top guide; 2, ball; 3, reducing ball tube expander; 4, tube connector; 5, ball swage; 6, ball.
The specific embodiment
Relevant detailed description of the present utility model and technology contents, conjunction with figs. is described as follows, however accompanying drawing only provides the usefulness of reference with explanation, and the utility model is limited.
According to shown in Figure 1, reducing ball tube expander 3, tube connector 4 and ball swage 5 three parts consist of combined type ball tube expander.3 pairs of deformed casings of reducing ball tube expander squeeze the hole enlargement of expanding, and behind deformation section, the part of 5 pairs of deformation section place bendings of ball swage is carried out alignment, after to the abundant alignment of flexural deformation section, can continue that next section cover is become section and carry out integer.Reducing ball tube expander 3 tops and tube connector 4 bottom thread connection, tube connector 4 tops and ball swage 5 bottom thread connection.Described reducing ball tube expander lowermost end is the guide shoe top guide 1 of bullet hair style.
Described reducing ball tube expander 3 segmentation cars are the axle of different-diameter, ascending distribution step by step, adjacent diameter differs 2-6mm, thereby reach the purpose of reducing, be inlaid with two rows and the above ball 2 of two rows on the axle of every section diameter, have angle to stagger between two adjacent row's balls 2, there is fluid course at the axle center.Described ball swage 5 is the axle with diameter, is inlaid with 15-28 row's ball 6 on the axle, has angle to stagger between two adjacent row's balls 6, and there is fluid course at the axle center.
Described tube connector 4 is used for separately reducing ball tube expander 3 and ball swage 5, makes reducing ball tube expander 3 and ball swage 5 can enter deformation section stage by stage and carries out shaping, in order to reduce the shaping resistance.
Every row's ball of described reducing ball tube expander 3 and ball swage 5 is at least 6, ball is enclosed in the spherical groove or cylindrical groove of reducing ball tube expander body and ball swage body, gapped between ball and spherical groove or the cylindrical groove, the notch flange is handled, and makes ball can not fall groove.
Another kind of embodiment of the present utility model is that if provide downforce with the mode of hydraulic pressure shaping, then the center of reducing ball tube expander and ball swage does not need to stay fluid course, can strengthen the bending resistance of instrument like this, improves the application life of instrument.
The above only is preferred embodiment of the present utility model, and non-in order to limit claim of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to claim of the present utility model.
Claims (8)
1. combined type ball tube expander, it is characterized in that, comprise reducing ball tube expander, ball swage, described reducing ball tube expander and ball swage are by the tube connector formula structure that links into an integrated entity, described reducing ball tube expander upper end is connected the tube connector lower end by engage thread, and described ball swage lower end is connected the tube connector upper end by engage thread.
2. combined type ball tube expander according to claim 1, it is characterized in that, described reducing ball tube expander external peripheral surface car is the step axle of different-diameter, diameter is ascending from the bottom up to distribute step by step, be inlaid with at least two row's balls on the step axle of every section diameter, the setting of staggering of adjacent two row's balls.
3. combined type ball tube expander according to claim 2 is characterized in that, described adjacent step shaft diameter in twos differs 2-6mm.
4. combined type ball tube expander according to claim 2, it is characterized in that, at least 6 of the every row's ball of described reducing ball tube expander settings, ball is enclosed in the spherical groove or cylindrical groove that reducing ball tube expander external surface offers, gapped between ball and spherical groove or the cylindrical groove, the notch flange is handled, and makes ball can not fall groove.
5. combined type ball tube expander according to claim 1 is characterized in that, described ball swage external peripheral surface is inlaid with 15-28 row ball, two adjacent row's balls setting of staggering.
6. combined type ball tube expander according to claim 5, it is characterized in that, at least 6 of every row's ball settings on the described ball swage, ball is enclosed in the spherical groove or cylindrical groove that ball swage external surface offers, gapped between ball and spherical groove or the cylindrical groove, the notch flange is handled, and makes ball can not fall groove.
7. combined type ball tube expander according to claim 1 is characterized in that, described reducing ball tube expander lowermost end is the guide shoe top guide of bullet hair style.
8. combined type ball tube expander according to claim 1 is characterized in that, described tube connector length is greater than 400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110191 CN203130006U (en) | 2013-03-12 | 2013-03-12 | Combined ball pipe expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110191 CN203130006U (en) | 2013-03-12 | 2013-03-12 | Combined ball pipe expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130006U true CN203130006U (en) | 2013-08-14 |
Family
ID=48937997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320110191 Expired - Fee Related CN203130006U (en) | 2013-03-12 | 2013-03-12 | Combined ball pipe expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130006U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138886A (en) * | 2018-10-24 | 2019-01-04 | 中国石油化工股份有限公司 | Underground deformed casing idler wheel reshaper and its application method |
| RU2810118C1 (en) * | 2023-03-20 | 2023-12-21 | Наиль Мулахметович Абдуллин | Device for straightening crumpled casing strings |
-
2013
- 2013-03-12 CN CN 201320110191 patent/CN203130006U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138886A (en) * | 2018-10-24 | 2019-01-04 | 中国石油化工股份有限公司 | Underground deformed casing idler wheel reshaper and its application method |
| RU2810118C1 (en) * | 2023-03-20 | 2023-12-21 | Наиль Мулахметович Абдуллин | Device for straightening crumpled casing strings |
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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: 20130814 Termination date: 20170312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |